Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
NGC 6888 Cresset Nebula Ha O3, Elliott Melan
NGC 6888 Cresset Nebula Ha O3
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NGC 6888 Cresset Nebula Ha O3

NGC 6888 Cresset Nebula Ha O3, Elliott Melan
NGC 6888 Cresset Nebula Ha O3
Powered byPixInsight

NGC 6888 Cresset Nebula Ha O3

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Description

Rain Rain Rain. What to do. Well rework some of the old files of course. This is data I collected two years ago. I was never very happy with the results. As my processing skills have improved and the advances in Pixinsight continue I thought it would be a good time to retry this. NGC 6888 or Crescent nebula has formed from  fast stellar winds from the Wolf-Rayet Star WR 136 with the slower moving winds ejected by the star when it became a Red Giant star. This causes two shock waves which heats the stellar wind to X ray emitting temperature. This is a two narrow band image of Ha and O3.  Thanks to Wikipedia for the technical info

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NGC 6888 Cresset Nebula Ha O3, Elliott Melan