The "ELW moon" holy grail

Heavy Johnson

Heavy Johnson
As an aside from my thread about gas giants, my current "holy grail" exploration find is an ELW as a moon of a gas giant. I've found several water worlds in orbit around gas giants.

Got any tips or exciting finds?

As far as I can tell, the best odds are for A-class and B-class stars. These stars have habitation zones large enough to encompass the 1000+ Ls range that most gas giants are found at. F-type stars seem to be too weak for this effect, and forget O-types, because they're almost all too young or too hot to form real planetary systems with habitable bodies.
 

Straha Yeagar

S
Not exactly what you are looking for, but pretty strange none the less...ELW orbiting a brown dwarf orbiting a black hole primary.

QzVYm7a.png
 
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marx

marx
Did somebody say "Earth-like"?

If you're looking for an Earth-like moon around a gas giant specifically, and not looking for ELMs orbiting other stuff, then you've set quite a goal for yourself. I only know of five such Earth-likes. Not easy to see any pattern with so few samples.
In any case, multiple-star systems might also be a good bet for you, what with their extended habitable zones. Unless I'm mistaken, gas giants also produce a bit of "heating" for their moons, so with these combined, class F stars should also be good.

Well, good luck with the search, and let us know if you find one!
 
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marx

marx
Wow, talk about luck: I found an ELM around a gas giant just now, while I was looking for Earth-likes inside a nebula. In contrast to what I wrote above, this was in a solitary F star system. Close orbit (2.1 ls) to the giant too. I'll update this post with a screenshot when I sell the data.
 

Heavy Johnson

Heavy Johnson
marx said:
Wow, talk about luck: I found an ELM around a gas giant just now, while I was looking for Earth-likes inside a nebula. In contrast to what I wrote above, this was in a solitary F star system. Close orbit (2.1 ls) to the giant too. I'll update this post with a screenshot when I sell the data.
Click to expand...

Interesting!
 

Traesha

Traesha
Assuming you want to find the Earth-Like Moon yourself and not travel to one that has been found, I have found 2 of them.

The first one was found orbiting a class F star... or, yeah it does count, right: A Class Y Dwarf star that orbits a class F star. The class Y dwarf had several moons including an earth-like moon
And then the 2nd one, yeah that was a class B star with a earth-like moon orbiting a gas giant.

So, you have a chance with B, A and F stars. I don't think G stars will get earth-like moons until someone finds one off course.
If you want the location of the earth-like moons, I can provide them as I sold the data at colonia. When I get back to Sol.. I have a llllooooong list of earth-likes waiting to be submitted to the List of known earth-likes
 

mtt9999 [Parabolus]

mtt9999 [Parabolus]
You are in luck! I actually recently found my first ELM - this Earth Like was actually orbiting a High-Metal Content Lava World!!! Anyone have one of those yet? Primary star was A-Class. You can see the video of this discovery here at 11:50 - including the pretty amazing system map [7-lava worlds]

[video=youtube_share;relB5XW8HUA]https://youtu.be/relB5XW8HUA?t=11m49s[/video]

-Cmdr Parabolus
 
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MattG

MattG
I think one of the 5 (or 6 now, I guess) that marx was talking about is one of mine:
PvjMe0rS.png

Anecdotally, I'd probably avoid B-class. The odds of any ELW in B-class systems is low as it is, the ones that are there tend to be moons of lava worlds rather than gas giants, and - from my experience anyway - even water worlds around gas giants seem rare in them. I'd stick to A, and multi-star systems. Good luck!
 

Kenneth McGrew

Kenneth McGrew
Neutron star with a single planet which was an ELW is my most "bizarre" most of the others have just been an ELW in a random string of planets with the odd waterworld in binary or next too it,

i dont filter stars and have found them in Neutron, A,B,K,F,G & M although F is most common.
 
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Ian Doncaster

Ian Doncaster
MattG said:
Anecdotally, I'd probably avoid B-class. The odds of any ELW in B-class systems is low as it is, the ones that are there tend to be moons of lava worlds rather than gas giants, and - from my experience anyway - even water worlds around gas giants seem rare in them. I'd stick to A, and multi-star systems. Good luck!
Click to expand...
Counter-anecdotally ;) the only procedural ELW moon I've personally seen is in Eol Prou IW-W e1-2649, which is a B-class star. It orbits a large WW rather than a gas giant, though. (But agreed in general - terraformables of all sorts are pretty rare in B-class, which makes an ELW extremely unlikely)

Part of the rarity presumably comes from ELWs generally being quite heavy in their own right - I've seen quite a few which are co-binary with gas giants, but the giant isn't heavy enough or large enough for them to count as a moon.
 

Wedgetail

W
This one was my only such find to date (and again, not orbiting a gas giant unfortunately). A single M class star, and the ELW is orbiting a non-TF water world, so I don't know what weird physics is going on here :p

5lJyuel.jpg
 
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marx

marx
Data's sold now, so you can find it at Dryaea Flee GC-D d12-3089. It's in a system 3,000 ly from Jaques, inside a proc. gen. nebula.

Or direct links to the screenies (although EGO's zoom-out looks spiffy with this shot):


Turns out the ELM is a galactic record holder for the shortest orbital period too, because the game tracks it relative to the body it orbits, and it zooms around the giant in 1.26 days. (On EDDN, there are three ELWs with a slightly shorter orbital period, but they are non-natural - one is handcrafted, two are terraformed.)

The system's main (and only) star is F3 VI, so it's not like it's super-hot. Guess the ELM is heated up like this only because of its proximity to the giant - and the other binary gas giant might also help. For comparison, three of the other gas giant ELMs orbit class F main stars, one orbits a class K star around a non-procedural class G main star, and one a class A star. So yeah, no bees, I mean B-s, here.... yet?

Also, I wonder if location might not play an important part with B stars as well. I've stuck to looking at low-luminosity B main stars in/near said nebula, and saw a good amount of planets (HMCP or WW) inside the habitable zone. Of course, I simply might have been very lucky with them.


@ Wedgetail: around a solitary class M star system? Nice, that would be even more rare too. The parent planets of ELMs are often not terraforming candidates though, because they are too massive - and often hot - to count as such. Although with how generous the game can often be with TCs, this does still feel weird to me.
 
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jimbeau1571

J
Not an ELW this one, but odd.
I found a Gas giant in a trinary with another Gas giant and a HMC, but the first giant had 2 moons, both of which were WW's, the second being ringed.
I'll post a screenshot later if anyone is interested.
 

marx

marx
MattG said:
When we get to land on ELWs, that's going to be one amazing view of the gas giant in the sky!
Click to expand...
Yeah, it's on my "Earth-likes to land on when we finally can" list. Especially since the giant's rings are inclined compared to the planet's orbit, so you'd get a nice view of those too.
I wonder how this, and also being inside a nebula, would have shaped a species' cosmology if they were native to the planet. Even more fun with Earth-likes that are moons: imagine them going from "our planet is the center of the universe" to "well, our planet orbits that big planet, which also orbits the sun" - or in this case, "our planet orbits that gas giant that orbits a barycentre that orbits the sun".
 
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Cmdr Frawd Digger

Cmdr Frawd Digger
ibanix said:
As an aside from my thread about gas giants, my current "holy grail" exploration find is an ELW as a moon of a gas giant. I've found several water worlds in orbit around gas giants.

Got any tips or exciting finds?

As far as I can tell, the best odds are for A-class and B-class stars. These stars have habitation zones large enough to encompass the 1000+ Ls range that most gas giants are found at. F-type stars seem to be too weak for this effect, and forget O-types, because they're almost all too young or too hot to form real planetary systems with habitable bodies.
Click to expand...

it is my holy grail too...

Frawd
 

Starlanced

Starlanced
I travelled from one end of the galaxy, literally beagle point to Crab Nebula and I found one, and consider myself lucky. It wasn't around a gas giant though. Also found one ringed ELW, but I think the moons are rarer.
 

MatYNWA

MatYNWA
I've found few ELW moons, but the last one is really special, at least i think its. It is a moon of a gas giant, that is in binary with ammonia world, so basically ammonia world, and ELW just 200ls from each other.

Don't know how rare this is, but i really like this one a lot.

Have a picture, but didnt sold my data yet. so....
 
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