RV Sonnenkreis - Decoding Universal Cartographics

BaldEagle

BaldEagle
A couple more scans:
https://docs.google.com/spreadsheets/d/1nh5ATvRB1lLuRgYosBwIYjVSl7edSFXpshd355stwNU/edit#gid=0
new graph
bepbNbr.jpg

and another ELW :)
 

Jackie Silver

Jackie Silver
Nice going, BaldEagle! -I tried some more Taen method yesterday - didn't discover anything much as the density where I was looking is very low, but it was interesting that in the 64 mass code B subsectors I looked at, each had one and only one star system in the subsector. Some kind of flattening out towards zero...
 

BaldEagle

BaldEagle
Jackie Silver said:
Nice going, BaldEagle! -I tried some more Taen method yesterday - didn't discover anything much as the density where I was looking is very low, but it was interesting that in the 64 mass code B subsectors I looked at, each had one and only one star system in the subsector. Some kind of flattening out towards zero...
Click to expand...
I confess I haven't really taken in that approach as I need to understand better the 'box generation' process.
I am just happy I found the excel function which taken a comma-delimited string (the co-ords) and separates it into separate columns :eek:
 

Taen

Taen
Jackie Silver said:
Nice going, BaldEagle! -I tried some more Taen method yesterday - didn't discover anything much as the density where I was looking is very low, but it was interesting that in the 64 mass code B subsectors I looked at, each had one and only one star system in the subsector. Some kind of flattening out towards zero...
Click to expand...

Any chance I can see an example of what format you're putting the data in? I would like to be a bit more active on this, but would prefer to keep whatever I do consistent with what you are doing.
 

Jackie Silver

Jackie Silver
Taen said:
Any chance I can see an example of what format you're putting the data in? I would like to be a bit more active on this, but would prefer to keep whatever I do consistent with what you are doing.
Click to expand...

Sure - sorry I haven't posted more, I'm a little under the weather (metaphorically and uh, non-metaphorically) at the moment.

This is the latest I have, but I need to integrate the next four (?) sets from BaldEagle and plot things out better.
 

BaldEagle

BaldEagle
Hope you are feeling better Jackie [ugh]
I have been on a bit of R&R but have now completed 11 series:
https://docs.google.com/spreadsheet...wIYjVSl7edSFXpshd355stwNU/edit#gid=1199165132

This is how my graph looks:
l3EWvA5.jpg

I have noticed that in the sparser regions (009, 010 and 011) the figures are more erratic.
Since I began this work I have now found 7 new ELWs :)
2 were a binary pair, 1 was in a NS system and the last 2 were in successive systems!
So - I will carry on for now. Just about to turn 'left' and head 'west' along the arm.
 

Jackie Silver

Jackie Silver
BaldEagle said:
Hope you are feeling better Jackie [ugh]
I have been on a bit of R&R but have now completed 11 series:
https://docs.google.com/spreadsheet...wIYjVSl7edSFXpshd355stwNU/edit#gid=1199165132

This is how my graph looks:
https://i.imgur.com/l3EWvA5.jpg

I have noticed that in the sparser regions (009, 010 and 011) the figures are more erratic.
Since I began this work I have now found 7 new ELWs :)
2 were a binary pair, 1 was in a NS system and the last 2 were in successive systems!
So - I will carry on for now. Just about to turn 'left' and head 'west' along the arm.
Click to expand...

Thanks - that's a sterling effort there! I'm just about recovering from a serious dose of lurgy, but I'll be off for Christmas hols after tomorrow so should have more time to do things soon.
 

BaldEagle

BaldEagle
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Jackie Silver

Jackie Silver
That's a serious chunk of data, brilliant. :)

It looks clear from this that wherever in the galaxy we are, the drop-off of densities follows a broadly similar path.

The next step may be to pick an area where systems are plentiful, and take a series of density readings very close together then average them out to get a set that is smoother.

And thanks, I'm much improved now. It's not like me to have to take time off work, although I work in a school and they tend to be plague pits... :)

At present I'm heading out to rejoin DECE; I passed IC 1805, Heart and Soul and the EAFOTS bases earlier and I'm trying to cross the Formidine; I'm not sure my new Clipper is up to the task of making a crossing to the Zurara.
I'd forgotten just how much I enjoy flying the Clipper, and this thread of all places is an appropriate venue to declare that love. :D
 
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BaldEagle

BaldEagle
Glad you are back 'on the job' :)
Strangely, I am also in my Clipper 'Northern Light' - https://en.wikipedia.org/wiki/Northern_Light_(clipper) atm.
I may do a few missions to rank-up one more with the Empire and I do love flying it. Not sure if it would have a long enough jump range for my frustration level when covering longer distances though ... :eek:

When I do eventually depart I will find a suitable spot and do some measurements within a smaller band just to compare.
The graph seems to be close to an exponential relationship, which would make sense (wouldn't it?).
 
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Satsuma

Satsuma
Speaking of the Zurara, I just visited it yesterday and saw your name on the primary star, Jackie.

I don't know if you got data from the region, but I went ahead and got density data for Pha Aeb. Stellar density is next to nothing out there, and I was only able to get data to a scale height of about 330 light years. I could have probably gotten 380 with jumponium, but it's pretty clear Rho would be 0.0 for it.
 

oldmanklc

O
OP: I'm hoping maybe you can explain something regarding some data I've graphed out on this page on my aggregation website I recently put up:

http://eddne.io/#/stars.

Here, I'm showing pie charts of the relationship between the primary star class and mass and the system's mass code. There is a very clear increase in average primary star mass as one climbs the mass code ladder. But there is not a clear increase in minimum primary star mass. In fact, even the minimum mass of a H mass coded system is a T Tauri type star with a mass of only .36 solar masses! My current theory without a lot of study is that these systems merely contain a lot of companion stars or something to account for the huge mass code - or it's a bug with the procedural name generation.

Maybe some of you more experienced folks could explain what's happening here better than I?
 

Jackie Silver

Jackie Silver
oldmanklc said:
OP: I'm hoping maybe you can explain something regarding some data I've graphed out on this page on my aggregation website I recently put up:

http://eddne.io/#/stars.

Here, I'm showing pie charts of the relationship between the primary star class and mass and the system's mass code. There is a very clear increase in average primary star mass as one climbs the mass code ladder. But there is not a clear increase in minimum primary star mass. In fact, even the minimum mass of a H mass coded system is a T Tauri type star with a mass of only .36 solar masses! My current theory without a lot of study is that these systems merely contain a lot of companion stars or something to account for the huge mass code - or it's a bug with the procedural name generation.

Maybe some of you more experienced folks could explain what's happening here better than I?
Click to expand...

I think what you're seeing there is what we've been calling the "zones of suppression"- on a line from Sol to Sgr A* and beyond, and also perpendicular to that "west" and "east" of Sol, there are a strip of sectors where (almost?) all the stars in high mass codes are shifted downwards to become smaller stars. So you don't find any big stars near to (x=0).

There's also the effect of big stars becoming stellar remnants of lower mass than the original primary.

@Satsuma - thanks! :) And yes I was the first pilot to arrive in the CoR wing that found the Zurara. It was quite something. *grins*

I'm doing a series of surveys in SCHAFEA sector now which I will average out - I'm planning to do nine surveys close together. So far so good!
 
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Jackie Silver

Jackie Silver
I've finished my SCHAFEA set of surveys - nine in a close area. I'll look at the data as a whole tomorrow, but I've been struck by the great variation even within the small space of the survey area (nine columns in a 3x3 grid with 50ly intervals).

Surveying.png
 

Allitnil

Allitnil
Jackie Silver said:
I've finished my SCHAFEA set of surveys - nine in a close area. I'll look at the data as a whole tomorrow, but I've been struck by the great variation even within the small space of the survey area (nine columns in a 3x3 grid with 50ly intervals).
Click to expand...
That doesn't really surprise me since it is clear that the distribution of systems within the boxels does not produce a properly random result. This is obvious if you look at the EDSM 3D map, eg this area near the bubble:

8OCO3gx.png

and even more clearly when looking sideways, eg this is the northern rim of the galaxy (yellow dot is BP):

RAxySzo.png
The sideways view also shows why measuring the density at 50 LY intervals is probably not ideal as there are clear clumps at 40 LY intervals (and 80 LY once in areas where there are only D mass code boxels).

ps: the sideways view also shows an unexpected lack of density at around -45 LY. I postulate that this is because the brown dwarf layer is being suppressed towards the rim.
 

Jackie Silver

Jackie Silver
Oh, that's fascinating. I hadn't seen those pictures of the distribution!

That needs looking at in more depth. Are the high densities centered in the boxels, that's the first thing, or do they start at a boxels corner.
 
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marx

marx
Hey, that's quite interesting, and has been hiding in plain sight. It's probably an artifact of however the Stellar Forge works - probably not even noticed by FD when they originally made it.

What's curious is that body distribution doesn't appear to produce the same clumps. Although that's more difficult to tell. Will have to look into that too, it should be an interesting clue towards whether or not a system's position has an effect on its contents.

Allitnil said:
ps: the sideways view also shows an unexpected lack of density at around -45 LY. I postulate that this is because the brown dwarf layer is being suppressed towards the rim.
Click to expand...
It's also not present in inter-arm voids where the stellar density is low enough, which makes sense. Although I guess that it depends on how you define the rim: whether such places are part of it, or if it's only the edges of the galaxy. If memory serves, Frontier have been unclear on this as well? Although as far as I know, they've rarely mentioned it anyway. (In-game, there have only been some rumours about alien ship sightings on the rim - or maybe "outer rim"?)
 
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Jackie Silver

Jackie Silver
I separated out procgen systems that fall within the horizontal bounds of the WREDGUIA sector just to the "west" of Sol.

These maps are of the top right ("northeast") corner of that sector.

Mass code "A":
output_A_-150_100_2000_0.5.png


Mass code "B":
output_B_-150_100_2000_0.5.png


Mass code "C":
output_C_-150_100_2000_0.5.png


Mass code "D":
output_D_-150_100_2000_0.5.png


Mass code "E":
output_E_-150_100_2000_0.5.png
 
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