Sapyx's ED7K Project is underway

[Sapyx]

Results for Sector 2, L-class stars:

Systems surveyed: 200
Stars within systems surveyed: 320 (average number of stars per system: 1.6)
Systems with no planets, only other stars: 38 (19%)
"Colonizable" systems: 3 (1.5%)
"Life-bearing" systems: 2 (1%)
Total number of planets found: 1718
Number of ELWs discovered: 0
Number of TFCs discovered: 3
Number of Ammonia Worlds discovered: 0
Number of Water Worlds (all types): 2
Number of systems previous explored by other CMDRs: 0

Observations: these L-type stars were even less interesting than the ones in Thraikoo. Although a larger number of planets overall were found, fewer gas giants and HMCs were found - meaning that the vast majority of the planets and moons were iceballs. If it weren't for that one star system with binary waterworlds, I wouldn't have found any waterworlds at all.

Since this sector is a "lower" sector, it contained a slice of the Galactic Brown Dwarf Disc, and I took full advantage of this, taking two transects through the disc. Disc L-class stars are all a-mass-code, which means that this time, I have a large number of a-mass-code stars in the data set: 46 out of the 200 are code-a. Anecdotally, the a-code ones seemed to be slightly more likely to have just a strong of airless iceballs, but I don't think this is strong enough to push the data significantly.

Surprise of the trip: a single, lonely ammonia-life gas giant, the only ammonia-based life found in an L-class so far in this Project. You know things are pretty boring when a GGABL is an object of interest.

 

[marx]

Thanks for continuing this!
A question: how many of the stars you visited were Vz? I'm asking because, as I mentioned earlier, they have different systems (much "worse"), and B stars tend to have plenty of B0 Vz-s. I imagine you didn't filter them out by hand, so it would be good to know how many you came across on your way, via the plotter. The journals record them now.

 

[Sapyx]

No, the only filtering was using the star class filter. Is ther ean easy way to extract the counts from the journals? CLicking on each star in either the EDSM flight log or the in-game visited stars filter is going to be a pain.

 

[marx]

Let's see... You'll want to search for this part:
"Luminosity":"Vz"
and maybe also
"StarType":"B"
unless you only went through class B systems for a while.

I assume you don't have access to Unix commands, but if you do, I'd recommend them. On Windows, just using EDJP's journal merging feature will give you one file to parse, and then you can use any text editor to count the above.

 

[Sapyx]

@marx, sorry for the delay in replying, had a hectic week and only now getting some time to look at this. I merged the journals and ran the searches, and out of 206 log entries (obviously a couple are doubled-up,I couldn't easily tell which ones) 146 of them were B0 Vz. So it looks like about 3 out of 4 B-class stars in this sector, when chosen at random, were B0 Vz. The odds get better when considering just single-star systems, only 66 out of 103 (roughly 2 out of 3) of those were B0 Vz. And that one Earth-like moon I found? It was in a B0 Vz system with mass code "e".

Meanwhile, I'm now slowly working through the A-class survey. What do I find in the 32nd star I visit? Binary Earth-likes - my first binary pair. Now, to find one of those elusive Ringed ELWs, which I still haven't found one of yet... it's only a matter of time, surely.

 

[marx]

Hm, interesting, I didn't think there would be that many. So that part was more of a survey of Vz B stars then. That's actually quite interesting, because now I wonder if that's really a bad thing for the B-s then. For the other main sequence stars (except O, of course), ELW numbers drop like a rock around these stars (see the "By Luminosity" subsheet on the ELW list), but the low luminosity and system age might actually help there.
When I get back, I'll take a look at the EDSM data, try and see how many of the ELWs found around B stars are around B0 Vz stars.

Oh, and congrats on the binaries! Yup, it'll just be a matter of time until you find some rings too. Certainly not a matter of a curse, like me being unable to find any Herbig ELWs.

 

[Sapyx]

Results for Sector 2, A-class stars:

Systems surveyed: 200
Stars within systems surveyed: 373 (average number of stars per system: 1.86)
Systems with no planets, only other stars: 54 (27%)
"Colonizable" systems: 62 (31%)
"Life-bearing" systems: 66 (33%)
Total number of planets found: 2161
Number of ELWs discovered: 4
Number of TFCs discovered: 137
Number of Ammonia Worlds discovered: 6
Number of Water Worlds (all types): 39
Number of systems previously explored by other CMDRs: 1

Observations: A-type stars continue to be one of the best for locating valuable and interesting systems. Overall, the stats for Sector 1 and Sector 2 A-class stars are similar, though I will highlight some notable differences.

This time, Ammonia worlds (6) outnumbered ELWs (4). Averaging across the two sectors, the AA:AW:ELW ratio for A-class stars is now very close to the widely reported 10:1:1 ratio. As for waterworlds, while the total number discovered is very similar (39, compared with 38), the proportion of them that are terraformable is much higher in Sector 2, with 18 of those 39 found to be terraformable, compared to 13 last time. And while the total number of colonizable systems is about the same, the number of actual terraformable planets is noticeably increased - meaning an overall increase in the number of terraformable planets per colonizable system (2.21, compared with 2.00).Which is surprising, given that there has been an overall decrease in the total number of planets detected.

There were many more mass code e systems in this survey: 15 out of the 200 stars.

Surprise of the trip: has got to be my binary Earthlikes I mentioned earlier - that one single star system accounts for half of my ELW discoveries in this post. They were close enough to get a good screenshot of the pair of them, too.

 

[Sapyx]

And wouldn't you know it... just over a third of the way through the F-class survey, and Earth-like number 3 is a ringed one!

With a landable potato-moon in close proximity, too.

 

[Sapyx]

Results for Sector 2, F-class stars:

Systems surveyed: 200
Stars within systems surveyed: 399 (average number of stars per system: 2)
Systems with no planets, only other stars: 52 (26%)
"Colonizable" systems: 54 (27%)
"Life-bearing" systems: 75 (37.5%)
Total number of planets found: 2467
Number of ELWs discovered: 4
Number of TFCs discovered: 123
Number of Ammonia Worlds discovered: 7
Number of Water Worlds (all types): 42
Number of systems previous explored by other CMDRs: 0

Observations: There seems to be as many similarities between A and F stars in this sector than there is between F stars in the two sectors scanned so far. The number of ELWs found was the same as for A-stars (4) but the amount of life detected overall is significantly higher; 75 out of 200 is the highest ratio in the Project so far. Perhaps it has something to do with Core stars generally being older in age, and life is more probable in older systems? And I don't know if it's directly connected to being in the Core, but compared to Thraikoo, the number of stars has gone up, while the planet-count has gone down. Planet counts are lower across the board compared to Thraikoo, with only rocky moons, waterworlds (both types) , ammonia giants and water giants recording higher counts in Sector 2. The number of water giants was 8, if anyone's curious - a record high so far, including one binary pair of WGs.

The WW:AW:ELW ratio in this survey was 42:7:4, keeping the ratio for F-stars mostly unchanged. In life-bearing giants, the water/ammonia ratio was 33:18, higher overall but about the same roughly-2:1 ratio. As was the case in Thraikoo, all the systems surveyed were mass code d.

Surprise of the trip: has got to be my ringed ELW I posted above. Though ELW hunting in this survey is proving to be a good demonstration of the vagaries of probability: the ringed ELW was the third in this survey, found in star system number 72; I thought I might be heading to smash the ELW count record, but it took nearly another 100 star systems before my next and final ELW, in system number 167. The only other "surprise" was of the nastier kind, jumping onto a "toaster" binary star and getting roasted. Good thing I hadn't chosen that particular star system to go AFK while in mid-jump.

 

[Sapyx]

Not quite a survey update, just a news flash: I'm 5/8ths of the way through the G-class survey, and I've found another binary ELW. This brings my total of G-class ELWs in this sector to 5 so far - over twice as many as I found in the previous sector in that class... and I'm still statistically likely to find maybe one or two more in the remaining 74 stars.

This pair isn't quite as scenic as my previous pair. In the pic below, the second ELW (which is the larger of the two) is nearly 4 Ls away, the tiny dark blue blob my ship is pointing at.

 

[Sapyx]

Results for Sector 2, G-class stars:

Systems surveyed: 200
Stars within systems surveyed: 376 (average number of stars per system: 1.88)
Systems with no planets, only other stars: 55 (27.5%)
"Colonizable" systems: 45 (22.5%)
"Life-bearing" systems: 75 (37.5%)
Total number of planets found: 2174
Number of ELWs discovered: 6
Number of TFCs discovered: 90
Number of Ammonia Worlds discovered: 5
Number of Water Worlds (all types): 33
Number of systems previous explored by other CMDRs: 0

Observations: In some ways, this survey is identical to the Sector 1 G class survey - about the same number of stars, planets, "empty" systems, terraformables and Ammonia Worlds. In other statistics, it is radically different. The biggest difference is of course the number of Earth-likes, at 6 it was three times as many and is now the record-highest ELW count for a survey. There were nearly double the number of Waterworlds. and despite the number of habitable planets slightly increasing, the number of systems that those planets were present in (the "colonizable systems" statistic) is sharply down. Meaning that, overall, while the number of "gem" systems was down, the quality of the gems was up, with an average of 2.13 colonizable planets per colonizable system.

Once again, there was a near-even split between mass codes d and c; 105 stars were mass-code c, 95 were d. No G-class giants happened to be included in the survey, though there are several present in the sector. Four of the ELWs (including the binary pair) were in d-code systems, two in c code.

We see the continuing trend of lIfe generally seems to be slightly more probable in this Core sector. The WW:AW:ELW ratio in this survey is radically skewed by the much higher than usual number of ELWs: at 33:6:5, that's about a 6:1:1 ratio. Since in every other survey the WW:ELW ratio is quite consistently at around 10:1, I statistically "should have" found only three ELWs in this sector. In the life-bearing gas giants, the numbers are also up but the water:ammonia ratio is slightly more biased towards water, at 37:22.

Trivia I had not noted before: the number of terraformable moons drops off sharply at around G class. In both this sector and the previous, there was only one terraformable Rocky moon in the G class surveys; in the next two higher star classes (F and A) there were 9 each in Thraikoo, and 6 and 5 in this sector. In Thraikoo, there were no terraformable moons in any of the K, M or L systems. We shall have to see if that pattern repeats.

Surprise of the trip: Has got to be the second binary ELW of the Project. It certainly helped bump up the total ELWs, not only for the survey but for the Sector, which at 15 is now higher than the total for Thraikoo. Perhaps surprising, from a planetological point of view, is that these two ELWs are of different Groups: the larger one is a "Group 3" (high gravity, thin-atmosphere) but the smaller one, too small to qualify as Group 3, is a Group 2 (medium gravity, thick atmosphere) - which seems to put paid to the theory that the different Groups are generated in different kinds of conditions the Stellar Forge generates. My earlier ELW binary pair were both Group 3. As I don't have many other binaries or trinaries in my database, I shall have to examine the surface conditions of other binary-pair ELWs to test this theory further.

 

[Dionysymbiant]

I'm incredibly impressed by your efforts and most certainly look forward to the final results! Makes me want to do my own scientific expedition one day!

 

[marx]

First off, I love how you include the "number of systems previously explored by other CMDRs". I have to admit, it tempts me to do the same in some sector close to the bubble

Second, it would be interesting to see how the characteristics of paired ELWs ends up. I never really looked into that. Once you look through those, will you post the results here, or somewhere else?

Third, your second binary ELW pair (congrats!) demonstrates pretty well how small sample sizes distort things. On a large enough sample, systems with two (or even more) ELWs wouldn't distort things, because they are that rare: here, one such system modified the totals significantly.
But say, am I reading this right, and did you not find any systems with two ELWs that weren't binaries yet?

 

[Sapyx]

First off, I love how you include the "number of systems previously explored by other CMDRs". I have to admit, it tempts me to do the same in some sector close to the bubble

I have scheduled sector 3 to be an "upper bulge" sector, where the stars are a bit thinner; I'd expect higher Tag counts up there.

Second, it would be interesting to see how the characteristics of paired ELWs ends up. I never really looked into that. Once you look through those, will you post the results here, or somewhere else?

I've been thinking of starting a new separate thread looking at ELW Classification Groupings, but the Survey is taking all my spare time right now. I'm thinking of popping back to the Bubble after this sector, to dump the rest of my data (i'll probably have sixty pages worth by then) and should have some spare time, and a few more ELW data points, by then. But the only other multiple-ELW systems I have entered full stats for are the Nyeajee triplets, which are Grouped 3-2-3, and another binary where they are both Group 1. I wouldn't expect to find many 3-1 pairings, since that great a size disparity is more likely to end up as a planet-moon configuration (which of course we've never seen).

But say, am I reading this right, and did you not find any systems with two ELWs that weren't binaries yet?

As in, two ELWs orbiting the same star, but in separate orbits? And/or two ELWs orbiting different stars in the same system? Nope, haven't found either of those configurations yet. I've reported a couple of ELWs in those other configurations to the List, but they weren't my First Discoveries. Those two binaries are my only two multiple-ELW systems.

 

[Sapyx]

Results for Sector 2, K-class stars:

Systems surveyed: 200
Stars within systems surveyed: 407 (average number of stars per system: 2.04)
Systems with no planets, only other stars: 62 (31%)
"Colonizable" systems: 28 (14%)
"Life-bearing" systems: 38 (19%)
Total number of planets found: 2056
Number of ELWs discovered: 1
Number of TFCs discovered: 43
Number of Ammonia Worlds discovered: 3
Number of Water Worlds (all types): 17
Number of systems previous explored by other CMDRs: 0

Observations: This K class sector was even worse than the first one, with only one lonely ELW found. This leg has been a sorry tale for life and colonizability, generally, with all stats trending lower. This despite the total number of planets found being almost identical. The terraformable ratio for water worlds is also down with only 7 out of those 17 water worlds terraformable. And that one ELW was in the B4 position in a triple star system, orbiting an M-class star, so I still haven't actually found an ELW around a solo K star in this Project.

As last time, the stars surveyed were almost entirely mass code c (190); there were no mass code b this time but 10 code d systems were included. One of those d-code systems was a K-class orange giant star; giants are of course much more common in the Core so it shouldn't surprise that I happened to hit one. It didn't skew the stats much, though, with it being a barren system (just 3 other stars present). Red Giants (M class) are much more common than Orange Giants, so we shall have to wait and see how many red giants we can snaffle up in the M class survey, and whether those giants will skew the M-class stats.

The WW:AW:ELW ratio in this survey was 17:3:1, which is I think the closest I've come so far to my speculated 10:3:1 ratio. They're small numbers to make any conclusions from, though. In the life-bearing giants, the previous ratio is reversed, with 17 water-based and only 11 ammonia-based.

Surprise of the trip: I would have to say it was an "ABCDEF" system: six small, dim stars in close proximity (the largest of course being K-class), in two clusters of three, with a couple of gas giants orbiting the lot. Whole bunch of landable moons too. I seem to recall a thread where someone was looking for such systems, so I'll post it there once the data is sold.

 

[Sapyx]

Results for Sector 2, M-class stars:

Systems surveyed: 200
Stars within systems surveyed: 391 (average number of stars per system: 1.96)
Systems with no planets, only other stars: 65 (32.5%)
"Colonizable" systems: 12 (6%)
"Life-bearing" systems: 17 (8.5%)
Total number of planets found: 1751
Number of ELWs discovered: 1
Number of TFCs discovered: 18
Number of Ammonia Worlds discovered: 1
Number of Water Worlds (all types): 6
Number of systems previous explored by other CMDRs: 0

Observations: To answer the question posed in the second paragraph of my previous post: yes, having some Red Giants in the Class M mix has certainly improved things, though the stats overall would still have been better than the Thraikoo stats, even without them. In the three Red Giant systems I happened across, there was one ELW, one terraformable waterworld and three other terraformables. But overall, this survey has higher stats for all desirable planet types (except Ammonia Worlds), despite the overall planet count being lower and the number of "empty" systems increasing.

There was a much more diverse mixture of mass codes in this survey, with 137 in mass code b and 60 in mass code c. The three Red Giants were of course all mass code d. The increased overall quality of Class M systems in this survey may have something to do with the increased number of code c systems; further examination of the data may be warranted. I did notice some "mass code a" red dwarfs up in the Brown Dwarf disc, but I didn't happen to take any transects across the Disc in this survey and didn't happen to hit any a-code stars while passing through it. None of the visited systems were previously explored by other CMDRs, not even the red giants.

The WW:AW:ELW ratio in this survey was 6:1:1; we still need several more sector's worth of data to get a good glimpse at the overall ratio in M class systems. In the life-bearing gas giants, water life out-numbered ammonia life this time, with a ratio of 9:7.

Surprise of the trip: with ELWs known to be much more probable in Red Giants than in Red Dwarfs, it wasn't much of a surprise that I happened to find one. The configuration of the system, however, was unusual: just four objects - the Red Giant, a distant K star, a nearby M star and the ELW in a mildly eccentric orbit around the M star. At a mean distance between the ELW and the red dwarf of 500 Ls, it's at about the same distance as Earth from the Sun - so it's fair to say that almost all the heat on this world is coming from the Red Giant, 9500 Ls away. Yes, that little brown dot is the ELW - it's a hot, dry desert planet with not much in the way of oceans.

 

[Sapyx]

And here I must pause the Survey, to return to the Bubble and cash in this vast bulk of Survey data I'm sitting on. I will be stopping off at Explorer's anchorage, just to sell off the ELW data, at which point I will do a summary of the Sector.

 

[Sapyx]

And so, "Sector 2" is the Wepooe sector. Some pics are Marx's ELW thread; will post some more here tomorrow.

I will note here that I found one more ELW after leaving Wepooe - and it's another Ringed ELW!

 

[Mooing]

I absolutely love this! If this ever gets expanded, I would love to be a part of that!

 

[Sapyx]

Okay, here's my tourism summary of the Wepooe Sector.

Wepooe - The Heart of the Core

Here's the mugshots of the 17 ELWs found in this Sector.

Now, for some other scenery. Nothing really to rave about, just 13 moons orbiting a brown dwarf:

Here's one of the two double-blue-bubble class planetary nebulae, the Wepooe NX-T e3-3253 Nebula, from the nearby AV-N d7-1216 system.

Now, when you see an FSS screen that looks like this, you just know that there's some post-catastrophic orbits to see in the orrery. Even though the regular system map looks pretty boring, the orrery reveals the chaotic truth. And yes, there's an ELW in that mess.

Just another ELW - this one's planet ZE-A - with it's "moon" - actually a large terraformable co-orbiting planet - in the background.

How about a gas giant with two HMCs and two other gas giants for moons?

Another gloomy Earth-like-rise from a neighbouring HMC; this one's planet FL-P.

Getting there... from Colonia

While enroute, don't miss out on seeing one of the more spectactular GGGs, in the Dryooe Prou FF-Z d696 system - it's not on the direct route, but the view is definitely worth the minor detour.

Another must-see: the Byoomiae Trojan, in the Byoomiae UY-A d2780 system. Not only is it a spectacular example of an Earth-like planet in a gas giant's Trojan point, but the ELW has four moons, including a pair of close-orbiting landables.

Getting there... from Sag A

I was in a bit of a rush, so the only scenic sight I saw was another ringed Earth-like. I think the rings on this one are a bit more scenic than on the one in Wepooe. The system is Hypoe Pruae ZE-Z d7510.