A black hole at home.
- Thread starter nicomak
- Start date
Would be interesting to see where you end up when you jump towards such a system. I would think the Black Hole would be the highest body of mass so you would jump close to that one. 
That's interesting.
I assume stars are listed in mass order, with Glesting A being our jump off point from Hyperspace. In which case I'm surprised to see that a Type B main sequence star has a larger mass than a black hole?
Astrophysics isn't my strong suit, what am I missing?
I assume stars are listed in mass order, with Glesting A being our jump off point from Hyperspace. In which case I'm surprised to see that a Type B main sequence star has a larger mass than a black hole?
Astrophysics isn't my strong suit, what am I missing?
Could be they're listed by order of discovery. Which is usual in astronomy.
Wouldn't a black hole in a system end up simply devouring the system, and thus not really be a part of the system as such.
Not necessarily, if it is all cosy and distant enough. It is probably an old star, one of the orignal set, that went supernova a while ago and became a black hole. It wouldn't change much to the equilibrium that was there before it went supernova so general orbital mechanics would still allow those bodies to revolve around eachother. Mind you: Black holes only behave badly when you come too close
It doesn't suddenly become the systems' vacuumcleaner.i guess the black hole has a constant mass until something falls into it, but in the meantime the gravity works in the same way, except the distrubution of mass changed i suppose(from its original form as star).
Gravity effect decrease rapidely with the distance. At very close range, even 300 000 km/s is not enough but further away.... it gets quiclky doable to get an orbiting object which never falls into it with a much smaller speed than light's.
At least that's how i understand it, i'm no expert
Gravity effect decrease rapidely with the distance. At very close range, even 300 000 km/s is not enough but further away.... it gets quiclky doable to get an orbiting object which never falls into it with a much smaller speed than light's.
At least that's how i understand it, i'm no expert
Presumably the hyperdrive would drop us out at a safe distance to such an object as it does for a normal star. The safe distance will just be a lot further out.
Not necessarily. In fact, if the sun were instantly replaced with a black hole of the same mass, all the planets would continue their orbits indisturbed. A star collapsing into a black hole would basically retain its mass and thus the gravitation throughout the system would still be the same, the interesting stuff happens near the black hole in the volume that would previously have been inside the star...
Not necessarily. In fact, if the sun were instantly replaced with a black hole of the same mass, all the planets would continue their orbits indisturbed. A star collapsing into a black hole would basically retain its mass and thus the gravitation throughout the system would still be the same, the interesting stuff happens near the black hole in the volume that would previously have been inside the star...
Correct.
Black holes are created when a massive star (there is a defined threshold that causes this) collapses at the end of its life. With the hydrogen and helium fuel depleted the huge amounts of leftover materials start to collapse toward the core which now no longer generates enough counter balacing pressure through nuclear fusion to prevent the star from crushing itself. This will then cause a couple of things to happen 1. the new elements (matter) compress to the point of going critical and exploding (Supernova) 2. if the star lost a lot of matter in the Supernova event it will leave a spinning super dense core or a Neutron Star. 3. if the star still had too much matter left over gravity is overcome and the core collappses into a singularity and form a black hole.
Point is the universe is a very finite machine and one of its rules is that matter is neither created nor destroyed. So providing you survived the initial Supernova event (doubt it...) you'd be left with a black hole which for the most part behaves just like the star that created it in regards to maintaining gravitational pull in the system and so on.
Was surprised to find this myself today. I'm only 22 ly from it. I wanna just dive in!
"A black hole formed by the collapse of an individual star must have mass exceeding the Tolman–Oppenheimer–Volkoff limit." That is 1.5 to 3.0 solar masses. Type B stars are 2.1–16 solar masses, so it's perfectly valid.
"A black hole formed by the collapse of an individual star must have mass exceeding the Tolman–Oppenheimer–Volkoff limit." That is 1.5 to 3.0 solar masses. Type B stars are 2.1–16 solar masses, so it's perfectly valid.
Was surprised to find this myself today. I'm only 22 ly from it. I wanna just dive in!
"A black hole formed by the collapse of an individual star must have mass exceeding the Tolman–Oppenheimer–Volkoff limit." That is 1.5 to 3.0 solar masses. Type B stars are 2.1–16 solar masses, so it's perfectly valid.
I hope it stays there though, i had seen a few interesting stars, including a Wolf-Rayet type, within human space, but it's not there anymore, the system is still there but the stars are different and not quite as unusual.
I guess that's the hand of the great galaxy-map maker in action there
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