NGC 7023

exposed at 23-24.05.2012

LRGB 35 % size

camera : Moravian G2-8300
lens: 12 " Newton f/2.95 (ASA reducer/corrector 2 " 0.73x)
filter : Baader LRGB
exposure software : MaximDL 4
guiding: Pentax 75SDHC with Mintron MTV-12V6HC-EX and Guidemaster

exposure time :

R: 25 x 3 min
G: 26 x 3,5 min
B: 26 x 4 min
L: 26 x 3 min
total RGB: 5 h 48 min

location : Home observatory Leopoldshöhe
image processing : Fitswork (image addition, Flat correction) / Astroart 5 / Regim Color calibration / PS CS5 (final processing)
spezifics : dust / good sky
picture size 66 %
picture size 100 %