Posts tagged stars
In my story, reasonably far in the future, an intrepid group of explorers are on the first manned mission to the Andromeda galaxy, travelling close to the speed of light. They slumbered in suspende...
I'm currently designing an advanced alien race that has found a way to prevent its host star from dying. But I'm not sure how exactly would that happen. So my question is, "How could you prevent ...
I ran a quick calculation, and the mass of iron required to form a black hole is on the order of 10^40kg. So, suppose that in my story there is this almost much iron available to somehow be brough...
The scenario is based on the fact that a tight binary of two neutron stars does not hold for long: The two bodies lose energy in the form of gravitational waves and they spiral towards each other a...
I'm trying to construct a solar system, and I'm toying with the idea that the planet capable of sustaining life was initially outside of the habitable zone, but the star's advanced age has caused t...
Brown dwarfs are celestial bodies in the gray area between planet and star. They're huge, gaseous, hot compared to planets, and come in all different kinds. (1) Is it possible for life to develop...
I'm in the opening stages of writing (yet another) star system generator, using Python. My goal is to be able to generate a plausible star and, if appropriate, planetary system around it - allowing...
I'm trying to make a trinary star system but I'm not sure how it would work. The primary star is an M0Ve star (red dwarf flare star). The orbits of the other two stars are slightly more complicated...
A common, matter-efficient science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. These habitats have been imagined as s...
I bring you all to the planet Krikkit, stuck in a star system enshrouded by a large dust cloud which prevents the Krikkiters from seeing the rest of the galaxy - and, by extension, the universe. Th...
Allright, what i'm asking is how life would be like on Earth (which pretends Earth could develop life in the "short" life of a blue giant) if we had two blue giants in the sky instead of the Sun?
In the book 2010: Odyssey Two by Arthur C. Clarke, Jupiter is turned into a star. Presumably this is done by making it more dense, so if Jupiter were to reach that density and become a star, what w...
Let's say I have a binary star system. The planet is orbiting the smallest star similar to the Sun at 1 AU, the same Earth-Sun distance. The other star is located at around 50-100 AU from the Sun...
This blog post about binary-star systems points out that, rather having the stars be close together, they could be far apart and a planet might orbit just one of them. It gives the example of the ...
I'm aware that 'tatooine' worlds don't make good habits for planets, normally. From what I've read, either a planet has to orbit one star really closely, or orbit both stars from a really long dist...
Would a Dyson sphere make a red dwarf appear to be a Brown Dwarf? Would it disguise a star enough to misidentify it what size it is? I'm just wondering if it could be possible that some Dyson sph...
Within our local region of space are several hundred/thousand stars. I had long ago found some pretty good resources and made a starmap (using YGraph and some star catalog datasets I got from Nyra...
This question is a sort of follow-up to Samuel's previous world map question, Creating a realistic world(s) map - planetary systems. Lots of science fiction stories involve journeying to nearby st...
Recent news reported the discovery of three "earth-like" planets in the TRAPPIST-1 system. This is interesting because the star is a small, cool red dwarf about the size of Jupiter. The three pla...
The Scenario: A group of scientists on a research space station are conducting tests on a Bose-Einstein condensate. They can't figure out why it is that every time they get their condensate to for...
My civilization is highly advanced Type III and wants to conduct an experiment on a red dwarf. They want to artificially cause it to become a blue dwarf, then a white dwarf and then finally a black...
So in my world there is a planet orbiting a star, which is in a far binary system with another star. Is there any formula to calculate when the distant star would be visible - times of year and/or ...
I want to know if this is physically possible. So at first I thought I was nuts. Then I started reading about Hill Radii, and googled left and right. Turns out a Hill Sphere is the region around an...
Suppose that a planet whose size was somewhere between the sizes of Mercury and Jupiter impacted the Sun. Would such an event change local stellar activity sufficiently enough and for long enough ...
So I was reading this article recently, titled Stellar Outburst Brings Water Snow Line into View: http://www.eso.org/public/news/eso1626. In short it's about a protoplanetary accretion disc around ...
Is it possible to calculate/estimate the size of a star's heliosphere? If so, how? I am working on a semi-near future, sci-fi novel. As part of the technology base, humans are able to travel betwe...
I'm looking for a star system between 15 and 36 ly from Sun with these characteristics: composed by 2 or more stars one of the stars should be a late G/ K type star (it doesn't matter for the ot...
So, here's my issue. My setting's central conceit is that a myriad of human societies developed at relatively concurrent times across a large system separated by only a few light-hours. (There are,...
In this alternate scenario, Earth is the third planet in a binary star system. One star is a K-type main sequence star--or "orange dwarf"--that has 80% the mass of a G-type main sequence star--or ...
To clarify on the title, K-type main-sequence stars--shortened as "orange dwarves"--are subjects of excitement for astronomers and astrobiologists. Why? They emit enough radiation to provide a...
So, you have the big bad race, whose extermination method is basically to force stars to go supercritical via the power of handwavium. You can assume 1 solar mass for each, but you can change it if...
Part of a series I'm starting since the recent What could make a star green? did quite well and others could use the information here in their worlds. There aren't any "violet" stars. When a ...
I have a binary star system and have come up with some stats for it. My primary star is an F-type, with a mass of 1.3 sols and a luminosity of 2.197 sols. My secondary star is a K-type, with a mas...
Basis We are in the universe we call our own, on the planet we call Earth, in the physics-set and known reality we assume. There is no flat-out "magic" or other things along those lines, so far a...
Language revolving around the Sun would probably not be used on a planet with a different star, right? For example, if a planet was orbiting Sirius, "siriuslight" or "siriusburn" seems a tad clunky...
Self-explanatory. After my previous question about a sextenary star system and a black hole, I decided to dial back to just two parent stars and a planet. How close could they be if we in the real ...
I sometimes think about the arrogant dwarf starsmiths in the question. How to blow up a star by accident? I pose the question in the voice of the dwarf, probably because I am hungry for down votes...
The admiral of a space fleet that belongs to a Type 3 civilization has been given orders to obliterate all planets within the habitable zone of a Sun like star. Some of the planets have been ident...
I'm trying to design a world in the Alcyone A system of the Pleiades. Alcyone A consists of three stars. The main star is 3.4-3.8 solar masses. There is a very low mass star < 15 million miles ...
I am envisioning a world around a red dwarf star. The planet has violent and accelerated (due to higher geological activity) plate tectonics and has a magnetic field about 75% the strength of the E...
My first post here, and it's more about destroying worlds than making them. Consider this scenario: An earthlike planet where a powerful magic spell has been cast, protecting all positrons from a...
Suppose that I have come into possession of a substance, technology, or spell that functions as a perfect insulator and reflector. No energy can pass through it, and is instead reflected back the w...
The inspiration came from the music in the title sequence of the film Alien. The idea is a planet that humans have colonized where it's almost always drizzling slightly. It's always dark but there...
Here I began exploring appearances of binary stars when standing on a planet. The planet orbits both stars. I've established through the help of this community that there are times that the two s...
I'm seeking a hard science setting for a piece of xenofiction with a decidedly non-sciencey feel. That said, there is no magic or magic technology. The idea is as follows: A red dwarf star has a...
I am revising my first draft and trying to add more evocative details. Here, I asked whether stars in a binary system are likely to fall on the ecliptic. As my hero hikes through the day and su...
You are native to a planet that falls between two suns, thus ensuring eternal sunshine. How would we be able to tell the time? Do you formulate some kind of system based on which sun is in the sky...
I am thinking about using Groombridge 1618 as a setting for my world. It is a main sequence star of spectral type K7.5 Ve, 67% of the Sun's mass. The habitable zone is at a radius of 0.26"“0.56 AU...
This one source is stating a desert planet the size of Earth could maintain habitability at 0.38 AU from a sun-like star, but I highly doubt this is possible. What are some factors that could make ...
I want to know whether or not my starship's cordinate system is efficient or not. Soon after my race flew into the stars, we realised we needed to be able to tell where we were. We need coordinate ...
