Zone 168, Master Map +14°00' +16°00' Normal View Zone Master, Normal View, 10 deg FOV ζ c d +06°00' f +08°00' +10°00' +12°00' e 14h 56m 14h 48m 14h 40m 14h 32m 14h 24m 14h 16m 14h 08m 14h 00m Zone 168, Map 1 Normal Image +15°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. NGC 5522 NGC 5522 IC 979 NGC 5600 NGC 5600 NGC 5454 +14°00' NGC 5525 NGC 5587 IC 1014 NGC 5591 h234 +13°00' NGC 5505 NGC 5583 NGC 5459 18 Boo NGC 5550 +12°00' Bur 224 OS 279 STF 1838 +11°00' NGC 5456 IC 994 NGC 5532 STF 1823 15 Boo NGC 5414 A 1103 14h 30m 14h 25m 14h 20m 14h 15m 14h 10m 14h 05m HR 5270 14h 00m Zone 168, Map 1 Mirror Image NGC 5522 +15°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. NGC 5522 IC 979 NGC 5600 NGC 5600 NGC 5525 NGC 5648 NGC 5587 +14°00' NGC 5454 IC 1014 NGC 5591 h234 NGC 5505 +13°00' NGC 5583 NGC 5459 18 Boo NGC 5550 OS 279 NGC 5644 NGC 5456 +12°00' Bur 224 NGC 5627 IC 994 +11°00' STF 1838 NGC 5532 STF 1823 15 Boo NGC 5414 A 1103 14h 00m 14h 05m 14h 10m 14h 15m 14h 20m 14h 25m 14h 30m Zone 168, Map 2 Normal Image 15 Boo NGC 5414 NGC 5438 NGC 5409 HR 5270 See Map 5 NGC 5424 NGC 5434 NGC 5416 NGC 5463 NGC 5423 NGC 5416 A 1103 NGC 5482NGC 5482 NGC 5411 +09°00' STF 1823 +10°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. h1252 NGC 5417 NGC 5546 NGC 5417 +08°00' STF 1835 NGC 5405 NGC 5418 NGC 5418 NGC 5514 NGC 5519 OS 275 NGC 5549 +07°00' OS 282 rej NGC 5599 NGC 5575 STF 1824 h2701 NGC 5470 STF 1801 +06°00' NGC 5491 STF 1853 STF 1813 NGC 5619 14h 30m 14h 25m 14h 20m 14h 15m 14h 10m 14h 05m 14h 00m Zone 168, Map 2 Mirror Image Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. +10°00' STF 1823 15 Boo NGC 5414 HR 5270 See Map 5 NGC 5438 NGC 5409 See Map 5 NGC 5424 NGC 5434 NGC 5463 NGC 5423 NGC 5416 NGC 5416 NGC 5482 +09°00' NGC 5411 A 1103 NGC 5482 STF 1835 +08°00' h1252 NGC 5417 NGC 5417 NGC 5418 NGC 5514 NGC 5519 OS 275 NGC 5546 NGC 5549 OS 282 rej +07°00' NGC 5418 NGC 5599 NGC 5491 +06°00' NGC 5575 NGC 5470 STF 1801 STF 1824 h2701 STF 1813 NGC 5619 14h 00m 14h 05m 14h 10m 14h 15m 14h 20m 14h 25m 14h 30m Zone 168, Map 3 Normal Image +15°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. Olivier 187 +14°00' Heintz 66 STF 1862 NGC 5648 NGC 5649 h238 Zeta Boo +13°00' ζ h242 Kustner 48 h241 STF 1861 NGC 5747 +11°00' NGC 5644 A. G. 345 NGC 5666 Barton 1282 H N 81 STF 1857 rej NGC 5669 NGC 5669 STF 1886 15h 00m 14h 55m 14h 50m 14h 45m 14h 40m +12°00' NGC 5762 NGC 5762 14h 35m 14h 30m Zone 168, Map 3 Mirror Image Hussey 1153 Olivier 187 +14°00' Heintz 66 STF 1862 +15°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. ζ Zeta Boo h242 +13°00' h238 Kustner 48 NGC 5762 +12°00' NGC 5747 h241 +11°00' STF 1861 NGC 5762 A. G. 345 NGC 5666 H N 81 Barton 1282 STF 1857 rej NGC 5669 NGC 5669 STF 1886 14h 30m 14h 35m 14h 40m 14h 45m 14h 50m 14h 55m 15h 00m Zone 168, Map 4 Normal Image Barton 1282 +10°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. STF 1857 rej NGC 5669 NGC 5669 STF 1886 STF 1879 Doberck 11 +09°00' IC 1078 IC 1079 NGC 5665 NGC 5665 STF 1870 Holden 120 +08°00' NGC 5681 h2756 STF 1873 +07°00' NGC 5645 h1259 NGC 5652 STF 1883 +06°00' STF 1853 NGC 5661 h2743 NGC 5701 NGC 5701 54 Hya NGC 5674 NGC 5679B NGC 5679A IC 1048 IC 1071 15h 00m IC 1063 14h 55m 14h 50m 14h 45m 14h 40m 14h 35m 14h 30m Zone 168, Map 4 Mirror Image Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. NGC 5669 +10°00' Barton 1282 STF 1857 rej NGC 5669 STF 1886 STF 1879 Doberck 11 NGC 5681 h2756 NGC 5665NGC 5665 STF 1870 Holden 120 +08°00' +09°00' IC 1078 IC 1079 STF 1873 +07°00' NGC 5645 h1259 NGC 5652 +06°00' STF 1853 NGC 5661 STF 1883 h2743 NGC 5674 NGC 5679B NGC 5679A 54 Hya NGC 5701 NGC 5701 IC 1048 Bur 1443 14h 30m 14h 35m 14h 40m 14h 45m IC 1063 14h 50m IC 1071 14h 55m 15h 00m Zone 168, Map 5 Normal Image Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc. NGC 5409 NGC 5434 NGC 5416 NGC 5424 NGC 5423 Zone 168, Map 5 Mirror Image Sky charts generated by TheSky Software; used by permission of Software Bisque, Inc. NGC 5409 NGC 5434 NGC 5416 NGC 5424 NGC 5423 Zone 168 1 Reference Star, 39 Double Stars, 11 Galaxies Flamsteed NGC 5665 ................................................. 22 NGC 5669 ................................................. 23 NGC 5701 ................................................. 21 NGC 5762 ................................................. 15 15 Boo......................................................... 4 18 Boo......................................................... 3 A O A 1103......................................................... 8 A. G. 345................................................... 11 OS 275 ...................................................... 10 OS 279 ........................................................ 3 OS 282 rej ................................................... 8 D Doberck 11................................................ 17 S H STF 1801..................................................... 9 STF 1813..................................................... 6 STF 1823..................................................... 2 STF 1824..................................................... 9 STF 1835..................................................... 7 STF 1838..................................................... 2 STF 1853................................................... 18 STF 1857 rej ............................................. 13 STF 1861................................................... 11 STF 1862................................................... 12 STF 1870................................................... 18 STF 1873................................................... 15 STF 1879................................................... 20 STF 1883................................................... 20 STF 1886................................................... 16 H N 81....................................................... 13 h1252......................................................... 10 h1259......................................................... 19 h241........................................................... 14 h2701........................................................... 7 h2743......................................................... 17 h2756......................................................... 16 Holden 120................................................ 19 HR 5270 ...................................................... 6 K Kustner 48................................................. 12 N NGC 5416 ................................................. 23 NGC 5600 ................................................... 5 NGC 5645 ................................................. 22 NGC 5652 ................................................. 21 Z Zeta Boo.................................................... 14 -1- Zone 168 Zone 168, Map 1 Double Stars Easy STF 1838 Rating: 2 E ADS 9251; HD 126246; SAO 101009; ; H III 20?? Position: 1424+1115 A B Magnitude 6.76 6.94 Separation PA — — 9.4 + 336 - Year — 1997 Spectra F5 V G1 V Colors W W Notes: 1822: 8.4 @ 338. 60 measurements. The stars show similar proper motions. Observations: C8 at 83x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.35 inches; B = 16.2 inches. Separation: AB = 1.71 miles. Distance (LY): 117 Total luminosity (Suns): 3.1 STF 1823 Rating: 5 E ADS 9185; SAO 100945 Position: 1416+1018 A B C Magnitude 9.86 9.75 12.00 Separation — 3.9 + 63.4 PA — 147 231 Notes: AB 1830: 3.4 @ 156. 42 measurements. AC 1 measurement. -2- Year — 1998 1913 Spectra K0 Colors Y No ? Zone 168 Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 27.0 inches. Separation: AB = 1.06 miles; AC = 17.3 miles. Distance (LY): 175 Total luminosity (Suns): 1.34 18 Boo Engelmann 51; HD 125451; SAO 100975 Position: 1419+1300 A B Magnitude 5.41 10.87 Rating: 5 E Separation PA — — 156 217 Year — 1909 Spectra F0 IV Colors yW W Notes: This star is a member of the Ursa Major moving stream. Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 8.40 inches. Separation: AB = 20.7 miles. Distance (LY): 85 Total luminosity (Suns): 4.36 Moderate OS 279 Rating: 5 M ADS 9168; HD 124517; SAO 100922 Position: 1414+1200 A B Magnitude 6.59 9.26 Separation PA — — 2.2 + 254 + -3- Year — 1991 Spectra K0 III Colors W ? Zone 168 Notes: 1843: 1.9 @ 250. 41 measurements. Observations: C8 at 206x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 46.2 inches. Separation: AB = 1.68 miles. Distance (LY): 492 Total luminosity (Suns): 49 Difficult 15 Boo Kuiper 66; HD 124679; SAO 100934 Position: 1415+1006 A B Magnitude 5.40 8.00 Rating: 3 D Separation PA — — 1 120 Year — 1978 Spectra K0 III Colors W O Notes: This star is part of the Wolf 630 group and is an infra-red source. Observations: C8 at 697x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 46.2 inches. Separation: AB = 2,059 feet. Distance (LY): 255 Total luminosity (Suns): 39.2 -4- Zone 168 Deep Sky Objects Difficult NGC 5600 Other Names: UGC 9220; H II 177 Astronomical League Program: Herschel II Club Rating: 5 D Position: 1424+1438 Type: Gal Surface brightness: 12.6 Class: Sc pec Dimensions: 60" x 42" Magnitude: 12.4 Observations: C8 at 104x. Small, bright and fuzzy star. Distance (LY): 100,000,000 Radial velocity (km/sec): +2,319 Total luminosity (Suns): 8,600,000,000 -5- Zone 168 Zone 168, Map 2 Reference Star HR 5270 (HD 122563; SAO 120251) Position: 1402+0941 Mag : 6.18 Assumed distance: 870 light years Spectrum : F8 IV Color : W Assumed luminosity (suns): 200 Observations: C8 at 64x. Notes: This is the brightest very metal poor star known. Double Stars Easy STF 1813 Rating: 2 E ADS 9163; HD 124407; SAO 120348 Position: 1413+0524 A B Magnitude 7.74 7.95 Separation PA — — 4.7 193 + Year — 1992 Spectra A3 IV A3 Colors W B Notes: 1829: 4.8 @ 191. 79 measurements. The stars have different proper motions. Observations: C8 at 83x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 10.1 inches; B = 7.37 inches. Separation: AB = 6.96 miles. Distance (LY): 950 Total luminosity (Suns): 90 -6- Zone 168 STF 1835 Bur 1111 (BC); ADS 9247; HD 126129; SAO 120426 Position: 1423+0827 A B C BC Magnitude 7.86 6.86 7.70 Separation PA — — 6.0 = 194 + 0.2 = 176 + Year — 1996 Rating: 2 E Spectra A0 V F2 V Colors B Y No 1997 Notes: AB 1832: 6.0 @ 185. Over 100 measurements. The companion is a spectroscopic binary (39.50 year period). BC 1889: 0.2 @ 135. Over 100 measurements. It is a rapid binary with a 39.5 year period. The maximum separation is only 0.23" and the motion is direct. Observations: C8 at 104x. Webb saw them as gW, bW. Franks saw W, L. Others have seen W, pY, sometimes B. The color of the companion seemd to give Webb fits. Scale model (in which the Sun is the size of a baseball): Diameter: A = 9.00 inches; B = 10.8 inches. Separation: AB = 2.01 miles; BC = 354 feet. Distance (LY): 215 Total luminosity (Suns): 46.9 h2701 Rating: 3 E ADS 9122 Position: 1409+0602 A B Magnitude 8.44 9.71 Separation PA — — 12.4 + 37 = Notes: 1879: 12.1 @ 37. 14 measurements. The stars share common proper motion. Observations: C8 at 104x. -7- Year — 1991 Spectra G Colors bW? W Zone 168 A 1103 Rating: 3 E ADS 9242; HD 126032 Position: 1423+0943 A B Magnitude 9.49 10.53 Separation PA — — 4.6 203 = Year — 1993 Spectra F5 Colors W W Notes: 1894: 4.7 @ 203. 14 measurements. Observations: C11 at 98x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 14.2 inches. Separation: AB = 5.95 miles. Distance (LY): 830 Total luminosity (Suns): 12 OS 282 rej Rating: 5 E HD 126533; SAO 120457 Position: 1426+0714 A B Magnitude 8.02 11.55 Separation PA — — 24.0 + 215 + Year — 1936 Spectra F8 Colors W B Notes: 1843: 22.5 @ 213. 10 measurements. Observations: C8 at 104x. Use averted vision to see B. Scale model (in which the Sun is the size of a baseball): Diameter: A = 15.0 inches. Separation: AB = 8.91 miles. Distance (LY): 238 Total luminosity (Suns): 2.9 -8- Zone 168 Moderate STF 1824 Rating: 2 M ADS 9188; HD 124929; SAO 120375 Position: 1416+0605 A B Magnitude 7.72 9.89 Separation PA — — 5.4 + 281 - Year — 1991 Spectra A0 III Colors W B Notes: 1829: 5.3 @ 283. 16 measurements. Observations: C8 at 206x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 19.2 inches. Separation: AB = 4.55 miles. Distance (LY): 540 Total luminosity (Suns): 22 STF 1801 Rating: 5 M SAO 120282 Position: 1405+0558 A B Magnitude 9.26 11.10 Separation PA — — 20.2 + 70 + Year — 1927 Spectra K5 Colors O W? Notes: 1828: 18.4 @ 65. 8 measurements. Observations: C11 at 98x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 37.0 inches. Separation: AB = 1.48 miles. Distance (LY): 47 Total luminosity (Suns): 0.040 -9- Zone 168 OS 275 Rating: 5 M ADS 9127; HD 123712; SAO 120311 Position: 1409+0723 A B Magnitude 7.19 10.43 Separation PA — — 5.0 + 354 + Year — 1991 Spectra G9 III Colors W ? Notes: 1843: 4.9 @ 352. 17 measurements. Observations: C8 at 206x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 2.85 inches. Separation: AB = 4.13 miles. Distance (LY): 530 Total luminosity (Suns): 31 h1252 Rating: 5 M ADS 9223; HD 125590; SAO 120405 Position: 1420+0817 A B Magnitude 8.61 11.56 Separation PA — — 11.9 270 = Year — 1991 Spectra K2 Colors Y ? Notes: 1903: 12.2 @ 270. 5 measurements. Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 27.8 inches. Separation: AB = 8.93 miles. Distance (LY): 481 Total luminosity (Suns): 7.41 - 10 - Zone 168 Zone 168, Map 3 Double Stars Easy STF 1861 Rating: 3 E ADS 9322; HD 128460; SAO 101103 Position: 1437+1210 A B C Magnitude 9.59 10.06 13.20 Separation — 14.2 + 46.4 PA — 174 301 Year — 1991 1904 Spectra G0 G5 Colors Y Y No Notes: AB 1828: 14.0 @ 176. 27 measurements. The stars share common proper motion. AC 1 measurement. Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 18.5 inches; B = 21.7 inches. Separation: AB = 4.47 miles; AC = 14.6 miles. Distance (LY): 202 Total luminosity (Suns): 0.8 A. G. 345 Rating: 4 E HD 128580; SAO 101111 Position: 1437+1102 A B Magnitude 9.60 10.77 Separation PA — — 26.2 357 = - 11 - Year — 1991 Spectra G Colors yW W Zone 168 Notes: 1893: 26.3 @ 357. 5 measurements. This may be an optical pair as Hipparcos shows different distances (244 and 548 light years). Observations: C11 at 115x. STF 1862 Rating: 4 E ADS 9325; SAO 101116 Position: 1438+1454 A B Magnitude 9.27 10.46 Separation PA — — 14.7 + 125 - Year — 1991 Spectra F5 G5 Colors W rO Notes: 1828: 14.5 @ 126. 13 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 = 14.0 inches; B = 22.2 inches. Separation: AB = 110 miles. Distance (LY): 4,800 Total luminosity (Suns): 516 Kustner 48 Rating: 4 E ADS 9356 Position: 1443+1310 A B C Magnitude 10.41 11.00 11.54 Separation — 6.2 + 37.3 + PA — 143 + 92 + Notes: 1897: 6.0 @ 140. 9 measurements. AC 1897: 37.1 @ 90. 3 measurements. - 12 - Year — 1961 1910 Spectra K Colors Y No W Zone 168 Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 39.2 inches. Separation: AB = 12.6 miles; AC = 75.7 miles. Distance (LY): 1,300 Total luminosity (Suns): 19 H N 81 Position: 1432+1026 A B Magnitude 6.30 10.10 Rating: 5 E Separation PA — — 86 282 Year — Spectra Colors W bW Notes: The primary is a spectroscopic binary and Delta Scuti variable. Observations: C8 at 104x. A 6m star is 15 min SSE. STF 1857 rej Rating: 5 E SAO 101085 Position: 1435+1010 A B Magnitude 9.80 11.30 Separation PA — — 18.5 340 Year — 1903 Spectra K0 Notes: 1 measurement. The Tycho-2 Catalog indicates a single star entry. Observations: C8 at 104x. - 13 - Colors Y ? Zone 168 h241 Rating: 5 E ADS B7011 Position: 1448+1204 A B Magnitude 10.14 11.44 Separation PA — — 17.3 141 - Year — 1991 Spectra K0 Colors Y B Notes: 1907: 18.1 @ 142. 6 measurements. Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 27.4 inches. Separation: AB = 3.34 miles. Distance (LY): 124 Total luminosity (Suns): 0.13 Difficult Zeta Boo 30 Boo; STF 1865 (B); ADS 9343; SAO 101145; H IV 104 Position: 1441+1344 A B C Magnitude 3.78 3.83 10.94 Separation — 0.7 102.7 + PA — 301260 + Year — 1999 1991 Rating: 2 D Spectra A2 V Colors W W W? Notes: AB 1828: 1.1 @ 311. Over 100 measurements. Obit calculated; period is 123 years; semi-major axis is 0.60"; motion retrograde. AC 1901: 98.6 @ 258. 8 measurements. This system may be optical as the stars appear to be at different distances and have different proper motions (181 and 154 light years). Observations: C11 at 634x. AB was nice! - 14 - Zone 168 Deep Sky Objects Difficult NGC 5762 Other Names: UGC 9535 Rating: 5 D Position: 1449+1227 Type: Gal Surface brightness: 13.3 Class: Sa Dimensions: 1.5' x 1.3' Magnitude: 12.7 PA: 140 Observations: C11 at 140x. A stellar nucleus (~ 5" diameter) with a small halo (~ 30" in diameter). Radial velocity (km/sec): +1,770 Zone 168, Map 4 Double Stars Easy STF 1873 Rating: 2 E ADS 9366; HD 129868; SAO 120635 Position: 1445+0742 A B Magnitude 7.37 7.81 Separation PA — — 6.9 + 93 - Year — 1995 Spectra F5 III Notes: 1823: 6.5 @ 94. 40 measurements.The stars show similar proper motions. Observations: C8 at 104x. Webb saw them as W, Y or B. - 15 - Colors W B! Zone 168 Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.50 inches. Separation: AB = 10.7 miles. Distance (LY): 990 Total luminosity (Suns): 105 STF 1886 Rating: 4 E ADS 9410; HD 131023; SAO 120697 Position: 1451+0944 A B Magnitude 7.40 9.59 Separation PA — — 7.8 + 226 - Year — 1991 Spectra K0 Colors W dB Notes: 1827: 7.5 @ 228. 25 measurements. Observations: C8 at 83x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 23.4 inches. Separation: AB = 1.08 miles. Distance (LY): 89 Total luminosity (Suns): 0.77 h2756 Rating: 4 E HD 132227; SAO 120762 Position: 1458+0816 A B Magnitude 9.31 9.91 Separation PA — — 24.8 91 - Notes: 1873: 27.7 @ 95. 7 measurements. The stars show similar proper motions. Observations: C8 at 104x. - 16 - Year — 1991 Spectra K2 Colors O rO Zone 168 h2743 Rating: 5 E ADS B6986 Position: 1445+0543 A B Magnitude 10.42 11.40 Separation PA — — 24.7 + 22 - Year — 1991 Spectra F8 Colors W B Notes: 1906: 24.4 @ 25. 5 measurements. Observations: C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 17.1 inches. Separation: AB = 1.34 miles. Distance (LY): 35 Total luminosity (Suns): 0.013 Doberck 11 Rating: 5 E HD 131569 Position: 1454+0931 A B Magnitude 9.91 11.05 Separation PA — — 38.5 + 268 + Year — 1991 Spectra G0 Colors O B Notes: AB 1896: 35.5 @ 263. 6 measurements. May be optical because Hipparcos gives different distances (418 and 75 light years). Observations: C8 at 104x. - 17 - Zone 168 Moderate STF 1853 Rating: 3 M ADS 9287; HD 127228; SAO 120500 Position: 1430+0617 A B Magnitude 9.10 9.80 Separation PA — — 2.8 + 83 - Year — 1999 Spectra G0 Colors Y Y Notes: 1830: 2.7 @ 86. 18 measurements. Observations: C8 at 280x. STF 1870 Rating: 4 M ADS 9355; HD 129538; SAO 120618 Position: 1443+0805 A B Magnitude 7.35 10.21 Separation PA — — 4.3 + 229 - Year — 1993 Spectra F2 Colors yW ? Notes: 1829: 4.1 @ 231. 20 measurements. Observations: C8 at 280x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 11.2 inches. Separation: AB = 4.09 miles. Distance (LY): 610 Total luminosity (Suns): 31 - 18 - Zone 168 Holden 120 Fox 186; HD 131303; SAO 120708 Position: 1453+0747 A B C Magnitude 7.94 9.90 11.90 Separation — 22.3 91.7 Rating: 4 M PA — 224 + 44 Year — 1921 1909 Spectra K0 Colors O ? No Notes: AB 1888: 24.7 @ 222. 5 measurements. AC 1 measurement. Observations: C8 at 104x. Star B is faint; I'd estimate the magnitude at more like 11.5, not 9.9. Scale model (in which the Sun is the size of a baseball): Diameter: A = 24.2 inches. Separation: AB = 19.1 miles; AC = 78.8 miles. Distance (LY): 550 Total luminosity (Suns): 23 h1259 Rating: 4 M HD 131786; SAO 120739 Position: 1455+0647 A B Magnitude 6.74 11.94 Separation PA — — 33.6 80 - Year — 1988 Spectra K5 Colors yO ? Notes: 1897: 35.1 @ 83. 3 measurements. Observations: C8 at 83x. Rich field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 31.5 inches. Separation: AB = 45.6 miles. Distance (LY): 870 Total luminosity (Suns): 131 - 19 - Zone 168 Difficult STF 1879 Rating: 4 D ADS 9380; HD 130145; SAO 120651 Position: 1446+0939 A B C D Magnitude 7.26 7.93 13.44 11.46 Separation — 1.6 + 53 130 - PA — 87 + 208 + 219 + Year — 1999 1925 1925 Spectra G2 V Colors W W W? W? Notes: AB 1829: 1.2 @ 68. Over 100 measurements. Orbit calculated; Period is 226years, semi-major axis of 0.99", motion retrograde. AC 1910: 57 @ 206. 2 measurements. AD 1910: 134 @ 218. 2 measurements. Observations: C11 at 634x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 3.30 inches. Separation: AB = 1,848 feet; AC = 11.7 miles; AD = 28.6 miles. Distance (LY): 141 Total luminosity (Suns): 3.03 STF 1883 Rating: 5 D ADS 9392 Position: 1449+0557 A B Magnitude 6.83 6.85 Separation PA — — 0.8 283 + Year — 1999 Spectra F6 V Colors W yW Notes: 1830: 1.2 @ 272. Over 100 measurements. Orbit calculated. Period is 228 years, semi-major axis is 0.84", motion retrograde. Observations: C-11 at 560x. Nice little pair. - 20 - Zone 168 Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.20 inches. Separation: AB = 1,214 feet. Distance (LY): 189 Total luminosity (Suns): 10.1 Deep Sky Objects Moderate NGC 5652 Other Names: H II 891; UGC 9334 Rating: 4 M Position: 1431+0558 Type: Gal Surface brightness: 13.4 Class: SABbc Dimensions: 2.1' x 1.5' Magnitude: 12.5 PA: 117 Observations: C8 at 104x. It very slowly brightens toward the center. No details. Modrate field. Radial velocity (km/sec): +7,496 NGC 5701 Other Names: H II 575; UGC 9436 Rating: 4 M Position: 1439+0523 Type: Gal Surface brightness: 13.8 Class: (R)SB(rs)0/a Dimensions: 4.5' x 4.5' Magnitude: 10.9 Observations: C8 at 104x. It very gradually brightens towards the middle. It is set inside a 10m triangle. Rich field . Model (where the Sun is a baseball): Its diameter would be 28 million miles. - 21 - Zone 168 Distance (LY): 67,000,000 Radial velocity (km/sec): +1,505 Luminosity (suns): 15,300,000,000 Difficult NGC 5645 Other Names: H II 150; UGC 9328 Rating: 4 D Position: 1431+0716 Type: Gal Surface brightness: 14.0 Class: SB(s)d Dimensions: 3.2' x 1.7' Magnitude: 12.5 PA: 80 Observations: C8 at 206x. It has a stellar nucleus and an extremely faint and small halo. Moderate field. Distance (LY): 60,000,000 Radial velocity (km/sec): +1.370 Total luminosity (Suns): 2,900,000,000 NGC 5665 Other Names: Arp 49; UGC 9352; H II 27 Rating: 5 D Position: 1432+0805 Type: Gal Surface brightness: 12.9 Class: SAB(rs)c pec Dimensions: 60" x 48" Magnitude: 12.7 PA: 145 Observations: C8 at 104x. Faint oval (SE-NW). High power does not help. It looks like a star until averted vision reveals a very faint halo. An 11m star is 6 min east. Distance (LY): 98,000,000 Radial velocity (km/sec): +2,228 Total luminosity (Suns): 6,300,000,000 - 22 - Zone 168 NGC 5669 Other Names: UGC 9353; H II 79 Rating: 5 D Position: 1433+0953 Type: Gal Surface brightness: 13.9 Class: SAB(rs)cd IV Dimensions: 2.5' x 2' Magnitude: 12.5 PA: 50 Observations: C8 at 104x. Faint, but a good sky clearness test. It forms a triangle with two faint (around 11m) stars about 6 min away (one to the NW and the other to the N). Model (where the Sun is a baseball): Its diameter would be 20 million miles. Distance (LY): 85,000,000 Radial velocity (km/sec): +1,385 Luminosity (suns): 5,700,000,000 Zone 168, Map 5 Deep Sky Objects Difficult NGC 5416 Other Names: UGC 8944; H III 56 Rating: 5 D Position: 1402+0926 Type: Gal Surface brightness: 13.3 Class: Scd: Dimensions: 1.4' x 0.8' Magnitude: 13.3 PA: 110 Observations: C11 at 140x. Round, very faint, and with not much concentration towards the center. Tube movement was used to verify it. A 6m star 15 min NE is a good jumping off point. Radial velocity (km/sec): +6,240 - 23 - Zone 168 Zone 168 Mini-Catalog Double Stars Designation Position Rating Map STF 1813 1413+0524 2E 2 STF 1835 1423+0827 2E 2 STF 1838 1424+1115 2E 1 STF 1873 1445+0742 2E 4 h2701 1409+0602 3E 2 A 1103 1423+0943 3E 2 STF 1861 1437+1210 3E 3 A. G. 345 1437+1102 4E 3 STF 1862 1438+1454 4E 3 Kustner 48 1443+1310 4E 3 STF 1886 1451+0944 4E 4 h2756 1458+0816 4E 4 STF 1823 1416+1018 5E 1 18 Boo 1419+1300 5E 1 OS 282 rej 1426+0714 5E 2 H N 81 1432+1026 5E 3 STF 1857 rej 1435+1010 5E 3 h2743 1445+0543 5E 4 h241 1448+1204 5E 3 Doberck 11 1454+0931 5E 4 STF 1824 1416+0605 2M 2 Component A B A B C BC A B A B A B A B A B C A B A B A B C A B A B A B C A B A B A B A B A B A B A B A B - 24 - Mag 7.74 7.95 7.86 6.86 7.70 6.76 6.94 7.37 7.81 8.44 9.71 9.49 10.53 9.59 10.06 13.20 9.60 10.77 9.27 10.46 10.41 11.00 11.54 7.40 9.59 9.31 9.91 9.86 9.75 12.00 5.41 10.87 8.02 11.55 6.30 10.10 9.80 11.30 10.42 11.40 10.14 11.44 9.91 11.05 7.72 9.89 Separation — 4.7 — 6.0 = PA — 193 + — 194 + 0.2 = — 9.4 + — 6.9 + — 12.4 + — 4.6 — 14.2 + 46.4 — 26.2 — 14.7 + — 6.2 + 37.3 + — 7.8 + — 24.8 — 3.9 + 63.4 — 156 — 24.0 + — 86 — 18.5 — 24.7 + — 17.3 — 38.5 + — 5.4 + 176 + — 336 — 93 — 37 = — 203 = — 174 46.4 — 357 = — 125 — 143 + 37.3 + — 226 — 91 — 147 63.4 — 217 — 215 + — 282 — 340 — 22 — 141 — 268 + — 281 - Zone 168 Designation Position Rating Map STF 1853 1430+0617 3M 4 STF 1870 1443+0805 4M 4 Holden 120 1453+0747 4M 4 h1259 1455+0647 4M 4 STF 1801 1405+0558 5M 2 OS 275 1409+0723 5M 2 OS 279 1414+1200 5M 1 h1252 1420+0817 5M 2 Zeta Boo 1441+1344 2D 3 15 Boo 1415+1006 3D 1 STF 1879 1446+0939 4D 4 STF 1883 1449+0557 5D 4 Component A B A B A B C A B A B A B A B A B A B C A B A B C D A B Mag 9.10 9.80 7.35 10.21 7.94 9.90 11.90 6.74 11.94 9.26 11.10 7.19 10.43 6.59 9.26 8.61 11.56 3.78 3.83 10.94 5.40 8.00 7.26 7.93 13.44 11.46 6.83 6.85 Separation — 2.8 + — 4.3 + — 22.3 91.7 — 33.6 — 20.2 + — 5.0 + — 2.2 + — 11.9 — 0.7 102.7 + — 1 — 1.6 + 53 130 — 0.8 - PA — 83 — 229 — 224 + 91.7 — 80 — 70 + — 354 + — 254 + — 270 = — 301102.7 + — 120 — 87 + 53 130 — 283 + Deep Space Specifications Surface Br Object NGC 5652 NGC 5701 NGC 5645 NGC 5418 NGC 5417 NGC 5416 NGC 5482 NGC 5600 NGC 5665 NGC 5669 NGC 5762 Position 1431+0558 1439+0523 1431+0716 1402+0741 1402+0802 1402+0926 1409+0856 1424+1438 1432+0805 1433+0953 1449+1227 Rating 4M 4M 4D 5D 5D 5D 5D 5D 5D 5D 5D Map 4 4 4 2 2 5 2 1 4 4 3 Type Gal (SABbc) Gal ((R)SB(rs)0/a) Gal (SB(s)d) Gal (SBbc) Gal (Sa) Gal (Scd:) Gal (SO) Gal (Sc pec) Gal (SAB(rs)c pec IV-V) Gal (SAB(rs)cd IV) Gal (Sa) - 25 - Mag 12.5 10.9 12.5 13.4 13.0 13.3 12.9 12.4 12.7 12.5 12.7 13.4 13.8 14.0 12.7 12.7 13.3 12.9 12.6 12.9 13.9 13.3