Saturday, November 11, 2017

shot HD 46150 faster (Halifax)

First shot on 17 Jan '17 when I was trying to capture the bright open cluster NGC 2244 (within the Rosette). At 30 seconds, many of the bright stars were flat-topped. Learned of the multi-star system HD 46150 aka SAO 114010 but many of the components were merged. So I ordered BGO to expose for a 1/3rd of the time.

multi-star system HD 46150 in luminance

Luminance only, 10 seconds subexposures, 20 stacked shots. FITS Liberator, Paint.NET. North is up; east is left.

Got 'em!

Dim B is visible very close to the primary to the north-east, near the 11 o'clock position. C is slightly brighter than B. It is to the north-west (around the 1:30 position). Perhaps a titch closer than B. These two elements I had put on a "view again" status. Tagged!

D is brighter still, to the west-north-west or 2 o'clock. E is easy, brighter again, to the south-south-west or 5:30.

A, B, C, D, and E were lost in the glare or merged in the 30 second shot.

In addition, I had thought that the B had moved. In this image, it is clearly in a different position than indicated by SkyTools 3 Pro.

Also, quadruple system HD 46056 is more clearly resolved. As is triple HD 46180.

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