Go Back   IceInSpace > Beginners Start Here > Beginners Talk

Reply
 
Thread Tools Rate Thread
  #1  
Old 21-03-2012, 11:13 AM
Dennis G
Dennis G

Dennis G is offline
 
Join Date: Jan 2007
Location: Albany West Aust
Posts: 213
Starizona'sPolar Alignment drift method

I was impressed with the simplisity of this method, but unable to email a question I hope a IIS reader can answer my questions. The article is written for the Northern hemisphere. For Azimuth(RA) You are asked to sight a star on the meridian, due south.Rotate the diagonal so that you are on the north side of the scope. In my opinion you would be standing on the north side directly behind the scope and the diagonal with the EP vertical to the OT.
Altitude (Dec) sight a star in the east and rotate the diagonal so that you are standing on the southside of the scope. Why rotate the diagonal? Or am I missing something?
For the southern hemisphere the drift movements are reversed? Do we still use an east star for Dec?
Reply With Quote
  #2  
Old 21-03-2012, 12:03 PM
stardust steve's Avatar
stardust steve (Steve)
Registered User

stardust steve is offline
 
Join Date: Sep 2010
Location: Adelaide
Posts: 779
Quote:
Originally Posted by Dennis G View Post
I was impressed with the simplisity of this method, but unable to email a question I hope a IIS reader can answer my questions. The article is written for the Northern hemisphere. For Azimuth(RA) You are asked to sight a star on the meridian, due south.Rotate the diagonal so that you are on the north side of the scope. In my opinion you would be standing on the north side directly behind the scope and the diagonal with the EP vertical to the OT.
Altitude (Dec) sight a star in the east and rotate the diagonal so that you are standing on the southside of the scope. Why rotate the diagonal? Or am I missing something?
For the southern hemisphere the drift movements are reversed? Do we still use an east star for Dec?
Hi Dennis. I am the opposite of an expert in this field but i do have some bookmarks i have save that might help you. I have found some tutorials are easier to understand than others. Here they are i hope they help.
http://www.iceinspace.com.au/forum/showthread.php?p=830070#post830070 http://www.users.on.net/~pbl/art_sh_polar_alignment.htm
http://astronomy.abigbluesky.com/ind...ithout-polaris
http://www.rogergroom.com/astronomy/info_polaralignment
Good luck EDIT- as far as i know rotating the diagonal would make viewing easier and easier to tell if the star drifts north or south. I choose a star low on the Eastern horizon to set Alt.
Reply With Quote
  #3  
Old 22-03-2012, 10:45 AM
Dennis G
Dennis G

Dennis G is offline
 
Join Date: Jan 2007
Location: Albany West Aust
Posts: 213
many thanks Steve for taking the time to reply. The final part of one answers most. Much appreciated. Dennis
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 07:46 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement