Ultimate space simulation software

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by JackDole
20 Sep 2020 03:19
Forum: Mods and Addons
Topic: JackDole's Universe 0.990
Replies: 79
Views: 20547

JackDole's Universe 0.990

That's pretty much true. The two moons orbit the planet at the same speed as the planet orbits the sun. (88,065 days.) As a result, one planet is always between the sun and the planet, but the other is always on the side of the planet facing away from the sun. That is why he has an eternal solar ecl...
by JackDole
19 Sep 2020 07:00
Forum: Troubleshooting and Solutions
Topic: Troubleshooting and bug reports - SpaceEngine 0.990
Replies: 700
Views: 79614

Troubleshooting and bug reports - SpaceEngine 0.990

AnttiHuovilainen wrote:
Qr Bbpost Is this a known issue?

It's a known problem.
But I don't know when it will be fixed.
by JackDole
16 Sep 2020 23:08
Forum: Space Journeys
Topic: Image Dump
Replies: 2763
Views: 464226

Image Dump

scr00074.jpg
by JackDole
15 Sep 2020 06:19
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

With my calculator I have slightly different values:
1.03599996 m/s = 0.10560652 g
My calculator may be a little inaccurate.

I use Speedcrunch.
by JackDole
15 Sep 2020 01:49
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

SpaceEngine gives 0.14 parsecs for a black hole of 1.5 billion solar masses. If I do the math myself, I get 0.14360755 parsecs. I changed the function a little and I entered now this function in my calculator: gBH(r;M) = (G*M*mSol)/r^2*1/(sqrt(1-(G*M*mSol/(c^2*r)))) (mSol = 1.9891e30 kilograms solar...
by JackDole
14 Sep 2020 23:13
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

Then it seems right. Right on the horizon, about 0.14 parsecs, I have 10.67590883 g. Much the same as in your illustration.
by JackDole
14 Sep 2020 22:34
Forum: Space Journeys
Topic: Image Dump
Replies: 2763
Views: 464226

Image Dump

That is very glitchy! :D
by JackDole
14 Sep 2020 22:26
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

Watsisname, okay, I think I got it. (Possibly!)
For a black hole of 1.5 trillion solar masses and a distance of 0.49 parsecs, I have a gravitation of 0.87118334.
Can you possibly check that?
by JackDole
14 Sep 2020 21:20
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

Yes, but what is the other r, like the r2?

Is that the distance from the center of the black hole in which I want to calculate the g-forces?

And if so, which units do I use? Parsec, light years, kilometers?

(Sorry, but I'm not a mathematician!)
by JackDole
14 Sep 2020 21:08
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

I know that G is the gravitational constant and I assume that M is the mass of the black hole. But what do you mean by rs. The upper r in the square root expression? It's so small I can't read it. Then what would the other three r be?
by JackDole
14 Sep 2020 19:42
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

To be honest, I don't know how that is possible either. But fact is, the bigger a black hole, the lower the gravity on the 'surface'.
For example, there was the theory that the whole universe is a black hole! https://en.wikipedia.org/wiki/Black_hole_cosmology
by JackDole
14 Sep 2020 19:36
Forum: Space Journeys
Topic: Image Dump
Replies: 2763
Views: 464226

Image Dump

Mr. Abner wrote:
Qr Bbpost Now it begs the question, what kind of star do you use to light it up? Hmmmmm?

A 'G2 V' Star.
by JackDole
14 Sep 2020 18:38
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1713
Views: 286024

Science and Astronomy Questions

How do I calculate the gravitation at the Schwarzschild radius of a black hole? I tried to create a 'Birch Planet'. I have read that the black hole must have about 1.5 trillion solar masses so that the gravitation at the Schwarzschild radius is the same as on earth. https://space-engine.fandom.com/w...
by JackDole
14 Sep 2020 16:43
Forum: Space Journeys
Topic: Image Dump
Replies: 2763
Views: 464226

Image Dump

I assume you mean the giant planet around the huge, irresponsibly huge black hole?
No. Because if SE 0.980 such a planet is not possible. It would only appear as a gas planet. If it wasn't totally glitchy anyway.
by JackDole
14 Sep 2020 12:28
Forum: Space Journeys
Topic: Image Dump
Replies: 2763
Views: 464226

Image Dump

A-L-E-X wrote:
Qr Bbpost and is that planet already in .990?

No. And it won't. If I don't do an add-on of it. Which I probably won't do because the whole thing is pretty glitchy.