PM 1-333

Gregg Ruppel

Hi all

PM 1-333 is a small planetary nebula that lies about a half a degree northwest of the bright variable star Mu Cephei.  Bright is an understatement when it comes to Mu Cephei; it is a red giant about 100,000 times more luminous than the sun.  It is sometimes referred to as Hershel's Garnet Star  (S&T, November 2020, p. 56), although it appears more of a golden yellow in this image:
1.3X crop:

LRGB, 6 hours total exposure from Dark Skies New Mexico

Clear skies,

Visit my astronomy & astrophotography site

Join to automatically receive all group messages.