Questions tagged [solar-system]

For questions regarding a star and the area comprising its gravitational dominance. While they are not part of its technical definition, it colloquially refers to the planets, moons, asteroids and other bodies orbiting the star.

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How would a planet with three suns, orbiting only one work?

Okay, I am planning to make a planet that has three suns, and orbits one of them. Each of the suns has its own orbital path, so it's possible for the planet to have one sun, two suns, or three suns in ...
2 votes
1 answer
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Would my solar system work out?

I've been building my own story world with my friend which revolves around humans and different intelligent beings, and for one of the beings, I've came up with a planet and a solar system that is ...
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What problems, if any, does a low density cause in a planet larger than Earth in mass and radius?

I'm worldbuilding for a sci-fi setting with some help from old Artifexian videos, and have made a planet that's suitable for human habitation. However, as this planet is larger than Earth, to make the ...
3 votes
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How to estimate the average surface temperature of a planet? [closed]

If given: Planet mass Planet radius Planet orbital distance (perihelion and aphelion) Planet albedo Planet atmospheric composition Planet atmospheric pressure Star mass Star luminosity Is there any ...
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How plausible is my alien world? Hot Jupiter system with habitable planet?

The theoretical world of Hēdran is the 2nd planet of a 7 planet system. It lies within its star's (G1.4) habitable zone, but with a hot jupiter gas giant only ~1 AU away it experiences heavy ...
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Motivations for technologically advanced humans to abandon the solar system or a planet still habitable? [closed]

Let's say we are in the moderately distant future. For example, humans are technologically advanced enough so that interstellar travel is possible and Venus and Mars are terraformed. General ...
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How close the the star should i place my lava planet?

I am building a solar system with a k5v star at its center. Here are the some important stats for my star: Mass: 0.70 M Radius: 0.67 R Luminosity: 0.15 L Surface gravity (log g): 4.40cgs Temperature: ...
4 votes
2 answers
107 views

Can I make a Binary star system with a class G star and a black dwarf?

I am constructing my own cluster of solar systems for a story I'm working on and had the idea of adding a black dwarf somewhere to indicate the timeline of this story. My question is. Does a black ...
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Is it possible for a planet to not spin around its axis?

I'm currently reading a novel where the story happens on a planet orbiting Proxima Centaury. As the planet is very close to the star, which is a red dwarf, it is tidally locked to the star like our ...
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1 answer
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Can large stars have tidally locked worlds in their habitable zones?

I think the vast majority of space-enthusiasts has heard at some point that in order for a planet orbiting a red dwarf star to be habitable, it needs to be close enough to its parent star to sopport ...
6 votes
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How plausible is my solar system?

I am currently working on a world orbiting around a red dwarf star (M0V to M2V, I haven't decided yet) and I need some help with designing the solar system. My original plan was having 4 planets ...
6 votes
2 answers
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How would I make my Quintuple Star System Stable?

So I've been working on a star system that I want to have inhabitable planets, so by stable I mean stable on the timescale of the stars themselves; billions of years at least. So my initial plan was a ...
7 votes
2 answers
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How to make a world with very long tide cycle

I want to create a world for a story: Charybdis - a world of high tides. Very high tides. Tides that drag whole ocean around the world - or most of it - in a long cycle. It must lasts at least several ...
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How do I make my planet dimly lit but still habitable? [duplicate]

Currently I am making a solar system for a speculative evolution project, and I wanted my habitable planet to be really dark, while still being habitable (Preferably slightly colder of warmer then ...
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1 answer
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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 ...
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Where could artificial satellites be placed in a binary planet system?

I’m building a binary planet system, and I want to know where I could place large groups of satellites. I’m worried centrifugal force and coriolis effects will prevent a satellite from occupying any ...
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2 answers
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Is my map of prevailing winds on a binary planet realistic?

My binary planet consists of a Venus sized earth-like planet, tidally locked to a mars sized “super mercury”, with their centers separated by about 7 Venus radii. I know the coriolis effect would ...
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0 answers
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Questions about my binary planet system [closed]

I’ve recently designed a star system containing a habitable double planetary system, but I still have several questions to fill in I need answered. My binary planet is a Venus sized (mostly) Earth-...
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Can a planet with variable gravity have constant atmospheric pressure over the surface

This earth has roughly three to five times the radius and ten to twelve times the surface area of our earth And it lies in the center of toroidal planet (their equatorial planes line up perfectly). ...
4 votes
2 answers
96 views

Are there Tides Affecting Stellar Brightness?

I'm working on a fantasy story set in a slightly modified version of the Trappist-1 system (all orbits are perfectly resonant rather than only nearly so), and I am trying to get as good of an ...
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4 votes
2 answers
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Seasons of an exomoon in a binary star systems

In my story, I have an superhabitable exomoon that is tidally locked to a gas giant (a planet similar to Saturn with the rings, but slightly smaller). This gas giant is in an s-type orbit of a binary ...
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3 answers
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How close can my brown dwarf orbit the sun and still realistically be undetected? [duplicate]

I have an idea to put another life-bearing planet in the solar system. You could have a brown dwarf orbiting perpendicular to the solar ecliptic. It's a brown dwarf so that it can send infrared ...
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6 votes
2 answers
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How close to themselves could be two planets orbits?

There's some pattern within our solar system and many others as well such as the planetary orbits lay within some gradually increasing distances. I assume they could be spread less regularly (looking ...
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4 answers
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The plausibility of Rock comets and Molten Asteroids

If a stony asteroid get so close to it parent star that the siliceous rock would get hot enough to melt, What would happen? Would the rock turn straight into vapor and form a comet tail line like in ...
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4 votes
4 answers
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What are the odds of a binary solar eclipse?

I'm currently creating my own binary star system which includes a circumbinary planet that has two moons. For simplicity's sake, the stars, planet, and moons are comparable in size to our own Sun, ...
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The Geodynamics of Tidally Locked Planets

Would the tidal forces of the star a tidally locked world orbits have any effects on the Geodynamics of the planet? I imagine that the tidal forces would pull the crust thin at the Terminator making a ...
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9 votes
1 answer
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How far away from earth could atomic weapon detonations be detected?

Let us suppose that ten high kiloton to low megaton range fission/fusion weapons are being detonated between three and five kilometers under the surface of the sea on a planet much like earth, in a ...
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10 votes
3 answers
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Living around a quark star

Let's assume the theoretical quark star exists - and humans have found it. There's a planet orbiting it, and for the purposes of my story, I want it to be habitable. My question is: Can you have a ...
15 votes
11 answers
3k views

Is an oval goldilocks zone possible?

Not much else to the question. I want a solar system which has a habitable planet with a pretty exaggerated elliptical orbit, one that's definitely going to need to be in a solar system with an oval ...
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7 votes
2 answers
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Verifying Habitability/ Feasibility of my Conworld

Right, lets try this again. I'm making a planet for a book I'm writing. I want to know if the planet I outline here is scientifically probable, able to support life, and what the climate would ...
6 votes
6 answers
2k views

Can mirrors on the moon allow solar panels to operate at night?

Solar panels cannot operate at night. If we put self-adjusting mirrors on the near side of the moon, they could reflect sunlight back to the dark Earth, allowing solar panels to operate at night. How ...
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2 votes
1 answer
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Can a moon be asymmetric?

I'm writing a story related to 'symmetry' and would like to detonate an asymmetric moon. Would gravity allow this? Could a moon be any other shape but round?
7 votes
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What would cause regular EMP bombardments on Earth?

In the SF/post-Apocalyptic world that I'm building, the Earth is struck by interplanetary EMP bombardments that destroy most electronics. The year is around 2040~50, and the tech level is bumped back ...
7 votes
4 answers
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Is it possible to have a solar system where none of the celestial bodies seem to be rotating or orbiting?

Individual tidally locked planets or moons are a relatively common topic, but I was wondering if it would at all be possible for an entire solar system's celestial bodies to orbit and rotate at just ...
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4 votes
3 answers
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Can cosmic rays be considered as a "galactic resource" in a hypothetical planetary colonization science fiction world?

Like a star's energy, planetary biomass, etc are precious resources for any spacefaring civilization. Can cosmic rays (for producing energy, causing beneficial but erratic effects like hulk's body ...
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Is a Habitable Planet With Three Suns and a Moon Realistic?

On this planet, which is mostly arid and dominated by large deserts and expansive steppes and savannahs, the sun rises once, and then two more times in the morning, and throughout the night an ...
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7 votes
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How big of a problem would UV radiation be for colonists around a main sequence blue star?

I've settled on using a blue star for my setting. It'll probably either be a small B or large A-type main sequence star, somewhere between 2 and 4 solar masses. There is one relevant planet. I've ...
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2 votes
1 answer
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Would This Solar System Be Stable?

The question isn't whether this system would be natural or artificial--it'd work either way. At the center of this solar system is a binary of yellow dwarves, each one rated F5 (120% the diameter, 130%...
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2 votes
2 answers
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Stellar/planetary configuration to maximize number of solar eclipses

On Earth, the planet has a single moon and a single sun. And as long as the moon stays within a certain proximity of Earth (apparently, it's slowly drifting further away), a total eclipse occurs at a ...
3 votes
2 answers
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Could neutron flux from a hotter primary star/keep a brown dwarf burning?

Brown dwarfs are the smallest class of star ranging from 13 to 80 times the mass of Jupiter, 0.01-0.08 solar masses; it is thought that they are stars only because fusion reactions involving hydrogen'...
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8 votes
6 answers
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Could an Irregular Orbit Cause Significantly Longer Seasons?

I have a fantasy world I'm making, with a planet and sun similar to our world, except the length of the seasons are significantly longer. Each of the seasons last two years, and the full seasonal ...
4 votes
2 answers
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Lasting spectral trace from funeral rites

So burial in space has been a thing in more sci-fi properties than I can count, and I've always wondered how long evidence of such a practice would last. In interstellar space there is little to ...
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2 votes
1 answer
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Does this F-star solar system make sense?

The setting for the narrative project me and my team are working on is a solar system with centred by an F-star 1.3 to 1.32 times more massive than the sun aged 2.5 to 3 Billion years. Here is how the ...
4 votes
3 answers
158 views

Is this habitable moon formation scenario plausible?

My and my teams' works take place on a moon orbiting as giant about 3 times the mass of jupiter (possessing also a massive moon system) in a solar system with an F-star and be either the first, third ...
6 votes
4 answers
669 views

Is it possible to create ice on a planets equator using planetary rings?

I was looking into creating a planet with an icy ring around the equator while also having ice at the poles and bands of warm/tropical areas in between. The way I thought to do this would be having ...
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2 votes
2 answers
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Is there a mathematical way to calculate the density, volume, etc of a planet just using mass as data?

while I was working on the language I was thinking about the planet and I don't have the mathematical data, I have a fairly done map but not the data and it would be interesting to add it. As data I ...
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How would a near light speed impact on Jupiter affect the planet and the solar system? [closed]

The object was originally "fired" as a weapon used from space to hit planets.let's say it is a long cylinder with a very high density and it was accelerated at some point to 90% of C. The ...
12 votes
1 answer
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Trying to survive a passing neutron star by burrowing deep in the planet's crust?

Situation: My colony is threatened by a passing neutron star. It turns out this planet is part of a binary system and once every several hundred years it passes by a neutron star, which irradiates its ...
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What would happen if the sun shrunk by 25% in 2000 years?

The big bad vilain is stealing energy from our sun. He has been doing this for 2000 years and the sun has already shrunk in mass by 25%. What are the effects on our earth. From what i found here and ...
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Is there a way for a permanent Lunar eclipse, or another Object to always be in Earth's shadow?

I have a question regarding worldbuilding and haven't found a question like this yet, so I created an account and hope that someone can answer it :D As a starting point, imagine our real-life Sun, ...

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