NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC931
Basic Information
Location and Magnitude
Right Ascension: 2:28:14.5
Declination: +31:18:40
Constellation: TRI
Visual Magnitude: 12.8
Historic Information
Discoverer: d'Arrest
Year of discovery: 1865
Discovery aperture: 11.0
Observational
Summary description: F, pL, iR
Sub-type: Sbc
Steve's Notes
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NGC 931
24" (11/24/14): at 200x and 375x; moderately bright and large, thin edge-on 5:1 WSW-ENE, 1.5'x0.3', brighter core, sharp stellar nucleus. LEDA 212995, a very close (physical) companion, is at the north edge just 18" from center. At 375x, it appeared as an extremely faint and small glow, ~6" diameter.
17.5" (12/23/92): fairly faint, moderately large, very elongated 3:1 WSW-ENE, 1.5'x0.5', broad concentration, faint stellar nucleus. Several brighter stars are in the field including a pair of mag 10 stars 6' NW and 10' N. NGC 940 lies 25' NE.