I think most of players have at least once wondered about replicas of our good old Earth in other parts of the Milky Way, especially on the opposite one. And, in reality, it has been found in several weeks after the game’s release – a kind of reflection of the Sol coordinates relative to the Sagittarius A*. But after this discovery… everything pretty much stopped, nobody was really interested in “Reflected Earthes” on the same old sides (or maybe somebody was but did not think that it would worth the distance and time). So, one of the largest parts (maybe not by the size, but definitely by importance) of my Dreamwalk Expedition was “Reflected Cradle” Project. If you want to know about all the expedition, there is a separate post about it. Here I will just share my calculations and findings on the Reflected Cradle only. So, let’s get to the point!
Definitions And Symbols System
Well, of course this is not some differential calculus, but I still feel the need to clarify some things regarding the designations in this post, so you will not get confused while reading.
We will use this coordinate system (Z axis facing us) looking at the galaxy from above with Beagle Point in the top and Sol in the bottom. We will also utilize classical XYZ order instead of XZY one on the galaxy map. Now we can define Left and Right, Front (Upper) and Back (Lower) sides of the galaxy, so we will have reflected Sol on each side: Sol (original), Sol L, Sol F, Sol R. Sol F was got by reflecting original Sol by XZ plane. As for the Sol L and Sol R it was a bit more complicated. The game has coordinate system with its center located in Sol, but for the calculations to be easy we should have it in the Sag. So, we will do a kind of that. By measuring the coords of the Sag (25 : 25 900 : -21 ; for X it is actually about 25.3, but we can round this up to 25 to make calculating more convenient) we will find the offset of it from the Sol, but at the same time these will show the offset of the Sol from the Sag. And after that, we can swap X and Y (forget about Z for now) to get the coords for the reflected Sol (25 900 : 25 : -21) in the system with coord center in Sag. But how to convert them back to the Sol-centered system? Well, that is pretty easy, we just need to sum up new X with Sag X coords and new Y with Sag Y coords from the Sol-centered system, to get the X Y coords for Sol R. But what is about Z? Well, that is very easy: all reflected L F R Sols will be on the same plane as the original Sol, so Z coordinate should be just zero. All in all we get coords for Sol R (25 925 : 25 875 : 0). The similar way for Sol L: this time we will subtract new X from Sag X coord and sum new Y with Sag’s Y. and leave the Z zero (simply put, we just reflect new Sol by YZ plane), so we get Sol L (-25 875 : 25 925 : 0).
If this method is hard for you to understand, then I have a short explanation: imagine that Sol is fixed on Y axis. Then we turn the XY coord plane by 90 degrees clockwise leaving the galaxy itself still. Now we got a Sol L, then another 90 degrees and we get Sol F, another turn for Sol R and after the last one we end up in the starting position.
For the convenience, these reflected Sols will further be called just Sols or new Sols. Reflected sol will be another thing.
You may seem that this all we need and it will be true, but we still can play with reflections a bit. All 3 new Sols are a bit offset from our axises, so we can reflect them by some planes. For Sol L and Sol R these will be XZ and XY planes (YZ reflection will result in getting Sol L\ Sol R), for Sol F its YZ and XY (XZ reflection will result in getting original Sol). But in addition to it, we can reflect one Sol by both axises, so all in all we get 3 reflections for each Sol. What about the numbers? Not that hard, if you got how I got coords for new Sols. Basically we take the old coords for the new Sol (25 900 : 30 : -21) in the system with coord center in Sag and change signs for X and Y depending on what system you want to reflect. As for Z, it is simple again: because Sols are located on 0 coord and Sag offset is -21, then we just double this value and get -42 for all XY Sol reflections).
So, all in all we got 3 new Sols, each having 3 reflections: 3+3*3 = 12 systems in total. The reflected Sols will be called like that: Sol side letter reflection plane(s) (example: Sol R XZ XY). The last thing to say that despite having the exact coords for the new Sols there are no system on these coords so we take the closest one to them as the new Sol. In addition, we will also check the closest G-class star to these coords, because Sun is a G-class star.
The structure of each section will be:
Some shortings:
Earth-like world – ELW
Water world – WW
Ammonia world – AW
High-metal content world – HMCW
Rocky world* - RW
Ice world* - IW
Solar System – Sol
Sagittarius A* - Sag
Ly – Light years
Ls – Light seconds
Coords – coordinates
*these are actually called bodies in the game, but for the convenience we will call all solid surface bodies worlds
This is the end of the clarifications. You are amazing if you have really read all of this and got how it works.
Reflect Cradle Project Results
Sol F
Sol F
Closest system: Smootoae LD-K C8-0
Closest G star: Smootoae QY-S D3-85
Sol F XY
Closest system: Drooteou KW-I A36-4*
Closest G star: Drooteou BA-Q C8-8 (1)
Sol F YZ
Closest system: Smootoae -S B17-13
Closest G star: Smootoae ND-K C8-9
Sol F YZ XY
Closest system: Drooteou PW-I A36-4 (2)
Closest G star: Drooteou NU-V D3-177 (3)
Earth replicas:
Closest earth-like atmosphere ww: Smootoae QY-S d3-202 4.02 ly (4)
Closest elw: Smootoae PJ-I c9-47 34.68 ly (5)
Closest mooned earth-like atmosphere ww: Smootoae QY-S d3-202 (moon distance: ?) 4.02 ly (4) (6)
Closest mooned elw: Smootoae QY-S d3-129 (moon distance: ?) 41.65 ly (6)
*Using the principle with rotating XY coordinate plane around Sag we get that this system should be the new Sol on the other side of the galaxy. It’s hard to say what whether the rotating or XZ reflecting method gives us the true antithesis of Sol, but because of incredible closeness of Luna’s Shadow to XY reflected Sol, we will consider Smootoae LD-K C8-0 the “true new Sol”. If you think rotating principle is more valid you can calculate distances to the nearest bodies yourself using EDSM: most of that sector is already explored and discovered, so you do not really need to fly all the way there to get these systems.
Well, actually there was not much point in checking these because, as I have already said in the introduction, this had been checked and explored in the first weeks after the release. Nevertheless, I decided to compare calculations and just wanted to visit Luna’s Shadow POI, which is (4) system. It’s really unique because of the distance of only 4.02 ly from the new Sol system. All in all, I spent about 2-3 hours in the sector, checking all coords and searching for other closest bodies to the new Sol, and I stumbled upon some interesting things in them.
(1) The system has 2 water worlds: one is a vague atmosphere one in a binary pair with hmcw, another is earth-like atmosphere with a rocky moon orbiting it.
(2) It is the Derthek's Folly (Counter Point) POI. Basically, the guy just mirrored original Sol by all 3 planes and got this system. Hard to say whether this is the true new Sol on the other side or we should use the one on the 0 meridian (galaxy map coords), but it is still notable because of being first real attempt to find Sol analog on the other side.
(3) The system has some anemones (space pumpkins) on the B 3 A planet. It is located nearly 200k ls from the entry point and is not really worth flying, but this fact should be mentioned.
(5) The system has not one but whole two elws.
(6) Unfortunately, I forgot record the distances to the moons from these bodies. So, it would be nice if someone near the sector could land and check the distances.
Some notable systems in the same sector:
Smootoae GH-V d2-82 – hmcw with a relatively thin metallic ring.
Smootiae JF-R d4-26 – two ringed planets close to each other.
Sol L
Sol L
Closest system: Phae Froa TL-R B4-4
Closest G star: Phae Froa IN-W C1-17
Sol L XY
Closest system: Juemo YJ-G A10-1
Closest G star: Juemo NC-B D1-32
Sol L XZ
Closest system: Phae Froa NA-A D68
Closest G star: Phae Froa FH-Y C15 (1)
Sol L XZ XY
Closest system: Juemo JL-N A6-1
Closest G star: Juemo JW-C D29
Earth replicas:
Closest earth-like atmosphere ww: Phae Froa RG-Y D98 37.49 ly
Closest elw: Phae Froa VM-W D1-58 71.13 ly
Closest mooned earth-like atmosphere ww: Phae Froa NA-A D106 (moon distance: 1.20 ls) 59.73 ly (2)
Closest mooned elw: Phae Froa SM-W D1-22 (moon distance: 3,26 ls) 274.99 ly (3)
Actually this was the first new Sol I visited during my expedition, and I set Sol F first because there was not much to write about it. As for this, it was both interesting and hard. You may see that (3) has an unusual distance from the Sol L, well… I checked more than 300 systems but couldn’t find any mooned elw in the radius of 100 ly. I started to fly out of this radius to check clusters of G and F stars in the radius of 100-200 ly but still nothing. And yeah, in fact I could continue the search but jumping from system to system 6 hours per day and seeing nothing of what you need is really tiring. So, at the end of 3rd day I just gave in and looked for closest mooned elw on EDSM. And as you see it was pretty far from the place too. If you think that I am just unlucky or do not know the right way to search for elws, then go ahead and try find your own there. If you do just leave the comment under this post with the system and I will include it in the list.
Apart from that, flying around the sector searching for stellar bodies was fun, well, at least during the first hours of searching. I also left most of the wws and elws unmapped, so you can take some first-mappings when you will be near this sector (just do not be a douchebag and take all of them).
(1) The system has a ringed aw.
(2) The system has binary pair of water worlds.
Some notable systems in the same sector:
Phae Froa QG-Y D92 – System has 3 wws, with two of them mooned, and 1 elw.
Phae Froa OL-Y D55 – Binary pair of elw and ww.
Phae Froa TR-W D1-10 – 3 wws.
Phae Froa FH-Y C11 - 3 wws.
These are my notes on the systems I visited during the survey. They are roughly written and do not really have anything interesting, but maybe you want to check them too:
earth-like atm ww: phae froa na-a d125\ phae froa na-a d123\ phae froa me-t c3-19\ phae froa qg-y d64
elw: juemo nc-b d1-89\phae froa mf-a d48\ phae froa qg-y d93\Phae Froa VM-W d1-2\ phae froa vm-w d1-58\ phae froa vm d1-13
earth copy: phae froa na-a d106 (moon 1.2 ls) \ phae froa na-a d66 (moon 1.08 ls)\phae froa zf-a c15 (moon 1.19 ls)\juemo mc-b d1-59 (moon 0.91 ls)\ phae froa qg-y d74 (moon 1.3 ls)
double ww: phae froa na-a d106\ juemo wy-d c1-20 \ juemo wy-d c1-20
elw with a moon: Phae Froa SM-W d1-22 (moon 3,26 ls)
other ww: phae froa na-a d39 \ juemo iw-c d17 \ groomee rk-c d14-41 \ phae froa oa-a d116
Definitions And Symbols System
Well, of course this is not some differential calculus, but I still feel the need to clarify some things regarding the designations in this post, so you will not get confused while reading.
We will use this coordinate system (Z axis facing us) looking at the galaxy from above with Beagle Point in the top and Sol in the bottom. We will also utilize classical XYZ order instead of XZY one on the galaxy map. Now we can define Left and Right, Front (Upper) and Back (Lower) sides of the galaxy, so we will have reflected Sol on each side: Sol (original), Sol L, Sol F, Sol R. Sol F was got by reflecting original Sol by XZ plane. As for the Sol L and Sol R it was a bit more complicated. The game has coordinate system with its center located in Sol, but for the calculations to be easy we should have it in the Sag. So, we will do a kind of that. By measuring the coords of the Sag (25 : 25 900 : -21 ; for X it is actually about 25.3, but we can round this up to 25 to make calculating more convenient) we will find the offset of it from the Sol, but at the same time these will show the offset of the Sol from the Sag. And after that, we can swap X and Y (forget about Z for now) to get the coords for the reflected Sol (25 900 : 25 : -21) in the system with coord center in Sag. But how to convert them back to the Sol-centered system? Well, that is pretty easy, we just need to sum up new X with Sag X coords and new Y with Sag Y coords from the Sol-centered system, to get the X Y coords for Sol R. But what is about Z? Well, that is very easy: all reflected L F R Sols will be on the same plane as the original Sol, so Z coordinate should be just zero. All in all we get coords for Sol R (25 925 : 25 875 : 0). The similar way for Sol L: this time we will subtract new X from Sag X coord and sum new Y with Sag’s Y. and leave the Z zero (simply put, we just reflect new Sol by YZ plane), so we get Sol L (-25 875 : 25 925 : 0).
If this method is hard for you to understand, then I have a short explanation: imagine that Sol is fixed on Y axis. Then we turn the XY coord plane by 90 degrees clockwise leaving the galaxy itself still. Now we got a Sol L, then another 90 degrees and we get Sol F, another turn for Sol R and after the last one we end up in the starting position.
For the convenience, these reflected Sols will further be called just Sols or new Sols. Reflected sol will be another thing.
You may seem that this all we need and it will be true, but we still can play with reflections a bit. All 3 new Sols are a bit offset from our axises, so we can reflect them by some planes. For Sol L and Sol R these will be XZ and XY planes (YZ reflection will result in getting Sol L\ Sol R), for Sol F its YZ and XY (XZ reflection will result in getting original Sol). But in addition to it, we can reflect one Sol by both axises, so all in all we get 3 reflections for each Sol. What about the numbers? Not that hard, if you got how I got coords for new Sols. Basically we take the old coords for the new Sol (25 900 : 30 : -21) in the system with coord center in Sag and change signs for X and Y depending on what system you want to reflect. As for Z, it is simple again: because Sols are located on 0 coord and Sag offset is -21, then we just double this value and get -42 for all XY Sol reflections).
So, all in all we got 3 new Sols, each having 3 reflections: 3+3*3 = 12 systems in total. The reflected Sols will be called like that: Sol side letter reflection plane(s) (example: Sol R XZ XY). The last thing to say that despite having the exact coords for the new Sols there are no system on these coords so we take the closest one to them as the new Sol. In addition, we will also check the closest G-class star to these coords, because Sun is a G-class star.
The structure of each section will be:
- List of reflections (including new Sols) with closest system to the coords and closest G star to the coords
- List of systems with closest earth-atmosphere ww, elw, mooned ww, etc to a new Sol with indicated distance to it (Not much point in doing it for 3 reflections because all the nearby sector was explored to find these bodies)
- My own screenshots and thoughts on findings, short story about exploration, other notable places In the sector, commentaries on systems with (*) sign
Some shortings:
Earth-like world – ELW
Water world – WW
Ammonia world – AW
High-metal content world – HMCW
Rocky world* - RW
Ice world* - IW
Solar System – Sol
Sagittarius A* - Sag
Ly – Light years
Ls – Light seconds
Coords – coordinates
*these are actually called bodies in the game, but for the convenience we will call all solid surface bodies worlds
This is the end of the clarifications. You are amazing if you have really read all of this and got how it works.
Reflect Cradle Project Results
Sol F
Sol F
Closest system: Smootoae LD-K C8-0
Closest G star: Smootoae QY-S D3-85
Sol F XY
Closest system: Drooteou KW-I A36-4*
Closest G star: Drooteou BA-Q C8-8 (1)
Sol F YZ
Closest system: Smootoae -S B17-13
Closest G star: Smootoae ND-K C8-9
Sol F YZ XY
Closest system: Drooteou PW-I A36-4 (2)
Closest G star: Drooteou NU-V D3-177 (3)
Earth replicas:
Closest earth-like atmosphere ww: Smootoae QY-S d3-202 4.02 ly (4)
Closest elw: Smootoae PJ-I c9-47 34.68 ly (5)
Closest mooned earth-like atmosphere ww: Smootoae QY-S d3-202 (moon distance: ?) 4.02 ly (4) (6)
Closest mooned elw: Smootoae QY-S d3-129 (moon distance: ?) 41.65 ly (6)
*Using the principle with rotating XY coordinate plane around Sag we get that this system should be the new Sol on the other side of the galaxy. It’s hard to say what whether the rotating or XZ reflecting method gives us the true antithesis of Sol, but because of incredible closeness of Luna’s Shadow to XY reflected Sol, we will consider Smootoae LD-K C8-0 the “true new Sol”. If you think rotating principle is more valid you can calculate distances to the nearest bodies yourself using EDSM: most of that sector is already explored and discovered, so you do not really need to fly all the way there to get these systems.
Well, actually there was not much point in checking these because, as I have already said in the introduction, this had been checked and explored in the first weeks after the release. Nevertheless, I decided to compare calculations and just wanted to visit Luna’s Shadow POI, which is (4) system. It’s really unique because of the distance of only 4.02 ly from the new Sol system. All in all, I spent about 2-3 hours in the sector, checking all coords and searching for other closest bodies to the new Sol, and I stumbled upon some interesting things in them.
(1) The system has 2 water worlds: one is a vague atmosphere one in a binary pair with hmcw, another is earth-like atmosphere with a rocky moon orbiting it.
(2) It is the Derthek's Folly (Counter Point) POI. Basically, the guy just mirrored original Sol by all 3 planes and got this system. Hard to say whether this is the true new Sol on the other side or we should use the one on the 0 meridian (galaxy map coords), but it is still notable because of being first real attempt to find Sol analog on the other side.
(3) The system has some anemones (space pumpkins) on the B 3 A planet. It is located nearly 200k ls from the entry point and is not really worth flying, but this fact should be mentioned.
(5) The system has not one but whole two elws.
(6) Unfortunately, I forgot record the distances to the moons from these bodies. So, it would be nice if someone near the sector could land and check the distances.
Some notable systems in the same sector:
Smootoae GH-V d2-82 – hmcw with a relatively thin metallic ring.
Smootiae JF-R d4-26 – two ringed planets close to each other.
Sol L
Sol L
Closest system: Phae Froa TL-R B4-4
Closest G star: Phae Froa IN-W C1-17
Sol L XY
Closest system: Juemo YJ-G A10-1
Closest G star: Juemo NC-B D1-32
Sol L XZ
Closest system: Phae Froa NA-A D68
Closest G star: Phae Froa FH-Y C15 (1)
Sol L XZ XY
Closest system: Juemo JL-N A6-1
Closest G star: Juemo JW-C D29
Earth replicas:
Closest earth-like atmosphere ww: Phae Froa RG-Y D98 37.49 ly
Closest elw: Phae Froa VM-W D1-58 71.13 ly
Closest mooned earth-like atmosphere ww: Phae Froa NA-A D106 (moon distance: 1.20 ls) 59.73 ly (2)
Closest mooned elw: Phae Froa SM-W D1-22 (moon distance: 3,26 ls) 274.99 ly (3)
Actually this was the first new Sol I visited during my expedition, and I set Sol F first because there was not much to write about it. As for this, it was both interesting and hard. You may see that (3) has an unusual distance from the Sol L, well… I checked more than 300 systems but couldn’t find any mooned elw in the radius of 100 ly. I started to fly out of this radius to check clusters of G and F stars in the radius of 100-200 ly but still nothing. And yeah, in fact I could continue the search but jumping from system to system 6 hours per day and seeing nothing of what you need is really tiring. So, at the end of 3rd day I just gave in and looked for closest mooned elw on EDSM. And as you see it was pretty far from the place too. If you think that I am just unlucky or do not know the right way to search for elws, then go ahead and try find your own there. If you do just leave the comment under this post with the system and I will include it in the list.
Apart from that, flying around the sector searching for stellar bodies was fun, well, at least during the first hours of searching. I also left most of the wws and elws unmapped, so you can take some first-mappings when you will be near this sector (just do not be a douchebag and take all of them).
(1) The system has a ringed aw.
(2) The system has binary pair of water worlds.
Some notable systems in the same sector:
Phae Froa QG-Y D92 – System has 3 wws, with two of them mooned, and 1 elw.
Phae Froa OL-Y D55 – Binary pair of elw and ww.
Phae Froa TR-W D1-10 – 3 wws.
Phae Froa FH-Y C11 - 3 wws.
These are my notes on the systems I visited during the survey. They are roughly written and do not really have anything interesting, but maybe you want to check them too:
earth-like atm ww: phae froa na-a d125\ phae froa na-a d123\ phae froa me-t c3-19\ phae froa qg-y d64
elw: juemo nc-b d1-89\phae froa mf-a d48\ phae froa qg-y d93\Phae Froa VM-W d1-2\ phae froa vm-w d1-58\ phae froa vm d1-13
earth copy: phae froa na-a d106 (moon 1.2 ls) \ phae froa na-a d66 (moon 1.08 ls)\phae froa zf-a c15 (moon 1.19 ls)\juemo mc-b d1-59 (moon 0.91 ls)\ phae froa qg-y d74 (moon 1.3 ls)
double ww: phae froa na-a d106\ juemo wy-d c1-20 \ juemo wy-d c1-20
elw with a moon: Phae Froa SM-W d1-22 (moon 3,26 ls)
other ww: phae froa na-a d39 \ juemo iw-c d17 \ groomee rk-c d14-41 \ phae froa oa-a d116
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