Ok! I just checked and my earthlike moon IS orbiting a candidate for terraforming. Cool. Hmm does it help that the next planet out has an ammonia moon?
ELW bucket list
- Thread starter marx
- Start date
I finally was able to sell the data so I have a few screenshots here that should be able to better determine its rarity, including the mass of the parent star
Elw orbiting directly around main binary stars, white dwarf and L dwarf.
Agnainks LQ-Y d4673 if anyone is interested in visiting.
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Huh, so... I found one of those.
Good luck getting to the place, bring an AFMU and make sure you jump like 47+ly to get out with a FSD boost.
Sqeass IH-L d8-0 ABC 3
Parent stars are G, M and K.
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Anyone who have some good info/stats on ringed elw:s? Which systems etc that most likely will have them. Having found three myself (great basis, I know 
) I found that they all had something in common. They all had a F main star, were on the lower part of the galactic plane (-1760, -2167 and -2380). Interesting also is that they all had a binary ringed gas giants. Guess that the elw:s rings might have come from the gas giants.
) I found that they all had something in common. They all had a F main star, were on the lower part of the galactic plane (-1760, -2167 and -2380). Interesting also is that they all had a binary ringed gas giants. Guess that the elw:s rings might have come from the gas giants.
Sure thing, here you go.
My guide to finding ELWs also mentions this, but I should add a link to that thread as well, now that I think about it.
A couple questions: 1) Is the rarity of ELWs in systems with main type AE/BE really that rare (<0.025%)? 3/551 ELWs that I've found and catalogued are in systems with AE/BE main stars (Lyaisoo AA-A H390, Phipae AA-A H327, Phipae VT-A E3618) which works out to be ~0.54%, about 20x 0.025%. I also see many other posters above who found ELWs in an AE/BE system! Do we think that maybe the 'rarity' is just due to the fact that there are relatively few AE/BE stars, and actually the number of AE/BE systems with ELWs is not as rare as it appears?
2) I know I've found a handful of systems containing ELWs where the main star is a BH, but only 1/551 of my ELWs is in a system where the ELW is in direct orbit of the BH (Lyaisoo AA-A H447, "Lyaisoo Black Earth" in GMP). Is that still fairly rare at this point? Is there data that differentiates between the main star and which star an ELW orbits?
3) Is there data that shows rarity of ELWs by atmosphere? Only 1/551 of my ELWs has a gas other than nitrogen as the primary gas: Flyae Dryoae OH-M C10-9 7 with 51.2 % Ar, 38.3 % N2, and 10.3 % O2 (there has been some debate on the forums as to whether this would be a 'breathable' atmosphere at 1.86 atm). I don't see metrics on this post regarding atmosphere which makes me wonder whether atmosphere just isn't a catalogued/searchable parameter in whatever database Marx is using.
And a couple favorites, though they are not in the ultra rare category : )
"ABCD ELW"
"Saint Earth" ELM of class II GG with very narrow ring "halo"
Ringed ELM of class Y brown dwarf
2) I know I've found a handful of systems containing ELWs where the main star is a BH, but only 1/551 of my ELWs is in a system where the ELW is in direct orbit of the BH (Lyaisoo AA-A H447, "Lyaisoo Black Earth" in GMP). Is that still fairly rare at this point? Is there data that differentiates between the main star and which star an ELW orbits?
3) Is there data that shows rarity of ELWs by atmosphere? Only 1/551 of my ELWs has a gas other than nitrogen as the primary gas: Flyae Dryoae OH-M C10-9 7 with 51.2 % Ar, 38.3 % N2, and 10.3 % O2 (there has been some debate on the forums as to whether this would be a 'breathable' atmosphere at 1.86 atm). I don't see metrics on this post regarding atmosphere which makes me wonder whether atmosphere just isn't a catalogued/searchable parameter in whatever database Marx is using.
And a couple favorites, though they are not in the ultra rare category : )
"ABCD ELW"
"Saint Earth" ELM of class II GG with very narrow ring "halo"
Ringed ELM of class Y brown dwarf
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For 1), selection bias is definitely a thing (i.e. setting map filter to AFGK), we can only measure based on what people actually scan. That said, in my data (which is nearly 3 weeks old and needs to be refreshed - but won't change the answer too much), there are 272828 ELWs where the system main star is determinable and of those 97 have a main star as Herbig Ae/Be. I work that out as ~0.036%. So, 0.036% of discovered ELWs orbit an AeBe. For a better answer we need to borrow an image from IGAU's discord server:
This is some analysis done to break down chances of finding an ELW based off main star and mass code (the yellow are possibly affected by suppression zone). The vast majority of Herbigs live in masscode e, and if you hunt just those you would find 1 ELW for every ~719 systems visited. Given that, and the scarcity of Herbigs anyway, if you were travelling from A to B with no filters and just following the plotter, you'd be in GFL territory if you actually found an ELW - but you can obviously skew the odds in your favour by just selecting Herbig systems.
For 2), there are 273084 ELWs whose direct parent is discernable, and of those there are 63 who have a Black Hole parent. That's ~0.023% of discovered ELWs. Conversely, of the 272828 ELWs with a determinable main star, there are 566 with a Black Hole main (which would include the 63 above). That's ~0.207% or, 1 in 9 ELWs with a Black Hole main will orbit the Black Hole directly.
Not done any work on 3, not sure how I'd go about scoring it - but as noted elsewhere, the Argon is present when there is Ice in the composition of the ELW.
I've been working on something for a while, so figured I'd score a couple of your other ELWs:
Aiphaisty YC-Z c14-4 scores an arbitrary 4.704, putting it in the 97.42 percentile and making it "Rare".
Lyaisoo AA-A h447 A 3 scores an arbitrary 11.396 putting it in the 99.42 percentile and making it "Very Rare".
Bleia Hype RK-F d11-5 scores an arbitrary 31.02, putting it in the 99.92% percentile and making it "Very Rare".
The scoring mechanism is largely based on the criteria in this thread, but might have some slight differences. The last one scored higher than the Black Hole because it's an ELM, it's parent is GG2, and it's ringed.
This is some analysis done to break down chances of finding an ELW based off main star and mass code (the yellow are possibly affected by suppression zone). The vast majority of Herbigs live in masscode e, and if you hunt just those you would find 1 ELW for every ~719 systems visited. Given that, and the scarcity of Herbigs anyway, if you were travelling from A to B with no filters and just following the plotter, you'd be in GFL territory if you actually found an ELW - but you can obviously skew the odds in your favour by just selecting Herbig systems.
For 2), there are 273084 ELWs whose direct parent is discernable, and of those there are 63 who have a Black Hole parent. That's ~0.023% of discovered ELWs. Conversely, of the 272828 ELWs with a determinable main star, there are 566 with a Black Hole main (which would include the 63 above). That's ~0.207% or, 1 in 9 ELWs with a Black Hole main will orbit the Black Hole directly.
Not done any work on 3, not sure how I'd go about scoring it - but as noted elsewhere, the Argon is present when there is Ice in the composition of the ELW.
I've been working on something for a while, so figured I'd score a couple of your other ELWs:
Aiphaisty YC-Z c14-4 scores an arbitrary 4.704, putting it in the 97.42 percentile and making it "Rare".
Lyaisoo AA-A h447 A 3 scores an arbitrary 11.396 putting it in the 99.42 percentile and making it "Very Rare".
Bleia Hype RK-F d11-5 scores an arbitrary 31.02, putting it in the 99.92% percentile and making it "Very Rare".
The scoring mechanism is largely based on the criteria in this thread, but might have some slight differences. The last one scored higher than the Black Hole because it's an ELM, it's parent is GG2, and it's ringed.
Ooh, finally some good questions! Let's see...
So, to everyone: Ae/Be main stars have been pushed up to the Very Rare category.
Also, let's not forget that this thread isn't an exact scoring method, but handy approximates instead. If you'd like much more exact numbers, the ELW list includes detailed breakdowns of how the scores were calculated.
It seems you've misread the OP: this is all about rarity of ELWs in specific conditions compared to the total of ELWs. Not ELWs per systems. This is more dynamic, yes, but also much easier to collate - and for the most part, the two methods cover each other quite well. I suppose that Herbig stars are the exception, simply because people rarely visit them, due to various reasons. Yes, this means that if some CMDR(s) went around farming ELWs in Herbig systems, they might be able to push it up a category... however, the data is from the end of 2019, so I went and checked the current situation regarding them. 98 such ELWs out of a 270,000 total (slightly more, but I just rounded down), which now is past that 0.025% threshold.
So, to everyone: Ae/Be main stars have been pushed up to the Very Rare category.
Yeah, ELWs directly orbiting BHs are much more rare (see @MattG's post above), but I didn't add direct orbits to the criteria because it would overcomplicate things, and in the majority of cases, it's the main star that determines things the most.
Also, let's not forget that this thread isn't an exact scoring method, but handy approximates instead. If you'd like much more exact numbers, the ELW list includes detailed breakdowns of how the scores were calculated.
The reason ELWs with argon in their atmospheres aren't included is because in the data we had at the time, which were the EDSM dumps and the EDAstro processed stuff, there were too many missing or incorrect entries when it came to atmospheres. This is the fault of the game journals, by the way, and how they changed over time. I'll take a look at the current ones later, but since the argon level is only seen as a numerical value in-game, and seems to have no visible effect on the ELW whatsoever, I decided to keep it out. (Same as keeping out stuff like "has a surface temperature of 320 K", and so on.)
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Thank you kindly MattG and marx for the detailed answers. I understand better now how the rarity categories were calculated in the OP--not "what percentage of Herbig AE/BE stars have ELWs" but "what percentage of community-reported ELWs are in systems with AE/BE stars." I had misinterpreted the OP. I see now that your numbers are not speculative but based on reported data. I also fully agree with the idea that Herbig AE/BE stars must be sought out and that they are quite rare to 'stumble' across due to habits with route plotting etc.
I'd like to take a moment to reflect on how those of us who specifically target and visit AE/BE stars have collectively done the work of reducing their rarity as per your latest message ;p
I have found several ELWs (usually ELMs) with Ar in the atmosphere and know they are not that rare, but I wonder what the rarity is for the ELW with the 51.4% Ar as the most abundant gas. Based only on my own data set of 551, the next highest Ar I've ever seen is 19%. I certainly understand that it's a 'numerical value in-game, and seems to have no effect on the ELW whatsoever' but, well, I'd like to think the life that has adapted to live in a majority Argon atmosphere must have some pretty interesting evolutionary traits to prevent pooling of Ar in the lungs, displacing oxygen from standing groundwater or caves, etc. I think it would be quite interesting to study such a biosphere. As a chemist I frequently work with Ar for very sensitive operations, and I'm imagining a whole industry of "open air" labs in an underground facility on that planet where an inert atmosphere would be essentially free (just put on your suit before going to work)...so long dry boxes and airfree manifolds!
Thanks again to the data management you both do, it really adds to the game for explorers to have a sense of the approximate rarity of what we find out there!
I'd like to take a moment to reflect on how those of us who specifically target and visit AE/BE stars have collectively done the work of reducing their rarity as per your latest message ;p
I have found several ELWs (usually ELMs) with Ar in the atmosphere and know they are not that rare, but I wonder what the rarity is for the ELW with the 51.4% Ar as the most abundant gas. Based only on my own data set of 551, the next highest Ar I've ever seen is 19%. I certainly understand that it's a 'numerical value in-game, and seems to have no effect on the ELW whatsoever' but, well, I'd like to think the life that has adapted to live in a majority Argon atmosphere must have some pretty interesting evolutionary traits to prevent pooling of Ar in the lungs, displacing oxygen from standing groundwater or caves, etc. I think it would be quite interesting to study such a biosphere. As a chemist I frequently work with Ar for very sensitive operations, and I'm imagining a whole industry of "open air" labs in an underground facility on that planet where an inert atmosphere would be essentially free (just put on your suit before going to work)...so long dry boxes and airfree manifolds!
Thanks again to the data management you both do, it really adds to the game for explorers to have a sense of the approximate rarity of what we find out there!
Okay, so the atmospheric data looks better than I thought, and I can get you some numbers. There are 10,425 ELWs with any amount of argon logged, and of those, there are 230 above 51.4%. The majority are below 3%, by the way.
Here's a quick histogram:
I wonder what that bump around 12% might be about, but it could simply be an effect of partial pressures.
The record is 73.51% on MCC 467 B 3, which is a terraformed world. Makes you wonder what exactly were the terraformers doing there
And yeah, just to confirm, the only gases ED's ELWs can have in their atmospheres are argon, carbon dioxide (at a rather strict limit), nitrogen, oxygen, water. If any other gas is present, then the planet gets downgraded to WWTC status.
Oh, and on the matter of argon atmospheres and breathability, way back when there was this interesting thread.
Update: actually, I noticed that the nitrogen and oxygen levels recorded in the journals don't match what's displayed on the system map, and together with the argon, they often add up to well over 100%. Gonna have to look into this in more detail.
Here's a quick histogram:
I wonder what that bump around 12% might be about, but it could simply be an effect of partial pressures.
The record is 73.51% on MCC 467 B 3, which is a terraformed world. Makes you wonder what exactly were the terraformers doing there
And yeah, just to confirm, the only gases ED's ELWs can have in their atmospheres are argon, carbon dioxide (at a rather strict limit), nitrogen, oxygen, water. If any other gas is present, then the planet gets downgraded to WWTC status.
Oh, and on the matter of argon atmospheres and breathability, way back when there was this interesting thread.
Update: actually, I noticed that the nitrogen and oxygen levels recorded in the journals don't match what's displayed on the system map, and together with the argon, they often add up to well over 100%. Gonna have to look into this in more detail.
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Good to know marx, so I'll consider that the 51% Ar is in a top 3% category in terms of reported ELWs with Argon and less rare that some others I've seen. Thanks for the context! o7
Hello, CMDRs!
ELW directly orbiting two Neutron Stars in system with Black Hole main star. Is it Very Rare?
ELW directly orbiting two Neutron Stars in system with Black Hole main star. Is it Very Rare?
Fairly unusual, yes.
I found a few interesting ones.
First one is ringed and around a Neutron star
Second one is a binary ELW around an A type star
Third one is a binary with a HMC around a Neutron star
Pretty sure I got more, but I'm too lazy to check lol. Also the first one is really close to Colonia. I can't believe someone didn't surface scan it yet. I found it before the DSS was introduced and just figured I'd let someone else tag their name on it.
First one is ringed and around a Neutron star
Second one is a binary ELW around an A type star
Third one is a binary with a HMC around a Neutron star
Pretty sure I got more, but I'm too lazy to check lol. Also the first one is really close to Colonia. I can't believe someone didn't surface scan it yet. I found it before the DSS was introduced and just figured I'd let someone else tag their name on it.
Whilst spanshing to Meow Force 1 a couple of months ago from Colonia, i found 2 neutron stars en route with ELWs around them.
The first one as part of 3 celestial objects orbiting the NS itself
and up-close (dark ELW, everything will be starved for energy..) :
Second one is a Neutron Star with a M class sec. star that has an ELW + 4 other THMCs around it.
The first one as part of 3 celestial objects orbiting the NS itself
and up-close (dark ELW, everything will be starved for energy..) :
Second one is a Neutron Star with a M class sec. star that has an ELW + 4 other THMCs around it.
I was finally able to cross this off my bucket list thanks to my Alt doing some neutron jumping between GGGs.
But then, a couple of weeks later, I ended up getting another one, this time on my main account.
Luck can be a strange thing
