Open clusters (OCs), formed from the same giant molecular cloud, are groups of stars loosely gravitationally bound to each other. So far, more than 1,000 of them have been discovered in the Milky ...

Mid-winter in the Northern Hemisphere is a great time to catch up on some seldom-observed open star clusters. This week’s sextet lies within the boundaries of the constellation Canis Major the ...

114, No. 802 (December 2002), pp. 1382-1388 (7 pages) ABSTRACT BVRI photometry and J2000.0 positions have been obtained for stars in the field of the open cluster Stock 1. The photometry has been ...

ABSTRACT.The likely membership of the planetary nebula Abell 8 (PN G167.0–00.9) in the open cluster Bica 6 is confirmed by CCD spectra, UBV(RI)CUBV(RI)C photometry, and radial velocities for luminous ...