Thursday, August 02, 2018

shot 41 Aqr (Halifax)

Second night in a row...

The Burke-Gaffney Observatory robot imaged multi-star system 41 Aquarii, aka H N 56, aiming at GSC 06384 00537. I observed this system on 15 Aug '15 but did not make good notes. It is listed in the RASC Observer's Handbook in the Coloured Doubles table.

multi-star system 41 Aqr in luminance

Luminance only, 0.5 second subexposures, 20 stacked shots. FITS Liberator, GIMP. North is up; east is left.

The A and B stars are merged in the image. If I had to guess, I'd say B is the bump on the left or east edge of A. SkyTools 3 Pro says they are 5.1 arc-seconds apart. This is the limit of the BGO Apogee system given the delta magnitude.

C and D are to the north-east. D is the delicate star west of C, ever so slightly to the south. ST3P quotes the sep. at 12.0".

Lovely. Finally, I have good positional notes.


Wikipedia link: 41 Aquarii.

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