All Questions
8
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Ancient adjudication of the new moon from witness testimony
The ancient method of certifying the new moon in the Land of Israel in ancient times is described in Mishnah Rosh Hashanah 2:6. Witnesses would come to Jerusalem and testify before the Sanhedrin that ...
- 349
81
votes
6
answers
12k
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Is the Moon only 60x60 pixels?
In doing research on vision, I have learned that "20/20" vision corresponds to a visual acuity of being able to resolve details 1 arcminute in size, that most people have around 20/15 vision,...
- 1,121
5
votes
1
answer
246
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What is the apparent magnitude of the faintest stars visible during a full moon?
Assuming the viewer is far from any light pollution, it is a cloudless night, and humidity is very low. What is the faintest apparent magnitude of stars visible to the naked eye during a full moon (...
- 146
3
votes
2
answers
16k
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Why does the Moon sometimes look Yellow?
My friend and I both noticed that the Moon looked yellow Yesterday, but it wasn't like that the same time the day before, as far as I remember.
Does the Moon sometimes look Yellow? If it does, why ...
1
vote
1
answer
66
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Is it easier to see the young moon when it's closer to the sun?
With the naked eye, would it be easier to see the moon when it's close to the sun, because it might reflect some more light (or not, I'm not sure) or farther from the sun because the sun shines ...
- 126k
3
votes
3
answers
760
views
Why is the color of the moon so similar to the clouds?
Why the moon looks like the cloud-structure on the blue sky among the clouds?
11
votes
2
answers
1k
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How easy would be to see the Moon from Mars?
This question arises from "What planet is better than earth to infer solar system configuration?", where one of the answers pointed that it's easier to discover the Moon from Mars than discovering the ...
CommunityBot
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1
vote
0
answers
235
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How strong does a light source on the Moon have to be to be visible from Earth? [duplicate]
Flashes from some meteoroid impacts on the Moon can be seen with the naked eye. How much light must a future lunar base emit in order to be visible as a dot in the lunar night (like the flag of ...
- 11.4k