NGC/IC Project Restoration Effort

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NGC7603

 

Basic Information


Location and Magnitude


Right Ascension: 23:18:56.4
Declination: +0:14:39
Constellation: PSC
Visual Magnitude: 13.2

Historic Information


Discoverer: Marth
Year of discovery: 1864
Discovery aperture: 48.0

Observational


Summary description: F, vS, stellar
Sub-type: Sb/P

Steve's Notes

===== NGC 7603 48" (10/29/16): at 610x; bright, moderately large, round, sharply concentrated with a very bright core and an intensely bright stellar nucleus! The roundish halo gradually fades out around 1.0' diameter. The beginning of a tidal arm is occasionally visible on the south side, extending a short distance to the southeast, but not reaching NGC 7603B. The apparent companion, resides far in the background at a redshift distance of ~740 million ly. It appeared fairly faint, fairly small, round, 0.3' diameter, very small brighter core, stellar nucleus. A hint of the apparent bridge from NGC 7603 is just visible close west, but was not seen as connected. 48" (10/22/11): at 375x, this Seyfert galaxy is unusually sharply concentrated and displayed an extremely bright stellar nucleus surrounded by an intensely bright, 20" core with a much fainter outer halo extending 1.3'x1.0'. Forms a close pair with NGC 7603B = PGC 71041 just 1' SE. At 610x, the small companion is just outside the halo of NGC 7603 and appeared fairly faint, fairly small, round, 20" diameter. 24" (9/1/16): at 220x; bright, small, round, contains a very small unusually bright core that increases to an extremely bright stellar nucleus (Seyfert galaxy)! Forms a close (line of sight) pair with NGC 7603B 1.0' SE. The companion appeared extremely to very faint, extremely small, only ~6" diameter, required averted to see (V = 15.9, B = 16.7). 17.5" (8/1/87): moderately bright, fairly small, oval ~N-S, sharp concentration, small bright core, stellar nucleus. Forms a pair with NGC 7589 8' WNW. Located 5.1' SW of a mag 9.5 star. 13" (8/11/85): faint, small, round, sharp concentration, stellar nucleus. Located ~5' W of a mag 9 star.