M45 (vdB20 - 23) The Pleiades or Subaru; Taurus
Astro-Physics 155EDF f/7 refractor
STL-11000M; SBIG STL
Total Exposure 5+ Hours; (LB)RGB (60,60):60:60:70 min; unbinned.
September 28, 2005; Inkom,ID
Comments: This is likely the most famous cluster in the heavens. Also called the Seven Sisters, most people can see only six stars with the unaided eye, but reports of up to 18 visible stars have been documented. Many people don't realize that M45 also contains a nebula. This nebula is of the reflection type (blue) with only a slight emission component (pink). This star cluster is close, by cosmic standards, being only 407 light years away.
A different view may be seen here.