Friday, February 01, 2019

captured M91 (Halifax)

BGO gathered photons from Messier 91. I first viewed the galaxy in the Coma Berenices constellation on 3 May '13.

galaxy Messier 91 in luminance

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

A big propeller. This is an amazing barred spiral galaxy with a large and incredibly bright hub. There are two prominent arms in NGC 4548. It's difficult to see and I am having a hard time drawing it out but there's a large halo around the whole galaxy. We're face on.

To the north is a tiny fuzz ball: LEDA 169575.

PGC 41858 is far away to the west-north-west. Another tiny round fuzzy point.

Close to the big island universe, to the south, is LEDA 169578.

Almond-shaped PGC 41978 lies to the south-east. The canted galaxy is quite large and bright.


Wikipedia link: Messier 91.

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