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M20 - Trifid nebula
My first attempt from a DSC a catalogue of equipment errors led to far less data being collected than planned so I didn't manage to collect any Oxygen III with is normally used on M20. RGB is mapped (HA,SII,HA/SO 40/60) HA 8 x 600s, S II 4 x 600s

M20 - Trifid nebula

My first attempt from a DSC a catalogue of equipment errors led to far less data being collected than planned so I didn't manage to collect any Oxygen III with is normally used on M20. RGB is mapped (HA,SII,HA/SO 40/60) HA 8 x 600s, S II 4 x 600s

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File information
Filename:m20_HAII_SII_600-mkii.jpg
Album name:Ivor / Messier Objects
Rating (1 votes):44444
Image date, time and location:11th August 23:00 CET Col de Joly, les Contamines, France @ 2000M (45.785 n 6.674e)
Telescope aperture and focal ratio:FLT 110 6.3 WO Flattener IV
Camera and filters used:ST8300 Filters HA, SII
Processing applied:Stacked in DSS, stretched in FITS Liberater, RGB aligned manually aligned in PS 4 with post processing
Filesize:696 KiB
Date added:Aug 16, 2012
Dimensions:1280 x 1014 pixels
Displayed:426 times
URL:http://gallery.orpington-astronomy.org.uk/displayimage-1324-_M20_Trifid_nebula_.html
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