Zone 87, Master Map Normal View

Transcription

1 Zone Master, Normal View, 10 deg FOV Zone 87, Master Map Normal View β Menkalinan θ uriga ν υ τ σ ρ λ µ η ε ζ ω Pe ' ' ' ' ' M38 M36 φ Flaming Star 06h 00m 05h 48m 05h 36m 05h 24m 05h 12m 05h 00m

2 , Map 1 Normal Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. Espin 63 STF 669 STF 727 Espin 1377 Espin 1376 Espin 1528 Espin 576. G ρ STF 715 Soulie 66 Collinder 62 Smart ur 751 η ε ζ Espin 1372 STF 613 Epsilon ur Espin ' ' ' ' ' Espin 2615 OSS 63. G. 94 Smart 54 λ SI 3 Lambda ur NGC h 36m 05h 30m 05h 24m 05h 18m 05h 12m 05h 06m 05h 00m 04h 54m

3 , Map 1 Mirror Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. Espin 1372 STF 613 Epsilon urε Espin 14 ζ η ur STF 669 ρ Soulie 66 Smart 52. G. 314 Espin 576 Collinder 62 Espin 1377 Espin 1376 Espin STF 715 STF ' ' ' ' ' Espin 2615 λ SI 3 Lambda ur Smart 54. G. 94 OSS 63 04h 54m 05h 00m 05h 06m 05h 12m 05h 18m 05h 24m 05h 30m 05h 36m

4 Scheiner 296 M38 NGC 1912 Scheiner 308 σ λ Zone 87, Map 2 Normal Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. Scheiner 345 OSS 63 li 516 ur 1318 Espin G. 94 STF 699 Scheiner 223 Smart 54 Sigma ur Weisse 8 h3272 Scheiner 139 SI 3 Lambda ur NGC 1857 STF 658 h3271 PK Doolittle 32 µ STF 646 STF 644 Scheiner 89 h3265 Scheiner 76 NGC 1778 h3266 h692 STF 621. G. 86 Espin ur. G. 83 Espin 2215 ω Omega ur ' ' ' ' ' Scheiner 309 STF 705 Scheiner 249 NGC 1907 Scheiner 186 Scheiner 303 STF 698 Scheiner h 30m φ Phi ur ur h 24m 05h 18m 05h 12m 05h 06m 05h 00m

5 ω 5 ur Espin 2215 Omega ur STF 621. G. 83. G. 86 Espin 331 h692 Zone 87, Map 2 Mirror Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. STF 646 STF 644 Scheiner 89 NGC 1778 Scheiner 76 h3265 h3266 µ Doolittle 32 λ STF 658 h3271 SI 3 PK Scheiner 139 Lambda ur Smart 54 h3272 NGC 1857 Weisse 8 Scheiner 186 σ. G. 94 Scheiner 223 STF 699 Sigma ur Espin 2615 ur 1318 OSS 63 li 516 Scheiner 296 M38 NGC 1912 Scheiner 308 STF 705 Scheiner 309 Scheiner 249 NGC ' ' ' ' ' Scheiner 180 STF 698 Scheiner 303 ur 191 φ Phi ur 05h 00m 05h 06m 05h 12m 05h 18m 05h 24m 05h 30m

6 , Map 3 Normal Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. β uriga Menkalinan eta ur ur 1055 H VI 91 STF 822 rej 1570 Espin 1531 rgelander 62 Espin 1728 rgelander Smart 59 STF 768 rej STF 736 Espin 63 STF 727 Espin 1376 Espin 1377 Espin STF ' ' ' ' ' Weisse 10 STF 802 STF 803 rej Hipparcos 786 STF 775 Espin 2615 OSS 63 STF h 06m 06h 00m 05h 54m 05h 48m 05h 42m 05h 36m 05h 30m 05h 24m

7 , Map 3 Mirror Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. Collinder 62 Espin 576 Espin 1376 Espin 1377 Espin STF 715 STF 727 STF 736 Espin 63 Smart STF 768 rej Weisse 10 eta urβ rgelander 62 rgelander 61 ur 1055 H VI 91 Espin 1531 Espin Menkalinan STF 822 rej uriga ' ' ' ' ' Espin 2615 STF 775 Hipparcos 786 STF 802 STF 803 rej. G. 94 OSS 63 STF h 24m 05h 30m 05h 36m 05h 42m 05h 48m 05h 54m 06h 00m 06h 06m

8 , Map 4 Normal Image Sky charts generated by TheSky Software; used by permission of Software isque Inc. ur 893. G. 104 Theta urθ STF 825 STF 802 STF 803 rej Weisse 11 STF 791 ν υ τ Tau ur Nu ur STF 799 Hipparcos 786 Scheiner 397. G. 101 STF 775 Scheiner 383 all 16 Espin 2217 Espin 2615 OSS 63 ur 1318 Stock 10 li 516 Scheiner 345 Scheiner 323 Scheiner 349 Scheiner 363 M38 Scheiner 296 NGC G. 95 Scheiner 308 σ ' ' ' ' ' Scheiner 309 STF 705 NGC 1907 Scheiner 394 Scheiner h 00m 05h 54m 05h 48m 05h 42m 05h 36m Phi urφ 05h 30m

9 , Map 4 Mirror Image Sky charts generated by TheSky Software; used by permission of Software isque Inc.. G. 94 STF 699 Sigma ur Espin 2615 ur 1318 OSS 63 li 516 M38 Scheiner 296 NGC 1912 Scheiner 308 STF 705 Scheiner 249 Scheiner 309 NGC 1907 Scheiner 323. G. 95 Scheiner 345 Espin 2217 Stock 10 Scheiner 349 Scheiner 363 STF 775 Tau urτ ν Nu ur Scheiner 383 all 16 STF 791 υ Hipparcos 786 STF 802 STF 803 rej Weisse 11 STF 799 Scheiner 397. G. 101 θ Theta ur STF ' ' ' ' ' STF 698 ur 191 φ Scheiner 394 Scheiner 303 Phi ur 05h 30m 05h 36m 05h 42m 05h 48m 05h 54m 06h 00m

10 Index 80 Double Stars, 1 Planetary Nebula, 6 Open Clusters Flamsteed 5 ur G G G G G G li rgelander rgelander all eta ur ur ur C Collinder D Doolittle E Epsilon ur...6 Espin Espin Espin Espin Espin Espin Espin Espin Espin Espin Espin H h h h h h Hipparcos L Lambda ur...10 N NGC NGC NGC NGC

11 NGC Nu ur O OSS P PK S Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner Scheiner SI Sigma ur Smart Smart Soulie STF STF STF STF STF STF STF STF STF STF 768 rej...36 STF STF STF STF STF 803 rej...41 Stock T Tau ur...52 W Weisse Weisse Weisse

12 Zone 87, Map 1 Double Stars Easy Espin 2615 HD ; SO Rating: 2 E Position: K2 Y! yw C W D : measurements. C 1893: measurements. D 1918: measurements. Hipparcos gives discordant distances: 730 light years to, 574 to, 980 to C, and 1,860 to D. C11 at 115x. This system forms a gorgeous diamond solitare! 1556 DS 3833; HD ; SO Rating: 3 E Position: W = 1999 W? 1907: measurements

13 C11 at 115x. Soulie 66 HD 34492; SO Rating: 3 E Position: m W W? 1896: measurements. C11 at 115x. It is part of a small tirangle. 6m star lies about 5 min S. Diameter: = 7.58 inches. Separation: = 285 miles. Distance (LY): 9,600 Total luminosity (Suns): 5,400 Espin 576 DS 3975; HD 35101; SO Rating: 3 E Position: W = Q 1893: measurements. C8 at 104x. Moderately rich field

14 Espin 1376 DS 4009 Rating: 3 E Position: Y = W 1894: measurements. C11 at 115x. Distance (LY): 473 Total luminosity (Suns): 3.25 Espin ; DS 3580; HD 31678; SO Rating: 4 E Position: V W = 156 = 1991 W 1893: measurements. C8 at 104x. Very rich field. Diameter: = 9.00 inches. Separation: = 19.2 miles. Distance (LY): 371 Total luminosity (Suns):

15 Epsilon ur Rating: 4 E 7 ur; Maaz, "the he-goat"; ur 554; DS 3605; HD 31964; SO Position: F0 Iaev Y = ? C = 1925? 1878: measurements. C 1879: measurements. The variability of the light was discovered by the German amateur astronomer J. H. Fritsch in Star is a supergiant eclipsing binary and 180 times the diameter of the Sun! It is also an infra-red source and a shell star. The invisible partner defies imagination it is 2,800 times the Sun's diameter (making it larger than Saturn's orbit!) but only 1 billionth of the Sun's density, less dense than a good laboratory vacuum. The orbit takes years. The most popular theory at present on the nature of the companion is that it is actually a disk of debris surrounding a small and invisible star perhaps the early stages of the development of a new solar system? This disk is thought to be 10 U across and 1 U thick, and has a measured temperature of 500 o K. C8 at 206x. Diameter: = 45 feet. Separation: = 137 miles; C = 144 miles. Distance (LY): 2,050 Total luminosity (Suns): 21,

16 Smart 52 Rating: 4 E Position: W W 1911: measurements. C11 at 115x. Distance (LY): 99 Total luminosity (Suns): Espin 1377 DS 4037 Rating: 4 E Position: O! = W 1894: measurements. C11 at 115x. Distance (LY): 242 Total luminosity (Suns):

17 Espin 1528 DS 4057 Rating: 4 E Position: W O The Tycho-2 catalogue indicates a photo-center solution of a known or suspected double, or one component of a double where the companion has been rejected. 1916: measurement. C11 at 115x. It is at the hook end of a "fishhook" of six 10m stars. Distance (LY): 800 Total luminosity (Suns): 5.84 SI 3 Kuiper 20 H V 88 Rating: 5 E Position: G1 V W No C !! 1934? D !! 3 -! 1921 W E !! 211 +!! 1921 No 1 measurement. C 1879: measurements. The stars have different proper motions. ( is, in fact, a high proper motion star.) D 1836: measurements. E 1911: measurements. C8 at 104x

18 Diameter: = 12.0 inches. Separation: = 3.50 miles; C = 5.01 miles; D = 17.6 miles; E = 23.1 miles. Distance (LY): 77 Total luminosity (Suns): G. 314 Rating: 5 E HD ; SO Position: K0 yo ??!! bw 1907: measurements. The separations look discordant. I checked the DSS2 site and found the 1991 measure to be accurate 84). The 1907 measure comes closest to a infra-red source, IRS , which in 2002 measured 74 (again, on the digitized sky survey using the ladin utility at the CDS website). C11 at 115x. Moderate ur 751 DS 3727; HD 33077; SO 4065 Rating: 5 M Position: G5 Y W C !! 175 -!! W 1891: measurements

19 C 1899: measurements. C11 at 339x. Diameter: = 19.5 inches. Separation: = 2,482 feet; C = 1.46 miles. Distance (LY): 75 Total luminosity (Suns): 0.28 Lambda ur Rating: 5 M 15 ur; SII 3; Doberck 4 (E); Kuiper 20 (C); OS 23; DS 3886; HD 34411; SO Position: G1 V Y! ? C !! 1934 W? D !! 3 -! 1921 W 1 measurement. C 1879: measurements. D 1836: measurements. There are several other very faint comes. C11 at 115x. was very difficult. Diameter: = 7.3 inches. Separation: = 1.90 miles; C = 2.70 miles; D = 9.40 miles. Distance (LY): 41 Total luminosity (Suns):

20 Deep Sky Objects Collinder 62 Rating: 4 E Position: Type: Oc Class: IV 3p Magnitude: 4.2 Dimensions: 28' C8 at 104x. It contains 19 stars brighter than 10m in a sparse arrangement. Zone 87, Map 2 Double Stars Easy STF 646 DS 3739; SO Rating: 2 E Position: G5 IV? Y = G5 V? bw 1831: measurements. Hipparcos/Tycho data show different distances for these stars; they may be optical. However, the stars show similar proper motion. C8 at 104x. Moderate field to the S

21 Diameter: = 16.0 inches; = 17.0 inches. Separation: = 9.84 miles. Distance (LY): 399 Total luminosity (Suns): 8 STF 699 DS 4004; HD 35313; SO Rating: 2 E Position: V W Y 1830: measurements. The stars show a similar, but small, proper motion. C8 at 83x.. G. 83 Rating: 4 E DS 3592; SO Position: F0 W = 132 = 1928 bw 1896: measurements. C11 at 115x

22 STF 621 DS 3601; HD ; SO Rating: 4 E Position: K0 V? O W 1831: measurements. C8 at 104x. nice 8m right triangle is 5 min NE, and a 5m Y star is 7 min NNW. Diameter: = 37.0 inches. Separation: = 2.51 miles. Distance (LY): 161 Total luminosity (Suns): 1.1 Doolittle 32 HD 33688; SO Rating: 4 E Position: W = : measurements. C8 at 104x. Two 8m stars are 5 min W and a 50" double is 5 min N. Rich field. Diameter: = 7.72 inches. Separation: = 64.5 miles. Distance (LY): 1,640 Total luminosity (Suns):

23 h3271 DS 3852 Rating: 4 E Position: W po? 1895: measurements. C11 at 115x. Faint and scattered field. Diameter: = 6.63 inches. Separation: = 4.83 miles. Distance (LY): 265 Total luminosity (Suns): 1.61 Scheiner 223 Rating: 4 E Position: W = 1991 W 1895: measurements. C8 at 104x; moderately rich field. Diameter: = 9.10 inches. Separation: = 2.46 miles. Distance (LY): 70 Total luminosity (Suns):

24 STF 705 DS 4024; HD ; SO Rating: 4 E Position: F8 W = 1982 W 1829: measurements. C11 at 115x. It is fried by a 6m Y star 3 min NE. ur 1318 DS 4065 Rating: 4 E Position: W No C W 1903: measurements. C 1903: measurements. The stars share common proper motion. C8 at 104x. It is just 2 min W of a line of five 9m stars

25 h692 HD 32905; SO Rating: 5 E Position: F0 W = 1931 W 1895: measurements. C8 at 104x. 9.1m star (SO 57669) is 4 min ENE. Scheiner 76 Rating: 5 E Position: W W 1895: measurements. C8 at 104x. It is totally overwhelmed by an extremely rich field. The small open cluster NGC 1778 lies just 5 min S. h3265 HD ; SO Rating: 5 E Position: IIa W = 1987 W C = 1987?

26 1895: measurements. C 1895: measurements. George bt found 8 more very faint comes. C11 at 115x. Very nice and faint field (the open cluster NGC 1778). This pair is about in the middle of the cluster. STF 658 DS 3846; HD 34093; SO Rating: 5 E Position: V? W O C No D No 1832: measurements. C and D, 1 measurement. C8 at 104x. Extremely rich field. Diameter: = 5.96 inches. Separation: = 9.05 miles; C = 36.7 miles; D = 39.0 miles. Distance (LY): 1,000 Total luminosity (Suns):

27 Scheiner 186 HD Rating: 5 E Position: W W 1895: measurements. C8 at 104x. It is overpowered by a moderately rich and fairly bright field. Distance (LY): 99 Total luminosity (Suns): 0.05 Smart 54 Rating: 5 E Position: W ? 1907: measurements. C11 at 115x. Swamped by a very rich and bright field. Diameter: = 4.74 inches. Separation: = 30.2 miles. Distance (LY): 1,210 Total luminosity (Suns):

28 Scheiner 249 Rating: 5 E Position: W W 1 measurement. C8 at 104x. Moderately rich field. Distance (LY): 142 Total luminosity (Suns): 0.13 Scheiner 296 Rating: 5 E Position: W W 1895: measurements. The stars show similar proper motions. C8 at 104x. It lies on the NE edge of the OC M38. Scheiner 308 Rating: 5 E Position: W ?

29 1 measurement. C8 at 104x. was very difficult to pick up. It lies 3 min E of an open cluster. Moderate Weisse 8 DS 3897 Rating: 3 M Position: G5 W W 1901: measurements. There is a 14.0m star at 223 (1911). C8 at 280x. Moderately rich field.. G. 94 Rating: 3 M DS 3988 Position: K2 Y W 1902: measurements. C8 at 280x. Moderately rich field

30 5 ur Rating: 4 M OS 92; DS 3589; HD 31761; SO Position: F3 V Y : measurements. The CHR orbiting observatory found a companion to at 77. C8 at 206x. Webb: Y. Diameter: = 5.00 inches. Separation: = 1.11 miles. Distance (LY): 173 Total luminosity (Suns): 9.7. G. 86 Rating: 4 M DS 3643 Position: G5 W W 1902: measurements. C8 at 280x. Some field stars form a boomerang pattern with this pair at the angle of the boomerang

31 Espin 331 DS 3669; HD ; SO Rating: 4 M Position: K0 O ? 1906: measurements. C11 at 115x. Very bright and rich field. Scheiner 139 HD 34094; SO Rating: 4 M Position: W ? 1 measurement. C8 at 104x. Rich but faint field. Diameter: = 6.59 inches. Separation: = 11.8 miles. Distance (LY): 281 Total luminosity (Suns):

32 h3266 DS 3705 Rating: 5 M Position: G0 W W 1895: measurements. C11 at 115x. Very rich and faint field (the open cluster NGC 1778). This pair lies on the S edge of the cluster. Scheiner 89 Rating: 5 M Position: W ? 1991 W 1895: measurements. Quadrant reversal? C8 at 104x. It is totally overpowered by a bright and rich field with a 6m stinger 8 min WNW. Distance (LY): 27 Total luminosity (Suns):

33 Sigma ur 21 ur; ur 888; DS 3984; HD 35186; SO Rating: 5 M Position: K4 III dy!! ? C = 1914? D No CD : measurements. C 1898: measurements. CD 1898: measurements. The primary is an infra-red source. C8 at 206x. Diameter: = 28.0 inches. Separation: = 6.92 miles; C = 21.8 miles. Distance (LY): 510 Total luminosity (Suns): Scheiner 309 DS 4084; SO Rating: 5 M Position: W ro 1 measurement

34 C8 at 104x. Rich field. Difficult STF 644 DS 3734; HD 33203; SO Rating: 5 D Position: II W = K3 W C !! 1996? 1828: 219. Over 100 measurements. Star is a spectroscopic binary and an infra-red source. Hipparcos/Tycho data show different distances for these stars; they may be optical. C 1895: measurements. Quadrant reversal? C8 at 280x. Webb: D, br; "remarkable and constant colors." Dembowski saw them as G, R. Diameter: = 1.18 inches; = 33.1 inches. Separation: = 5.12 miles; C = 235 miles. Distance (LY): 2,050 Total luminosity (Suns): 1,823 h3272 DS 3898; HD 34545; SO Rating: 5 D Position: K5 III Y ? C = 1987? D ?

35 1879: measurements. C 1879: measurements. D 1879: measurements. George bt claims 12 more extremely faint comes. C8 at 104x. It lies in a moderately rich and bright field, the open cluster NGC Diameter: = feet. Separation: = 41.9 miles; C = 67.4 miles; D = 76.8 miles. Distance (LY): 1,500 Total luminosity (Suns): 215 Deep Sky Objects NGC 1907 Rating: 2 E Other Names: Melotte 35; Collinder 66; Raab 25, H VII 39 stronomical League Program: Herschel 400 Club; inocular Deep Sky Club Position: Type: Oc/Gn Class: II 1mn Magnitude: 8.2 Dimensions: 5' Cluster population: 40 It is 440 million years old; the youngest stars are 3 types. The brightest star is 11m (60 times brighter than the Sun). This cluster lies 32,000 light years from the galactic center and 20 light years above the galactic plane. Easy C8 at 206x. Exquisite view! It is nebulous at low power, resolved at high power. Very compact. Webb described it as a "very large cluster of minute stars arranged in curves." With a 13-inch Newtonian, Steve Coe describes a "dark lane down the middle."

36 C11 at 115x. Extremely rich and faint group, very tight. I counted about 30 stars in a grainy field. Rich field. Model (where the Sun is a baseball): Its diameter would be 2,100 miles and its stars would be 311 miles apart. Distance (LY): 5,070 Luminosity (suns): 1,060 NGC 1907 Open cluster (II 1 mn) Observed with C8 on 2/1/92 Magnification: 80x NGC 1912 Rating: 2 E Other Names: Melotte 36; Collinder 67; Raab 26, M38 stronomical Leage Program: Messier Club; Urban Deep Sky Club Position: Type: Oc Class: II 2r Magnitude: 6.4 Dimensions: 21' Cluster population:

37 It was discovered by Le Gentil in Messier added it to his catalog on September 25, He said "this one is square and contains no nebulosity if one is careful to examine it with a good telescope." It is 25 light years in diameter and 290 million years old. The youngest stars are 4 and 5 types but the brightest star is a G0 giant 900 times brighter than the Sun. It is part of the uriga O1 association. This cluster lies 32,000 light years from the galactic center and 50 light years above the galactic plane. C8 at 65x. wesome! It has a sparse center. The eyepiece view suggests an inverted Greek "pi". Note the bright star (8m) just above the center. Webb described it as a "noble cluster arranged as oblique cross; pair of larger stars in each arm; brighter star in centre. Glorious neighbourhood." Very rich field. Model (where the Sun is a baseball): Its diameter would be 8,260 miles. Its stars would be 900 miles apart Distance (LY): 3,480 Luminosity (suns): 2,600 NGC 1912 (M38) Open cluster (100 stars; II 2 r) Observed with C-8 on 1/30/92 Magnification: 80x

38 Moderate NGC 1857 Other Names: Melotte 32; Collinder 61, H VII 33 stronomical League Program: Herschel 400 Club Rating: 3 M Position: Type: Oc Class: I 3m Magnitude: 8.2 Dimensions: 5' Cluster population: 45 This cluster lies 34,000 light years from the galactic center and 130 light years above the galactic plane. The brightest star is 11m. C8 at 83x. verted vision is helpful. Note the 7m O star at the center, and the many and W stars. The foreground stars to the N are a loose open cluster called Czernik 20. Webb calls it a "splendid region." Model (where the Sun is a baseball): Its diameter would be 2,810 miles, with its stars 410 miles apart. Distance (LY): 6,000 Luminosity (suns): 1,500 NGC 1778 Other Names: Collinder 58, H VIII 61 stronomical League Program: Herschel II Club Rating: 4 M Position: Type: Oc Class: III 2p Magnitude: 7.7 Dimensions: 6' x 3' Cluster population: 25 It is 143 million years old and its earliest stars are of spectral class 6. The brightest star is 10.1m (140 times brighter than the Sun). It lies 32,000 light years from the galactic center and 165 light years south of its central plane

39 C8 at 104x. Small, oblong, and rich! It is dominated by four 9m stars; also, note the pair of 10m stars 12" apart (pa about 340) at the N end. Model (where the Sun is a baseball): Its diameter would be 2,500 miles, with its stars 400 miles apart. Distance (LY): 480 Luminosity (suns): 1,500 PK Rating: 4 M Position: Type: Pn Class: 2 Magnitude: 12.0 Dimensions: 32'' C8 at 83x. It resembled a star that would not focus. I had a better view of it at 200x with a filter. There were no sharp edges detected. The central star is 16.2m. Rich field

40 Zone 87, Map 3 Double Stars Easy 1720 DS 4082; HD ; SO Rating: 3 E Position: W yw 1907: measurements. C11 at 339x. Duplicity was suspected at 115x. Weisse 10 SO Rating: 3 E Position: W ? 1991 W 1901: measurements. Quadrant reversal? C11 at 115x. There is a nice meandering "wall" of stars 10 min W

41 1565 DS 4283 Rating: 3 E Position: K0 III yo bw 1907: measurements. C11 at 115x. It forms the obtuse angle of a very flat triangle. STF 775 HD 37977; SO Rating: 3 E Position: G0 IV? yw = O 1830: measurements. C8 at 104x. Faint but rich field. Diameter: = 16.0 inches. Separation: = 6.00 miles. Distance (LY): 171 Total luminosity (Suns):

42 rgelander 61 SO Rating: 3 E Position: W = 1987 W 1896: measurements. May be optical because Hipparcos gives different distances (429 and 603 light years). C8 at 104x. With a 9.8 star to the S, it forms a nice acute triangle. rgelander 62 Rating: 3 E Position: K0 Y W 1860: measurements. The Tycho-2 Catalog indicates a single star entry. C11 at 115x. Diameter: = 28.8 inches. Separation: = 1,109 feet. Distance (LY): 19 Total luminosity (Suns):

43 STF 715 DS 4083; HD 35951; SO Rating: 4 E Position: IV? W No C ? 1831: measurements. C 1 measurement. C8 at 206x. I measured an C pa of 320 with a Celestron MicroGuide. Diameter: = 5.84 inches. Separation: = 1.90 miles; C = 46.3 miles. Distance (LY): 1,520 Total luminosity (Suns): 107 STF 768 rej DS 4288; HD 37841; SO Rating: 4 E Position: W ? 1896: 222. L 6 measurements. C8 at 83x

44 Diameter: = 4.13 inches. Separation: = 18.7 miles. Distance (LY): 630 Total luminosity (Suns): 33 Espin 1728 DS 4482 Rating: 4 E Position: W W 1 measurement. The Tycho-2 Catalogue indicates a single star entry. C11 at 115x. Distance (LY): 55 Total luminosity (Suns): Espin 1531 arton 91; DS 4508 Rating: 4 E Position: W = O C W 1916: measurements. C 1 measurement

45 C11 at 115x. Espin 63 DS 4173; HD 36720; SO Rating: 5 E Position: W O 1894: measurements. C8 at 104x. Very rich field. Diameter: = 6.35 inches. Separation: = 32.9 miles. Distance (LY): 2,700 Total luminosity (Suns): 211 eta ur Rating: 5 E 34 ur; Menkalinan, "shoulder of the rein holder"; DS 4556; HD 40183; SO 40750; H VI 88 Position: IV W W 1841: measurements. Star is an eclipsing binary (period of 3d 23h 2m 30s), a fact discovered by. Maury in It is an lgol-type system. This star is an infra-red source and is 3 times larger than the Sun. The primary has 2.33 solar masses and the spectroscopic companion The orbit is nearly circular

46 The star belongs to the Ursa Major moving stream. From James Kaler's Star Menkalinan (Men-KL-in-an) is an rabic name meaning "the shoulder of the reinholder." s Polaris locates the north pole and Mintaka in Orion's elt the celestial equator, Menkalinan locates the "solstitial colure," the great circle in the sky that passes through both celestial poles and the summer and winter solstices. Menkalinan is a mere half-minute of arc (an angle less than the eye can see) off the colure. Immediately south lies Theta urigae, which is even closer, a quarter of a minute away. Menkalinan is a class star with a temperature of 9,200 Kelvin, not very much different from Vega or Sirius and somewhat brighter than a normal " star" should be. Careful observation reveals that every 3.96 days, the "star" undergoes a partial eclipse of about a tenth of a magnitude, showing that it actually consists of two almost identical stars in a tight orbit, each about 48 times more luminous than the Sun separated only about one-fifth the distance between the Sun and Mercury. They may both be "subgiants" that have begun to change and brighten as a result of exhaustion of their core hydrogen fuel. They are so close that they distort each other through mutual tides, neither of them round. faint red dwarf far below naked-eye vision appears to orbit the pair at least 330 Earth-Sun distances away, from which the bright pair would be just barely separable by eye. C8 at 104x. Moderate field. Diameter: = 11.7 inches. Separation: = 23.7 miles. Distance (LY): 82 Total luminosity (Suns): 95 Moderate 1570 DS 4531 Rating: 2 M Position: W W

47 1907: measurements. C11 at 339x. Diameter: = 10.2 inches. Separation: = 12.7 miles. Distance (LY): 4,530 Total luminosity (Suns): 520 STF 802 DS 4456; HD 39154; SO Rating: 4 M Position: G0 IV? W po C = 1909 No 1828: measurements. C 1880: measurements. Different proper motions. C8 at 206x. Some observers report both as W. Diameter: = 16.1 inches. Separation: = 1.31 miles; C = 97.9 miles. Distance (LY): 324 Total luminosity (Suns):

48 Hipparcos 786 SO Rating: 5 M Position: F8 IV W ro 1 measurement. C11 at 115x. Diameter: = 14.0 inches. Separation: = 17.8 miles. Distance (LY): 960 Total luminosity (Suns): 13 STF 803 rej Rating: 5 M Position: W ? 1 measurement. C11 at 115x. This pair is the top-center star of a "T". STF 802 is the NW star of the "T". Distance (LY): 54 Total luminosity (Suns):

49 Difficult STF 727 DS 4137; HD 36422; SO Rating: 4 D Position: F5 III? W = W 1830: measurements. C8 at 280x. Moderate field. Diameter: = 11.7 inches. Separation: = 7.04 miles. Distance (LY): 2,050 Total luminosity (Suns): 350 STF 736 DS 4204; HD 36929; SO Rating: 4 D Position: F8 V? R 1830: measurements. C8 at 280x. Webb: W,. Diameter: = 10.9 inches. Separation: = 3,010 feet. Distance (LY): 146 Total luminosity (Suns):

50 Zone 87, Map 4 Double Stars Easy STF 791 DS 4420; SO Rating: 2 E Position: V? W O C : measurements. C 1880: measurements. C8 at 104x. Moderate field. Diameter: = 5.86 inches. Separation: = 8.43 miles; C = 103 miles. Distance (LY): 1,080 Total luminosity (Suns): 64 OSS 63 HD 36041; SO Rating: 3 E Position: G9 III O K0 Y

51 1874: measurements. The stars show similar proper motion and distances (461 and 493 light years). C8 at 104x. Very, very rich field.. G. 95 Rating: 3 E SO Position: :V:pe W W 1895: measurements. C11 at 115x. Diameter: = 13.8 inches. Separation: = 12.9 miles. Distance (LY): 340 Total luminosity (Suns): 2.40 Nu ur 32 ur; DS 4440; HD 39003; SO 58502; H V 90 Rating: 3 E Position: K0 III dy? G9?

52 1877: measurements. The primary is an infra-red source. C8 at 104x. The color of star is difficult. Diameter: = 10.0 feet; = 4.60 inches. Separation: = 18.3 miles. Distance (LY): 215 Total luminosity (Suns): G. 101 Rating: 3 E DS 4457; SO Position: W ! 0 -! 1987 O 1895: measurements. C11 at 115x. Distance (LY): 163 Total luminosity (Suns): 0.53 Weisse 11 HD 39433; SO Rating: 3 E Position: W ? 1991 W

53 1904: measurements. Quadrant reversal? The stars show similar proper motions. Diameter: = 6.49 inches. Separation: = 6.22 miles. Distance (LY): 159 Total luminosity (Suns): 1 li 516 Rating: 4 E Position: yo W 1 measurement. Hipparcos gives discordant distances: 108 light years and 40 light years. C11 at 115x. It lies on the west edge of the open cluster NGC Scheiner 323 DS 4143; HD 36483; SO Rating: 4 E Position: O9.5 III bw ? 1 measurement. C8 at 83x. Faint but rich field

54 Diameter: = 24.0 inches. Separation: = 54.9 miles. Distance (LY): 4,000 Total luminosity (Suns): 750 Scheiner 363 SO Rating: 4 E Position: F2 W ? 1895: measurements. C8 at 104x. Nice arc of bright stars to the SSW. Diameter: = 12.9 inches. Separation: = 13.9 miles. Distance (LY): 300 Total luminosity (Suns): 1.09 Espin 2217 DS 4274 Rating: 4 E Position: W W 1926: measurements

55 C11 at 115x. Distance (LY): 87 Total luminosity (Suns): all 16 HD 38230; SO Rating: 4 E Position: K0 V O! ! W? 1880: measurements. C11 at 115x. Diameter: = 2.40 inches. Separation: = 10.9 miles. Distance (LY): 67 Total luminosity (Suns): 0.41 Scheiner 394 Rating: 4 E Position: W = 326 +? 1991 Y? 1895: measurements. Quadrant reversal? C11 at 115x. Nice field

56 Scheiner 345 Rating: 5 E Position: W ? 1991 W 1895: measurements. Quadrant reversal? C8 at 104x. Distance (LY): 60 Total luminosity (Suns): 0.03 Scheiner 349 Rating: 5 E Position: W ? 1895: measurements. C8 at 104x. Moderately rich field. Diameter: = 6.75 inches. Separation: = 10.5 miles. Distance (LY): 480 Total luminosity (Suns):

57 Scheiner 383 SO Rating: 5 E Position: W = 1991 bw 1895: measurements. C11 at 115x. Very, very rich field. Distance (LY): 570 Total luminosity (Suns): 7.9 Scheiner 397 HD 39094; SO Rating: 5 E Position: G5 W bw 1 measurement. Hipparcos/Tycho data show different distances for these stars (216 and 10 light years); they may be optical. C8 at 104x

58 Difficult STF 799 DS 4452; HD 39114; SO Rating: 4 D Position: W ! 1994 W 1829: measurements. C11 at 634x. I got a snowman on a night of marginal seeing. Diameter: = 4.08 inches. Separation: = 3,802 feet. Distance (LY): 660 Total luminosity (Suns): 81 Tau ur u 192; 29 ur; DS 4398; HD 38656; SO 58465; H IV 21 Rating: 5 D Position: G8 III W ? C ? 1877: measurements. The star belongs to the Ursa Major moving stream and an infra-red source. C 1877: measurements. C8 at 83x. Webb: "Ellison, good test object."

59 Diameter: = 11.8 inches. Separation: = 13.2 miles; C = 16.7 miles. Distance (LY): 213 Total luminosity (Suns): 57.2 Deep Sky Objects Easy Stock 10 Rating: 4 E Position: Type: Oc Class: IV 3 p Magnitude: Dimensions: 25' Cluster population: 15 This cluster is 263 million years old. C11 at 115x. Very large, loose and scattered group of bright stars. I counted 23 stars in my 26 minute field. Distance: 1,240 light years

60 Zone 87 Mini-Catalog Double Star Designation Position Rating Map Component Mag Separation P STF D = 59 + STF D STF D ! STF D 2 C = h D 2 Tau ur D 4 STF E 2 STF E 2 Espin E 1 STF E E 1 Soulie E 1 Espin E 1 Espin E E 3 OSS E 4. G E 4 Weisse E E 3 STF E 3 C D C C D C = = = = = ?

61 Designation Position Rating Map Component Mag Separation P Nu ur E G E ! 0 -! rgelander E = Weisse E ? rgelander E Espin E = 156 =. G E = 132 = STF E Epsilon ur E 1 C = Doolittle E = h E Smart E Scheiner E = STF E = Espin E = Espin E 1 ur E 2 STF E 3 li E 4 Scheiner E 4 Scheiner E 4 Espin E 4 STF 768 rej E 3 all E 4 Scheiner E 4 C C ! 14.3 = ?

62 Designation Position Rating Map Component Mag Separation P Espin E Espin E 3 C = Scheiner E h E 2 h E 2 STF E 2 SI E 1 Scheiner E 2 Smart E 2. G E 1 Scheiner E 2 Scheiner E 2 Scheiner E 2 Scheiner E 4 Scheiner E 4 Espin E 3 Scheiner E 4 Scheiner E 4 eta ur E M 3 Weisse M 2. G M 2 5 ur M 2 C C D C D E ?? !! !! ??!! = 138 = !! 211 +!! ? =

63 Designation Position Rating Map Component Mag Separation P. G M Espin M Scheiner M STF M 3 C h M 2 ur M 1 Scheiner M 2 Lambda ur M 1 Sigma ur M 2 Scheiner M 2 Hipparcos M 3 STF 803 rej M 3 C C D C D CD !! !! !! 257 +? !! Deep Space Specifications Surface Object Position Rating Map Type Mag r Population NGC E 2 Oc/Gn (II 1mn) NGC E 2 Oc (II 2r) Collinder E 1 Oc (IV 3p) 4.2 Stock E 4 Oc (IV 3 p) 15 NGC M 2 Oc (I 3m) NGC M 2 Oc (III 2p) PK M 2 Pn (2)