Normal View
Zone Master, Normal View, 10 deg FOV
ο2
ο1
π1
+14°00'
π2
+16°00'
Zone 163, Master Map
ψ
c
ν
α
+12°00'
e
ξ
+10°00'
κ
ο
f
π
+08°00'
ω
d
Cancer
+06°00'
Leo
Sextans Hydra
ω
10h 00m
09h 52m
09h 44m
09h 36m
09h 28m
09h 20m
09h 12m
09h 04m
Zone 163, Map 1
Normal Image
STF 1300
STF 1317
π2
π1
81 Cnc
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
+14°00'
h115
+12°00'
+13°00'
STF 1299 rej
IC 530
NGC 2720
NGC 2725
NGC 2728
h122
κ
09h 30m
09h 25m
09h 20m
09h 15m
09h 10m
09h 05m
09h 00m
+11°00'
NGC 2872 NGC 2874
NGC 2874 NGC 2872
Zone 163, Map 1
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1300
π1 81 Cnc
+15°00'
STF 1317
π2
+14°00'
h115
STF 1299 rej
+12°00'
+13°00'
STF 1299 rej
IC 530
Alpha Cnc
NGC 2728
NGC 2874
NGC 2872
+11°00'
NGC 2872
NGC 2874
h122
κ
09h 00m
09h 05m
09h 10m
09h 15m
09h 20m
09h 25m
09h 30m
Zone 163, Map 2
Normal Image
+09°00'
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ω
STF 1319
+08°00'
3 Leo
NGC 2882 NGC 2882
NGC 2731
h808
OS 98
Leo
NGC 2777
NGC 2775
Cancer
+07°00'
A 2976
NGC 2775
+06°00'
STF 1348
STF 1355
h124
ω
STF 1343
09h 30m
09h 25m
09h 20m
09h 15m
09h 10m
09h 05m
09h 00m
Zone 163, Map 2
Mirror Image
+09°00'
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ω
STF 1319
3 Leo
A 2976
h808
NGC 2882
NGC 2882
+08°00'
NGC 2731
NGC 2894
OS 98
NGC 2775 NGC 2775
+07°00'
NGC 2777
Cancer
Leo
STF 1355
+06°00'
STF 1348
h124
ω
09h 00m
09h 05m
STF 1343
09h 10m
09h 15m
09h 20m
09h 25m
09h 30m
Zone 163, Map 3
Normal Image
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2954NGC 2954
ψ
h2504
+14°00'
7 Leo
OSS 102
Psi Leo
+13°00'
See Map 5 for this area
NGC 3024
NGC 3020
NGC 3016 NGC 3016
NGC 3024
ν
+12°00'
IC 555
NGC 2958
+11°00'
ξ
NGC 2984
H V 63
OS 204
STF 1396
NGC 3070
STF 1360
IC 552
NGC 3070
NGC 2919 NGC 2919
NGC 2911 NGC 2911
NGC 2914
STF 1395
ο
Omicron Leo
6 Leo
10h 00m
09h 55m
09h 50m
09h 45m
09h 40m
09h 35m
09h 30m
Zone 163, Map 3
Mirror Image
NGC 2954
+15°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
NGC 2954
NGC 3075
h2504
OSS 102
ψ
+14°00'
7 Leo
Psi Leo
NGC 3080
IC 585
NGC 3024
NGC 3020
NGC 3024
NGC 3016 NGC 3016
+13°00'
See Map 5 for this area
ν
+12°00'
IC 555
NGC 2958
+11°00'
ξ
NGC 2984
OS 204
IC 552
STF 1360
STF 1396
NGC 3070 NGC 3070
NGC 2919 NGC 2919
NGC 2911 NGC 2911
NGC 2914
STF 1395
Omicron Leoο
6 Leo
09h 30m
09h 35m
09h 40m
09h 45m
09h 50m
09h 55m
10h 00m
Zone 163, Map 4
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
ο
+10°00'
NGC 2919 NGC 2919
NGC 2911 NGC 2911
NGC 2914
STF 1395
Omicron Leo
6 Leo
NGC 2940
NGC 2939
NGC 2913
NGC 2939
NGC 2913
STF 1379
+09°00'
NGC 3049
h820
NGC 2906
+08°00'
NGC 2906
+07°00'
NGC 2894
STF 1401
Sextans
NGC 2990
+06°00'
NGC 2948
NGC 2948
Hydra
NGC 2990
NGC 2962 NGC 2962
9 Sex
10h 00m
09h 55m
NGC 2987 NGC 2987
09h 50m
09h 45m
09h 40m
09h 35m
09h 30m
Zone 163, Map 4
Mirror Image
NGC 2919 NGC 2919
NGC 2911 NGC 2911
NGC 2914
+10°00'
Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.
STF 1395
Omicron Leoο
6 Leo
NGC 2913
NGC 2940
NGC 2939 NGC 2939
NGC 2913
+09°00'
NGC 3049
h820
STF 1379
3 Leo
NGC 2948
+07°00'
π
+08°00'
NGC 2906 NGC 2906
NGC 2948
+06°00'
Sextans
Hydra
NGC 2990 NGC 2990
NGC 2962 NGC 2962
NGC 2987
09h 30m
09h 35m
09h 40m
09h 45m
9 Sex
NGC 2987
09h 50m
09h 55m
10h 00m
Zone 163, Map 5
Normal Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
NGC 3020
NGC 3024
NGC 3016
Zone 163, Map 5
Mirror Image
Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc.
NGC 3020
NGC 3024
NGC 3016
Zone 163
25 Double Stars, 19 Galaxies
Flamsteed
NGC 2962 ................................................. 20
NGC 2990 ................................................. 20
NGC 3070 ................................................. 17
3 Leo ........................................................... 5
6 Leo ......................................................... 18
7 Leo ......................................................... 11
O
A
Omicron Leo ............................................. 19
OS 204 ...................................................... 15
OS 98 .......................................................... 4
OSS 102 .................................................... 12
A 2976......................................................... 8
H
H V 63....................................................... 15
h115............................................................. 2
h122............................................................. 2
h124............................................................. 6
h2504......................................................... 13
h808............................................................. 7
h820........................................................... 18
P
Psi Leo ...................................................... 14
S
STF 1299 rej ............................................... 3
STF 1319..................................................... 6
STF 1343..................................................... 5
STF 1348..................................................... 8
STF 1355..................................................... 9
STF 1360................................................... 11
STF 1379................................................... 19
STF 1395................................................... 13
STF 1396................................................... 12
N
NGC 2775 ................................................. 10
NGC 2872 ................................................... 4
NGC 2874 ................................................... 3
NGC 2911 ................................................. 16
NGC 2913 ................................................. 21
NGC 2940 ................................................. 21
-1-
Zone 163
Zone 163, Map 1
Double Stars
Easy
h122
Position: 0914+1109
A
B
Magnitude
8.78
10.55
Rating: 3 E
Separation PA
—
—
9.8 +
91 +?
Year
—
1991
Spectra
F
Colors
W
W
Notes:
1820: 6.5 @ 270. 12 measurements. Quadrant reversal?
The stars share common proper motion even though Hipparcos gives different
distances (148 and 52 light years).
Observations:
C8 at 104x.
h115
Rating: 4 E
HD 77662; SAO 98334
Position: 0905+1418
A
B
Magnitude
9.35
11.04
Separation PA
—
—
20.2 122 -
Year
—
1991
Spectra
G5 V
Colors
yW
?
Notes:
1906: 24.6 @ 125. 5 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 3.00 inches.
Separation: AB = 1.26 miles.
Distance (LY): 40
Total luminosity (Suns): 0.03
-2-
Zone 163
Moderate
STF 1299 rej
Rating: 5 M
HD 77038; SAO 98286
Position: 0900+1312
A
B
Magnitude
9.69
11.11
Separation PA
—
—
23.0 +
113 -
Year
—
1991
Spectra
K0
Colors
yO
?
Notes:
1905: 21.0 @ 119. 8 measurements.
Observations:
C11 at 98x.
Deep Sky Objects
Difficult
NGC 2874
Other Names: H II 58; UGC 5021
Rating: 5 D
Position: 0926+1126
Type: Gal
Surface brightness: 12.8
Class: SB(r)bc
Dimensions: 2.4' x 0.8'
Magnitude: 12.5
PA: 43
Observations:
C8 at 104x. (From The Davis Mountains, 7,500 feet above sea level, the Texas Star
Party, 2001.) Just east of NGC 2872, it offers a slightly brighter view than 2872, but
without a distinct nucleus. Slightly elliptical shape.
Radial velocity (km/sec): +3,783
-3-
Zone 163
NGC 2872
Other Names: H II 57
Rating: 5 D
Position: 0926+1126
Type: Gal
Surface brightness: 12.9
Class: E2
Dimensions: 1.8' x 1.7'
Magnitude: 11.9
PA: 22
Observations:
C8 at 104x. (From The Davis Mountains, 7,500 feet above sea level, the Texas Star
Party, 2001.) Just west of NGC 2874, it is an indistinct fuzzy lozenge without a brighter
nucleus.
Distance (LY): 120,000,000
Radial velocity (km/sec): +3,241
Total luminosity (Suns): 19,600,000,000
Zone 163, Map 2
Double Stars
Easy
OS 98
Rating: 4 E
HD 79955; SAO 117559
Position: 0917+0717
A
B
C
BC
Magnitude
8.26
7.97
13.90
Separation PA
—
—
107.9 170 +
145.2
89
Notes:
AB 1873: 113.1 @ 169. 8 measurements.
BC 1 measurement.
-4-
Year
—
1993
1912
Spectra
F8
F8
Colors
W
W
No
Zone 163
The stars show similar proper motions and similar distances.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.2 inches; B = 14.9 inches.
Separation: AB = 33.8 miles.
Distance (LY): 201
Total luminosity (Suns): 3.9
STF 1343
Rating: 4 E
ADS 7304; HD 80462; SAO 117596
Position: 0920+0500
A
B
Magnitude
9.37
9.59
Separation PA
—
—
9.2 275 +
Year
—
1991
Spectra
G5
Colors
O
pB
Notes:
1825: 10.0 @ 271. 34 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 = 21.0 inches.
Separation: AB = 1.00 mile.
Distance (LY): 69
Total luminosity (Suns): 0.15
3 Leo
Rating: 4 E
ADS 7391; HD 81873; SAO 117718; H IV 47
Position: 0929+0810
A
B
Magnitude
5.72
11.12
Separation PA
—
—
25.7 =
80 -
-5-
Year
—
1998
Spectra
K0 III
Colors
Y
?
Zone 163
Notes:
1852: 25.7 @ 82. 12 measurements. The stars show similar proper motions.
Observations:
C8 at 65x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 46.2 inches.
Separation: AB = 20.9 miles.
Distance (LY): 520
Total luminosity (Suns): 111
STF 1319
Rating: 5 E
SAO 117481
Position: 0911+0835
A
B
Magnitude
10.03
11.87
Separation PA
—
—
13.6 +
51 +
Year
—
1991
Spectra
K5
Colors
Y
W
Notes:
1828: 13.3 @ 49. 12 measurements. The stars show similar proper motions.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 38.5 inches.
Separation: AB = 1.91 miles.
Distance (LY): 90
Total luminosity (Suns): 0.09
h124
Rating: 5 E
SAO 117539
Position: 0915+0531
A
B
C
Magnitude
9.02
11.94
13.39
Separation
—
19.0 +
62.4 +
PA
—
86 240 +
-6-
Year
—
1991
1991
Spectra
G5
Colors
Y
R
B
Zone 163
Notes:
AB 1903: 17.7 @ 90. 3 measurements.
AC 1903: 62.0 @ 236. 4 measurements.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.6 inches.
Separation: AB = 190 miles; AC = 623 miles.
Distance (LY): 6,400
Total luminosity (Suns): 1,020
h808
Barton 2147 (C); SAO 117555
Position: 0917+0814
A
B
C
Magnitude
10.34
10.48
12.20
Separation
—
23. 6+
5.4 +
Rating: 5 E
PA
—
209 202 -
Year
—
1991
1920
Spectra
K
Colors
Y
W
?
Notes:
AB 1880: 21.6 @ 228. 16 measurements.
AC 1897: 5.0 @ 207. 2 measurements.
Observations:
C11 at 98x. C is very difficult.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 39.0 inches.
Separation: AB = 1.51 miles; AC = 1,795 feet.
Distance (LY): 41
Total luminosity (Suns): 0.02
-7-
Zone 163
A 2976
Rating: 5 E
ADS 7310; SAO 117604
Position: 0921+0810
A
B
C
Magnitude
9.36
10.61
13.30
Separation
—
28.6 0.8 =
PA
—
237 =
146 +
Year
—
1991
1989
Spectra
A5
Colors
W
W
No
Notes:
AB 1915: 29.0 @ 237. 4 measurements.
AC 1915: 0.8 @ 140. 3 measurements.
Observations:
C11 at 98x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.80 inches.
Separation: AB = 3.00 miles; AC = 422 feet.
Distance (LY): 67
Total luminosity (Suns): 0.09
Moderate
STF 1348
Rating: 2 M
ADS 7352; HD 81212; SAO 117661
Position: 0924+0621
A
B
Magnitude
7.59
7.59
Separation PA
—
—
1.9 +
316 -
Notes:
AB 1831: 1.1 @ 334. Over 100 measurements.
There is a 14.8m star, 120.0 @ 324 (1960).
Observations:
C8 at 280x.
-8-
Year
—
1997
Spectra
F5 V
F5
Colors
B
B
Zone 163
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches; B = 12.7 inches.
Separation: AB = 2,587 feet.
Distance (LY): 166
Total luminosity (Suns): 6.5
Difficult
STF 1355
Rating: 2 D
ADS 7380; HD 81670; SAO 117704
Position: 0927+0614
A
B
Magnitude
7.73
7.84
Separation PA
—
—
1.9 350 +
Year
—
1997
Spectra
F5 V
Colors
W
W
Notes:
1822: 2.7 @ 328. Over 100 measurements.
Observations:
C8 at 280x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 4.35 inches.
Separation: AB = 2,482 feet.
Distance (LY): 160
Total luminosity (Suns): 5.50
-9-
Zone 163
Deep Sky Objects
Moderate
NGC 2775
Rating: 5 M
Other Names: UGC 4820; H I 2
Astronomical League Program: Caldwell Club, Herschel 400 Club
Position: 0910+0702
Type: Gal
Surface brightness: 13.1
Class: Sb
Dimensions: 5' x 4'
Magnitude: 11.5
PA: 155
Notes:
With more than 180 references in astronomical journals, NGC 2775 is of particular
interest to astronomers for a variety of reasons. First NGC 2775 is a peculiar blend of
spiral galaxy with a smooth bulge in the center. The spiral pattern starts very abruptly
outside of this region showing a mind-boggling complexity (especially at higher
resolutions). The star formation is confined to this ring of tightly wound arms. Indeed this
galaxy has been host to 5 supernovae explosions in the past 30 years. NGC 2775 is
similiar in structure to galaxies such as NGC 2841 and NGC 488.
[Source: http://www.noao.edu/outreach/aop/observers/n2775.html]
Observations:
C8 at 83x. Faint, but with a bright nucleus. Use high power. The axis runs NW-SE.
A blue star lies to the W, and another very faint star 5 min E.
Model (where the Sun is a baseball):
Its diameter would be 28 million miles.
Distance (LY): 60,000,000
Radial velocity (km/sec): +958
Luminosity (suns): 7,000,000,000
- 10 -
Zone 163
Zone 163, Map 3
Double Stars
Easy
7 Leo
Rating: 2 E
ADS 7448; HD 83023; SAO 98662; ; H V 58
Position: 0936+1423
A
B
Magnitude
6.32
9.34
Separation PA
—
—
41.3 +
83 -
Year
—
1982
Spectra
A1 V
F8
Colors
W
B
Notes:
1783: 41.2 @ 80. 26 measurements. May be an optical pair as Hipparcos shows
different distances (510 and 96 light years).
Observations:
C8 at 163x. I made five pairs of separation and PA measures using the Micro-Guide
and got an average of 41" at 81 PA. A pretty pair!
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 8.70 inches; B = 16.2 inches.
Separation: AB = 32.9 miles.
Distance (LY): 510
Total luminosity (Suns): 72
STF 1360
Rating: 3 E
ADS 7406; HD 82159; SAO 98615
Position: 0931+1036
A
B
C
D
Magnitude
8.66
8.67
12.30
11.20
Separation
—
14.1 85.0 +
157.9
PA
—
242 -?
71 +
57
- 11 -
Year
—
1993
1928
1910
Spectra
G5
G5
Colors
W
W
?
?
Zone 163
Notes:
AB 1830: 14.3 @ 63. 60 measurements. Hipparcos/Tycho data show different
distances for these stars; they may be optical. A at 155 light years; B at 119. However,
the stars exhibit common proper motion. Quadrant reversal?
AC 1910: 82.0 @ 70. 2 measurements.
AD 1 measurement.
Observations:
C8 at 163x. An average of five MicroGuide readings gives AB 15" at 245. C and D
too faint for the MicroGuide.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 20.2 inches; B = 20.2 inches.
Separation: AB = 3.41 miles; AC = 20.6 miles; AD = 38.2 miles.
Distance (LY): 155
Total luminosity (Suns): 1.322
OSS 102
Rating: 3 E
HD 82906; SAO 98654
Position: 0935+1405
A
B
Magnitude
7.89
9.07
Separation PA
—
—
45.7 47 +
Year
—
1994
Spectra
B9
G0
Colors
B
W
Notes:
1875: 50.1 @ 41. 18 measurements.
The stars show similar proper motions. May be optical however because Hipparcos
gives different distances (830 and 284 light years).
Observations:
C8 at 83x.
STF 1396
Rating: 3 E
ADS 7585; HD 86059; SAO 98852
Position: 0956+1040
A
B
C
Magnitude
8.58
10.27
10.90
Separation
—
4.0 +
3.8
PA
—
130 +
276
- 12 -
Year
—
1999
1895
Spectra
A0
Colors
W
rO
No
Zone 163
Notes:
AB 1829: 3.5 @ 129. 17 measurements.
AC 1 measurement. No evidence of duplicity seen by Hipparcos.
Observations:
C11 at 193x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 6.34 inches.
Separation: AB = 7.55 miles; AC = 7.17 miles.
Distance (LY): 1,210
Total luminosity (Suns): 55
STF 1395
Rating: 4 E
ADS 7578; HD 85916; SAO 98845
Position: 0955+1007
A
B
Magnitude
8.09
10.77
Separation PA
—
—
18.8 =
229 +
Year
—
1991
Spectra
G5
Colors
Y
W
Notes:
1828: 18.8 @ 228. 12 measurements. The stars share common proper motion.
Observations:
C8 at 104x. A third star (10m) is at 90" and pa 210.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 19.5 inches.
Separation: AB = 18.5 miles.
Distance (LY): 630
Total luminosity (Suns): 21
h2504
Rating: 5 E
ADS 7497; HD 84111
Position: 0943+1407
A
B
Magnitude
9.01
11.80
Separation PA
—
—
6.2 +
172 +
- 13 -
Year
—
1962
Spectra
F8
Colors
W
W
Zone 163
Notes:
1896: 6.0 @ 165. 3 measurements.
Observations:
C8 at 206x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 15.9 inches.
Separation: AB = 4,277 feet.
Distance (LY): 84
Total luminosity (Suns): 0.15
Psi Leo
16 Leo; HD 84194; SAO 98733
Position: 0944+1401
A
B
Magnitude
5.36
11.53
Rating: 5 E
Separation PA
—
—
281.9 +
138 -
Year
—
1909
Spectra
M2 III
Colors
Y
bW
Notes:
1880: 280.3 @ 140. 2 measurements.
The primary is an infra-red source.
Observations:
C8 at 104x.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 66.0 inches.
Separation: AB = 312 miles.
Distance (LY): 710
Total luminosity (Suns): 282
- 14 -
Zone 163
Moderate
OS 204
Rating: 4 M
ADS 7471; HD 83452; SAO 98690
Position: 0939+1047
A
B
Magnitude
6.66
11.29
Separation PA
—
—
8.4 +
102 +
Year
—
1940
Spectra
A3 IV
Colors
Y
?
Notes:
1843: 7.0 @ 98. 11 measurements.
Observations:
C8 at 163x. There is a faint (~12 mag) star about 3 min East.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 10.0 inches.
Separation: AB = 4.41 miles.
Distance (LY): 337
Total luminosity (Suns): 19.27
Difficult
H V 63
Rating: 5 D
HD 86419; SAO 98880
Position: 0959+1058
A
B
C
Magnitude
7.40
11.40
9.00
Separation
—
49.9 207.6
PA
—
350 15
Notes:
AB 1899: 52.5 @ 358. 6 measurements.
AC 1 measurement.
Observations:
C8 at 83x.
- 15 -
Year
—
1988
1988
Spectra
F0 III
Colors
W
?
W
Zone 163
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 23.7 inches.
Separation: AB = 22.3 miles; AC = 92.7 miles.
Distance (LY): 286
Total luminosity (Suns): 8.9
Deep Sky Objects
Difficult
NGC 2911
Other Names: UGC 5092; H II 40
Rating: 5 D
Position: 0934+1009
Type: Gal
Surface brightness: 13.9
Class: SA(s)0: pec
Dimensions: 4' x 3'
Magnitude: 11.6
PA: 140
Notes:
This is a Seyfert galaxy.
Observations:
C8 at 83x. A difficult patch, it lies 2 min W of two 12m stars. No detail seen. It lies
30 min NE of 6 Leo (5.1m, 8.2m; 37" @ 75). Faint, moderate field.
Model (where the Sun is a baseball):
Its diameter would be 73 million miles.
Distance (LY): 196,000,000
Radial velocity (km/sec): +2,978
Luminosity (suns): 69,000,000,000
- 16 -
Zone 163
NGC 3070
Other Names: UGC 5350; H II 59
Rating: 5 D
Position: 0958+1022
Type: Gal
Surface brightness: 13.1
Class: E
Dimensions: 1.5'
Magnitude: 12.3
Observations:
C11 at 98x + LPF. Very faint disc and not much brighter middle. Two stars (8m,
10m) point the way to it (from the NE). It helps to get them out of the field of view.
Radial velocity (km/sec): +5,368
- 17 -
Zone 163
Zone 163, Map 4
Double Stars
Easy
6 Leo
Sh 107; SI 101; ADS 7416; HD 82381; SAO 117751
Position: 0932+0943
A
B
Magnitude
5.09
9.56
Separation PA
—
—
37.8 +
74 -
Rating: 3 E
Year
—
1996
Spectra
K0 III
Colors
D!
B!
Notes:
1781: 35.1 @ 77. 35 measurements. Optical. Hipparcos gives different distances
(482 and 249 light years).
Star A is a spectroscopic binary. It is also an infra-red source.
Observations:
C8 at 83x. Very nice; it totally dominates a very faint and empty field. Colors have
been variously described as D and B (Webb), O! and G, O and B, O and V.
C11 at 98x. Great color saturation!
Distance (LY): 482
Total luminosity (Suns): 154
h820
STF 3122
Position: 0943+0858
A
B
Magnitude
10.02
10.28
Rating: 4 E
Separation PA
—
—
12.9 =
253 =
Notes:
1830: 12.9 @ 253. 10 measurements.
Observations:
C11 at 98x.
- 18 -
Year
—
1991
Spectra
F2
Colors
W
yO
Zone 163
Omicron Leo
Rating: 5 E
ADS 7480; HD 83808; SAO 98709; H VI 76
Position: 0941+0954
A
B
Magnitude
3.56
10.83
Separation PA
—
—
93.6 +!! 47 +
Year
—
1991
Spectra
A5 V
Colors
W
dB
Notes:
The primary is an infra-red source and a spectroscopic binary (14.4980 day period).
Robert Burnham's Celestial Handbook lists this pair as an optical one, but van Dessel,
in 1976, produced an orbit with a 118.227 year period. Yet Hipparcos gives different
distances (135 and 336 light years).
1783: 63.5 @ 40. 17 measurements.
Observations:
C11 at 98x.
Moderate
STF 1379
Rating: 5 M
ADS 7508; HD 84407; SAO 117890
Position: 0945+0853
A
B
Magnitude
7.08
10.91
Separation PA
—
—
9.6 =
175 +
Year
—
1991
Spectra
F5
Colors
W
?
Notes:
1830: 9.6 @ 173. 12 measurements.
Observations:
C8 at 206x. Star B is extremely difficult to see.
Scale model (in which the Sun is the size of a baseball):
Diameter: A = 12.3 inches.
Separation: AB = 3.61 miles.
Distance (LY): 241
Total luminosity (Suns): 6.7
- 19 -
Zone 163
Deep Sky Objects
Moderate
NGC 2990
Other Names: H II 624; UGC 5229
Rating: 3 M
Position: 0946+0542
Type: Gal
Surface brightness: 11.8
Class: Sc: II
Dimensions: 1.1' x 0.6'
Magnitude: 12.7
PA: 85
Observations:
C8 at 83x. Very bright nucleus. An extremely faint star is 2 min NE of the center.
Radial velocity (km/sec): +3,088
NGC 2962
Other Names: UGC 5167
Rating: 5 M
Position: 0941+0510
Type: Gal
Surface brightness: 13.6
Class: (R)SAB(rs)0+
Dimensions: 3.3' x 2.4'
Magnitude: 11.7
PA: 3
Notes:
This galaxy produced supernova 1995D (type Ia).
Observations:
C8 at 83x. A faint and featureless smudge with a stellar nucleus in a sparse field. Its
axis runs N-S. A short chain of three very faint stars lies just S.
C11 at 98x + light pollution filter. NW/SE oval (3 x 1 overall ratio of dimensions),
with a prominent nucleus and a 12.5m star 30" away.
Radial velocity (km/sec): +1,966
- 20 -
Zone 163
Difficult
NGC 2913
Other Names: UGC 5095
Rating: 5 D
Position: 0934+0929
Type: Gal
Surface brightness: 12.7
Class: Sc
Dimensions: 1.1' x 0.7'
Magnitude: 13.1
PA: 140
Observations:
C11 at 98x + LPF. The merest wisp of luminous fog, with no nucleus. Two stars in
the field of view.
Radial velocity (km/sec): +3,055
NGC 2940
Other Names: PGC 27448
Rating: 5 D
Position: 0938+0937
Type: Gal
Surface brightness: 12.9
Class: S0?
Dimensions: 0.9' x 0.7'
Magnitude: 13.5
Observations:
C11 at 98x + light pollution filter. Very, very faint patch without a nucleus, found
with tube movement. A nice 4-star group lies 10 min to the N.
Radial velocity (km/sec): +8,622
- 21 -
Zone 163
Zone 163 Mini-Catalog
Double Stars
Designation
Position
Rating
Map
7 Leo
0936+1423
2E
3
h122
0914+1109
3E
1
STF 1360
0931+1036
3E
3
OSS 102
0935+1405
3E
3
STF 1396
0956+1040
3E
3
h115
0905+1418
4E
1
OS 98
0917+0717
4E
2
STF 1343
0920+0500
4E
2
3 Leo
0929+0810
4E
2
h820
0943+0858
4E
4
STF 1395
0955+1007
4E
3
STF 1319
0911+0835
5E
2
h124
0915+0531
5E
2
h808
0917+0814
5E
2
A 2976
0921+0810
5E
2
Omicron Leo
0941+0954
5E
4
h2504
0943+1407
5E
3
Psi Leo
0944+1401
5E
3
STF 1348
0924+0621
2M
2
OS 204
0939+1047
4M
3
Component
A
B
A
B
A
B
C
D
A
B
A
B
C
A
B
A
B
C
BC
A
B
A
B
A
B
A
B
A
B
A
B
C
A
B
C
A
B
C
A
B
A
B
A
B
A
B
A
B
- 22 -
Mag
6.32
9.34
8.78
10.55
8.66
8.67
12.30
11.20
7.89
9.07
8.58
10.27
10.90
9.35
11.04
8.26
7.97
13.90
9.37
9.59
5.72
11.12
10.02
10.28
8.09
10.77
10.03
11.87
9.02
11.94
13.39
10.34
10.48
12.20
9.36
10.61
13.30
3.56
10.83
9.01
11.80
5.36
11.53
7.59
7.59
6.66
11.29
Separation
—
41.3 +
—
9.8 +
—
14.1 85.0 +
157.9
—
45.7 —
4.0 +
3.8
—
20.2 —
107.9 -
PA
—
83 —
91 +?
—
242 -?
85.0 +
157.9
—
47 +
—
130 +
3.8
—
122 —
170 +
145.2
—
9.2 —
25.7 =
—
12.9 =
—
18.8 =
—
13.6 +
—
19.0 +
62.4 +
—
23. 6+
5.4 +
—
28.6 0.8 =
—
93.6 +!!
—
6.2 +
—
281.9 +
—
1.9 +
—
8.4 +
89
—
275 +
—
80 —
253 =
—
229 +
—
51 +
—
86 62.4 +
—
209 5.4 +
—
237 =
0.8 =
—
47 +
—
172 +
—
138 —
316 —
102 +
Zone 163
Designation
Position
Rating
Map
STF 1299 rej
0900+1312
5M
1
STF 1379
0945+0853
5M
4
STF 1355
0927+0614
2D
2
H V 63
0959+1058
5D
3
Component
A
B
A
B
A
B
A
B
C
Mag
9.69
11.11
7.08
10.91
7.73
7.84
7.40
11.40
9.00
Separation
—
23.0 +
—
9.6 =
—
1.9 —
49.9 207.6
PA
—
113 —
175 +
—
350 +
—
350 207.6
Deep Space
Object
NGC 2990
NGC 2775
NGC 2962
NGC 2872
NGC 2874
NGC 2913
NGC 2911
NGC 2940
NGC 3020
NGC 3070
Position
0946+0542
0910+0702
0941+0510
0926+1126
0926+1126
0934+0929
0934+1009
0938+0937
0950+1249
0958+1022
Rating
3M
5M
5M
5D
5D
5D
5D
5D
5D
5D
Map
4
2
4
1
1
4
3
4
5
3
Specifications
Surface
Type
Mag
Br
Gal (Sc: II)
12.7
11.8
Gal (Sb)
11.5
13.1
Gal ((R)SAB(rs)0+)
11.7
13.6
Gal (E2)
11.9
12.9
Gal (SB(r)bc)
12.5
12.8
Gal (Sc)
13.1
12.7
Gal (SA(s)0: pec)
11.6
13.9
Gal (S0?)
13.5
12.9
Gal (SB(r)cd:)
11.9
13.5
Gal (E)
12.3
13.1
- 23 -
Population