NGC/IC Project Restoration Effort

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NGC443

 

Basic Information


Location and Magnitude


Right Ascension: 1:15:7.5
Declination: +33:22:40
Constellation: PSC
Visual Magnitude: 13.1

Historic Information


Discoverer: d'Arrest
Year of discovery: 1861
Discovery aperture: 11.0

Observational


Summary description: F, S, R, * 15 p 8s on par.
Sub-type: S

Corwin's Notes

===== NGC 443 = IC 1653. D'Arrest has a single observation of the galaxy from the night of 8 October 1861. He published it in AN 1500, and again in his big monograph. The declination is 0.5 arcmin greater in the monograph, but it is still nine arcmin too small. I suspect a digit error in the arcminute 10's place. With that, the position would be within an arcmin or so of the true position. D'A's note about the 15th magnitude star 8.3 seconds of time preceding the galaxy is correct -- the actual distance is 7.9 seconds. Javelle rediscovered the galaxy over 40 years later in 1903. His micrometric observation, re-reduced with respect to a modern position for his comparison star, is within a couple of arcseconds of the modern positions.

Steve's Notes

===== NGC 443 17.5" (9/19/87): fairly faint, small, round, bright core, stellar nucleus. Located 20' NNW of NGC 447. Identified as IC 1653 in the UGC and CGCG.