NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC581

 

Basic Information


Location and Magnitude


Right Ascension: 1:33:23.0
Declination: +60:39:30
Constellation: CAS
Visual Magnitude: 7.4

Historic Information


Discoverer: Mechain
Year of discovery: 1781
Discovery aperture: 3.0

Observational


Summary description: Cl, pL, B, R, Ri, st 10…11
Sub-type: III2p

Steve's Notes

===== NGC 581 13.1" (10/20/84): 50-60 stars in cluster, fairly rich. Includes several bright stars in a distinctive triangular wedge shape containing ·131 at the NW edge (7.3/9.9/11.8 at 14" and 28" lined up to the SE) , colorful orange mag 8.4 SAO 11826 (M2-class supergiant) just SE of center, mag 8.9 SAO 11824 1' S of SAO 11826 and mag 8.2 HD 9365 on the SE edge [not a cluster member].