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To: ETL

http://www.skyandtelescope.com/ has that great interactive viewer that can go years into the future if you want.


10 posted on 03/31/2010 9:31:01 AM PDT by cripplecreek (Remember the River Raisin! (look it up))
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To: cripplecreek
http://www.skyandtelescope.com/ has that great interactive viewer that can go years into the future if you want.

Thanks. I never knew that. I've been using the one heavens-above.com has. But S&T's is better I think. It even shows the perceived color of the planet. Notice that Mars and Mercury are somewhat orange in color. Mars is orange simply because it is 'rusty'. Its surface rock consists of iron-bearing basalt which has been oxidized by the thin Martian atmosphere. Mercury, however, appears orange or pink to us because it's always low on the horizon and we're looking through a thicker column of air as we look out more or less along the surface and out into space. The atmosphere reddens objects.

13 posted on 03/31/2010 9:55:31 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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To: All; cripplecreek

Here is a direct link to the Sky and Telescope interactive sky map. However, you need to first register with the site in order to access it. There is no charge for registering.

http://www.skyandtelescope.com/s?action=login


16 posted on 03/31/2010 10:03:11 AM PDT by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
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