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Old 09-02-2022, 08:34 PM
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OzEclipse (Joe Cali)
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Join Date: Jun 2012
Location: '34 South' Young Hilltops LGA, Australia
Posts: 1,497
Quote:
Originally Posted by PaulSthcoast View Post
Hi Joe,

Care to 'shed some light' onto the Polar Alignment tool ?

I'm sure I am.not the only one who is curious about it.

Young...
I have spent quite a bit if time out that way.

Brings back many many memories.

Thanks.

Paul.
Sure, there's a whole article about it on my website.
https://joe-cali.com/ Go to the bottom of the home page and look for the article on APPS. APPS stands for Artificial Projected Pole Star. It's simple, quick and cost me $30 to build 4 years ago. I can usually do a precise align in about 4mins and then don't need to do any dec corrections in 3 min subs at 1300mm focal length. I've been using it since 2018 and it's never failed me. The only problems I have affect any method of polar alignment, tripod legs sometimes settling into soft ground during the night. I leave the laser in place turned off. Then it only takes a couple of mins to re-check and re-align the polar alignment during the night. This only occurs when the ground is saturated and wet.

Joe
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