M51 "Whirlpoolgalaxy" widefield in Canes Venatici
full resolution 2184 x 1472 Pixel
click on the Image for full resolution 2184 x 1472 Pixel
A photometric study of M 51 system
 nur Luminanz Field 53' x 35'
100% crops
Date:2009
Location:AAS Gahberg
ASA N10 @950mm St10xme CFW10 for Luminance
4" Apo Televue NP101@540mm SXVH9 CFW10 for RGB
Simultaneous on Gemini G42 Mount
Filter:ASA L Baader, Televue RGB Astrodon
Comments:Maxim, Astroart, PSP CS2, Fits Liberator
L 81 x
300
 s 405 m 6,75 h
weight
R 26 x
290
 s 126 m 2,094 h
0,99
 %
G 25 x
290
 s 121 m 2,014 h
0,92
 %
B 28 x
290
 s 135 m 2,256 h
1,00
 %
total 160 frames 13,11 h
Hier die Luminanzdaten nur Flat, Dark, Sigma und Unscharfmaske in Photoshop