Sunday, May 02, 2021

tried to image STF 1686 (Halifax)

On the evening of 21 May '20, with the little ETX-90, I tried to split HD 111959 but gave up.

The double star also known as STF 1686 or HIP 62852 is in Com and has a quoted separation of 5.7 seconds of arc. I had found this suggestion in Haas's book and was curious about the colours...

I sent the Burke-Gaffney Observatory (with SBIG camera) on a mission...

double STF 1686 in luminance

Luminance only, 1 second subexposures, 12 stacked shots. FITS Liberator, GIMP. North is up; east is left.

The seeing was poor and that has made the stars look more like bubbles. But there's clearly a vertically aligned rod shape here.

I'll have to try imaging again to see if I can get a clean split...


Imaged two nights later with a better result.

No comments: