All Questions
3 questions
6
votes
4
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What is a reasonable day length for a planet with 4 times earth radius?
The fictional planet has a mass of 18 times Earth's and four times earth's equatorial radiusreference. This gives it a gravitational acceleration of 11.02m/s^2 (1.29G) and an escape velocity of 23....
- 14.6k
15
votes
2
answers
590
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Rogue Planet Illuminated by Galactic Centre
The black hole question reminded me of an idea I wanted to implement at some point in a space campaign, but didn't go forward with because I was unsure whether it's merely statistically very ...
- 2,021
30
votes
4
answers
5k
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A planet illuminated by a black hole?
Is it possible for a planet to be heated and illuminated by a black hole due to Hawking radiation at the same intensity as by a star?
What mass and size should a black hole have to produce the same ...
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