NGC/IC Project Restoration Effort

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NGC5638

 

Basic Information


Location and Magnitude


Right Ascension: 14:29:40.4
Declination: +3:14:0
Constellation: VIR
Visual Magnitude: 11.2

Historic Information


Discoverer: Herschel W.
Year of discovery: 1786
Discovery aperture: 18.7

Observational


Summary description: cB, pL, R, sf of 2
Sub-type: E1

Steve's Notes

===== NGC 5638 24" (6/27/14): bright, large, very slightly elongated NNW-SSE, 1.8'x1.5'. Contains three very distinct brightness zones. Sharply concentrated with a very bright core containing an intensely bright, quasi-stellar nucleus. The halo is fairly uniform, only dimming at the edges. Brightest in a trio with NGC 5636 2' NNW and much fainter UGC 9310 5' ESE. UGC 9310 appeared very faint, fairly small, elongated NNW-SSE, ~0.6'x0.25', surprisingly low surface brightness. Extends generally north of a mag 13 star (double with a mag 14.7 star 20" SW) at the south end, which detracts from viewing. Another mag 13 star (very close double) is 1.3' N.") 17.5" (6/8/91): bright, moderately large, slightly elongated 5:4 NW-SE, 1.5'x1.2', increases to a very small very bright core containing a stellar nucleus. Forms an unusual pair with low surface brightness NGC 5636 1.9' NNW. UGC 9277 lies 18' WNW.