Saturday, December 16, 2017

imaged PPM 50856 (Halifax)

I ordered the BGO robot to aim at Tycho 34170 0943 1 so to capture double star PPM 50856. I don't recall exactly why I wanted to view this pair in Lynx. It was on my "view again" list in SkyTools.

double-star PPM 50856 in luminance

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

The pair in question is east (left) of centre. Very tight. Nearly the limit of the BGO system. The B companion is nearly due south of the primary. The consort is about 1 or 2 magnitudes dimmer.

First tried to view this object on 25 Mar '11.

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