photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Gerhard Bachmayer | all galleries >> AstroPhotos >> Astrophotos 2008-2013 > M20 - The Trifid Nebula and M21 in Sagittarius
previous | next
M20 - The Trifid Nebula and M21 in Sagittarius
JUNE-2011

M20 - The Trifid Nebula and M21 in Sagittarius

Tivoli/Namibia

M20 is a splendid example of a combination of a red emission and a blue reflection nebula.
M21 is the open star cluster in the upper left corner.

Telescope: ASA 12N-OK3 f3,6
Mount: ASA DDM 85
Camera: FLI PL16803
Filter-wheel: FLI CW 5-7
Filter: FLI L,R,G,B
Exposure: L:12x300sec, R:4x300sec, G:4x300sec, B:4x300sec
Programs: Maxim DL 5.0, CCDStack 1.7, PixInsight SE 1.7 full exif


other sizes: small medium large original
comment | share