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6 votes
2 answers
857 views

Is this scaling of JWST halo reasonably correct

After thinking about accurately visualizing the size of the Andromeda galaxy I began to wonder about the halo orbit of the James Webb Space Telescope. Using an estimate of 1.5E6 km for halo width and ...
BradV's user avatar
  • 767
2 votes
1 answer
409 views

Does the Sun twinkle?

Does our solar system have enough bodies in orbit to appear to twinkle to another distant solar system viewed from the side? https://en.wikipedia.org/wiki/List_of_asteroid-discovering_observatories ...
Muze's user avatar
  • 1
2 votes
1 answer
809 views

What is the Terra phase?

Does the Moon have a night and day like Earth? When sitting on the Moon and viewing the Earth what does it look like when the Earth goes through phases like the Lunar Phase? How does the sun travel ...
Muze's user avatar
  • 1