Monday, April 24, 2017

caught NGC 4157 and a satellite (Halifax)

The Burke-Gaffney Observatory imaged edge-on NGC 4157. A canted spiral galaxy in Ursa Major. One of the RASC Finest NGCs. Dark dust in front of a compact core. It does not seem symmetrical.

Dang, an artificial satellite wandered through the luminance frames...

RASC Finest galaxy NGC 4157 in luminance

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

It looks like there are a lot of small faint fuzzies in this image, particularly to the north of the central galaxy, and to the east. SkyTools 3 Pro only identifies a few subjects.

LEDA 213943 is a bright thin almond-shape to the south-west of the big spiral. In Ursa Major.

LEDA 2377854 is to the north-east. It is a dim oval. In Canes Venatici.

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