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by stripykitteh
1183 days ago
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A LaGrange point would do, and Professor Kipping suggested putting a telescope near the JWST at L2. At that distance you would be sampling light that has passed through the Earth's atmosphere at an altitude of 14km. About 8% of the light would be lost, but at that altitude there's little weather to disturb the image. |
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The Lagrange points are stable positions relative to two bodies, like the earth and the moon or the earth and the sun. But those things are moving, orbiting. The points move with them. The line from the earth to any Lagrange point won't stay stably pointing at any star in the sky.
And even then, the focal point of this atmospheric lens is at a specific distance that is not, afaik, the distance to any Lagrange point.