Astronomers have performed a multiwavelength study of nine open cluster candidates. As a result, they found that all of them ...

This week’s first small-telescope target is open cluster NGC 2421 in Puppis. You’ll find it 5.2° northwest of magnitude 3.3 Xi (ξ) Puppis. It shines at magnitude 8.3 and measures 8′ across.

Amateur astronomers observe this open cluster mostly during Messier marathons in March or April. They note it, check it off their list, and move on. In my opinion, it deserves better treatment ...

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 ...

NGC 6530: It is a young open cluster located about 4,300 light years from the Sun in the southern constellation of ...

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 ...