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:

http://www.greggsastronomy.com/IMAGES/pm-133-LRGB.jpg
1.3X crop:
http://www.greggsastronomy.com/IMAGES/pm-133-LRGBcrop.jpg

LRGB, 6 hours total exposure from Dark Skies New Mexico

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Clear skies,

Gregg
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http://www.greggsastronomy.com/