[AZ-Observing] Re: Comet Catalina

  • From: Tony Muller <acmuller1@xxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Fri, 18 Dec 2015 15:17:21 -0700

Brian,
Never cease to be amazed.

Happy Holidays,

Tony Muller

Sent from my Verizon Wireless 4G LTE Droid
On Dec 18, 2015 1:42 PM, Brian Skiff <bas@xxxxxxxxxx> wrote:


On Fri, 2015-12-18 at 08:13 -0700, J. D MADDY wrote:
.... The "double star" to the right of the comet is actually
two independent stars and only a visual double. (As per Starry Night)
Link to the picture:

https://www.flickr.com/photos/59454099@N00/23828595245/in/dateposted-public/



     Starry Nights must need updating, since the
double star is in fact a nice common-motion pair.
The primary is HD 125057, and they are a pair of
G-type dwarf stars.  The pair is WDS 14171+0103 =
hj 1250, first measured in 1828 by John Herschel.
The proper motion of the two stars is a bit over
0".1 per year, heading southeast.


\Brian


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