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 : 63 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 : 42 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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