Saturday, July 02, 2016

captured a bubble (Halifax)

The BGO robot imaged NGC 7635 for me. A diffuse nebula in Cassiopeia. The Bubble Nebula. aka Caldwell 11. One of the RASC Finest NGCs.

Luminance only, 60 seconds subexposures, 10 stacked shots. FITS Liberator, GIMP. North is up; left is east.


Aimed at it again on 8 Nov '18 to collect hydrogen and oxygen narrowband data.


Processed LRGB data for a colour image on 17 Aug '20.


Wikipedia link: NGC 7635.

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