Zone 255, Master MapNormal View

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α

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εγκ γ1

ο

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ξθ β

µ

ν2

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ζFurud

Phact

Wazn

M79

Caelum

Columba

Canis Major

Eridanu

Lepus

Zone Master, Normal View, 10 deg FOV

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Zone 255, Map 1Normal Image

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Howe 12

Cordoba 29

Hipparcos 707

CaelumColumba

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

NGC 1744

Zone 255, Map 1Mirror Image

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NGC 1744

Howe 12

Cordoba 29

Hipparcos 707

CaelumColumba

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

Zone 255, Map 2Normal Image

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ο

h3718

h3735

Hussey 1389

h3757

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

Zone 255, Map 2Mirror Image

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h3718

h3735

Hussey 1389

h3757

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

Zone 255, Map 3Normal Image

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ν2

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h3776

Bur 322

h3788

Innes 1614

h3811Bos 92

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

Zone 255, Map 3Mirror Image

05h 30m 05h 35m 05h 40m 05h 45m 05h 50m 05h 55m 06h 00m

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ν2

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h3776

Bur 322

h3788

Innes 1614

h3811Bos 92

Sky charts generated by TheSky Software; used by permission of Software Bisque Inc.

- 1 -

Zone 255

1 Reference Star, 14 Double Stars, 1 Galaxy B Bos 92 ....................................................... 10 Bur 322...................................................... 10

C Cordoba 29.................................................. 2

H h3718........................................................... 5 h3735........................................................... 4 h3757........................................................... 6 h3760........................................................... 6

h3776........................................................... 8 h3788........................................................... 8 h3811........................................................... 9 Hipparcos 707 ............................................. 3 Howe 12 ...................................................... 2 Hussey 1389................................................ 7

I Innes 1614................................................... 9

N NGC 1744 ................................................... 4

Zone 255

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Zone 255, Map 1

Double Stars

Easy Cordoba 29 Rating: 3 E ADS 3892 Position: 0518-2729 Magnitude Separation PA Year Spectra Colors A 9.28 — — — K3 V Y B 9.30 4.1 + 94 + 1991 W Notes:

1901: 3.5 @ 93. 9 measurements. Observations:

C11 at 115x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 13.7 inches. Separation: AB = 1.09 miles.

Distance (LY): 171 Total luminosity (Suns): 0.879

Moderate Howe 12 Rating: 5 M ADS 3850 Position: 0516-2931 Magnitude Separation PA Year Spectra Colors A 8.77 — — — G0 IV W B 9.55 2.3 - 234 + 1991 W

Zone 255

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Notes: 1877: 2.6 @ 232. 13 measurements.

Observations:

C8 at 104x. Hipparcos 707 Rating: 5 M HD 35208; SAO 170356 Position: 0522-2809 Magnitude Separation PA Year Spectra Colors A 9.30 — — — F5 V W B 11.79 10.7 142 1991 ? Notes:

1 measurement. Observations:

C11 at 115x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 7.00 inches. Separation: AB = 7.43 miles.

Distance (LY): 445 Total luminosity (Suns): 3.25

Zone 255

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Deep Sky Objects

Difficult NGC 1744 Rating: 5 D Other Names: PGC 16517 Position: 0500-2601 Type: Gal Class: SB(s)d Magnitude: 12.3 Surface brightness: 13.9 Dimensions: 7' x 3.3' PA: 168 Observations:

C8 at 65x. It is inside an equilateral triangle of 10m stars. It has very low surface brightness. Steve Coe writes, "I went over the field twice before I realized, 'that's it.' This is Tirion's Joke for Winter; in the Summer his joke is NGC 6380 in Scorpius." (Tirion is Wil Tirion, creator of numerous high-quality star charts, and collaborator on Uranometria 2000.)

Distance (LY): 25,000,000 Total luminosity (Suns): 600,000,000 Radial velocity (km/sec): +748

Zone 255, Map 2

Double Stars

Easy h3735 Rating: 3 E HD 34088; SAO 195662 Position: 0514-3154 Magnitude Separation PA Year Spectra Colors A 7.50 — — — A2 V W B 7.76 7.2 + 149 - 1991 oW

Zone 255

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Notes: 1835: 6.0 @ 153. 25 measurements. The stars have different proper motions.

Observations:

C8 at 104x. A nice pair! The field is bleak, but probably due to the atmospheric absorption that goes along with low southern declinations. Scale model (in which the Sun is the size of a baseball): Diameter: A = 4.56 inches. Separation: AB = 2.90 miles.

Distance (LY): 258 Total luminosity (Suns): 9.2 h3718 Rating: 4 E HD 32570; SAO 195516 Position: 0503-3309 Magnitude Separation PA Year Spectra Colors A 8.99 — — — F5 W B 9.60 31.7 + 169 + 1991 W Notes:

1836: 30.0 @ 166. 10 measurements. The stars share common proper motion.

Observations:

C8 at 104x. Faint and all alone.… Scale model (in which the Sun is the size of a baseball): Diameter: A = 13.8 inches. Separation: AB = 4.50 miles.

Distance (LY): 91 Total luminosity (Suns): 0.25

Zone 255

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h3757 Rating: 4 E HD 35416; SAO 195796 Position: 0523-3145 Magnitude Separation PA Year Spectra Colors A 7.53 — — — F3 V W B 10.51 15.1 - 315 + 1933 ? Notes:

1835: 18.0 @ 273. 4 measurements. Hipparcos/Tycho mission data show different distances for these stars (218 and 355

light years); they may be optical. Observations:

C8 at 104x. It lies just SE of a flat triangle of three 9m stars. h3760 Rating: 4 E SAO 195843 Position: 0526-3521 Magnitude Separation PA Year Spectra Colors A 7.26 — — — F5 III yW B 7.76 7.4 + 222 + 1991 K0 IV oW C 10.48 27.4 + 285 + 1963 ? Notes:

AB 1835: 7.3 @ 221. 21 measurements. AC 1836: 20.0 @ 270. 11 measurements. Hipparcos shows the C star to be at a

distance of 143 light years. The stars share common proper motion.

Observations:

C8 at 104x. It forms the SE vertex of triangle with SAO 195835 (7.5m, G5) to the N and K2 SAO 195818 (7.7m) to the NW. Scale model (in which the Sun is the size of a baseball): Diameter: A = 31 inches; B = 75 inches. Separation: AB = 8.78 miles; AC = 32.5 miles.

Zone 255

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Distance (LY): 760 Total luminosity (Suns): 76

Difficult

Hussey 1389 Rating: 5 D HD 34475; SAO 195700 Position: 0516-3057 Magnitude Separation PA Year Spectra Colors A 8.65 — — — G0 IV W B 9.90 1.0 = 124 - 1991 W Notes:

1911: 1.0 @ 130. 13 measurements. Observations:

C8 at 697x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 10.8 inches. Separation: AB = 3,090 feet.

Distance (LY): 375 Total luminosity (Suns): 5

Zone 255

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Zone 255, Map 3

Double Stars

Easy h3788 Rating: 3 E ADS 4281; HD 37987; SAO 170697 Position: 0541-2621 Magnitude Separation PA Year Spectra Colors A 7.54 — — — F5 V W B 9.27 25.8 + 155 + 1991 B Notes:

1835: 25.0 @ 151. 9 measurements. The stars share a large common proper motion.

Observations:

C8 at 104x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 8.10 inches. Separation: AB = 9.18 miles.

Distance (LY): 228 Total luminosity (Suns): 4.9 h3776 Rating: 4 E Position: 0537-2726 Magnitude Separation PA Year Spectra Colors A 9.93 — — — W B 10.92 25.2 - 164 + 1991 W? Notes:

1837: 30.0 @ 162. 6 measurements.

Zone 255

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Observations: C11 at 115x.

Distance (LY): 187 Total luminosity (Suns): 0.411

Innes 1614 Rating: 5 E SAO 170994 Position: 0554-2553 Magnitude Separation PA Year Spectra Colors A 9.69 — — — F5 W B 10.01 30.7 + 92 = 1991 F0 W? Notes:

1909: 30.0 @ 92. 7 measurements. The stars have different proper motions.

Observations:

C8 at 104x. Very faint field. Scale model (in which the Sun is the size of a baseball): Diameter: A = 14.3 inches; B = 11.7 inches. Separation: AB = 8.95 miles.

Distance (LY): 187 Total luminosity (Suns): 0.7 h3811 Rating: 5 E ADS 4504; HD 39871; SAO 170992 Position: 0554-2532 Magnitude Separation PA Year Spectra Colors A 8.50 — — — A9 V W B 10.82 17.8 - 264 + 1991 W Notes:

1835: 20.0 @ 245. 4 measurements. Hipparcos/Tycho mission data show different distances for these stars (900 and 193

light years); they may be optical.

Zone 255

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There is a 13.5m companion at 12.9 @ 23 (1987). Observations:

C8 at 104x.

Moderate Bur 322 Rating: 4 M ADS 4258 Position: 0540-2509 Magnitude Separation PA Year Spectra Colors A 8.11 — — — ApSi W B 9.87 2.5 - 105 + 1991 W Notes:

1877: 2.6 @ 104. 14 measurements. Observations:

C11 at 193x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 7.62 inches. Separation: AB = 4.13 miles.

Distance (LY): 1,060 Total luminosity (Suns): 60 Bos 92 Rating: 5 M ADS 4513; HD 39960; SAO 171004 Position: 0555-2527 Magnitude Separation PA Year Spectra Colors A 8.61 — — — G1/2V W B 11.50 8.1 + 312 + 1986 ? C 11.90 33.0 + 121 - 1986 ? D 12.70 1.4 + 128 + 1965 No

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Notes: AB 1926: 7.3 @ 310. 4 measurements. AC 1926: 29.7 @ 130. 3 measurements. AD 1926: 0.9 @ 127. 2 measurements.

Observations:

C11 at 115x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 3.30 inches. Separation: AB = 2.19 miles; AC = 8.91 miles; AD = 1,996 feet.

Distance (LY): 173 Total luminosity (Suns): 0.961

Zone 255

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Zone 255 Mini-Catalog Double Stars Designation Position Rating Map Component Mag Separation PA

h3735 0514-3154 3E 2 A B

7.507.76

— 7.2 +

— 149 -

Cordoba 29 0518-2729 3E 1 A B

9.289.30

— 4.1 +

— 94 +

h3788 0541-2621 3E 3 A B

7.549.27

— 25.8 +

— 155 +

h3718 0503-3309 4E 2 A B

8.999.60

— 31.7 +

— 169 +

h3757 0523-3145 4E 2 A B

7.5310.51

— 15.1 -

— 315 +

h3760 0526-3521 4E 2

A B C

7.267.76

10.48

— 7.4 + 27.4 +

— 222 + 27.4 +

h3776 0537-2726 4E 3 A B

9.9310.92

— 25.2 -

— 164 +

Innes 1614 0554-2553 5E 3 A B

9.6910.01

— 30.7 +

— 92 =

h3811 0554-2532 5E 3 A B

8.5010.82

— 17.8 -

— 264 +

Bur 322 0540-2509 4M 3 A B

8.119.87

— 2.5 -

— 105 +

Howe 12 0516-2931 5M 1 A B

8.779.55

— 2.3 -

— 234 +

Hipparcos 707 0522-2809 5M 1 A B

9.3011.79

— 10.7

— 142

Bos 92 0555-2527 5M 3

A B C D

8.6111.5011.9012.70

— 8.1 + 33.0 + 1.4 +

— 312 + 33.0 + 1.4 +

Hussey 1389 0516-3057 5D 2 A B

8.659.90

— 1.0 =

— 124 -

Deep Space Objects

Specifications

Object Position Rating Map

Type

Mag Surface

Br Population NGC 1744 0500-2601 5D 1 Gal (SB(s)d) 12.3 13.9