About this Image
M100 is a classical face-on galaxy, it is showing very well defined spiral arms and displays a very dynamic appearance, appealing by the red and blue knots tracing the arms.
The red knots are apparently diffuse gaseous nebulae in which star formation is just taking place, and which are excited to shine by its very hot young stars.
The blue regions represent young stellar populations.
24 " cassegrain in secondary focus at f/8 (Capella Observatory)
|Mount||K140 Knopf GEM|
|Camera||SBIG STL-11000M at -25C|
|Date||Apr 25 - May 25, 2009|
|Sky Conditions||raw FWHM 1.3"|
|Exposure||L:R:G:B = 330:60:75:75 minutes (15-minute sub-exposures); remotely aquired|
|Credit||Stefan Binnewies, Josef Poepsel, Rainer Sparenberg, Johannes Schedler|
Maxim DL 4.5;