Rotating stars, not.
Time Lapse Sky Shows Earth Rotating Instead of Stars.
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16 comments posted so far. Login to add a comment.
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2. teamoranqe commented 13 years ago
thank god for gravity
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3. TrollyAtsam commented 13 years ago
Like if you think we're not alone in the universe.
Dislike if you think we are alone in the universe.
Dislike if you think we are alone in the universe.
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4. datastreamdude commented 13 years ago
cool vid.
it was make me a bit giddy at one point.
it was make me a bit giddy at one point.
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8. agentreeko commented 13 years ago
0:39 was that a laser beam?
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11. thorargent commented 13 years ago
#8, yes, a yellow laser based on the frequency of sodium atoms is used to create a synthetic "guide star" which is a tiny dot in the sky. By measuring how the synthetic guide star trembles or twinkles, the computer distorts the telescope mirror slightly to compensate for it. This is called "adaptive optics" and it makes very clear images that way.
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12. BooTheGoose commented 13 years ago
Heresy I say!
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13. Thanny commented 13 years ago
#5 You're missing the point entirely. Time lapse movies of the sky are a dime a dozen. This one is interesting because it was processed afterwards to fix the frame of reference on the sky, so the earth appeared to rotate instead (which, of course, it actually does).
This is one of those things where you either get why it's interesting, or you don't.
This is one of those things where you either get why it's interesting, or you don't.
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15. SunshineEddy commented 13 years ago
#13 I found this very interesting and lovely except I was distracted by the frame of the images that broke the illusion. I agree with #5, I wish they had found a way to either rotate the camera to get the effect, or had used a wide enough lens to zoom into the image enough that we don't see the distracting black box that destroys the illusion of the earth rotating while the stars remain static.
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16. Filiforme commented 13 years ago
You guys... this was most likely done using a video camera on a rotatin pod. They use that to study stars. You can enter the knows orbits of many stars in a little processor and it will follow them.
That is why the image is rotating. The only editing done was to changes in camera.
That is why the image is rotating. The only editing done was to changes in camera.
+27 1. woschman commented 13 years ago