Ultimate space simulation software

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by evildrganymede
27 Jan 2018 21:38
Forum: Troubleshooting and Solutions
Topic: Is this a bug? *Six* incandescent (> 700°C) moons in a planemo system!
Replies: 9
Views: 1593

Is this a bug? *Six* incandescent (> 700°C) moons in a planemo system!

Well there's definitely a serious bug going on here! I just fired up Space Engine again tonight, I'm in the exact same system as before... but while physically the objects are the same as they were before, all of the temperatures are completely different (and more reasonable)! The system is no longe...
by evildrganymede
27 Jan 2018 13:56
Forum: Troubleshooting and Solutions
Topic: Is this a bug? *Six* incandescent (> 700°C) moons in a planemo system!
Replies: 9
Views: 1593

Is this a bug? *Six* incandescent (> 700°C) moons in a planemo system!

SpaceEngineer wrote:
It's tidal heating. In 0.980 it sometimes goes crazy.

Is it going crazy because of a bug? I've got formulae here (in my Solar System Dynamics book) to calculate tidal heating based on eccentricity, mass of bodies, orbital distance etc if they need to be checked...
by evildrganymede
27 Jan 2018 00:04
Forum: Troubleshooting and Solutions
Topic: Is this a bug? *Six* incandescent (> 700°C) moons in a planemo system!
Replies: 9
Views: 1593

Is this a bug? *Six* incandescent (> 700°C) moons in a planemo system!

This is system is nuts - six out of the seven satellites around this planemo are incandescent (> 700°C). How does this even happen? The main light source for the system keeps switching around as the satellites move relative to eachother! Ironically the hottest body is actually pitch black and doesn'...
by evildrganymede
26 Jan 2018 09:54
Forum: General Discussions
Topic: Unexpected (emergent?) discoveries in SE?
Replies: 12
Views: 2684

Unexpected (emergent?) discoveries in SE?

Nobody else has found anything like this?
by evildrganymede
25 Jan 2018 00:21
Forum: General Discussions
Topic: Unexpected (emergent?) discoveries in SE?
Replies: 12
Views: 2684

Unexpected (emergent?) discoveries in SE?

I'm just wondering what sort of things people have found in SE that they didn't expect (or possibly that the dev didn't expect either), that emerged out of the procedural generation and the way the program works. For example, I was surprised by the incandescent moons around Planemos. These are tidal...
by evildrganymede
24 Jan 2018 22:35
Forum: Troubleshooting and Solutions
Topic: Where are the procedural Subdwarfs and Bright Giants? (size VI and II) [0.9.8.0]
Replies: 4
Views: 1673

Where are the procedural Subdwarfs and Bright Giants? (size VI and II) [0.9.8.0]

I've never found any Subdwarfs (VI) or Bright Giants (II) in SE 0.9.8.0 - subdwarfs should be around somewhere at least, since they're in the Star Browser list of stars that can be searched for, and I can't think of a reason for Bright Giants not to exist here.  Perhaps there are some real named one...
by evildrganymede
24 Jan 2018 21:32
Forum: Development
Topic: Do you play ships?
Replies: 56
Views: 15862

Do you play ships?

What does flying around as a ship provide that flying around as a disembodied POV doesn't offer? (I'm honestly curious, I've never 'played' SE with a ship before).
by evildrganymede
24 Jan 2018 13:51
Forum: Troubleshooting and Solutions
Topic: White dwarf binaries - why so many M/L V companions?
Replies: 9
Views: 1171

White dwarf binaries - why so many M/L V companions?

ideally I think the binary system should start off (in the computation process) as two main sequence stars, in which the more massive star evolves off the main sequence first into a remnant (WD, NS or BH). So the companion should be created based on in the initial mass of the remnant's progenitor st...
by evildrganymede
23 Jan 2018 00:04
Forum: Space Journeys
Topic: Strange sightings
Replies: 193
Views: 40602

Strange sightings

I found a real doozy of a system here - a warm Terra world orbiting a planemo! https://i.imgur.com/f5AkoC6.png It's somewhat toasty at 56°C, but this is a Terra (with oceans!) that is being warmed by an incandescent moon (ironically, the dark body on the left, but it has a temperatur...
by evildrganymede
22 Jan 2018 22:47
Forum: Troubleshooting and Solutions
Topic: White dwarf binaries - why so many M/L V companions?
Replies: 9
Views: 1171

White dwarf binaries - why so many M/L V companions?

Black Hole Binaries are similarly affected - they seem to be rarer but the five black hole primaries that showed up on my search within 1000 ly all had L V companions. So with black holes it looks like the primary:companion mass ratio is more like 100:1! 
by evildrganymede
22 Jan 2018 22:04
Forum: Troubleshooting and Solutions
Topic: White dwarf binaries - why so many M/L V companions?
Replies: 9
Views: 1171

White dwarf binaries - why so many M/L V companions?

Neutron Star binaries are similarly odd - a lot of their companions are M or L dwarfs (so their mass ratios are even smaller), but they also seem to have a higher chance of having a WD companion or even another neutron star as a companion. I've not run into any NS with any other kind of companion so...
by evildrganymede
22 Jan 2018 20:30
Forum: Troubleshooting and Solutions
Topic: White dwarf binaries - why so many M/L V companions?
Replies: 9
Views: 1171

White dwarf binaries - why so many M/L V companions?

It's curious because Elite Dangerous's Stellar Forge does the same thing. I'm wondering if they share a common flaw or if the devs on both are using some scientific literature that claims that WDs should have smaller companions that I'm unaware of... 
by evildrganymede
22 Jan 2018 13:29
Forum: Space Journeys
Topic: Strange sightings
Replies: 193
Views: 40602

Strange sightings

Is this the video you meant to post? https://www.youtube.com/watch?v=PAzUBBlcM0g

Looks weird... you have a moon going one way over the planet, and then the same one going the other way? retrograde motion maybe (if it's another moon around a GG)? 
by evildrganymede
22 Jan 2018 11:48
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 666
Views: 88522

Science and Astronomy News

https://cosmosmagazine.com/space/how-big-can-a-non-rotating-neutron-star-grow-before-it-collapses-and-becomes-a-black-hole The maximum mass of a non-rotating neutron star seems to be about 2.16 solar masses? (rotating ones can be about 20% higher, if I read that right). This may be a good limiter fo...