fbpx

Lesson Tag: Cetus

The Skull Nebula, NGC 246

Target Type R. A. Dec. Constellation Magnitude Size Skull Nebula Planetary Nebula 00h 47m 04s -11° 52′ 22″ Cetus +10.4 1.0×3.5 arcmin Overview We stay with Cetus for our third challenge of the month: the Skull Nebula, NGC 246 (also, Caldwell 56). This planetary nebula was first observed by William Herschel in November 1785. What …

The Skull Nebula, NGC 246 Read More »

M77, Spiral Galaxy

Target Type R. A. Dec. Constellation Magnitude Size M77 Spiral Galaxy 02h 42m 41s -00° 00′ 48″ Cetus +9.0 6.1×5.6 arcmins Overview The 77th item in Messier’s catalog is a barred spiral galaxy in the constellation of Cetus, the whale. The galaxy was discovered by Pierre Méchain in 1780, and added to Messier’s list that …

M77, Spiral Galaxy Read More »

Processing...