Sponsor Message:
Military Aviation & Space Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Astronomy Question  
User currently onlineBruce From United States of America, joined May 1999, 5066 posts, RR: 15
Posted (10 years 6 months 3 weeks 22 hours ago) and read 1323 times:

In the evening hours when i look to the west sky there is one very bright star. Well, i dont know if its a planet, star, or maybe a stationary satellite.

The thing is, it never moves. Other planets and stars can change position in the sky even during the course of one night as the earth turns. But this one is always in the same exact spot, about 40 degrees (just a rough guess) above the horizon and it does not move during one evening, although i have noticed tonight it seemed a little higher than other nights. It is not visible until the sun sets.

BTW, i live in the southeastern USA. I dont know if this is visible anywhere else. I am thinking it may be a stationary satellite in a geosynchronous orbit. It is not the International space Station because I have seen that before, and it moves!

I was just curious about this. I never really noticed it before but its always there.

bruce


Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
10 replies: All unread, jump to last
 
User currently offlinePU151 From , joined Dec 1969, posts, RR:
Reply 1, posted (10 years 6 months 3 weeks 17 hours ago) and read 1205 times:

One good way to know whether it's a planet or a star is to watch them for a moment. Stars' light is not continual, it flickers (I think that's the word in English), whereas planets reflect the sun's light, and therefore, "shine" continually.

I don't think it's a geostationary satellite, since those are at 36000 km altitude, unlike, for example, the ISS that sits at 330km. A satellite so far you can't see.

Definitely, it must be one of those spy satellites that the US government has put in orbit to control our lives! 9-p

Edit: P.S: I'm an amateur, so don't take what I say as 100% true.

[Edited 2004-05-12 16:09:07]

User currently offlineCannibalZ3 From United States of America, joined May 2001, 392 posts, RR: 0
Reply 2, posted (10 years 6 months 3 weeks 10 hours ago) and read 1186 times:

You sure it's not the moon?

There are some stars that, due to the motion of the Earth, never appear to move. Either they're so far away that there's no movement in relation or the Earth just spins so that the star will always be at the same plane.
It could also be a planet. You should ask at someplace that they'll really know, like the non-av forum.
I understand that it is possible for satellites to be seen from Earth, but that it's hard to do - they definately don't come out as bright stars.


User currently onlineBruce From United States of America, joined May 1999, 5066 posts, RR: 15
Reply 3, posted (10 years 6 months 2 weeks 6 days 4 hours ago) and read 1155 times:

Oh no, definitely not the moon. I can see the moon - this star is much smaller than the moon but bigger than any other star.


Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
User currently offlineFredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 4, posted (10 years 6 months 2 weeks 5 days 21 hours ago) and read 1145 times:

If it is not on the rotational axis of the Earth (i e the North Star) and stays put in the sky when the Earth rotates, it is geostationary. That leaves two options. It is either in geostationary orbit or fixed to the earth. Well, three options, it could be suspended in the atmosphere at one specific location.

Everything else would change position in the sky with the rotation of the planet.

Cheers,
Fred



I thought I was doing good trying to avoid those airport hotels... and look at me now.
User currently offlinePU151 From , joined Dec 1969, posts, RR:
Reply 5, posted (10 years 6 months 2 weeks 5 days 20 hours ago) and read 1144 times:

Well, maybe you should go to the http://www.badastronomy.com forum, they will definitely be better suited to help you out on this question.

FredT: yes, it could be fixed to the earth. Bruce, I don't mean this as bitch-question, but are you sure it's not an extremely far-away antenna with a light on top of it? That would explain why it doesn't move. And about a geostationary object, well, it ought to be HUGE for you to see it.


User currently onlineBruce From United States of America, joined May 1999, 5066 posts, RR: 15
Reply 6, posted (10 years 6 months 2 weeks 3 days 22 hours ago) and read 1117 times:

hahaha, no its not an antenna!! There is no antenna that is as high as an aircraft fles!

bruce



Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
User currently offlineQantasA332 From Australia, joined Dec 2003, 1500 posts, RR: 25
Reply 7, posted (10 years 6 months 2 weeks 3 days 9 hours ago) and read 1111 times:

One good way to know whether it's a planet or a star is to watch them for a moment. Stars' light is not continual, it flickers (I think that's the word in English), whereas planets reflect the sun's light, and therefore, "shine" continually.

Not really. Both stars and planets 'flicker', and that is caused by their light passing through the earth's atmosphere as it makes its way to your eye. The source of the light plays no part...

Cheers,
QantasA332


User currently offlinePU151 From , joined Dec 1969, posts, RR:
Reply 8, posted (10 years 6 months 2 weeks 3 days 9 hours ago) and read 1112 times:

Yeah, I know, I was just trying to put it simple but I didn't write it clearly, I admit. I had an entire 1 and a half hour lecture on that in Astronomy class back in high school, and unfortunately, I couldn't sleep thru it!! Big grin

Edit: Bruce, contact the tabloids! You must have spotted the Aurora then!  Big thumbs up No seriously, anyone have any idea of what it might be? It's ticked off my curiosity...

[Edited 2004-05-17 00:04:44]

User currently offlineQantasA332 From Australia, joined Dec 2003, 1500 posts, RR: 25
Reply 9, posted (10 years 6 months 2 weeks 3 days 9 hours ago) and read 1109 times:

That's fine, I just wanted to clarify things...

Hasta luego,
QantasA332


User currently offlinePU151 From , joined Dec 1969, posts, RR:
Reply 10, posted (10 years 6 months 2 weeks 3 days 9 hours ago) and read 1112 times:

We're all on the same side here, and thanks for that Qantas, I might have misled someone because of my laziness...  Nuts

Top Of Page
Forum Index

Reply To This Topic Astronomy Question
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Military aviation related posts only!
  • Not military related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
F-15 Engine Question? posted Thu Nov 16 2006 08:08:08 by Venus6971
Buff Picture OTD Question posted Mon Nov 13 2006 06:37:12 by TedTAce
U.S.A.F Squadron/Wing Question posted Tue Nov 7 2006 23:03:55 by Tiger119
Fighter Jet Fly-by Question posted Mon Nov 6 2006 05:37:12 by Chi-town
'Stupid' Carrier Ops Question: Soaking The Jets. posted Sun Oct 22 2006 23:21:53 by TedTAce
Old Jet RAF Aeroplanes Question posted Wed Oct 11 2006 00:17:54 by Gary2880
Coast Guard Question posted Tue Oct 3 2006 03:12:49 by United767
U-2 Flight Profile Question posted Mon Oct 2 2006 02:03:38 by Bhill
Blue Angles Fleet Week (SFO) Question posted Sun Oct 1 2006 08:55:37 by Nonfirm
B2 Question..... posted Fri Sep 1 2006 22:46:28 by Boeing nut

Sponsor Message:
Printer friendly format