NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC997
Basic Information
Location and Magnitude
Right Ascension: 2:37:14.4
Declination: +7:18:22
Constellation: CET
Visual Magnitude: 13.4
Historic Information
Discoverer: Marth
Year of discovery: 1863
Discovery aperture: 48.0
Observational
Summary description: F, S
Sub-type: E+C
Corwin's Notes
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NGC 997. See NGC 998.
Steve's Notes
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NGC 997
24" (12/28/16): at 375x; moderately bright, fairly small, round, 30" diameter, small bright core, stellar nucleus, high surface brightness. Mag 9.5 HD 16303 is 1.4' SW. Forms a pair with NGC 998 1.8' NNE. Brightest in a group (redshift-based distance ~250 million l.y.) with CGCG 414-028 8' N and UGC 2092, an extreme superthin, lies 10.6' W.
CGCG 414-028 appeared faint, very small, round, 12" diameter. I was surprised the visibility is comparable to NGC 998.
UGC 2092: extremely faint, fairly small, elongated ~5:2 SW-NE, ~20"x8", very low surface brightness! As the axial ratio of this bulgeless superthin is ~12:1, I only picked up the slightly brighter central section.
17.5" (10/8/94): faint, small, round, 40" diameter, weak concentration, small ill-defined core. Located 1.4' NE of mag 9 SAO 110644! Forms a close pair with NGC 998 1.8' NNE.