CROPPED IMAGE

Nebula M17 in the light of Ionised Sulphur, Hydrogen and Oxygen

** Using new low reflection Astronomik Ha SII OIII filter set

AP152 F7.5 Starfire APO refractor with 4" field flattener
FLI ProLine11002 CCD & CFW-2-7
SII Ha OIII 45min 75 60 min (15min subs all bin 1X1) Astronomik filters
-35C chip temp, darks and flats (AstroHandy LightRing used for flats)
12MPPS download speed = 1.5sec/full frame download at bin 1X1.
1.6"/pix
Guide Camera: Starlightxpress SXVH9

Comments:
Taken from Bob and Pats farm
Windy and poor seeing

http://www.pbase.com/strongmanmike2002/image/107700957/original

Some links to equipment used to take this image:

Finger Lakes Instrumentation (FLI) CCD cameras and equipment:
http://www.flicamera.com/

StarlightXpress CCD cameras and equipment
http://www.starlight-xpress.co.uk/

Astro-Elecronic FS2 scope GOTO controller:
http://www.astro-electronic.de/

Gerd Neumann/Astronomik filters:
http://www.gerd.neumann.net/

http://www.astronomik.com/

MSB Software & Astroart 4
http://www.msb-astroart.com/

STAR Atlas:PRO planetarium software
http://www.skylab.com.au/

AstroHandy Accessories
http://www.pbase.com/strongmanmike2002/astrohandy_lightring

http://www.astrohandy.com