NGC/IC Project Restoration Effort

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NGC531

 

Basic Information


Location and Magnitude


Right Ascension: 1:26:18.8
Declination: +34:45:15
Constellation: AND
Visual Magnitude: 13.8

Historic Information


Discoverer: Mitchell
Year of discovery: 1855
Discovery aperture: 72.0

Observational


Summary description: F, S, R
Sub-type: SB0-a

Corwin's Notes

===== NGC 531 and NGC 542 are positively identified by LdR's sketch and offsets from NGC 536. However, Dreyer, apparently thinking that NGC 529 was the bright object reobserved by LdR, used an incorrect position for the reference object. So, the positions he gives in LdR's 1880 paper, and in the NGC, are off by about 40 arcsec.

Steve's Notes

===== NGC 531 17.5" (8/31/86): faint, fairly small, oval SW-NE, fairly small. A mag 12 star is just off the NE end 1.0' from center. Member of the NGC 529-536 group = HCG 10 with NGC 536 3.1' SSE.