Lightning222
Guest
Number of posts : 2198
Location : here
Humor : most definitely
Registration date : 2009-07-26
 | Subject: A Month of Pictures in Space  Wed Sep 09, 2009 2:45 pm | |
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day
Senior Member
Number of posts : 1193
Location : mother earth
Humor : dry, witty
Registration date : 2009-08-03
| | Subject: Re: A Month of Pictures in Space Wed Sep 09, 2009 3:05 pm | |
| some really nice pictures Deb thanks for the share!  | |
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micjer
Senior Member
Number of posts : 5325
Age : 62
Location : canada
Registration date : 2009-01-23
| | Subject: Re: A Month of Pictures in Space Wed Sep 09, 2009 8:02 pm | |
| Some great pics. Here is an interesting one.  - Quote :
- Explanation: As the Earth spins on its axis, the sky seems to rotate around us. This motion, called diurnal motion, produces the beautiful concentric trails traced by stars during time exposures. Partial-circle star trails are pictured above over Grants Pass, Oregon, USA last month. Near the middle of the circles is the North Celestial Pole (NCP), easily identified as the point in the sky at the center of all the star trail arcs. The star Polaris, commonly known as the North Star, made the very short bright circle near the NCP. About 12,000 years ago, the bright star Vega was the North Star, and in about 14,000 years, as the Earth's spin axis slowly continues to precess, Vega will become the North Star again.
The Mayans had this cycle figured out long ago! | |
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Reunite
Moderator
Number of posts : 4993
Age : 47
Location : Here
Humor : Dry and Wet
Registration date : 2009-01-23
| | Subject: Re: A Month of Pictures in Space Wed Sep 09, 2009 8:25 pm | |
|  I love the pictures. | |
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raulduke
Member
Number of posts : 404
Age : 41
Location : usa
Humor : myself
Registration date : 2009-01-26
| | Subject: Re: A Month of Pictures in Space Thu Sep 10, 2009 1:40 am | |
| Hubble image released 9/9/09 Celestial object resembling a butterfly  | |
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| | Subject: Re: A Month of Pictures in Space | |
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