Writing Science Fiction novel and need some hypothetical space information?

Question

If a planet were to have three suns, not necessarily the strenght of ours, what would that planet be like? I was thinking desert-ish but I'm not sure.

Also, what is your best guess as to what would happen if a star went supernova (or some sort of equally large explosion) inside a black hole? Would the two counter act one anothers affect, possibly create a new something (star, planet, etc.) in it's place?

I know it's fiction so I can technically make up whatever I want, but I want it to be semi-realistic. You don't want the reader to lose interest because what you've done sounds unplausable.

Thanks for your input!!

I'm not putting a star in a black hole, hence the "hypothetical" part, I'm putting a supernova like explosion in a black hole-maybe. But I appreciate the critism.

The planet with three suns is out, as the orbit wouldn't work. All the input was helpful, thank you!!

Answer 1

I saw on a science program that any planet orbiting a binary star system would have an erratic orbit because of it being tugged around by both stars. The plant would sometimes pass between the suns and be overheated, and sometimes would be flung far away and freeze. The stars could either rip the planet apart into rings like Saturn has, or at least tug on it so much that it would at least be as volcanic as Jupiter's moon Io (Io is caught in a tug of war between Jupiter and several other large moons which constantly heat the interior). Or the planet might be slingshot out into deep space forever and freeze.

You could probably have a planet orbiting a star, where the star itself oribits another binary star pair that is far away. The pair would be as bright as the moon in the night sky, if not brighter.

I don't think that you can have a supernova in a black hole, since the black hole is what is left over from a supernova explosion. But no one knows what is in a black hole, so you can say anything that you want.

Answer 2

Planets are unlikely to have stable orbits even with two suns because of the constantly changing gravitational field as they revolved around each other. The only way that would be remotely feasible is if the two stars formed a close binary and the planet was far enough away so it seemed like they were a single gravitational source - but that would probably be so far that the planet wouldn't be warm enough to support life.

Triple star systems actually exist in this configuration, with two close together and the other far away, and there are even quadruple systems with two close doubles orbiting each other. You could imagine a close double with planets, one of which is a star - but that star would be very massive compared with the planets and would create gravitational (and radiational) havoc no matter how you did it. A final possibility is if the third star had its own planets, and that system and the double star revolved around each other...

Stars don't exist in black holes, unless you think of the universe as a black hole (because light doesn't escape the universe). It is true that the density of a black hole decreases with size, though, so you could imagine a region of space which is invisible from the outside but could contain its own miniverse inside.

Answer 3

You could have a supernova inside a big (galaxy-sized) black hole. It wouldn't be visible from outside or have any noticable effect on the black hole. Re-organizing energy inside a black hole (no matter how violent) has essentially no effect on the outside.

Three suns do not necessarily a desert planet make. It's one of the foolish conceits of sci-fi that any planet anyone invents is everywhere like some region of Earth---there are desert planets, and marsh planets, and jungle planets, and island paradise planets. How come none of thes planets has the variety of climates (or perhaps even more extreme variations) than Earth?

Answer 4

if you want to be semi-realistic how could you possibly postulate the idea of having a supernova inside a black hole? Haven't you read the smallest bit of info about what they are?

As for having 3 suns its easy to say, yeah it would be a desert - more likely a ball of lava (venus has one sun but the surface is hot enough to melt lead) but if there are 3 suns its going to have a complicated orbit and is likely to crash in to one before intelligent life can evolve. A binary system is a bit more likely - with one larger star and one orbiting it like a planet in place of a gas giant, say.

I'd hit the books if I was you. A lot of science fiction authors are very good with their science. If you just make it up a lot of people will be put off.

Answer 5

As for the three suns it would depend on distance from the planet the strength of the suns, the atmosphere the planet has, and what the planet is made of ( Rock, gas, water etc).
As for the supernova in a black hole thats anyones guess

Answer 6

Three masses large enough to be stars would wreck havoc with any planet because of shifting and massive gravitational forces. A black hole would swallow a star with not much more than a burp. In Science Fiction, it is the social and political commentary you can get away with that is more important than the gadgets and wiz-bang

Answer 7

When a blackhole seperates from its current universe it will instantly cause a big bang and create a new universe. It instantly explodes at the point of seperation as there would be nothing to contain it.

A supernova occurs when the planet's gravity becomes stronger than the planets ability to stay 'inflated' in a simple explaination. The seperated blackhole going into a big bang is the opposite of that.
The bigbang occurs as there is no gravity to hold it together and all the energy stuck in the singualrity is expelled in a big bang. Gravity is then created by the stretching of the universe. Each piece of mass flying around from the epicenter of the big bang stretches the fabric of space and gravity is the result.

An example. If somehow you can plot a grid in space and mark exactly where the earth currently is. If you were to remove earth from the grid you would see space contract as the mass is removed and on the grid the mark would be closer to the sun and everything else.

Currently there is no way to grid the fabric of space because we can't see it, hold it or measure it.

Answer 8

it is impossible. there is often some nutter obtainable which will handle your artwork as certainty. regardless of in case you vehemently state back and back back that it incredibly is a artwork of fiction, there'll be some cult formed that believes that became basically a attempt to weed out the phonies because of the fact the "actual believers" comprehend its actual.