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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Is it possible for two stars to orbit a planet? [duplicate]
I recently learned about circumbinary planets ("recently" as in a few minutes ago) and I saw that there are cases in which a planet can orbit around one star, yet its orbit is close enough ...
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Building a planetary system: realistic orbits, with regard to dynamical evolution
I'm attempting to nail down concrete details of a planetary system I've been working on. Working from the top down, I think it's necessary to determine orbital characteristics of the planets first.
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Would the period of a binary planetary system have any reason to fit evenly in with the orbital period around its star?
I'm worldbuilding a binary planetary system - the orbit of the system around the star can be slightly elliptical, but I'd prefer only slightly. The star mass is ~0.72 solar mass, and the two planets ...
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Time in a world that is closer to their Sun [closed]
Setting: It is millions of years in the future and the sun has expanded, making it closer to Earth. The human species has survived but lives in a very different world. Think something like Mars, but ...
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How would a Hot Jupiter work in a P-Type Binary System?
This is my first time using the board so sorry for any mistakes.
I am currently designing a stellar System for my fantasy world. It is a P-Type Binary system which I have based upon a modified Keplar-...
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Astro-Mechanics: Plausibility check for binary system merge
I have a binary system composed primary about a brown dwarf and a k6.6V star that's the fusion of the system 1 and 2 7.41 billion years ago, I'll tell you the story and I'll ask the question after the ...
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The Strange Asteroid: How a Density-Fluctuating Intruder Could Disturb Our Solar System
If a mysterious asteroid with fluctuating density and an unpredictable gravitational field were to enter our solar system, how would its gravitational disturbances impact the orbits and stability of ...
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Could a cold hycean planet form in a system with terrestrial planets and gas giants?
This is a star system populated with terrestrial planets on the inside and gas giants past the frostline, like in our solar system. Call it a "classical solar system" if you will. My ...
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How do I find the correct planetary spacing for my red dwarf system?
I have a system with a K6.7V star at 0.585 M☉.
The planetary system has 7 orbits --
A tiny, rocky planet at 0.043 AU with a mass of 0.0465 M⊕.
A tidally locked, habitable, water world planet at 0.34 ...
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Is it theoretically possible for a planet to orbit a star that is orbiting a black hole outside of the event horizon? And what would it look like? [closed]
I have written a book in which a planet orbits a star that orbits a black hole. I would like to know if this concept is completely impossible, or if it could, in theory, occur. I realize this all ...
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Highly Visible Comet in the Sky
There is a comet in my world which passes my world's version of Earth every 25 years. I'm having difficulty figuring out how to make the comet fit my requirements.
Requirements:
Passes my planet only ...
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Permanent Full moon via "Magic"
The Problem
I had in mind giving my world a permanent full moon for a long time. Though I generally ran into 2 problems along the way.
Firstly I wanted of course to make it appear as if it was always ...
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Can I create a world of stationary planets? [closed]
I have created this massive world composed of 15+ planets, all elevated in space, surrounded by stars and countless other uninhabited/desolate planets. Is this even possible? Do I have to create a ...
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How close to a star could a dense asteroid belt reasonably form?
I would like to have an asteroid belt "close" to a star. I want it to contain "large" asteroids. Is this plausible?
I believe the location of our real life asteroid belt is ...
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Hiding a star cluster
I have a concept involving the colonisation of a star cluster by ideological outcasts who want to be left alone. Is it possible for them to either totally physically hide this cluster (presumably ...
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what shape would a planet entirely dedicated to watching be [closed]
If I have a planet fully dedicated to watching (think the Eye from Magnus Archives) what shape would allow for constant observation of the whole planet from some sort of tower
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Could a planet be ejected from a system by a rogue planet? (possibly in a binary pairing)
Assuming an earth-like Solar System with an earth-like planet, would it be possible for a rogue planet travelling at a high speed to disrupt the earth-like planet's orbit so as to leave the solar ...
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Implications of Venus and Mars having the same mass as Earth
Could anyone advise if there have been any simulations on the long term stability of our solar system if Venus and Mars both had the same mass as Earth ?
If not, is this something that can be answered ...
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Could this hypothetical Super-Earth support human life?
The Question Could this hypothetical Super-Earth (Planet Y) support the lives of human settlers arriving from off world, or have I created any reasons for the planet to be inhospitable?
Planet Y
Star: ...
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Plausibility of life emerging and evolving on gas giant moons?
I have been working on the setting for a hard speculative biology/evolution project that for now will simply be referred to as the Gemini Project, and the main issue I've been having is whether or not ...
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Could a captured planet end up in the habitable zone of a new star system?
Is it possible for a planet to be ejected from one star system and end up in the habitable zone of another? Or do captured planets always end up in wide, eccentric orbits?
I guess in the vast expanse ...
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How do I make an Earth-like habitable planet tidally locked to a red supergiant (class L or M)?
Assuming tidally locked planets have the potential to be inhabitable: Is there any way for a planet of Earth-like size to become tidally locked to a red supergiant of class L or M?
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Calculating distance of the frost- and ice line
To begin, my star is a K type star with 0.65 solar masses.
I've inserted my star's mass in two different templates to calculate the frost line, yielding different results (2 AU and 2.68 AU).
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How could an Earthlike planet have two moons, one similar to the Earth's moon and the other primarily composed of carbon? [closed]
I am building an Earthlike planet that possesses two moons, one similar to the Earth's in terms of chemical composition and one primarily composed of carbon. How could these two moons form? Which moon ...
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How would a civilization of techno-barbarians maintain their space ships?
Recently I've gotten interested in the planetary romance genre and the idea of a sword, sorcery and spaceships genre.
So here's the dynamic is basically something like this.
There is a star system ...
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What star would cause a planet to have white plants?
Okay, I'm trying to make a planet that has at least part of its surface, or at least part of its underground, habitable for humans (breathable atmosphere at a suitable pressure, a suitable level of ...
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What would happen if a Europa-like moon "thawed"? [closed]
I have a planet and moon system orbiting a high mass star, something like a type A main sequence. Everything is only a short two billion years old, but the star is already starting to expand, warming ...
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Is a p-type binary system with two suns and two moons possible? [closed]
I want to have a fantasy setting with two suns and two moons. Ideally, the stars would be 5 million km apart, orbit each other every 10 days, and pass in front of each other every 5 days, creating an ...
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How far in between a K-Type Star and a Planet would there need to be in order for there to be a very rare eclipse inside a S-Type Binary System?
Here I have posted a diagram I have made for my planet's solar system that I think may be correct.
For background understanding: My Main Planet is orbiting a G-Type Star in this binary system, whereas ...
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If possible, what would be the conditions for a planet like Earth to have an emerald green sky in its twilight zone? [closed]
Regardless, how can I get an idea of how the color of starlight, or any other natural phenomenon, impacts the color of the sky at different times of day?
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Is this a viable theoretical method of fast interplanetary space travel?
Let's say in the future humanity has traveled to all parts of the solar system, but they want to be able to travel between planets faster. In pursuit of this, they create massive space probes with ...
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What dictates whether an orbit gets disrupted or stabilised due to an orbital resonance?
Context:
I've got an asteroid belt analogue situated between a Gas giant and a Super-earth. I knew about resonances, so I started calculating them and placing some of them in the belt, especially ones ...
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What would be the size of the outer asteroid belt in this system?
I am following the Artifexia-like system building with the calculator. Per the calculator, my system looks like this:
I am having trouble calculating the inner and outer limits of the second asteroid ...
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Jupiter's moon Europa - is it possible to colonize Europa? [closed]
So basically, I have to write a thesis paper because I'm in the last year of high school. It is an independent research project and the culminating work of my studies in school, so it represents my ...
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How would these characteristics of a habitable planet in a triple star system affect the needed aspects of having two moons?
If a habitable planet is in a hierarchical triple star system (not unlike alpha Centauri) and has two moons but has a large torrid zone, what characteristics would my moons need to have in terms of ...
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What adaptations would be needed for life and water around a blue star?
Of course it's very obvious that blue stars are insanely hot and would boil away most things if they got too close. BUT I'm curious if with just the right adaptations and fiddling, could there, ...
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If a sun were orbiting around Earth, how far away and how big would it need to be to look similar to our sun?
So in my universe, there's only a single planet, contained within a spherical shell. Orbiting around it is a dragon, holding a "sun" for lack of a better word. This sun is not a star as we ...
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How To Calculate Moon Cycles To Cause A Lunar Event Every [250] Years?
My first post here, so friendly hello!
I need some bigger brains than mine, or just some other braincells to reverberate off of. I have a world with three moons and I'm trying to calculate the length ...
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What elements are usually in the planets near the sun?
This is a follow-up to my original question about my planets, but this one is mostly for a different planet.
Basically, I have a small terrestrial planet close to the Sun, about the size of Mercury. I'...
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How should I position my planets?
I'm working on a story about four planets around a star much like the Sun. But due to my (very limited) knowledge of gravity, I know that putting them too close together will cause them to collide or ...
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Suppose an array of mirrors 50 km above the surface reflect light straight down. How long before the sun rise are they illuminated?
Suppose at a point in the earth’s future, a superstructure has been built at the northern 45 parallel. 50 kilometers above sea level, a large array of mirrors has been built. The mirrors are ...
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How much time would take for Venus to generate a Magnetic Field?
Supposing that we managed to speed up Venus's rotation to a 24 hour cycle in just under 40 years (how we managed to do that is irrelevant here), how much time would take for Venus to form a magnetic ...
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Is there a way to find the dates that a solar eclipse happens while Ceres is in alignment with Earth? [closed]
In the game i'm working on the Earth was hit by a Coronal Mass Ejection during a solar eclipse. I'm looking for dates between 2100 and 2300 where a base on Ceres would be protected by being in the ...
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Can a habitable S-type planet and three habitable P-type planets exist in one binary star system?
In this solar system are two stars, named Genesis and Exodus. Currently, I don't know the types because the need of habitability on the planets might affect the requirements for these stars. They ...
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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 ...
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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 come 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 ...
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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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