NGC7635 - Bubble Nebula & M52 & NGC7538

in Cassiopeia

NGC 7635 & M52 & NGC 7538

Optic
Pentax 100 SDUF f/4 (f=400mm)
Mount
Losmandy G11
Camera
SBIG ST-10XE + CFW8 + AO7
Exposure time
LRGB: 73min
Processing
CCDSoft, Photoshop
Date / Time
3rd September 2003, 20:20-00:10 UT
Location
Bucklige Welt / Niederoesterreich
Notes
Weather: good seeing, Chip-Temp: -25°C

astrophotos © by manfred schwarz