Monday, April 24, 2023

imaged M9 (Halifax)

While reviewing my Messier life list, I noted that I had only two viewings log of Messier 9, and neither seemed very satisfying. So, I thought I'd collect some photons, by another means.

Asked BGO to image the globular cluster in Ophiuchus.

Did not wait long! Less than a day in the queue? Nice.

globular cluster Messier 9

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

Loosely packed, steady distribution of stars. Small. An attractive conglomeration.

Seems to be a void at the bottom-right (south-west). Is this Barnard 64?

Looks like there's lots of double stars in the 'hood...

Also known as NGC 6333.


Wikipedia link: Messier 9.

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