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Name: Paul
Status: other
Age: 20s
Location: N/A
Country: N/A
Date: 1999 - 2000


Question:
If we can set up two orbiting telescopes in pairs far enough apart around the earth to take 3-D pictures of heavenly bodies. Could this make history for the most spectacular 3-D astronomical images to be ever taken?


Replies:
They'd have to be REALLY far apart. Nice 3-D images of the moon have been taken by photographing the moon near moonrise and moonset; the spatial separation between exposures was provided by the diameter of the earth.

The best separation we could get for an orbiting or earth-based camera would be to take pictures six months apart, giving a separation of some 186 million miles. Even then, only the very nearest stars would show any parallax change, and all the rest would look identically far away, as they do to the naked eye.

Richard Barrans Jr., Ph.D.



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