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Astronomy Picture of the Day
NASA ^ | 5/21/08 | Inga Nielsen

Posted on 05/21/2008 3:02:40 PM PDT by sig226


Dangerous Sunrise on Gliese 876d
Illustration Credit & Copyright:
Inga Nielsen (Hamburg Obs., Gate to Nowhere)

Explanation: On planet Gliese 876d, sunrises might be dangerous. Although nobody really knows what conditions are like on this close-in planet orbiting variable red dwarf star Gliese 876, the above artistic illustration gives one impression. With an orbit well inside Mercury and a mass several times that of Earth, Gliese 876d might rotate so slowly that dramatic differences exist between night and day. Gliese 876d is imagined above showing significant volcanism, possibly caused by gravitational tides flexing and internally heating the planet, and possibly more volatile during the day. The rising red dwarf star shows expected stellar magnetic activity which includes dramatic and violent prominences. In the sky above, a hypothetical moon has its thin atmosphere blown away by the red dwarf's stellar wind. Gliese 876d excites the imagination partly because it is one of the few extrasolar planets known to be close to the habitable zone of its parent star.


TOPICS: Astronomy Picture of the Day
KEYWORDS: apod
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To: potlatch


21 posted on 05/22/2008 3:14:29 PM PDT by devolve ( -- -The_Project_Islamic_Hope_website_banner no_longer_features_Barack_Hussein_Obama_Junior)
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To: devolve

That’s a wonderful graphic devolve. How clever you were to expand that star to make a ‘beam’ coming down!!


22 posted on 05/22/2008 5:36:27 PM PDT by potlatch
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To: devolve

Very neat! The spaceship looked blue in the other one and a greenish-grey here. New beams shooting down too!


23 posted on 05/22/2008 5:40:18 PM PDT by potlatch
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To: potlatch

.

I figured I could make one .gif

The Beam.gif goes up & down

The Saucer still rotates

Sometimes things come out better than we planned -


24 posted on 05/22/2008 5:57:25 PM PDT by devolve ( -- -The_Project_Islamic_Hope_website_banner no_longer_features_Barack_Hussein_Obama_Junior)
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To: devolve
[Sometimes things come out better than we planned -]
Lol, and sometimes accidentally too!! No, I know you try and try again till it looks good.

I would tediously have to composite each frame of the beam onto each frame of the saucer to get an effect. Sometimes it gets more complicated too.

The final ‘look’ is what counts.

25 posted on 05/22/2008 6:01:32 PM PDT by potlatch
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To: potlatch


I use my own weird methods!


26 posted on 05/22/2008 6:59:22 PM PDT by devolve ( -- -The_Project_Islamic_Hope_website_banner no_longer_features_Barack_Hussein_Obama_Junior)
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To: devolve

Your weird methods are usually what makes them “stand out”!!


27 posted on 05/22/2008 7:05:47 PM PDT by potlatch
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To: potlatch


"Jump out!"


28 posted on 05/22/2008 7:24:32 PM PDT by devolve ( -- -The_Project_Islamic_Hope_website_banner no_longer_features_Barack_Hussein_Obama_Junior)
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To: devolve

EXPLODE!


29 posted on 05/22/2008 7:27:28 PM PDT by potlatch
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