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Old 04-02-2009, 05:01 PM
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troypiggo (Troy)
Bust Duster

troypiggo is offline
 
Join Date: Nov 2008
Location: Brisbane, Australia
Posts: 4,846
quick and stupid drift alignment question

Been reading several different pages on drift alignment and think I fried my brain. Kind of understand what they're trying to achieve, and while they all refer to the directions differently (some say up/down/left/right while others say N/S/E/W), they all agree that you don't worry about drift in the RA, only the DEC. Fine. Now for my dumb questions...

What do they mean by looking for drift in the dec direction? Does that mean look for the stars moving along the line of (ie parallel to) the dec axis? Or stars moving perpendicular to the dec axis (ie to my understanding their dec value is increasing or decreasing)?

By dec axis, I'm taking that to mean the line in my reticle that stars move along if I adjust the dec (up and down arrows on keypad) with Synscan keys.

I read the tutorials over and over, and I can read and interpret it both ways.

Gave it a go the other night, and when pointing east I adjusted the latitude up and down 10 degrees and the stars just kept on moving in the same direction, so I figured (afterwards) I must've been out by 90degrees with my understanding of "in the dec direction".
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