doubles for Dec 2019

Sent out my double star "bulletin" for December 2019. It is a short list of suggested targets. I shared this on the RASC Toronto Centre forums. And I post here for all.

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I did a double header last night with the clear skies in Ontario and in Nova Scotia. Featuring double stars, of course! I popped out to the backyard with the little ETX for an hour or so while monitoring four imaging jobs being processed by the Burke-Gaffney Observatory. You too can check out double stars regardless of light pollution or the cold. Get out there.

Here's a short selection of easy double stars and multiples from my life list.

star	also known as	alternate catalogue(s)
15 Tri	AG 304	HIP 12086
HD 23107 Per	STF 434	SAO 56667, HIP 17424
HD 36073 Tau	h 3275, β891	SAO 94589, HIP 25745
ζ (zeta) Psc		SAO 109739, HIP 5737
Groombridge 34	GRB 34, GX And	SAO 36248, HIP 1475

I look forward to hearing how you make out.

Blake Nancarrow
astronomy at computer-ease dot com