Jump to content


Photo

Polarscope - visual

  • Please log in to reply
2 replies to this topic

#1 Lagonda

Lagonda

    Sputnik

  • -----
  • Posts: 48
  • Joined: 09 Apr 2010
  • Loc: Zg, Croatia, Europe

Posted 03 March 2011 - 08:25 AM

Dear astronomers,

I was wondering when you go for some visual observing, do you need or do you use polarscopes in your mounts? If you are not changing your location too much, let's say, maybe a few degrees north or south, do you "locate" your telescope just on a few stars or do you use polarscope for most accurate positioning? And how accurate your mounts are?

Best regards and clear skies.
Lagonda

#2 Trev

Trev

    Viking 1

  • -----
  • Posts: 879
  • Joined: 18 Dec 2005
  • Loc: Fort McMurray, AB

Posted 03 March 2011 - 08:44 AM

I don't have a polar scope. I just rough align on Polaris and then do a 2 star alignment and I'm good to go.

#3 gnowellsct

gnowellsct

    Fly Me to the Moon

  • *****
  • Posts: 6839
  • Joined: 24 Jun 2009

Posted 03 March 2011 - 06:15 PM

I use a polar scope and Argo Navis. The Argo Navis pointing model gets me to within three to four arc minutes of an object. The pointing model indicates that my polar alignment is typically from 0 to 15 arc minutes of true N, within the measurement error of the encoders. Greg N






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics