| Astronomy targets for the month of July 2003:
******* 7/16/2003, 10:20 PM *******
Polaris
The North Star
SAO 308
GSC 4628:237, HIP 11767, PPM 431, HD 8890, B+88 8
Flamsteed-Bayer: 1-Alpha Ursae Minoris
Spectral: F7:Ib-IIv SB
**** Data from Hipparcos Catalog ****
Proper motion (mas/yr): RA = 44.22, Dec = -11.74
Magnitudes Bt: 2.756, Vt: 2.067
Parallax: 7.560 mas, 132.2751 pc
Distance: 431.42 light-years, 27283753.74 astronomical units
Magnitude: 1.97
RA: 02h 35m 21.458s Dec: +89°16'27.308"
RA: 02h 31m 49.084s Dec: +89°15'50.794" (Epoch 2000)
Azm: 00°20'05" Alt: +39°54'35"
Always above horizon. Transit: 08:58
Position error: 0.60 mas
Note: Telescope reveals an unrelated 8 mag. star.
******* 7/16/2003, 10:20 PM *******
Star
Arcturus
SAO 100944
GSC 1472:1436, HIP 69673, PPM 130442, HD 124897, B+19 2777
Flamsteed-Bayer: 16-Alpha Bootis
Spectral: K2IIIp
**** Data from Hipparcos Catalog ****
Proper motion (mas/yr): RA = -1093.45, Dec = -1999.40
Magnitudes Bt: 1.629, Vt: 0.286
Parallax: 88.850 mas, 11.2549 pc
Distance: 36.71 light-years, 2321498.93 astronomical units
Magnitude: -0.05
RA: 14h 15m 49.282s Dec: +19°10'08.940"
RA: 14h 15m 39.672s Dec: +19°10'56.677" (Epoch 2000)
Azm: 233°39'02" Alt: +59°12'00"
Rise: 13:25 Transit: 20:37 Set: 03:52
Position error: 1.01 mas
Note: Orange giant
******* 7/16/2003, 10:24 PM *******
Star
Deneb
SAO 49941
GSC 3574:3347, HIP 102098, PPM 60323, HD 197345, B+44 3541
Flamsteed-Bayer: 50-Alpha Cygni
Spectral: A2Ia
**** Data from Hipparcos Catalog ****
Proper motion (mas/yr): RA = 1.56, Dec = 1.55
Magnitudes Bt: 1.471, Vt: 1.343
Parallax: 1.010 mas, 990.0990 pc
Distance: 3229.28 light-years, 204222949.14 astronomical units
Magnitude: 1.25
RA: 20h 41m 34.215s Dec: +45°17'26.158"
RA: 20h 41m 25.915s Dec: +45°16'49.217" (Epoch 2000)
Azm: 60°02'54" Alt: +40°28'27"
Rise: 16:55 Transit: 03:05 Set: 13:12
Position error: 0.67 mas
Note: Supergiant
******* 7/16/2003, 10:24 PM *******
Star
Vega
SAO 67174
GSC 3105:2070, HIP 91262
Flamsteed-Bayer: 3-Alpha Lyrae
Spectral: A0Vvar
**** Data from Hipparcos Catalog ****
Proper motion (mas/yr): RA = 201.02, Dec = 287.46
Magnitudes Bt: 0.000, Vt: 0.000
Parallax: 128.930 mas, 7.7561 pc
Distance: 25.30 light-years, 1599823.07 astronomical units
Magnitude: 0.03
RA: 18h 37m 04.563s Dec: +38°47'12.559"
RA: 18h 36m 56.336s Dec: +38°47'01.290" (Epoch 2000)
Azm: 80°48'07" Alt: +60°36'57"
Rise: 15:59 Transit: 01:01 Set: 09:59
Position error: 0.67 mas
Note: Blue white star
******* 7/16/2003, 10:26 PM *******
Star
Albireo
The Scout Double
SAO 87301
GSC 2133:2964, HIP 95947, PPM 109139, HD 183912, B+27 3410
Flamsteed-Bayer: 6-Beta1 Cygni
Spectral: K3II+...
**** Data from Hipparcos Catalog ****
Proper motion (mas/yr): RA = -7.09, Dec = -5.63
Magnitudes Bt: 4.478, Vt: 3.200
Parallax: 8.460 mas, 118.2033 pc
Distance: 385.53 light-years, 24381226.45 astronomical units
Magnitude: 3.05
RA: 19h 30m 52.659s Dec: +27°57'58.695"
RA: 19h 30m 43.281s Dec: +27°57'34.852" (Epoch 2000)
Azm: 90°12'46" Alt: +46°22'28"
Rise: 18:00 Transit: 01:55 Set: 09:46
Position error: 0.87 mas
Notes: Contrasting colors of orange and blue-green. Sep = 34.4"
******* 7/16/2003, 10:29 PM *******
Star
Izar
SAO 83500
GSC 2019:1251, HIP 72105, B+27 2417
Flamsteed-Bayer: 36-Epsilon Bootis
Spectral: A0
**** Data from Hipparcos Catalog ****
Proper motion (mas/yr): RA = -50.65, Dec = 20.00
Magnitudes Bt: 3.562, Vt: 2.470
Parallax: 15.550 mas, 64.3087 pc
Distance: 209.75 light-years, 13264641.42 astronomical units
Magnitude: 2.35
RA: 14h 45m 08.432s Dec: +27°03'46.098"
RA: 14h 44m 59.218s Dec: +27°04'27.201" (Epoch 2000)
Azm: 238°13'22" Alt: +68°08'42"
Rise: 13:20 Transit: 21:06 Set: 04:56
Position error: 0.77 mas
Notes: Red giant star with a blue-green mag 4.9 companion. Sep = 2.8". Difficult to split.
******* 7/16/2003, 11:27 PM *******
Great Cluster in Hercules
Hercules Globular Cluster
The Wall
M13
NGC 6205
Other description: Globular cluster highly resolved.
Constellation: Her
Dreyer description: Very remarkable! Globular cluster, extremely bright, very rich in stars, very gradually extremely compressed middle, stars of magnitude 11 and fainter; = M13.
Magnitude: 5.9
RA: 16h 41m 50.3s Dec: +36°27'44"
RA: 16h 41m 42.0s Dec: +36°28'00" (Epoch 2000)
Azm: 231°31'20" Alt: +83°38'46"
Rise: 14:22 Transit: 23:02 Set: 07:47
Size:16.6'
Note: Best globular cluster in the northern skies. Discovered by halley in 1714. Go SW azimuth, then go up past Arcturus, +83 deg. alt.
******* 7/16/2003, 11:27 PM *******
Globular Cluster
M5
NGC 5904
Other description: Globular cluster highly resolved.
Constellation: Ser
Dreyer description: Very remarkable!, globular cluster, very bright, large, extremely compressed middle, stars of magnitude 11 to 15; = M5.
Magnitude: 5.8
RA: 15h 18m 46.6s Dec: +02°04'18"
RA: 15h 18m 36.0s Dec: +02°05'00" (Epoch 2000)
Azm: 219°21'33" Alt: +44°25'59"
Rise: 15:30 Transit: 21:39 Set: 03:53
Size:17.4'
Note: In constellation Serpens which is high in the SW. Serpens is immediately W of Arturus/Bootes. Follow Bootes' left leg to M5.
Bode's Nebula
M81
NGC 3031
Other description: Spiral galaxy structure.
Constellation: UMa
Dreyer description: Remarkable! Extremely bright, extremely large, extended 156°, gradually abruptly very much brighter middle bright nucleus; = M81.
Magnitude: 6.9
RA: 09h 55m 49.7s Dec: +69°03'18"
RA: 09h 55m 36.0s Dec: +69°04'00" (Epoch 2000)
Azm: 336°24'04" Alt: +31°40'37"
Always above horizon. Transit: 16:17
Size:20.0' x 9.0'
Position Angle: 156.0
From M82:
Angular separation: 00°37'01"
Position angle: +181°40'
Notes: Located in Ursa Major. Spiral Galaxy. AKA Bode's Nebula. Very close to M82.
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