| Type | Galaxy |
|---|---|
| Magnitude | 10.2 |
| Size | 4.7' x 1.9' @ 128° |
| Right Ascension | 15h 6' 29.5" (2000) |
| Declination | 55° 45' 48" N |
| Constellation | Draco |
| Description | vB, cL, pME146, gbM |
| Classification | S0 3 HII/LINER |
Andrew Cooper
Apr 19, 2012 Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 175x
Seeing: 7 Transparency: 7 Moon: 0%
Bright, elongated 4'x2' northwest-southeast, a bright central region makes this an easily spotted object that Messier may have found (M102?)
Andrew Cooper
Jul 3, 2003 Whipple Observatory, Santa Rita Mtns., AZ (map)
46cm f/4.5 Deep Violet
The most probable identity for M102, bright, compact, very obvious against the stellar background even at low power, modestly elongated NW-SE, core is not apparent, just a general brightening to the center
Rev. T.W. Webb
May 19, 1885 Hardwick, Herefordshire, England (map)
H., very bright. D'A. 90" x 30". Not Gaseous.― Celestial Objects for Common Telescopes, T. W. Webb, 1917
William Herschel
May 5, 1788 Observatory House, Slough (map)
Very bright. Considerably large. Extended. Following 2 stars.― SEDS website
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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