Orbiter-Forum  

Go Back   Orbiter-Forum > Far Side of the Moon > Astronomy & the Night Sky
Register Blogs Orbinauts List Social Groups FAQ Projects Mark Forums Read

Astronomy & the Night Sky Astronomy news & discussions, Astrophotography, Telescopes, Star Charts, & more. Galaxies, Stars, Planets & Moons, discuss it all here!

Reply
 
Thread Tools
Old 07-18-2009, 06:40 PM   #1
caningo
Developer-in-training
 
caningo's Avatar

Default earth apogee/perigee passage

Hi everyone,

I just have a quick question:

At what point in the year is the earth at apogee and/or perigee? Is there anywhere this information might be available? Also, does the apogee/perigee passage have anything to do with the seasons?

Thanks!
caningo is offline   Reply With Quote
Old 07-18-2009, 07:18 PM   #2
Andy44
owner: Oil Creek Astronautix
 
Andy44's Avatar
Default

Here's a rundown for the next few years:

http://en.wikipedia.org/wiki/Apsis

BTW, the terms "apogee" and "perigee" are incorrect when referring to a sun-centered orbit.

The correct terms are "aphelion" and "perihelion", or you can use the general terms for all bodies, "apoapsis" and "periapsis".

See this for different body apses names: http://en.wikipedia.org/wiki/Apsis
Andy44 is offline   Reply With Quote
Old 07-18-2009, 10:51 PM   #3
caningo
Developer-in-training
 
caningo's Avatar

Default

Thank you so much Andy for the info and I appreciate you clarifying the use of the -gee and -helion terms.
caningo is offline   Reply With Quote
Reply

  Orbiter-Forum > Far Side of the Moon > Astronomy & the Night Sky


Thread Tools

Posting Rules
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
Forum Jump


All times are GMT. The time now is 06:48 PM.

Quick Links Need Help?


About Us | Rules & Guidelines | TOS Policy | Privacy Policy

Orbiter-Forum is hosted at Orbithangar.com
Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2007 - 2012, Orbiter-Forum.com. All rights reserved.