Monday, August 31, 2020

posted Sep 2020 doubles

Prepared my double star "bulletin" for September 2020. It is a short list of suggested targets. I will share this on the RASC Toronto Centre forums. And I post here for everyone.


Here it is, a day or two before the full Moon and you're thinking you can't do any astronomy. In fact, planets, the Moon, variables, and double stars are up for grabs.

For Sep 2020, here’s a short selection of interesting double and multi-star systems from my life list for your consideration.

staralso known asalternate catalogue(s)
HD 194192 CygHJ 1510SAO 49538
57 AqlΣ2594 (Struve)SAO 143898, HIP 97966
HD 197913 DelΣ2725HIP 102490
30 PegHJ 962SAO 127453, HIP 110298
3 PegSTFA 56 (Struve Appendix 1)SAO 126940, HIP 106783

Have a go. See if you can split them and detect colour. I hope you'll share your discoveries.

Blake Nancarrow
astronomy at computer-ease dot com

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