Hypercosmic

"You're not going to space today" https://i.imgur.com/AoLWTHI.gifv

I see.

When your calculator shows that your planet's equilibrium temperature is over 2000 K, you know your planet's roasted. Also, what would be the surface pressure of Tau Ceti g? Is it going to be more than Venus?

What is this planet in your vision like? The surface is probably basalt, olivine, lava and all, but what about it's atmosphere?

Do keep in mind that some systems, such as the infamous Gliese 667 C, actually contain fewer planets than listed. Originally listed as 5 (or was it 7?), simulations show that the arrangement is unstable. In the end they only confirmed two (b, c). "and 10 potentially habitable worlds", ...all of which are either too hot (Tau Ceti e and more), or too big (likely Gliese 832 c), or orbiting a red dwarf, which means that the local stellar wind will blow the living atmosphere out of them and likely immense tidal force will turn them into giant versions of Io (all of them except Tau Ceti e). Not that it's necessarily a bad thing since various kinds of uninhabitable worlds makes for more interesting targets for science and colonization than a bunch of plain ol' habitable worlds filled with unknown alien natives that will (indirectly) fill your house with angry bioconservationists. Within roughly 40 light years there are many more interesting systems and more, like Sirius system, Epsilon Eridani system, or TRAPPIST-1 system, for example. Just beyond that you also have 55 Cancri system.

You can create your own levels and campaigns using the new Level Editor now, so you can make your own transport/rescue missions. Since you can also create new celestial bodies, you can even easily make a challenging mission with just trying to move around places. If you want a bit more action but not fighting, a great idea by a member in CDE forums is being a civilian ship trying to escape/rescue a stranded ship while the enemy is attacking. The goal is to survive, not to win. I'm also using this concept in a level in my own new campaign project.

I like to make planets in CDE, and yes it's not bad at all that you don't fight.

I guess I can expect that. What is this planet like?

Tau Ceti h, a weird-looking planet indeed. Is that orange sand that fills the gap between mountain ranges?

Ohh, there is an article about how some researchers ran a computation that shows that Kepler-186f and Kepler-62f's axial tilts are likely to be quite stable. sobs at the edge because they're both probably too far away

Interesting... So, what do you expect Proxima b to have? Having lots of volcanoes, basalt plains, cracks, fissures and ravines, and an ash-filled thin atmosphere composed of CO2 plus other common volcanic gases, maybe? Because a plain-looking planet won't do.

Don't know either By the way, what's the tidal heating for Io if it's orbiting alone without the other moons?

Mercury is actually pretty far from the Sun. (Note: Mercury's semi-major axis is roughly 0.4 AU (e=0.2), while Proxima's is roughly 0.05 AU. Proxima is also larger than Mercury, which means more tidal effects) Also, if my understandings are correct, you don't really need a third body to pull on Proxima Centauri b for it to experience tidal heating. The difference in tidal forces acting on it at periapsis and apoapsis, combined with the planet's rotation, might be enough. What's Proxima b's eccentricity in your mod, by the way? EDIT: That moment when you realized that The Minmus Derp is always there, just that you can't see it at first

I heard that to get stuck in 3:2 spin-orbit resonance, your planet needs to be in a rather elliptical orbit, and that would probably cause quite a lot of tidal heating and thus geological activities. Volcanoes and dust-filled atmosphere would make some cool scenery, and seismic activity for good science without having to carry a bomb with you. Still expect a few fresh new craters though.

There we go, Proxima b looks more awesome now. Though, I expect a few large craters, but I guess those are eroded by the eternal storm caused by the temperature difference between day side and night side. Oh, speaking about night side, I wonder if any atmosphere on this planet would freeze there...

Oww, lol. Too much? Too few? By the way, I think you could add some large craters surrounded by ejecta rays plus active and dormant volcanoes on Proxima b, since it is likely that the planet experiences some tidal heating and other things, and the relative speed in the system is rather higher than in Solar System. With volcanoes, a thin (maybe visual-only) atmosphere could also be used. I wonder what the real Proxima b's like...

Tbh I can't imagine Proxima b having any significant atmosphere and surface liquid water. The planet gets constantly blasted by CMEs several times a month, and I don't think a habitable zone terrestrial planet could produce a magnetic field strong enough (thousands of times as strong as Earth according to [1]) to deflect its parent red dwarf's CMEs. I think having fewer 'Earth-like' planets is better. It makes a discovery of surface liquid water on a rocky exoplanet more rewarding. I am diving into the fields I'm not good at, so if you find something I stated wrongly, please notify me. Trying to cite my sources unprofessionally: [1] iflscience article [2] paper (link found in [1]) [3] space.com article on Proxima b's atmosphere

Proxima Centauri is a flare star and Proxima b is orbiting very close in, so I guess it's very likely. I am not sure if the planet's possible heightened volcanic activities (due to tidal effects) can replenish the atmosphere fast enough, but I don't think they can. Either way, it seems to me that any surface liquid water on this planet is going to have a bad day. I just read a news about Proxima flaring a flare so big it became visible with naked eyes from Earth.

Wow, that's quite something. Very impressive, gotta love to be able to explore the pressure ice layer below. Speaking of ice, at which depth do you expect the water to 'freeze' from pressure? Would that affect the planet's expected radius?

Check again. The seven planets system model was found to be extremely unstable in simulations, and subsequent real world observations only confirmed two planets: Cb and Cc.

@AndrewDrawsPrettyPictures Pretty much. Now that I saw it, Proxima b having atmosphere thick enough to have water, hmm...

Can't see it having a planet teeming with life at the same level as Earth either, but I'm more interested in how compact it is and each planet's properties. We know a lot about them. I think that in this system apart from b, c, all planets but e are probably lifeless ocean/icy rocky planets, while e itself might be volcanic bigger Mars.

Gliese 667 system has three known stars, and only one of them (C) has known planets. In fact, only two were confirmed. There would be quite a lot of empty space there. Still, if Gliese 667Cc is added, it seems that tidal heating would increase the planet's geological activities by a lot, giving the planet a thin carbon dioxide atmosphere constantly stripped by the star's stellar wind and flares. If its orbital eccentricity is high, it might also have 3:2 spin:orbit resonance. Might be an interesting world to look into. Personally I would like to see TRAPPIST-1. I have a few (pessimistic) ideas of my own about how those planets might be like.

@ProtoJeb21 Once I read an article stating that Tau Ceti's Mg:Si ratio is ~70% higher than Sol's, and magnesium-rich rocks make less viscous magma. What do you think?

Awesome! By the way, do you have a list of all the new celestial bodies in this mod?