ELW bucket list

[MattG]

That WD is still one of the primary stars in the system. Is there any record of an earthlike orbiting a WD that isn't one of the primary stars?

Ah right, I took "the main" to mean the first main system star.

So, ELMs of a non-main white dwarf. There's a small handful and they're all around h-mass main black holes, e.g.
Dryuae Phyloea AA-A h203
Dryau Scraa AA-A h533
Phleedgae AA-A h345
Dryae Flyi AA-A h54
Eord Blooe AA-A h240


Currently more common than ELWs oribiting only a WD, but I expect a chunk of that is selection bias as h-mass is farmed while no-one cares about WD systems

 

[Pirin]

Thanks all for the detailed input In that system the ELW is orbiting the secondary star.
The reason i asked is, i am exploring for years and yet this is the first time i see an ELW in a WD system. Guess i was a bit unlucky on that front

 

[Pirin]

On a scale of 1 to 10 with 10 being the rarest it's about a 6 or 7 at the max.

Personally speaking, I'd put it at a 5.



And I'm not trying to put down your discovery either. I'd wager something like a 5 is still close to like a 4% chance. Which is still unbelievably rare compared to most things.

But when you compare it to other rare finds it's not quite the stand out.


NOW that being said, if you found an earthlike orbiting an white dwarf that was NOT the primary star, I'd put that as a 8 or 9 on the rarity scale.


To put it into perspective, I've found an Earthlike inside of a undiscovered planetary nebula. Consider how rare planetary nebula are vs everything else and think about those odds.

now consider that I have personally never found an earthlike orbiting a WD or Neutron star that isn't the primary. I'm sure someone has/that it exists but I've never heard of it myself.

As i mentioned in the previous post, i asked because i have found some pretty rare things too but not such ELW. So i thought they might be a bit more rare that they actually are, as it seems.
Your nebula example is a good one. One of my best ever discoveries is an ELM inside a nebula So basically i had even that in my list, but not ELW in a WD system.

 

[Crusina Luachra]

As i mentioned in the previous post, i asked because i have found some pretty rare things too but not such ELW. So i thought they might be a bit more rare that they actually are, as it seems.
Your nebula example is a good one. One of my best ever discoveries is an ELM inside a nebula So basically i had even that in my list, but not ELW in a WD system.

Yeah I know it seems like I was trying to downplay your post but I'm really not. Its still incredibly rare and a fantastic find.

Certainly I've found far more earth likes around neutron stars then WD for some reason.

 

[Crusina Luachra]

Thanks all for the detailed input In that system the ELW is orbiting the secondary star.
The reason i asked is, i am exploring for years and yet this is the first time i see an ELW in a WD system. Guess i was a bit unlucky on that front

I'll say it again, your find is still one of the rarest things in the game. I wouldn't call that unlucky.

 

[marx]

Here comes an update: I forgot to do the Odyssey landable moons for this. Turns out they are all very rare: 0.5% for all of them, and there are some variations among them that are as rare as it gets. Specifically, there are only three that have a thin oxygen atmosphere: all the rest are carbon dioxide(-rich) and sulphur dioxide(-rich). (Inside of inhabited systems, it doesn't get much better: there's another thin oxygen atmospheric moon, and two with thin water atmospheres.)
As for surface volcanism, only three of them have any.

A special mention goes to Aunaihn AA-A h268 1 c a, discovered by CMDR Yakob Rice-Moog, for still being one of a kind: thin atmospheric landable nested moon of an ELM, with surface volcanism too.

 

[Rojo Habe]

So this one's quite good then?

 

[Kvothe The Bloodless]

So I just came across an ELW with a thin atmospheric landable moon that is also terraformable. Where would that go as far as rarity?

Edit - forgot to provide the link... https://www.edsm.net/en/system/bodi...idB/417043406/nameB/Scaulo+QK-C+d14-568+A+6+a

 

[Cmdr Coddiwompler]

Here's one. According to EDJP, it's very rare:

Hypio Flyao AW-N e6-20

8 f

No

1

yes

Y (Brown dwarf) Star

1

0

B (Blue-White) Star

No

No

No

17.066

Very Rare

System has a B main star and the earthlike is a moon of a planetary Y star. The adjacent moon (8 g) is also a terraformable.

 

[marx]

So I just came across an ELW with a thin atmospheric landable moon that is also terraformable. Where would that go as far as rarity?

It's in the Very Rare category, and I accidentally listed it twice - fixed now. The terraforming candidacy doesn't really make it rarer, though: most of the thin carbon dioxide moons of ELWs are TCs. That's only rare on thin sulphur dioxide moons of ELWs, although it's not unheard of there either.
In any case, all of these are very rare, so congrats on your find!

 

[Kvothe The Bloodless]

How does orbital eccentricity affect ELW rarity?

 

[marx]

How does orbital eccentricity affect ELW rarity?

It's quite predictable: the vast majority of ELWs have near-circular orbits, then the higher you go, the more rare they are.

 

[Welltoday]

Thought i would share my personal favorite ELW that I've discovered so far (After putting it off for around a year).
I was going to go back and get my name on some other bodies in the system, but i decided to release the system name other Cmdrs can visit.

Also could someone let me know how rare it is.

 

[Ozzie_J_Isaacs]

Discovered a few hours ago, three Earth-like at a stroke, and in one picture. left and right at the edge each in the upper area
In the Blaa Dryou EF-Q d5-5

and the three Earth-like in detail

Two water worlds and a terraformable High metal content world were also in the system + a small bonus on the Moon 7a

 

[Alkibiades]

Heillige Sch...

Just figured I never posted my rarest finds in this thread:

Wepae aa-a h22 - Delicate Dance

ELW orbiting two black holes in their barycenter

A couple of other neat finds in the galaxy:

Wepae aa-a h83 3f



Ringed elw as a moon which parent is a sun. Main star is a black hole.

Flyae Flyi Wu-v d3-3154 B1



There are also two water worlds in that system.


Phaa ain bm-c d4 1



ELW orbiting a neutron star as the only planet in that system.


I still have one system in the eafots sector in my list that has an elw where the main star is a non sequence star (but neither bh or ns) according to my notes but no screenshots and the find is so old its not on edsm.

 

[BradHann]

Is an ELW orbiting the barycentre of a red dwarf/brown dwarf binary particularly noteworthy? I feel like binary stars' habitable zone tends to be greater than the sum of its parts, so probably more likely than either on its own. But orbiting a binary is itself a rarity, so...

https://imgur.com/a/YU1705g

Source: https://imgur.com/a/YU1705g

 

[DjVortex]

ELW orbiting two black holes in their barycenter

I'm not sure that's even physically possible. (Not the orbiting, but it being earth-like, in those conditions. Where's that 282 K surface temperature even coming from?)

 

[marx]

Is an ELW orbiting the barycentre of a red dwarf/brown dwarf binary particularly noteworthy? I feel like binary stars' habitable zone tends to be greater than the sum of its parts, so probably more likely than either on its own. But orbiting a binary is itself a rarity, so...

Not particularly noteworthy, no.
And yes, stars do "extend" the habitable zones in the system. I expect that Earth-likes co-orbiting more than one star are more rare than usual simply because of planet formation. Also, for this list, I only looked at orbits in general, not for specific combinations. (Like the M & L you asked about here.)

I'm not sure that's even physically possible. (Not the orbiting, but it being earth-like, in those conditions. Where's that 282 K surface temperature even coming from?)

From the other stars in the system.

 

[DjVortex]

From the other stars in the system.

Would be nice to see the orbits of the system. To have a consistent surface temperature (capable of sustaining life) the distance to a star would need to be within a rather tight range, else the temperature fluctuations would be way too large.

 

[Ozzie_J_Isaacs]

I'm not sure that's even physically possible. (Not the orbiting, but it being earth-like, in those conditions. Where's that 282 K surface temperature even coming from?)

I think a large part of the energy comes from the Neutron Star, they pump a lot of energy into the system. The Stellar Forge does not really distinguish the energy types.