Sh2-187 "the attacking eagle"
exposed at 05.09.2011
camera :Atik 383L+
lens: 12 " Newton f/4 (Baader RCC 1 corrector)
filter : Baader LRGB
exposure software : Astroart 5.0
guiding: OAG with Mintron MTV-12V6HC-EX and Guidemaster
exposure time :
LRGB
L : 16 x 5 min ( 1 hours and 20 min 2x2 )
R : 10 x 5 min ( 50 min / 2x2 bin )
G : 10 x 5 min ( 50 min / 2x2 bin )
B : 11 x 5 min ( 55 min / 2x2 bin )
total: 3 hours and 50 min
location : Home observatory Leopoldshöhe
image processing : Astroart 5 (stacking/Dark/Flat) / Regim (color calibration and Background processing) / PS CS3 (final processing)
spezifics : sometimes clouds