Friday, July 14, 2017

imaged epsilon Lyr (Halifax)

The BGO robot imaged epsilon Lyrae for me. A multi-star system typically referred to as the Double-Double. This image is centred on GSC 03122 01380.

multi-star system epsilon Lyr in luminance

Luminance only, 5 seconds subexposures, 20 stacked shots. FITS Liberator, GIMP. North is up; east is left.

The Double-Double is well known for its 4 years but it is actually a 9-star system. I wanted to view/image this region again so to tag the H star (aka SHJ 277). I had not spotted it on the evening of 8 Jun. SkyTools 3 Pro showed H was almost due north of G. In the image, it is obvious. It is the same brightness has G, arguably brighter. Is it a variable?

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Wikipedia link: epsilon Lyrae.

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