Zone 165, Master Map
+16°00'
Normal View
Zone Master, Normal View, 10 deg FOV
θ
Chertan
+14°00'
Denebolaβ
e
c
M65
M66
+12°00'
Virgo
Leo
f
+08°00'
ξ
+10°00'
ι
d
ω
χ
π
+06°00'
ν
σ
12h 00m
11h 52m
11h 44m
11h 36m
11h 28m
11h 20m
11h 12m
11h 04m
Zone 165, Map 1
Normal Image
NGC 3485
NGC 3596 NGC 3596
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1527
h180
NGC 3489
NGC 3628
NGC 3623 M65
NGC 3627 M66 NGC 3623
NGC 3627
NGC 3593 NGC 3593
Heintz 360
+13°00'
NGC 3628
+14°00'
STF 1502
h174
Jonckheere 2079
+12°00'
IC 677
NGC 3491
NGC 3559
h2572
NGC 3666
Bpm 137
NGC 3666
NGC 3524NGC 3524
NGC 3506
+11°00'
IC 2822
NGC 3506
STF 1511
NGC 3547 NGC 3547
IC 664
NGC 3492
Iota Leoι
Jonckheere 81
STF 1528 rej
11h 30m
11h 25m
11h 20m
STF 1503
h172
11h 15m
11h 10m
11h 05m
11h 00m
Zone 165, Map 1
Mirror Image
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 3485
NGC 3596 NGC 3596
STF 1527
+14°00'
STF 1502
h180
NGC 3489
Heintz 360
NGC 3593
h174
+13°00'
NGC 3628 NGC 3628
NGC 3623
NGC 3623 M65
NGC 3627 M66
NGC 3627
NGC 3593
Jonckheere 2079
+12°00'
IC 677
NGC 3559
Hipparcos 1567
h2572
IC 2822
Bpm 137
NGC 3524
NGC 3666
NGC 3666
+11°00'
NGC 3524
NGC 3506 NGC 3506
STF 1511
NGC 3547
IC 664
NGC 3547
ι
Iota Leo
Jonckheere 81
STF 1528 rej
STF 1503
h172
11h 00m
11h 05m
11h 10m
11h 15m
11h 20m
11h 25m
11h 30m
Zone 165, Map 2
Normal Image
Jonckheere 81
STF 1528 rej
STF 1503
h172
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
IC 2637
IC 696
+09°00'
NGC 3705
IC 676
IC 2828
+08°00'
Jonckheere 1014
Kuiper 56
h2565
Chi Leo
h2553
+07°00'
χ
NGC 3526
STF 1507
IC 669
σ
59 Leo
Sigma Leo
NGC 3567
+06°00'
IC 670
h839
STF 1518
NGC 3535
11h 30m
11h 25m
11h 20m
11h 15m
11h 10m
NGC 3509
11h 05m
11h 00m
Zone 165, Map 2
Mirror Image
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Jonckheere 81
STF 1528 rej
STF 1503
h172
NGC 3692
NGC 3705
STF 1497 rej
IC 696
IC 698
IC 676
+09°00'
IC 2637
+08°00'
IC 2828
Kuiper 56
h2565
h2553
+07°00'
χ
NGC 3526
Chi Leo
STF 1507
IC 670
h839
59 Leo
+06°00'
IC 669
Sigma Leoσ
NGC 3567
STF 1518
NGC 3509
11h 00m
11h 05m
NGC 3535
11h 10m
11h 15m
11h 20m
11h 25m
11h 30m
Zone 165, Map 3
Normal Image
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
β
h4469
Denebola
Beta Leo
88 Leo
+14°00'
NGC 3996 NGC 3996
h3335
NGC 3872 NGC 3872
+13°00'
h2583
IC 2945
IC 736
NGC 3731
NGC 3773
NGC 3968
NGC 3968
h191
+12°00'
h1201
STF 1556
NGC 3773
+11°00'
NGC 3810 NGC 3810
Jonckheere 3234
NGC 3869
NGC 3839
Leo
NGC 3822
NGC 3825
NGC 3817
NGC 3833
h185
Barton 1276
12h 00m
11h 55m
11h 50m
11h 45m
11h 40m
11h 35m
11h 30m
Zone 165, Map 3
Mirror Image
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
Denebola
88 Leo
NGC 3996
NGC 3996
h3335
NGC 3872
NGC 3872
h2583
+14°00'
Beta Leoβ
Coma Berenices
Virgo
IC 2945
+13°00'
h4469
IC 736
NGC 3731
+12°00'
h1201
STF 1556 NGC 3773 NGC 3773
h191
NGC 3968
NGC 3968
h2572
Jonckheere 3234
+11°00'
NGC 3810 NGC 3810
NGC 3839NGC 3869
Leo
NGC 3822
NGC 3825
NGC 3817
NGC 3833
NGC 4012
h185
11h 30m
11h 35m
11h 40m
Barton 1276
11h 45m
11h 50m
11h 55m
12h 00m
Zone 165, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+10°00'
NGC 3825
NGC 3817
NGC 3833
h185
Barton 1276
STF 3077 rej
NGC 3876
STF 1571
NGC 3705
IC 698
NGC 3876
IC 724
STF 1575
IC 719
IC 719
IC 718
+09°00'
A 2576
IC 720
NGC 3863
+08°00'
ξ
4 Vir
ω
STF 3075
+07°00'
Jonckheere 1016
NGC 3976 NGC 3976
NGC 3914
+06°00'
ν
h2580
h2591
h1193
12h 00m
11h 55m
11h 50m
11h 45m
11h 40m
11h 35m
11h 30m
Zone 165, Map 4
Mirror Image
NGC 3825
NGC 3817
NGC 3833
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 4012
h185
Barton 1276
A 2576
NGC 3876NGC 3876
STF 1571
IC 719 IC 719
IC 724
IC 718
IC 720
+09°00'
NGC 3705
STF 1575
ξ
4 Vir
ω
NGC 4029
+08°00'
NGC 3863
STF 3075
+07°00'
Jonckheere 1016
NGC 3976 NGC 3976
NGC 3914
h2580
h2591
+06°00'
ν
h1193
11h 30m
11h 35m
11h 40m
11h 45m
11h 50m
11h 55m
12h 00m
Zone 165
2 Reference Stars, 41 Double Stars, 20 Galaxies
Flamsteed
J
4 Vir ..................................................... 31
59 Leo .................................................. 21
88 Leo .................................................. 24
Jonckheere 3234 .................................. 25
K
Kuiper 56 ............................................. 22
A
N
A 2576 ................................................. 33
NGC 3485 ............................................ 12
NGC 3489 .............................................. 9
NGC 3506 ............................................ 14
NGC 3524 ............................................ 12
NGC 3547 ............................................ 11
NGC 3593 ............................................ 14
NGC 3596 ............................................ 15
NGC 3623 ............................................ 10
NGC 3627 .............................................. 8
NGC 3628 ............................................ 12
NGC 3666 ............................................ 13
NGC 3705 ............................................ 33
NGC 3773 ............................................ 27
NGC 3810 ............................................ 26
NGC 3872 ............................................ 27
NGC 3876 ............................................ 34
NGC 3968 ............................................ 28
NGC 3976 ............................................ 35
NGC 3996 ............................................ 28
B
Barton 1276 ......................................... 30
Beta Leo............................................... 23
C
Chi Leo ................................................ 19
H
h1201 ................................................... 25
h172 ..................................................... 16
h174 ....................................................... 6
h180 ....................................................... 4
h185 ..................................................... 31
h2553 ................................................... 17
h2565 ................................................... 19
h2572 ..................................................... 5
h2580 ................................................... 32
h2583 ................................................... 23
h2591 ................................................... 32
h4469 ................................................... 24
h839 ..................................................... 20
Heintz 360.............................................. 5
S
Sigma Leo ............................................ 16
STF 1502................................................ 3
STF 1503.............................................. 17
STF 1507.............................................. 18
STF 1511................................................ 4
STF 1518.............................................. 18
I
IC 719 .................................................. 34
Iota Leo.................................................. 7
-1-
Zone 165
STF 1527 ............................................... 6
STF 1528 rej ........................................ 20
STF 1571 ............................................. 30
STF 1575.............................................. 29
STF 3075.............................................. 29
STF 3077 rej ........................................ 30
-2-
Zone 165
Zone 165, Map 1
Double Stars
Easy
STF 1502
Rating: 4 E
ADS 8022; HD 95577; SAO 99408
Position: 1102+1437
A
B
Magnitude
9.35
10.24
Separation PA
—
—
12.9 +
284 -
Year
—
1962
Spectra
G0
Colors
bW
W
Notes:
1828: 12.4 @ 285. 14 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. The distance to the primary is about 119
light years, making it only 30% as bright as the Sun. The secondary is 40 light years
away. However, the stars show similar proper motion.
Observations:
C8 at 163x. I made five pairs of separation and PA measures using the Micro-Guide
and got an average of 14" at 286 PA. This pair appears to be widening at an appreciable
rate and should make interesting study for the next 30 or 40 years. My PA reading could
be off by a couple of degrees as the companion was at the threshhold of visibility with the
reticule LED turned on.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 18.3 inches.
Separation: AB = 2.39 miles.
Distance (LY): 119
Total luminosity (Suns): 0.3
-3-
Zone 165
h180
Rating: 4 E
HD 99087; SAO 99590
Position: 1124+1410
A
B
Magnitude
8.85
11.66
Separation PA
—
—
27.2
32
Year
—
1906
Spectra
G5
Colors
Y
W
Notes:
1 measurement.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.4 inches.
Separation: AB = 25.9 miles.
Distance (LY): 610
Total luminosity (Suns): 9.1
STF 1511
Rating: 5 E
ADS 8061; HD 96478; SAO 99453
Position: 1107+1055
A
B
Magnitude
8.58
8.82
Separation PA
—
—
7.7 +
287 +
Year
—
1991
Spectra
K0
Colors
pO
pB
Notes:
1829: 7.6 @ 286. 29 measurements. The stars share common proper motion.
Observations:
C8 at 163x. Lovely pair, very even. Microguide measures showed 7.2" at 286.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 25.2 inches.
Separation: AB = 3.42 miles.
Distance (LY): 285
Total luminosity (Suns): 4.6
-4-
Zone 165
h2572
Position: 1130+1138
A
B
Magnitude
10.30
11.48
Rating: 5 E
Separation PA
—
—
37.8 +
176 -
Year
—
1961
Spectra
F8
Colors
W
W?
Notes:
1880: 36.4 @ 183. 7 measurements.
Observations:
C11 at 115x. An 11m star lies 90" away at PA 10.
Moderate
Heintz 360
Position: 1100+1248
A
B
Magnitude
10.41
11.50
Rating: 5 M
Separation PA
—
—
3.8 +
102 -
Year
—
1999
Spectra
G5
Colors
W
W
Notes:
1985: 3.4 @ 103. 2 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 22.1 inches.
Separation: AB = 3,221 feet.
Distance (LY): 104
Total luminosity (Suns): 0.079
-5-
Zone 165
Difficult
h174
Rating: 5 D
HD 96003; SAO 99428
Position: 1105+1240
A
B
a
Magnitude
6.87
12.37
7.70
Separation
—
60.3 2.2
PA
—
039
Year
—
1991
1989
Spectra
A3p
Colors
W
W
No
Notes:
AB 1905: 61.2 @ 1. 4 measurements.
Aa 1 measurement.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.85 inches.
Separation: AB = 44.2 miles; Aa = 1.61 miles.
Distance (LY): 470
Total luminosity (Suns): 30.19
STF 1527
Rating: 5 D
ADS 8128; HD 98354; SAO 99551
Position: 1119+1416
A
B
Magnitude
7.02
8.07
Separation PA
—
—
0.5 67 +
Year
—
1999
Spectra
F9 V
Colors
Y
G
Notes:
1822: 3.7 @ 10. Over 100 measurements. The orbital period is probably about 1148
years (Hopmann, 1960). Both stars are spectroscopic binaries.
Protection for 2020: 0.4 @ 115.
Observations:
C8 at 206x. Elongated. Webb saw them as W and B.
-6-
Zone 165
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 31.5 inches.
Separation: AB = 422 feet.
Distance (LY): 105
Total luminosity (Suns): 2.5
Iota Leo
78 Leo; STF 1536; ADS 8148; HD 99028; SAO 99587
Position: 1124+1032
A
B
C
Magnitude
4.08
6.82
10.70
Separation
—
1.6 332.0
PA
—
112 +
346
Year
—
1999
1978
Rating: 5 D
Spectra
F2 IV
G3 V
Colors
W
W
No
Notes:
The orbital period may be 183.4 years (Heintz, 1985) or 192 years (Baize, 1980).
Star A is a spectroscopic binary and may be a Delta Scuti variable. It is also an infrared source.
The combined A-a mass is 3 solar masses.
The group is a member of the Ursa Major moving stream.
AB 1828: 2.1 @ 95. Over 100 measurements.
1970- 1.1 @ 178
1980- 1.3 @ 152
1990- 1.5 @ 131
2000- 1.7 @ 117
2010- 2.0 @ 105 (projected)
AC 1 measurement.
Observations:
C8 at 697x. A peanut with PA of about 110. Webb saw them as Y and B.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.10 inches; B = 17.0 inches.
Separation: AB = 1,003 feet; AC = 40.9 miles.
Distance (LY): 79
Total luminosity (Suns): 13.42
-7-
Zone 165
Deep Sky Objects
Easy
NGC 3627
Other Names: UGC 6346, M66
Astronomical Leage Program: Messier Club
Rating: 2 E
Position: 1120+1259
Type: Gal
Surface brightness: 12.5
Class: SAB(s)b
Dimensions: 8' x 3'
Magnitude: 9.7
PA: 173
Notes:
It was discovered by P. Mechain on March 1, 1780. (Messier's comet of 1773 passed
right through the field on 11/2/73, but he missed the galaxy!)
It is 51,000 light years in diameter.
It is a Leo Group member.
M66 is considerably larger than its neighbor, M65, and has a well developed but not
well defined central bulge, and is therefore classified Sb. Obviously its spiral arms are
deformed, probably because of the encounters with its neighbors. They seem to be
distorted and displaced above the plane of the galaxy. Note how one of the spiral arms
seems to pass over the left side of the central bulge. Much dust is visible here, as well as
a few pink nebulae, signs of star formation, near the end of one of the arms.
Together with its neighbor, M65, M66 has been discovered by Charles Messier, who
cataloged it on March 1, 1780, remarks that he missed these two objects in 1773, when a
comet passed between them on November 1 to 2, 1773, probably because of the light of
the comet. Because of a dubious error, Admiral Smyth has assigned this discovery of
M65 and M66 (and M68) to Pierre Méchain, a view which was adopted by Kenneth Glyn
Jones somewhen in the 1960s, and consequently, in many modern sources, despite the
fact that Messier doesn't acknowledge such a prior sighting, which he did in all other
cases.
Three supernovae have appeared in this galaxy:
 1973R which was of type II and reached mag 15 was found on Dec 12, 1973.
 1989B was discovered on Jan 31, 1989 and became as bright as mag 12.2 on Feb
1, 1989.
 1997bs was discovered by the Lick Observatory Supernova Search Team as it
occurred on April 15, 1997 at 13" west, 67" south of the galaxy's center and
reached mag 17.0; this was of peculiar type IIn.
-8-
Zone 165
Halton Arp has included M66 in his Catalogue of Peculiar Galaxies as entry No. 16.
Moreover, he assigned the number 317 to the Leo Triplett (M66 together with M65 and
NGC 3628).
[Source: http://www.seds.org/messier/m/m066.html]
Observations:
C8 at 47x. Bright; at high powers, you
can pick up a dust lane just E of the
nucleus. It shows a N-S axis. A trio of
9m stars nearby is hard on seeing.
Model (where the Sun is a baseball):
Its diameter would be 23 million miles.
Distance (LY): 31,000,000
Luminosity (suns): 10,000,000,000
Radial velocity (km/sec): +633
NGC 3627 (M66)
Galaxy (SAB(s)b II)
Observed with C8 on 3/26/92
Magnification: 80x
NGC 3489
Other Names: UGC 6082; H II 101
Astronomical League Program: Herschel 400 Club
Rating: 3 E
Position: 1100+1354
Type: Gal
Surface brightness: 12.2
Class: SAB(rs)0+
Dimensions: 2' x 1'
Magnitude: 11.3
PA: 70
Notes:
Leo Group member.
Observations:
C8 at 83x. Bright, with stellar core and E-W halo. The galaxy is easy to mistake for a
star, so I advise using high powers to verify it. A 12m star is the in W end.
-9-
Zone 165
Distance (LY): 25,000,000
Radial velocity (km/sec): +677
Total luminosity (Suns): 1,500,000,000
NGC 3623
Other Names: Arp 317, M65
Astronomical Leage Program: Messier Club
Rating: 3 E
Position: 1119+1305
Type: Gal
Surface brightness: 12.4
Class: SAB(rs)a
Dimensions: 8' x 2'
Magnitude: 10.2
PA: 174
Notes:
P. Mechain discovered it on March 1, 1780.
It is 80,000 light years in diameter and is a radio source and a Seyfert galaxy.
Leo Group member.
M65, together with its neighbors M66 and NGC 3628, forms a most conspicuous
triplet of galaxies, the Leo Triplett or M66 group, located at a distance of about 35
million light years.
Although it is close to and thus under the gravitational influence of its neighbors, M65
looks like a very "normal" Sa type spiral and seems to have felt little influence. It has a
prominent central lense and tightly wound spiral arms, plus a prominent dust lane
marking the facing edge. The luminous disk is dominated by a smooth old stellar
population. Near the lane, some knots are visible, which, according to J.D. Wray, may be
associated with star forming regions. The lane may hide regions of star formation usually
associated with such features in spiral galaxies.
M65, together with its neighbor, M66, has been discovered by Charles Messier, who
cataloged it on March 1, 1780, describes it as "very faint nebula without stars." Because
of a dubious error, Admiral Smyth has assigned this discovery of M65 and M66 (and
M68) to Pierre Méchain, a view which was adopted by Kenneth Glyn Jones somewhen in
the 1960s, and consequently, in many sources, despite the fact that Messier doesn't
acknowledge such a prior sighting, which he did in all other cases.
Halton Arp includes M65 in his entry number 317 of his Catalogue of Peculiar
Galaxies, which denotes the Leo Triplett.
[Source: http://www.seds.org/messier/m/m065.html]
Observations:
C8 at 47x. Easy! M66 shares the field. It has high surface brightness, a bright center,
and obvious halo; it even offers a dust lane at high powers. It is oriented N-S.
- 10 -
Zone 165
Model (where the Sun is a baseball):
Its diameter would be 26 million miles.
Distance (LY): 35,000,000
Radial velocity (km/sec): +588
Luminosity (suns): 8,000,000,000
NGC 3623 (M65)
Galaxy (Sb)
Observed with C8 on 3/26/92
Magnification: 80x
Moderate
NGC 3547
Other Names: H II 42; UGC 6209
Astronomical League Program: Herschel II Club
Rating: 3 M
Position: 1110+1043
Type: Gal
Surface brightness: 13.1
Class: Sb: II-IV
Dimensions: 2.1' x 0.9'
Magnitude: 12.8
PA: 7
Observations:
C8 at 206x. Very bright nucleus with a small halo. Easy object. An 11m star 3 min
W forms a nice equilateral triangle with it an a 9m star 3 min SW. Moderate field.
Radial velocity (km/sec): +1,614
- 11 -
Zone 165
NGC 3485
Other Names: UGC 6077; H II 100
Rating: 4 M
Position: 1100+1450
Type: Gal
Surface brightness: 13.4
Class: SB(r)b: II
Dimensions: 2.6' x 2.4'
Magnitude: 11.8
Observations:
C8 at 104x. Small bright nucleus with very small halo. Three 9m-10m stars lie just S
of it, and a lovely N-S cascade of six stars (9m - 10m) lies 20 min E. Moderate field.
Distance (LY): 59,000,000
Radial velocity (km/sec): +1,434
Total luminosity (Suns): 5,200,000,000
NGC 3524
Other Names: H III 23; UGC 6158
Astronomical League Program: Herschel II Club
Rating: 4 M
Position: 1107+1124
Type: Gal
Surface brightness: 12.4
Class: S0
Dimensions: 1.7' x 0.5'
Magnitude: 12.8
PA: 14
Observations:
C8 at 104x. It looks like a small, fuzzy disk 2 min N of a 12m star. No details to be
seen.
Radial velocity (km/sec): +1,369
NGC 3628
Other Names: UGC 6350; H V 8
Astronomical League Program: Herschel 400 Club
Rating: 5 M
Position: 1120+1336
Type: Gal
Surface brightness: 13.7
Class: Sb pec sp
Dimensions: 12' x 2'
- 12 -
Magnitude: 10.3
PA: 104
Zone 165
Notes:
This galaxy is a radio source and Leo Group member.
Discovered by William Herschel in 1784.
NGC 3628 forms a conspicuous group with M65 and M66, the Leo Triplet or M66
group (named after the brightest of the three).
NGC 3628 is the faintest and most difficult in the group, just faint enough to have
escaped Messier's small telescopes (although it may be that his later instruments might
have shown it, if he had ever looked at this place under very good conditions). Thus its
discovery was left to William Herschel.
NGC 3628 is seen edge-on. A conspicuous band of dark dust clouds form a broad
equatorial band, which obscures the galaxy's bright central region, and hides most of the
bright young stars in its spiral arms. The dust band, or belt, is obviously distorted and
deformed in the outer regions of the galaxy. The reason for this deformation is evidently
the gravitational interaction with its two bright neighbors, M65 and M66.
[Source; http://www.seds.org/messier/xtra/ngc/n3628.html]
Observations:
C8 at 83x. Large and faint, a dust band is barely discernible at higher powers. It runs
E to W. It is framed by three faint stars. It lies about 35 min N of M65.
Model (where the Sun is a baseball):
Its diameter would be 39 million miles.
Distance (LY): 35,000,000
Radial velocity (km/sec): +728
Luminosity (suns): 7,300,000,000
Difficult
NGC 3666
Other Names: UGC 6420
Astronomical League Program: Herschel II Club
Rating: 4 D
Position: 1124+1121
Type: Gal
Surface brightness: 13.5
Class: SA(rs)c:
Dimensions: 4.1' x 1.1'
Magnitude: 12.0
PA: 100
Observations:
C11 at 193x. The glare of a nearby 6m star is very bad. The galaxy is faint, and
gradually brightens to a diffuse center.
- 13 -
Zone 165
Distance (LY): 41,000,000
Radial velocity (km/sec): +947
Total luminosity (Suns): 2,100,000,000
NGC 3506
Other Names: H III 22
Rating: 5 D
Position: 1103+1105
Type: Gal
Surface brightness: 12.7
Class: Sc: I-II
Dimensions: 1.3' x 1.3'
Magnitude: 12.5
Notes:
This galaxy produced SN 2003L (type Ic), detected on January 12.
Observations:
C8 at 104x. Small bright nucleus, no halo.
Radial velocity (km/sec): +6,403
NGC 3593
Other Names: UGC 6272; H I 29
Astronomical League Program: Herschel 400 Club
Rating: 5 D
Position: 1115+1249
Type: Gal
Surface brightness: 13.4
Class: SA(s)0/a:
Dimensions: 3' x 1'
Magnitude: 12.0
PA: 92
Notes:
Leo Group member.
Observations:
C8 at 83x. Very faint, with an E-W axis and starlike nucleus. It lies 30 min SW of 73
Leo.
Distance (LY): 24,000,000
Radial velocity (km/sec): +427
Total luminosity (Suns): 800,000,000
- 14 -
Zone 165
NGC 3596
Other Names: UGC 6277; H II 102
Astronomical League Program: Herschel II Club
Rating: 5 D
Position: 1115+1447
Type: Gal
Surface brightness: 14.1
Class: SAB(rs)c II-III
Dimensions: 3.6' x 3'
Magnitude: 12.2
Notes:
It is probably a member of the M66 subgroup in Leo.
Observations:
C8 at 83x. Very low surface brightness but sharp nucleus.
Distance (LY): 45,000,000
Radial velocity (km/sec): +1,193
Total luminosity (Suns): 2,100,000,000
- 15 -
Zone 165
Zone 165, Map 2
Reference Star
Sigma Leo (77 Leo; HD 98664; SAO 118804)
Position: 1121+0602
Mag : 4.05
Assumed distance: 214 light years
Spectrum : B9.5 V
Color : bW
Assumed luminosity (suns): 83
Notes:
Star A is a spectroscopic binary.
Double Stars
Easy
h172
Position: 1102+0945
A
B
Magnitude
10.19
10.34
Rating: 3 E
Separation PA
—
—
13.3 +
94 +
Year
—
1991
Spectra
K5
Colors
O
Y
Notes:
1910: 13.2 @ 93. 12 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 38.8 inches.
Separation: AB = 2,376 feet.
Distance (LY): 22
Total luminosity (Suns): 0.006
- 16 -
Zone 165
h2553
Position: 1102+0725
A
B
Magnitude
10.61
12.11
Rating: 4 E
Separation PA
—
—
16.3 265 +
Year
—
1919
Spectra
F2
Colors
W
Y
Notes:
1894: 51.9 @ 278. 7 measurements.
Observations:
C11 at 115x.
STF 1503
AM Leo; ADS 8024; SAO 99413
Position: 1102+0954
A
B
Magnitude
9.25
10.61
Rating: 4 E
Separation PA
—
—
11.4 +
270 =
Year
—
1994
Spectra
F8 Vn
G0
Colors
O
bW
Notes:
1828: 11.3 @ 270. 35 measurements. The primary is a W UMa binary. The stars
share common proper motion.
Observations:
C8 at 104x and MicroGuide (160x), on 1/13/00 UT. I made five pairs of separation
and PA measures using the MicroGuide and got an average of 15" in PA 274. This
seems to be a major difference from the 1972 measurements, which are essentially the
same as the 1828 measurements, so I double-checked the N-S and E-W orientation of the
PA scale and reconfirmed 15" at 274. This pair was difficult to measure since at 10.6
mag, the stars are almost washed out by the lowest LED setting on the MicroGuide.
Tonight, the companion looked brighter than the primary, which is also listed as AM Leo,
an eclipsing variable (like Algol) of the W UMa type. It varies by 0.7 magnitudes over a
period of 0.36579720 days (8.78 hours), so I may have caught this pair during a
minimum. Had it been a little warmer and less breezy, I might have gone back to this
pair two or three hours later and looked at the magnitude of A, but not tonight!
Note the nice doublet 12 min S.
- 17 -
Zone 165
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.60 inches; B = 19.5 inches.
Separation: AB = 4.44 miles.
Distance (LY): 250
Total luminosity (Suns): 1.2
STF 1507
Rating: 4 E
ADS 8054; HD 96273; SAO 118656
Position: 1106+0702
A
B
Magnitude
8.47
10.05
Separation PA
—
—
8.3 +
165 =
Year
—
1991
Spectra
F8
Colors
Y
?
Notes:
1833: 8.0 @ 165. 19 measurements. The stars show similar proper motions.
Observations:
C8 at 163x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.4 inches.
Separation: AB = 4.96 miles.
Distance (LY): 383
Total luminosity (Suns): 5.5
STF 1518
Jonckheere 1012; ADS 8098; HD 97676; SAO 118741
Position: 1114+0516
A
B
C
BC
Magnitude
8.14
11.26
10.80
Separation PA
—
—
106.3 +
258 +
3.4 =
353 +
Notes:
AB 1901: 103.5 @ 256. 7 measurements.
BC 1901: 3.4 @ 352. 13 measurements.
- 18 -
Year
—
1991
1940
Rating: 4 E
Spectra
K0
Colors
Y
?
?
Zone 165
Observations:
C8 at 697x. The wide pair was too easy. The close pair (Bb) was a killer, and
required averted vision to see b.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.5 inches.
Separation: AB = 184 miles; BC = 5.89 miles.
Distance (LY): 1,110
Total luminosity (Suns): 106
h2565
Position: 1117+0736
A
B
Magnitude
10.06
11.86
Rating: 4 E
Separation PA
—
—
14.5
8
Year
—
1905
Spectra
Colors
O
W
Notes:
1 measurement.
Observations:
C11 at 115x.
Chi Leo
Rating: 5 E
63 Leo; OS 572; Kuiper 54 (B); Dick 2 (D); HD 96097; SAO 118648
Position: 1105+0720
A
B
C
D
Magnitude
4.63
11.00
10.60
11.53
Separation
—
3.7 +
276 314.1
PA
—
268 +
305 +
294
Notes:
AB 1939: 2.6 @ 257. 9 measurements.
AC 1882: 288 @ 303. 7 measurements.
AD 1 measurement.
Observations:
C8 at 104x. AC too wide! B not noted.
- 19 -
Year
—
1979
1924
1924
Spectra
F2 III-IVv
Colors
W
No
W
No
Zone 165
C8 at 708x, with diffraction mask. B noted during brief moments of good seeing.
C11 at 115x. B was not detected.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 24.9 inches.
Separation: AB = 2,851 feet; AC = 40.5 miles; AD = 46.1 miles.
Distance (LY): 94
Total luminosity (Suns): 9.9
Moderate
h839
Rating: 5 M
ADS 8068; HD 96658; SAO 118678
Position: 1108+0634
A
B
C
Magnitude
8.35
11.39
14.02
Separation
—
12.2 31.9
PA
—
96 =
352
Year
—
1991
1907
Spectra
F8
Colors
yW
O
?
Notes:
AB 1897: 12.4 @ 96. 8 measurements.
AC 1 measurement.
Observations:
C8 at 104x. Very faint.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.3 inches.
Separation: AB = 5.29 miles; AC = 13.8 miles.
Distance (LY): 278
Total luminosity (Suns): 2.88
STF 1528 rej
Rating: 5 M
HD 98437; SAO 99556
Position: 1120+0956
A
B
Magnitude
8.85
12.29
Separation PA
—
—
19.5 +
217 =
- 20 -
Year
—
1925
Spectra
A3
Colors
W
?
Zone 165
Notes:
1903: 19.1 @ 217. 4 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.77 inches.
Separation: AB = 36.8 miles.
Distance (LY): 1,210
Total luminosity (Suns): 34
Difficult
59 Leo
Bur 598; ADS 8019; HD 95382; SAO 118615
Position: 1101+0605
A
B
Magnitude
4.98
12.60
Separation PA
—
—
44.8 220 -
Rating: 4 D
Year
—
1919
Spectra
A5 III
Colors
W
W
Notes:
1878: 46.8 @ 221. 6 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 7.80 inches.
Separation: AB = 10.6 miles.
Distance (LY): 151
Total luminosity (Suns): 16.416
- 21 -
Zone 165
Kuiper 56
Rating: 5 D
HD 97605; SAO 118735
Position: 1114+0804
A
B
Magnitude
5.79
11.15
Separation PA
—
—
22.2 +
249 +
Year
—
1986
Spectra
K3 III
Colors
yO
?
Notes:
1958: 21.3 @ 240. 3 measurements.
This star is a member of the Wolf 630 group.
Observations:
C8 at 83x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 51.3 inches.
Separation: AB = 7.72 miles.
Distance (LY): 223
Total luminosity (Suns): 18.9
- 22 -
Zone 165
Zone 165, Map 3
Reference Star
Beta Leo (94 Leo; Denebola; Bur 604; HD 102647; SAO 99809)
Position: 1149+1434
Mag : 2.14
Spectrum : A3 V Color : W
Assumed distance: 108 light years
Assumed luminosity (suns): 132
Notes:
1914: 264.0 @ 203. 2 measurements.
The primary rotates at 121 kps and may be a Delta Scuti variable. It is also an infrared source.
Its angular diameter has been determined to be 0.0013".
From James Kaler's Star Notes:
Denebola is a classic white star of temperature 8,500 degrees Kelvin, and is similar to
summer's first magnitude Altair. It is one of a fairly rare "Vega" class of stars that is
surrounded by a veil of infrared-emitting dust. Since the planets of our Solar System were
apparently created from a circumstellar dusty cloud, such dust implies the possibility that
Denebola might have planets as well, though there is no direct evidence for them.
Denebola is also a subtle variable star of the "Delta Scuti" type. Such stars vary in
brightness by small amounts over periods of only hours. The star shows no evidence for
any kind of stellar companion.
Double Stars
Easy
h2583
Rating: 3 E
SAO 99757
Position: 1144+1331
A
B
Magnitude
9.57
9.67
Separation PA
—
—
32.8 +
61 +
Notes:
1880: 30.2 @ 56. 15 measurements.
- 23 -
Year
—
1991
Spectra
G5
Colors
bW
pO
Zone 165
The stars have different proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 21.2 inches.
Separation: AB = 9.77 miles.
Distance (LY): 191
Total luminosity (Suns): 0.8
h4469
Rating: 5 E
ADS B5897
Position: 1144+1436
A
B
Magnitude
9.75
10.60
Separation PA
—
—
28.7 +
170 +
Year
—
1991
Spectra
G5
Colors
yW
?
Notes:
1899: 28.5 @ 164. 7 measurements.
The stars share common proper motion.
Observations:
C8 at 104x.
Moderate
88 Leo
STF 1547; ADS 8196; HD 100180; SAO 99648
Position: 1132+1421
A
B
Magnitude
6.27
9.05
Separation PA
—
—
15.9 +
330 +
Rating: 3 M
Year
—
1997
Spectra
F7 IV
K6 V
Colors
W
B
Notes:
1822: 15.0 @ 318. 71 measurements. The stars share a very large common proper
motion. The orbital period is 5,500 years and the orbit is nearly circular.
- 24 -
Zone 165
Observations:
C8 at 83x. Webb saw them as Y and B. Franks saw Y and L.
Jonckheere 3234
Rating: 5 M
HD 102066; SAO 99765
Position: 1145+1123
A
B
Magnitude
8.86
11.61
Separation PA
—
—
9.0 +
286 +
Year
—
1991
Spectra
G5
Colors
Y
?
Notes:
1907: 8.6 @ 284. 11 measurements.
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.4 inches.
Separation: AB = 5.39 miles.
Distance (LY): 384
Total luminosity (Suns): 3.57
Difficult
h1201
See; ADS 8320; HD 102910; SAO 99827
Position: 1151+1217
A
B
Magnitude
6.37
11.20
Rating: 5 D
Separation PA
—
—
14.7 191 =
Notes:
1877: 14.9 @ 191. 8 measurements.
This star is a member of the Hyades group.
- 25 -
Year
—
1934
Spectra
A3m
Colors
W
?
Zone 165
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.60 inches.
Separation: AB = 4.12 miles.
Distance (LY): 180
Total luminosity (Suns): 7.1
Deep Sky Objects
Moderate
NGC 3810
Other Names: UGC 6644; H I 21
Astronomical League Program: Herschel 400 Club
Rating: 5 M
Position: 1141+1128
Type: Gal
Surface brightness: 13.1
Class: SA(rs)c I-II
Dimensions: 4' x 3'
Magnitude: 11.5
PA: 15
Notes:
Leo Group member.
This galaxy produced supernova 1997dq (type Ib) and 2000ew (type Ic).
Observations:
C8 at 83x. It has very low surface brightness but a bright nucleus, and is oriented N
to S. A small triangle of faint stars lies to the S.
Distance (LY): 38,000,000
Radial velocity (km/sec): +993
Total luminosity (Suns): 2,900,000,000
- 26 -
Zone 165
Difficult
NGC 3872
Other Names: UGC 6738; H II 104
Rating: 4 D
Position: 1146+1346
Type: Gal
Surface brightness: 13.1
Class: E4
Dimensions: 2' x 1.5'
Magnitude: 11.7
Observations:
C8 at 104x. It has a faint halo with a stronger nucleus. It forms a triangle with two
9.5m stars to the E and S.
C11 at 115x. Very faint patch; uniform in appearance, no detectable nucleus.
Distance (LY): 130,000,000
Radial velocity (km/sec): +3,186
Total luminosity (Suns): 27,700,000,000
NGC 3773
Other Names: H III 81; UGC 6605
Rating: 5 D
Position: 1138+1207
Type: Gal
Surface brightness: 12.3
Class: SA0:
Dimensions: 1.4' x 1.1'
Magnitude: 12.0
PA: 165
Observations:
C8 at 104x. With tube movement and averted vision, I picked up a small, faint disk.
No sharp nucleus. A 10m star lies about 6 min SE.
Model (where the Sun is a baseball):
Its diameter would be 7 million miles.
Distance (LY): 55,000,000
Radial velocity (km/sec): +987
Luminosity (suns): 3,800,000,000
- 27 -
Zone 165
NGC 3968
Other Names: UGC 6895; H II 162
Rating: 5 D
Position: 1156+1158
Type: Gal
Surface brightness: 13.4
Class: SAB(rs)bc
Dimensions: 2.7' x 1.9'
Magnitude: 11.8
PA: 10
Observations:
C11 at 140x. WIth three field stars (11m, 12m, 13m), it forms a rectangle. Very
small, very faint, and no nucleus.
Distance (LY): 270,000,000
Radial velocity (km/sec): +6,388
Total luminosity (Suns): 108,800,000,000
NGC 3996
Other Names: UGC 6941
Rating: 5 D
Position: 1158+1418
Type: Gal
Surface brightness: 12.8
Class: Sc
Dimensions: 54" x 42"
Magnitude: 13.4
PA: 50
Observations:
C11 at 140x. Very small ball, but no nucleus. It is bracketed by two stars (12m,
13m).
Radial velocity (km/sec): +7,002
- 28 -
Zone 165
Zone 165, Map 4
Double Stars
Easy
STF 1575
Rating: 2 E
ADS 8327; HD 103047; SAO 119084
Position: 1152+0850
A
B
Magnitude
7.40
7.93
Separation PA
—
—
30.6 +
210 +
Year
—
1998
Spectra
K0
K0 III
Colors
O
W
Notes:
1821: 30.2 @ 208. 40 measurements. The stars share common proper motion.
Observations:
C8 at 65x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.4 inches; B = 24.2 inches.
Separation: AB = 14.5 miles.
Distance (LY): 303
Total luminosity (Suns): 13
STF 3075
Position: 1152+0733
A
B
Magnitude
9.61
9.80
Rating: 3 E
Separation PA
—
—
18.1 +
183 -?
Year
—
1961
Notes:
1831: 17.7 @ 5. 18 measurements. Quadrant reversal?
- 29 -
Spectra
K5
Colors
Zone 165
Barton 1276
Position: 1155+0944
A
B
Magnitude
10.33
10.90
Rating: 3 E
Separation PA
—
—
2.9 +
359 +
Year
—
1999
Spectra
G0
Colors
Y
W
Notes:
1934: 2.8 @ 357. 4 measurements.
Observations:
C11 at 115x!
STF 3077 rej
Rating: 3 E
ADS 8373
Position: 1159+0909
A
B
Magnitude
10.34
12.50
Separation PA
—
—
9.4 +
46 -
Year
—
1928
Spectra
Colors
yO
W
Notes:
1904: 8.6 @ 47. 4 measurements.
Observations:
C11 at 115x.
Distance (LY): 580
Total luminosity (Suns): 2.19
STF 1571
Rating: 4 E
ADS 8298; SAO 119042
Position: 1146+0904
A
B
Magnitude
9.64
11.27
Separation PA
—
—
9.6 +
299 +
Notes:
1829: 9.4 @ 297. 15 measurements.
- 30 -
Year
—
1991
Spectra
F8
Colors
W
Y?
Zone 165
Observations:
C11 at 115x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.4 inches.
Separation: AB = =7.94 miles.
Distance (LY): 530
Total luminosity (Suns): 3.85
4 Vir
Sh 131; HD 102510; SAO 119058
Position: 1148+0814
A
B
Magnitude
5.32
12.00
Rating: 4 E
Separation PA
—
—
150.2 357 +
Year
—
1960
Spectra
A0
Colors
W!
W
Notes:
1899: 154.5 @ 356. 5 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 5.00 inches.
Separation: AB = 45.0 miles.
Distance (LY): 192
Total luminosity (Suns): 24.25
h185
Position: 1140+0945
A
B
Magnitude
10.88
12.27
Rating: 5 E
Separation PA
—
—
25.0
35
Notes:
1 measurement.
- 31 -
Year
—
1820
Spectra
Colors
W
?
Zone 165
Observations:
C11 at 115x.
h2580
Rating: 5 E
ADS B5863; SAO 118973
Position: 1140+0610
A
B
Magnitude
9.94
10.85
Separation PA
—
—
26.8 169 -
Year
—
1991
Spectra
F8
Colors
W
?
Notes:
1903: 26.9 @ 170. 6 measurements.
The stars share common proper motion.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 16.7 inches.
Separation: AB = 14.2 miles.
Distance (LY): 340
Total luminosity (Suns): 1.39
h2591
Rating: 5 E
HD 103546; SAO 119117
Position: 1155+0549
A
B
Magnitude
8.97
13.68
Separation PA
—
—
42.3
162
Notes:
1 measurement.
Observations:
C8 at 104x.
- 32 -
Year
—
1904
Spectra
F2
Colors
W
W
Zone 165
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.4 inches.
Separation: AB = 29.7 miles.
Distance (LY): 450
Total luminosity (Suns): 4.05
Difficult
A 2576
Jonckheere 428 (D); ADS 8211; HD 100361; SAO 118914
Position: 1133+0938
A
B
C
D
Magnitude
9.41
11.90
11.05
13.00
Separation
—
0.6 +
31.8 3.6 -
PA
—
250 +!
239 +
261 +
Year
—
1988
1956
1956
Rating: 5 D
Spectra
G5
Colors
W
No
?
No
Notes:
AB 1913: 0.5 @ 201. 9 measurements.
AC 1913: 32.2 @ 237. 3 measurements.
AD 1911: 4.1 @ 258. 6 measurements.
Observations:
C11 at 98x.
Deep Sky Objects
Moderate
NGC 3705
Other Names: UGC 6498; H II 13
Astronomical League Program: Herschel II Club
Rating: 5 M
Position: 1130+0917
Type: Gal
Surface brightness: 13.3
Class: SAB(r)ab
Dimensions: 4' x 1'
- 33 -
Magnitude: 12.2
PA: 122
Zone 165
Observations:
C8 at 83x. It has low surface brightness but bright center, and its axis runs SE to NW.
A star is nearby. Rich field.
Distance (LY): 39,000,000
Radial velocity (km/sec): +1,018
Total luminosity (Suns): 1,600,000,000
Difficult
IC 719
Other Names: UGC 6633
Rating: 5 D
Position: 1140+0901
Type: Gal
Surface brightness: 12.2
Class: SO
Dimensions: 1.3' x 0.4'
Magnitude: 13.1
PA: 52
Observations:
C11 at 98x with sky glow filter. Very small blip just off the shank of a faint "fish
hook" of stars.
Radial velocity (k/s): +1,860
NGC 3876
Other Names: H III 103; UGC 6730
Rating: 5 D
Position: 1145+0911
Type: Gal
Surface brightness: 12.3
Class: Sab:
Dimensions: 1.1' x 0.7'
Magnitude: 12.8
PA: 105
Observations:
C8 at 104x. A very faint, vague glow with no details seen. Two 8.3m stars lie 10 min
to the W and in a more or less N-S line.
Radial velocity (km/sec): +2,892
- 34 -
Zone 165
NGC 3976
Other Names: H II 132; UGC 6906
Rating: 5 D
Position: 1156+0645
Type: Gal
Surface brightness: 12.6
Class: SAB(s)b
Dimensions: 3.6' x 1.1'
Magnitude: 11.5
PA: 53
Observations:
C8 at 104x. Tube movement and averted vision shows a dim "football" without
discernible details (other than shape).
Distance (LY): 100,000,000
Radial velocity (km/sec): +2,497
Total luminosity (Suns): 19,700,000,000
- 35 -
Zone 165
Zone 165 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
STF 1575
1152+0850
2E
4
h172
1102+0945
3E
2
h2583
1144+1331
3E
3
STF 3075
1152+0733
3E
4
Barton 1276
1155+0944
3E
4
STF 3077 rej
1159+0909
3E
4
STF 1502
1102+1437
4E
1
STF 1503
1102+0954
4E
2
h2553
1102+0725
4E
2
STF 1507
1106+0702
4E
2
STF 1518
1114+0516
4E
2
h2565
1117+0736
4E
2
h180
1124+1410
4E
1
STF 1571
1146+0904
4E
4
4 Vir
1148+0814
4E
4
Chi Leo
1105+0720
5E
2
STF 1511
1107+1055
5E
1
h2572
1130+1138
5E
1
h185
1140+0945
5E
4
h2580
1140+0610
5E
4
h4469
1144+1436
5E
3
h2591
1155+0549
5E
4
Component
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
C
BC
A
B
A
B
A
B
A
B
A
B
C
D
A
B
A
B
A
B
A
B
A
B
A
B
- 36 -
Mag
7.40
7.93
10.19
10.34
9.57
9.67
9.61
9.80
10.33
10.90
10.34
12.50
9.35
10.24
9.25
10.61
10.61
12.11
8.47
10.05
8.14
11.26
10.80
10.06
11.86
8.85
11.66
9.64
11.27
5.32
12.00
4.63
11.00
10.60
11.53
8.58
8.82
10.30
11.48
10.88
12.27
9.94
10.85
9.75
10.60
8.97
13.68
Separation
—
30.6 +
—
13.3 +
—
32.8 +
—
18.1 +
—
2.9 +
—
9.4 +
—
12.9 +
—
11.4 +
—
16.3 —
8.3 +
—
106.3 +
PA
—
210 +
—
94 +
—
61 +
—
183 -?
—
359 +
—
46 —
284 —
270 =
—
265 +
—
165 =
—
258 +
3.4 =
—
14.5
—
27.2
—
9.6 +
—
150.2 —
3.7 +
276 314.1
—
7.7 +
—
37.8 +
—
25.0
—
26.8 —
28.7 +
—
42.3
353 +
—
8
—
32
—
299 +
—
357 +
—
268 +
276 314.1
—
287 +
—
176 —
35
—
169 —
170 +
—
162
Zone 165
Designation
Position
Rating
Map
88 Leo
1132+1421
3M
3
Heintz 360
1100+1248
5M
1
h839
1108+0634
5M
2
STF 1528 rej
Jonckheere
3234
1120+0956
5M
2
1145+1123
5M
3
59 Leo
1101+0605
4D
2
h174
1105+1240
5D
1
Kuiper 56
1114+0804
5D
2
STF 1527
1119+1416
5D
1
Iota Leo
1124+1032
5D
1
A 2576
1133+0938
5D
4
Component
A
B
A
B
A
B
C
A
B
A
B
A
B
A
B
a
A
B
A
B
A
B
C
A
B
C
D
Mag
6.27
9.05
10.41
11.50
8.35
11.39
14.02
8.85
12.29
8.86
11.61
4.98
12.60
6.87
12.37
7.70
5.79
11.15
7.02
8.07
4.08
6.82
10.70
9.41
11.90
11.05
13.00
Separation
—
15.9 +
—
3.8 +
—
12.2 31.9
—
19.5 +
—
9.0 +
—
44.8 —
60.3 2.2
—
22.2 +
—
0.5 —
1.6 332.0
—
0.6 +
31.8 3.6 -
PA
—
330 +
—
102 —
96 =
31.9
—
217 =
—
286 +
—
220 —
039
—
249 +
—
67 +
—
112 +
332.0
—
250 +!
31.8 3.6 -
Deep Space
Object
NGC 3627
NGC 3489
NGC 3623
NGC 3547
NGC 3485
NGC 3524
NGC 3628
NGC 3705
NGC 3810
NGC 3666
NGC 3872
NGC 3506
NGC 3593
NGC 3596
NGC 3773
IC 719
NGC 3876
NGC 3976
NGC 3968
NGC 3996
Position
1120+1259
1100+1354
1119+1305
1110+1043
1100+1450
1107+1124
1120+1336
1130+0917
1141+1128
1124+1121
1146+1346
1103+1105
1115+1249
1115+1447
1138+1207
1140+0901
1145+0911
1156+0645
1156+1158
1158+1418
Rating
2E
3E
3E
3M
4M
4M
5M
5M
5M
4D
4D
5D
5D
5D
5D
5D
5D
5D
5D
5D
Map
1
1
1
1
1
1
1
4
3
1
3
1
1
1
3
4
4
4
3
3
Specifications
Surface
Type
Mag
Br
Gal (SAB(s)b II)
9.7
12.5
Gal (SAB(rs)0+)
11.3
12.2
Gal (Sb)
10.2
12.4
Gal (Sb: II-IV)
12.8
13.1
Gal (SB(r)b: II)
11.8
13.4
Gal (S0)
12.8
12.4
Gal (Sb pec sp III)
10.3
13.7
Gal (SAB(r)ab II)
12.2
13.3
Gal (SA(rs)c I-II)
11.5
13.1
Gal (SA(rs)c: III)
12.0
13.5
Gal (E4)
11.7
13.1
Gal (Sc: I-II)
12.5
12.7
Gal (SA(s)0/a:)
12.0
13.4
Gal (SAB(rs)c II-III)
12.2
14.1
Gal (SA0:)
12.0
12.3
Gal (SO)
13.1
12.2
Gal (Sab:)
12.8
12.3
Gal (SAB(s)b)
11.5
12.6
Gal (SAB(rs)bc)
11.8
13.4
Gal (Sc)
13.4
12.8
- 37 -
Population