Tuesday, October 31, 2017

viewed the Garnet as a double (Halifax)

The Burke-Gaffney Observatory imaged The Garnet Star aka μ (mu) Cephei for me. I have viewed this colourful star many times as example of a deep orange or red star. Recently I learned it is also a multi-star system. This photograph is centred on GSC 03979 00454.

multi-star system mu Cep in luminance

Luminance only, 3 seconds subexposures, 20 stacked shots. FITS Liberator, Paint.NET. North is up; east is left.

The B and C companions to the primary are rather faint.

B is close, almost due west, almost on the diffraction spike.

C is to the north-west, about 3 times the AB distance. It is a bit dimmer than B.

A very interesting field.

It'll be fun (I hope) to process this in colour to see how red it really is...


Assembled in full colour.


Found the Garnet on my View Again list in SkyTools. Removed it.


Wikipedia link: mu Cephei.

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