Difference between revisions of "Miscellaneous"
From PGSC Wiki
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*If we go out at a clear night, how many stars can we see with naked eyes? | *If we go out at a clear night, how many stars can we see with naked eyes? | ||
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| + | *What is Vega? | ||
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| + | *What is the Cygnus loop? | ||
Revision as of 23:14, 11 December 2007
Questions that really don't belong in any category, even a new one... Scales:
- What are the masses and radii of the following objects: electron, proton, earth, sun, solar system, globular cluster, open cluster, galaxy cluster.
- What is the spatial extent of the visible universe?
- If we go out at a clear night, how many stars can we see with naked eyes?
- What is Vega?
- What is the Cygnus loop?
