Last updated: 28 September 2006
Subject: Autostar 43E a Sent: Monday, September 25, 2006 13:10:26 From: Roger (email@example.com) On the latest version of autostar i think 43Ea after a two star alignment it gives you some figures of how far off you are to true north. Can you advise to what these actully mean ? Example 13'v 41'> I take it the numbers are for arc seconds but what are the " v & > for ? RogerMike here: Those are directional arrows but I've not yet determined exactly their directions. Perhaps Dick Seymour can enlighten us.
From: richard seymour (firstname.lastname@example.org) As Mike said, the carets, vees and ">" are serving as "arrows", pointing to where the pole -really- is relative to your current arrangement. The (') (apostrophe) means arcMinutes, not arcseconds. The "nearly perfect" indicator (i.e. the best you'll ever see) is <5' ..meaning "less than 5 arcmin from pole". In your quoted example, 13'v 41'> means that you want to move your wedge to lower the RA axis by about 1/4 degree (13 arcmin) and move it eastward (if you're in the northern hemisphere) 3/4 degree (41 arcmin). In words, the screen is trying to tell you: "The pole is 13 arcminutes down, and 41 arcminutes east, of where you currently have the RA axle pointed." Think of yourself standing south of the telescope, gazing over it towards the north pole, and the v and > become correctly oriented. have fun --dick
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