All Questions
19 questions
2
votes
2
answers
142
views
Would it be possible for a somewhat distant bianary star system to have a planet orbiting their barycenter within both their orbits?
There are 2 stars in a binary system, 268 AU apart from each other. Both are about 1 solar mass.
Would it be possible for some planet to be orbiting their barycenter (the center mass of both starts),...
- 2,118
15
votes
3
answers
2k
views
What is the largest possible appearance of a celestial body in the sky?
In SciFi Art we often see planets/moons/stars fill enormous amounts of the visible sky. I'm wondering what the theoretical limit for this is realistically, since there are maxima for the possible size ...
- 78.5k
0
votes
1
answer
176
views
Various eclipses in a P-type binary star system?
Trying to make a world with a P-type binary star system, with a habitable planet orbiting around them, and one moon orbiting said planet. I am terrible with physics so I've been wondering if any of ...
CommunityBot
- 1
2
votes
2
answers
152
views
How to find visibility of stars given a certain moon brightness
How would you be able to calculate what magnitude of stars would be visible given a certain brightness of the moon. As I know that the visibility of stars are based on their compared magnitude to a ...
- 31k
18
votes
5
answers
7k
views
By what mechanism could a planet be locked into permanent solar eclipse?
I've got an image in my head of a world where it's just normal that the star is black with a golden halo around it - in other words, where the planet is in a state of perpetual solar eclipse.
Are ...
- 1
6
votes
2
answers
253
views
What would an eclipse with a translucent crystal moon look like?
What would an eclipse with a translucent crystal moon look like?
In one of my worlds, a special moon orbits the planet — it's made of a translucent crystal, blocking only 80% of the incoming light. It'...
- 7,566
4
votes
1
answer
197
views
How plausible is this planetary system with binary stars?
In my world, I have a binary S-type Solar System of Star-A and Star-B with these properties:
Star-A:
Luminosity: 0.86822 Sol / Mass: 0.98097 Sol / Radius: 0.91958 Sol / Radius of Hill Sphere: ~37.218 ...
CommunityBot
- 1
2
votes
3
answers
82
views
Is the following plausible: a moon at an L1 point orbits a gas giant, which orbits a sun. the moon is submerged in half daylight half moonlight
I'm writing a sci-fi & fantasy novel, I won't get into details, but in essence it's set on a fantasy moon that orbits a gas giant, which orbits a sun. The moon is at an L1 (Lagrange 1) point, and ...
- 31k
1
vote
2
answers
266
views
Is it plausible for a planet to have a face constantly sunlit while the other is constantly moonlit, with the sun/moonlit territories never changing?
I'm writing a sci-fi & fantasy novel, I won't get into details, but in essence it's set on a fantasy planet that orbits around a sun, and has a moon. The basic premise (that I'm hoping for anyway) ...
- 33
2
votes
2
answers
2k
views
How would day and night look like on a planet that orbits two suns? [duplicate]
I'm writing a fantasy story set in a p-type circumbinary system and I'd like to know how this would affect day and night, when the suns and moon would be visible, and the climate and seasons on the ...
- 42.3k
1
vote
3
answers
1k
views
What kind of power could be stronger than light and shadow? [closed]
I am creating a world where exist 2 main types of magic users: the ones with the ability to control the light of the sun and the ones with the ability to control the darkness of the shadows/moon. ...
- 14.3k
6
votes
1
answer
400
views
The Earth and Moon resolidify under a bluer star, their outer layers evaporated and burned away. What do they look like now?
(This is the third in a series of questions, starting with Moved into further orbits to protect them, how much damage do Earth and Moon take when the Sun expands? and How soon does the Earth's ...
- 460
10
votes
4
answers
5k
views
Would it be possible for an Earth-like planet to have multiple moons with diverse biomes capable of supporting life?
Thanks for taking a moment to help me understand the feasibility of this scenario. Essentially, what I am looking at is an Earth-like world that would be between 1.3x and 1.6x the mass of our own ...
- 620
3
votes
5
answers
662
views
How can this habitable planet have a moon with a naturally occurring atmosphere?
Assuming the planet is earth-like, with more surface water and atmospheric oxygen, and within the habitable zone of a sun-like star, how can a moon orbiting this planet retain a thick atmosphere?
The ...
- 31k
4
votes
1
answer
319
views
Could this moon of a gas giant orbiting a neutron star support life?
Making the following assumptions:
1. The three moons of the Gas Giant are safe enough distances from and massive enough not to pull each other apart or send themselves careening into the void.
2. ...
- 5,156
6
votes
1
answer
140
views
Defining the perceived appearance of a moon from a planetary surface
I have a homebrew setting with a moon that has some specific features orbiting an Earth sized planet, and I'm trying to find out how these features would affect how the moon looks from the surface of ...
- 306k
6
votes
3
answers
195
views
Can a moon cycle accelerate periodically?
I've been looking for information on this, but I haven't come upon an answer that could actually help me figure this out:
Imagine a planet, inhabited by somewhat "human" beings, that has one sun-like ...
CommunityBot
- 1
6
votes
2
answers
262
views
Magnetic Celestial Bodies in Orbit
What would be the effect of large magnetic celestial bodies orbiting each other?
Could a star have enough metallic content to become magnetic?
What would the effect be on magnetic planets in orbit ...
- 77.3k
3
votes
3
answers
410
views
Astronomical Phenomena that cause Tidal Waves
Suppose a world suddenly is being attacked by frequent tidal waves caused by some event in space. What type of event could have caused this?
Any side effects caused by the event, such as the release ...
- 102k