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The Crescent Nebula in Ha and OIII

Posted: Tue Nov 05, 2019 1:51 pm
by wvreeven
The Crescent Nebula only in the light emitted by Hydrogen Alpha (red) and Oxygen III (green and blue). I took 48 subs of 600 sec each with a ZWO Ha filter and 127 subs of 180 sec each with a Baader OIII filter using a SkyWatcher Esprit 80ED and an ASI1600MM-C Pro. Processing, colour combination and background calibration done in AstroPixelProcessor, final touches in PixInsight.
2019-09-05_NGC6888_HaOIII-mod-cbg-St-ct-mt-scnr-tvgd.jpg

Re: The Crescent Nebula in Ha and OIII

Posted: Tue Feb 25, 2020 1:28 am
by Benni
its not only the crescent nebula. You also have pictured the soap bubble nebula. Look to the right above the crescend, in a diagonal line from the crescent to the edge of the image... the soap bubble nebula was only recently discovered by amateurs...

Re: The Crescent Nebula in Ha and OIII

Posted: Thu Feb 27, 2020 1:02 pm
by wvreeven
Thanks Benni, yes I already noticed it myself.