Go Back   IceInSpace > Beginners Start Here > Beginners Equipment Discussions
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 09-09-2010, 08:37 PM
Mountain_Wanderer
Registered User

Mountain_Wanderer is offline
 
Join Date: Jul 2010
Location: Australia
Posts: 128
A question about zenith

Ok, i've got a question. Can someone let me know if my thinking is right here...

Zenith, I believe is the point directly above your head in the sky. If I were observing from the equator, at 0 degrees latitude, then I take it that the zenith right above me would be 0 degrees declination on a star chart?

Ok, providing I'm right there, my next question is, if I'm observing from Sydney at 35 degrees south latitude, then the zenith would be -35 degrees declination on a star chart?

This would then explain the best orienation to face (either north or south) to view a constellation in the sky. I have a set of star charts that provide an excellent account of the entire night sky, but fail to say which is the best way to face to view a star. It all makes sense once you realise that your latitude on earth directly corresponds to a zenith declination on the star charts. Then you can begin realising which way you need to face, and/or whether you need to look straight up above you!

Am I right here or have I ben smoking too much?

Last edited by Mountain_Wanderer; 09-09-2010 at 09:31 PM.
Reply With Quote
  #2  
Old 09-09-2010, 08:50 PM
noswonky (Peter)
Registered User

noswonky is offline
 
Join Date: Jul 2010
Location: Blue Mountains, NSW
Posts: 146
Yes, you are correct about everything.
Perhaps you're not smoking enough!
Reply With Quote
  #3  
Old 17-09-2010, 06:13 AM
circumpolar's Avatar
circumpolar (Matt)
and around we go

circumpolar is offline
 
Join Date: Jan 2006
Location: Quakers Hill, NSW
Posts: 426
Your Latitude also corresponds to how high above the horizon the south celestial pole is (or north celestial pole for northeners).
ie. The SCP from Sydney is 35deg above the southern horizon.
Reply With Quote
Reply

Bookmarks


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 09:16 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Astrophotography Prize
Advertisement