NGC/IC Project Restoration Effort

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NGC7550

 

Basic Information


Location and Magnitude


Right Ascension: 23:15:16.0
Declination: +18:57:39
Constellation: PEG
Visual Magnitude: 12.2

Historic Information


Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational


Summary description: cF, S, R
Sub-type: E-S0

Corwin's Notes

===== NGC 7550. See NGC 7553 and NGC 7571.

Steve's Notes

===== NGC 7550 24" (12/28/13): at 282x appeared fairly bright, moderately large, slightly elongated, 0.9'x0.75', strongly concentrated with a very bright core that increases to a sharp stellar nucleus. Brightest in the HCG 93 quintet with NGC 7547 3.1' WNW and NGC 7549 4.9' N. 24" (12/1/13): at 375x appeared moderately bright to fairly bright, moderately large, irregularly round, 1.0'x0.8', strongly concentrated with a bright core that increases to a very bright small nucleus. Occasionally, a bright stellar nuclear pip was visible within the small nucleus. Brightest in the HCG 93 quintet. 18" (9/3/05): moderately bright, fairly small, round, slightly elongated, 0.8'x0.7', fairly strong concentration, small bright core, stellar nucleus. 18" (8/27/05): fairly faint, fairly small, slightly elongated, 0.8'x0.6', gradually increases to a small, bright core and stellar nucleus. HCG 94 lies 32' SE! 17.5" (9/7/96): moderately bright, fairly small, halo elongated 4:3 N-S, 1.5'x1.2', sharply concentrated with a round, bright core and nearly stellar nucleus. Brightest in the HCG 93 quintet. HCG 94 lies only 32' SE! 17.5" (9/23/89): brightest in a group of 11 NGC galaxies and HCG 93. Moderately bright, fairly small, slightly elongated ~N-S, small bright core, stellar nucleus. Forms a triple system with NGC 7549 4.8' N and NGC 7547 3.0' W. Also nearby is NGC 7558 5.9' ENE.