Questions tagged [stars]
For questions about luminous spheres of plasma held together by their own gravity, generally comprised primarily of hydrogen and helium.
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What would sunsets look like around different star types? [migrated]
I have always wondered what a sunset would look like around different types of stars. I have tried to do some research into the types of light refraction, but I cannot find any answers anywhere, and ...
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Can I cause a star to go supernova by altering the four fundamental forces?
I have the Scientocratic Hivemind. It has the ability to create and envelop things in a magic field. Within this field, it can choose to strengthen or weaken the four fundamental forces governing the ...
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How many Consciousnesses could exist in a Matrioshka brain built around an O class star [closed]
(Note I am both autistic and new to this platform, I might not word or ask questions well and I might make questions confusing so if I do something wrong please tell me how to fix it)
So a ...
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Can a star that initially started with less energy output than the sun (when it was young) evolve to be as luminous as the sun in the same time period
According to this work and worldbuilding pasta’s predictions on the water condensation inner limit for stellar habitable zones, a star like the sun cannot have a planet with liquid water on its ...
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Would you be able to look directly at the Sun if it were a red giant?
For the moment, let's ignore the fact that the Sun is theorized to swallow Earth when it does decay into a red giant. We will pretend that it gets big enough to eat Venus, and stops there.
It will ...
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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),...
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Stability in my habitable planet orbiting a binary system (Solved)
I'm making a worldbuilding project mainly focussed arround an habitable planet that orbits a binary system and I have a question about my system.
My planetary system is an S-type (A main star in the ...
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How bright would it be at night on my planet?
My planet is in a binary star system where the second star orbits from pretty far off, about double Neptune's orbit. I've already confirmed that the star will be visible during the day, but how bright ...
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Binary Star System Physics
I am envisioning a planet that has two orbiting stars: a small yellow-white F class and a larger orange K class star. The stars were once closer and created a more tumultous tectonic history but since ...
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Would this star be visible in the sky during the day?
From the surface of an earthlike planet orbiting star 1, would start 2 be visible during the day?
Would it have any noticeable effect on the light level at night?
Star 1:
Class:
Main sequence type ...
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Is it possible for a type 3 civilisation to use a blackhole bomb to stop a gamma ray burst?
A gamma-ray burst can be caused for multiple reasons. Some of the more common ones is that either a supermassive star undergoes a supernova and collapses into a black hole, two neutron stars collide, ...
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How can the stars be wrong, so that an observer realises they're not in our world anymore?
There is a common trope in fiction: when a character find themselves in a dark place out of this reality (somewhere in the eldritch realms, dreamscapes, lost cities of Carcosa or R'lyeh, etc), at ...
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The rotation of the sun's core doubles in speed every 10 years. How many years before the situation turns apocalyptical?
I'm asking this because I'm writing a fictional story where I need a doomsday scenario that means humanity must escape the earth. The timeframe that would fit the plot of the story would be in the ...
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Necessary distance for an ammonia world from Toliman
I am designing a planet that orbits the star Toliman, (Alpha Centauri B), which orbits well beyond the conventional Goldilocks zone. This planet has a similar radius to earth (6240 km) but its mass is ...
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A calendar/timekeeping system based only on the stars?
I'm playing with an otherwise earthlike world where I have handwaved away the visible sun and moon: anytime you look at a cloudless sky, you see stars, and only stars. How can the people of this world ...
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