Tuesday, April 10, 2018

snapped the Little Ghost (Halifax)

The BGO robot photographed the Little Ghost Nebula also known as NGC 6369. A planetary in the constellation of Ophiuchus and one of the RASC Finest NGCs. It's also a Herschel 400 target. Very nice.

a RASC Finest - planetary nebula NGC 6369 in luminance

Luminance only, 30 seconds subexposures, 10 stacked shots. FITS Liberator, Paint.NET. North is up; east is left.

Originally, this is a target that I thought was too low for the Burke-Gaffney system. Alas when I learned that the default minimum altitude was not the lowest possible, I happily added this NGC object to the queue. It can reach a maximum altitude of 21°.

A lovely little donut. In a rich field of fine stars. The ring is brighter along the north edge. The central star is easily spotted. Slightly off centre. I believe I see hints of a shell beyond the main ring, particular to the top-left (north-east) and bottom-right sides. I first viewed this tiny target in August 2011.

Forgot to get HA and O-III data...

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Wikipedia link: Little Ghost Nebula.

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