Friday, January 18, 2019

imaged neglected MLB 811 (Halifax)

Commanded BGO during a lull to image neglected double star MLB 811 in the Andromeda constellation aiming at nearby SAO 54361.

neglected double-star MLB 811 in luminance

Luminance only, 2 seconds subexposures, 12 stacked shots. FITS Liberator, Paint.NET. North is up; east is left.

The poor sky conditions degraded the image slightly.

SAO 54361 is the bright star near centre. The target pair is due east. Very faint!

The WDS shows:

01024+3958MLB 811      1933 1933    1 196 196   5.9   5.9 10.1  10.0                                         D  010225.51+395833.8

No observations since 1933. Unchanged PA and Sep at 196° and 5.9" respectively. Mag 10 stars.

Stella Doppie lists observations in 2007 and 2015. Both note a PA of 202°. The separation is 7.2 or 7.3. Interestingly the 2015 report states the magnitudes are 11.8 and 13.0 for the A and B stars. In my image, think they are nearly equal.

My quick measurement of the image yields of position angle of 201 degrees.

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