Wednesday, April 08, 2020

Apr 2020 doubles

Sent out my double star "bulletin" for April 2020. It is a short list of suggested targets. I shared this on the RASC Toronto Centre forums. And I post here for everyone. They withstand light pollution.


Despite the full (pink?) Moon, you can still do lots of astronomy. Double stars punch through bright skies so you can observe them any time, anywhere!

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

staralso known asalternate catalogue(s)
HR 4428 Crt(Jacob, W.S.) JC 16SAO 179936, HIP 56078
HD 73668 HyaSTF (Struve) 1255SAO 117000, HIP 42488
HD 82372 Leo(Struve) Σ1364SAO 80890, HIP 46781
SAO 81492 LMi(John Herschel) HJ 489PPM 100599, TYC 1977-02634-1
iota-1 (ι) CncΣ1268SAO 80416, HIP 43103

If you're having a hard time referencing SAO 81492, look for NGC 3344. :-D

Please consider adding double stars to your observing list. They are fun, easy, sometimes challenging, interesting, colourful, and dynamic!

I look forward to hearing how you did! Share your observations. Happy to take questions.

Be seeing you (online).
Blake Nancarrow
astronomy at computer-ease dot com

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