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Gerhard Bachmayer | all galleries >> AstroPhotos >> Astrophotos 2008-2018 > M17 in Sagittarius
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M17 in Sagittarius

M17 in Sagittarius

M17 is a typical representative of emission nebulas. It strongly glows in the light of ionized hydrogen and oxygen. It's a craddle of newly born stars, the brightest of them - although hidden in the interior of the gas clouds - are the source of the radiation which causes the nebula's glow.

Telescope: ASA 10N-OK3 f3.6
Mount: ASA DDM 85
Camera: FLI PL16803
Filter-wheel: FLI CW 5-7
Filter: FLI Ha,OIII,R,G,B
Exposure: Ha:9x600sec, OIII:9x600sec, R:4x300sec, G:4x300sec,
Programs: Maxim DL 5.0, CCDStack 1.7, PixInsight SE 1.7 full exif

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