Saturday, October 07, 2017

captured 54 Sgr (Halifax)

The Burke-Gaffney Observatory imaged 54 Sagittarii, a multi-star system I wanted to revisit as I had not logged the B star. First viewed in August 2013, at the CAO, a suggestion from a guest.

multi-star system 54 Sgr in luminance

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

C is the bright companion to the north-east.

No wonder I did not see the B element. It is very faint. Due west of A.

SkyTools 3 Pro shows B to be bright and states it is magnitude 11. No way. It's more like mag 14.

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