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The top documents tagged [rthickness of shell]
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rthickness of shell
Darkness at Night (Olbers’ Paradox) Imagine you are a pre- 20th century astronomer. How many stars would you expect to see (under some simple assumptions.
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One of the longest optical exposures of single region of the sky (11.3 day exposure in multiple bands) Area is about 10% of area of full moon (0.02 sq.
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