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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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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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
126 views

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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3 votes
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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0 votes
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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
318 views

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 ...
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15 votes
11 answers
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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 ...
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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?
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7 votes
2 answers
587 views

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 ...
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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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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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0 votes
3 answers
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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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6 votes
3 answers
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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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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
262 views

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 ...
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3 votes
2 answers
98 views

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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6 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 ...
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4 votes
2 answers
92 views

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 ...
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3 votes
3 answers
138 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 ...
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6 votes
4 answers
657 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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3 votes
1 answer
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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 ...
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11 votes
1 answer
1k views

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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7 votes
1 answer
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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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5 votes
5 answers
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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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3 votes
1 answer
144 views

Damarian's Parameters: What are they?

For Damarian, I have its system starting to be worked out, and I even have the basics of Checuti and how Damarian orbits around its mother planet. (Link to my first question about this system is ...
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1 vote
1 answer
186 views

How long should a Life-Harboring Mega-Moon's orbit around its Mother Planet be?

Damarian, the world I'm building, is the largest moon of its gas giant planet, Checuti. Damarian's diameter is 19,113 km, but its gravity is nearly the same as Earth's (It' largely made out of a ...
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-1 votes
1 answer
98 views

A Hyperadvanced Civilization Had Created a Solar System From Scratch. Would the Specified Details Work?

Yes, you read that title right. A "hyperadvanced" civilization, an alien race with technology so advanced that we humans can currently dismiss it as alien-space-bat-magic. At the center of ...
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11 votes
3 answers
881 views

What are the atmospheric/planetary effects of having no solar wind?

Suppose we have an earthlike world orbiting an artificial star which produces light but no solar wind. I would like to understand the implications that a lack of solar wind would have for the planet. (...
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7 votes
1 answer
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A universal formula to predict which gas can or cannot stay within bound of a natural satellite or planet?

Given the following graph: , Relations exist among the escape velocities, molar masses of gases and the masses of natural planets and satellites. Is there a general math formula where inserting a ...
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2 votes
2 answers
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Light reflecting off a gas giant onto its moon

Okay, thanks to Ash, I know how to calculate the percent power of light hitting a planet at various angles. It is equal to cos(θ)2, where θ is the incident angle. I have a gas giant with a radius of ...
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1 vote
1 answer
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Predict The Orbital Eccentricity Of A Planet In A Circumbinary Orbit

Okay, I have a planet smaller than Earth that has a mean orbital radius of .9 AU, and it orbits twin suns. The larger sun has a mass of 1.15 solar masses, and the smaller sun has an mass of .45 solar ...
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3 votes
2 answers
243 views

Minimum Safe Distance From Planet-Destroying Event

Okay, I have this villain who's able to create supernova-like explosions from his body that release a total energy of 1.67x10^39 J, and the heroes stop him from destroying Earth by portalling him away ...
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1 vote
2 answers
100 views

Possibility of Life in a solar system given these conditions?

Scenario I’m creating a fictional world and I wanted it to be semi-realistic and I’m starting out by creating the Solar system and while I am no astronomer I did some research and found that K-type ...
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1 vote
0 answers
42 views

In this infant (<500 million years) solar system, how far would each orbit be to be stable?

Here's the story: There is a solar system that is still a baby, less than 500 million years old. There are a total of eight stars clumped into four binaries, each one with its own habitable zone. ...
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10 votes
10 answers
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What kind of catastrophic phenomena could cause a solar system to be wiped out with little to no warning?

It's a pretty simple question: imagine you have a solar system about the same size as our current one. This solar system is close enough to nearby colonies that most observatories can see the planets ...
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7 votes
3 answers
698 views

Plausibility of an atmosphere on the furthermost planet of a solar system

Atmospheres like Earth's or Mars would freeze and precipitate towards the surface if the planets were to be moved very far away from the Sun, since the light that reaches that far is incredibly dim ...
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-1 votes
1 answer
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What Kinds of Gas Giants Would Work Best in Orbiting an Orange-Dwarf Binary?

The term "gas giant" is, surprisingly, not uniform. It turns out that there are far more to the gas giants than Jovian or Saturnian. I won't list you all of them, just those that I find ...
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6 votes
2 answers
229 views

Influence of an inner gas giant over a solar system

I'm designing a solar system with three planets in its hot zone, two in its cold zone and three in its habitable zone. All of the planets are rocky worlds of various sizes, except for the middle world ...
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8 votes
2 answers
215 views

What would be the climate patterns on a lush life-bearing moon orbiting a gas giant in the goldilocks zone?

The moon would be similar to Earth in size and composition and the gas giant comparable to neptune or uranus. Will the periods of eclipse of the the giant have an effect on climate? What about the ...
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0 votes
1 answer
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Would Sean Raymond's "Ultimate Solar System" Work in This Particular System?

Presented here is a system in which a binary of orange dwarves orbits a binary of yellow dwarves. Each yellow dwarf is 105% as wide, 110% as massive and 126% as bright as our sun. Each orange dwarf ...
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2 votes
3 answers
95 views

Can periodic gravitational tug and pull of binary star ensure that a planet stays extremely tectonically active?

There's a binary star system with a close pair of stars ( A1 V and G2 V), in which there's a rough analogue of our Mercury that orbits both of them - a planet that's supposed to be closest to the pair ...
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10 votes
6 answers
3k views

A Habitable Zone Within a Habitable Zone--Would that Make any Difference?

Presented here is a quaternary solar system consisting of two binary orbits. One consists of two red giants, each one 100 times as wide, one-third as massive and 100 times as bright as our sun. Both ...
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7 votes
7 answers
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Would we see aliens on Europa?

If aliens were to bring a space ship to the solar system, and put it in orbit around a Jupiter moon, and then begin colonising the surface of the planet, what would we be able to see from using ...
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3 votes
2 answers
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Maximum shell world planet size with earth-like conditions

I am trying to work out the theoretical limits on the size of a shell world (made with orbital rings constructed around a black hole). I have the following constraints: The light to the planet must ...
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