Wednesday, November 09, 2016

captured NGC 1931 poorly (Halifax)

The BGO robot imaged NGC 1931 for me. An open cluster with some nebulosity in Auriga. One of the RASC Finest NGCs. Some say it is a miniature version of the Great Orion Nebula. Unfortunately, there are a number of problems with the data. I'll have to reshoot.

RASC Finest open cluster with nebula NGC 1931 luminance

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

The bright stars in the centre of the open cluster are a multi-star system, HJ 367. A is the bright member to the bottom-left or south-east. South-west is B which is slightly dimmer. To the north-west is C, dimmer still. D is not split cleanly in this poor image; it is merged with B, oriented to the north-west. North-east of the whole group is the dimmest of the five, the E star.

Due south of the cluster and nebula are some bright stars including NSV 2053.

To the south-west is some very faint nebulosity. This is Parsamian 28.

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Tried to get more data on 11 Dec '16. Received more data on 21 Dec '16.

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Wikipedia link: NGC 1931.

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