M57 - NGC6720

in Lyra

M57 - NGC 6720

Optic
Celestron C14 / f/11 (f=3910mm)
Mount
Losmandy HGM Titan
Camera
SBIG ST-10E + CFW8 + AO7
Exposure time
LHRGB: 40:12:12:12:12min ( HRGB 2x2 binned )
Processing
Astroart, Photoshop
Date / Time
6th September 2004 / 19:44 - 0:35 UT
Location
Bucklige Welt / Niederoesterreich
Notes
Chip-Temp: -20°C

astrophotos © by manfred schwarz