NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC6902
Basic Information
Location and Magnitude
Right Ascension: 20:24:27.9
Declination: -43:39:11
Constellation: SGR
Visual Magnitude: 10.9
Historic Information
Discoverer: Dunlop
Year of discovery: 1826
Discovery aperture: 9.0
Observational
Summary description: F, cS, R, bM
Sub-type: SBa
Corwin's Notes
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NGC 6902 may also be IC 4948. See IC 4946 for the story.
Steve's Notes
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NGC 6902
30" (10/10/15 - OzSky): at 394x; bright, large, elongated 5:3 NNW-SSE, ~4'x2.5'. There are three distinct zones; a very large, low surface bright halo (spiral arms) that contains several stars, a large brighter core ~60"x45", and a small bright nucleus. Five or six mag 14.5-15.5 stars are superimposed on the large halo, the closest is 45" W of center.
PGC 546866 = 2MASX J20240144-4336032 lies 5.8' NW and appeared as a faint, small glow, elongated nearly 2:1 SSW-NNE, ~20"x12".
18" (8/19/09): fairly faint, fairly large, oval 3:2 NW-SE, 1.8'x1.2'. Contains a large, brighter core with a higher surface bar running along the major axis. IC 4946 = Shapley-Ames 5 lies 21' NNE. Viewed at only 9¡ elevation.