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Time for some Y dwarf moon action, shall we?

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Here is a close binary HMC I found yesterday around a Y dwarf (that is orbiting an A star as planet and itself builds a binary with a terraformable WW). Just like the two planets I posted in September, their distance may be a few thousand km. Both of them are terraforming candidates.
They share their luck of being a Y star "moon" with this ringed WW.
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Some systems earlier, I stumbled across what looks like my first trojan system! And again, it were two moons orbiting a Y star. Both are landable, but no geo signals. Here is the orrery map of that:
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I love what a HRGG research in a boxel brings up to light...
 
Took a trip to unlock Palin / Chloe on alt. Then somehow i found myself heading to Colonia and its Engineers - aiming to get 6 birds with one stone.
Then visited Sag A* and Explorer's Anchorage. And back to the Bubble, but taking a detour through the middle of Norma Expanse
So what started as a short 6k ly trip, ended up as a more than 65k ly trip, hitting 600 systems - some of them really interesting.
(yea, already sold the data and uploaded the journals to EDSM)

As this one with a Black Hole system, having a Gas Giant with no less than SIX type I gas giant moons

gg-plus6gg.jpg



Herbig Ae/Be with a class B companion - plus 8 T Tauri babies with a topping of 4 WW (A4, A5, A6, A11) and a tiny Gas Giant with water based life (A8)
Thought it makes a nice nursery, but the next one proved me wrong

herbig-4ww.jpg

Herbig Ae/Be nursery, 11 T Tauri babies and a WW bonus. I couldn't zoom out more :)

herbig-plus18.jpg

A Black Hole / Neutron Star pair. The BH had 4 dwarves as moons (TYLL), 3rd one having a ringed AW as moon (A3G)
The Neutron had also an interesting moon system.

bh-neutron-aw.jpg

G Supergiant Twins (42.2 solar radius)

G-super-twins.jpg


A C-J carbon star, been looking for C carbons, but no luck - plenty of S, MS and CN tho.

Cn-J.jpg


Thought i found the Giant Snow Yellow-White and the Seven Ringed Dwarves.

sno-yw-7dwarves.jpg

but it proved that both she Snow Yellow-White and the Dwarves came with some baggage.

sno-yw-7dwarves-b.jpg
 
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Another neutron annihilator into my little collection. This one spins fast enough to bug out the engine and cause glitches in the jets.
WARNING: DO NOT watch this if you're not comfortable watching rapidly changing bright imagery. Especially if you have epilepsy history. It actually hurt my eyes a little bit.
 
Quick question at @Orvidius I guess. I did check your EDAstro site, but could not find a table providing an answer to my question. I found a class Y dwarf orbiting a class K star and it had 15 moons, which seemed a lot to me. I am pretty sure it the largest amount of moons I personally have seen so far, but for a Y dwarf it might not be unusual. Any data on what IS the biggest number of moons for that class?
 
Quick question at @Orvidius I guess. I did check your EDAstro site, but could not find a table providing an answer to my question. I found a class Y dwarf orbiting a class K star and it had 15 moons, which seemed a lot to me. I am pretty sure it the largest amount of moons I personally have seen so far, but for a Y dwarf it might not be unusual. Any data on what IS the biggest number of moons for that class?
There was this site called Universal Cartographics. Which listed all kinds of interesting galactic records, including most moons. However, it appears to be closed :/
From my memory - most moons was 15, at the time I've checked. Don't quote me on this. According to my memory then, you are tied with the record.
However, aren't Y-types stars? In which case they are just orbiting planets? I don't know.

Edit: I have found this google doc though. Probably outdated. It's from 2015. But it lists Y-type with 15 moons as a record holder :)
 
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Quick question at @Orvidius I guess. I did check your EDAstro site, but could not find a table providing an answer to my question. I found a class Y dwarf orbiting a class K star and it had 15 moons, which seemed a lot to me. I am pretty sure it the largest amount of moons I personally have seen so far, but for a Y dwarf it might not be unusual. Any data on what IS the biggest number of moons for that class?


That's a really good question. 15 sounds about right for the record to me, but I couldn't remember for sure, and of course things change. So I put together a database query to see if I could get some numbers. For this, I'm looking specifically at Y-dwarfs in planetary orbits (shown horizontally to the right in the system map) rather than stellar orbits (shown vertically on the left of the system map). In the query I'm doing this by making sure that the bodies orbiting it end in lower-case letters, as moons have with proc-gen names.

It looks like the new record is 16, which is held by several systems.

Here's a top-10 list:

Code:
mysql> select stars.name,count(*) as moons from stars,planets where planets.parentStar=stars.id and stars.deletionState=0 and planets.deletionState=0 and stars.subType='Y (Brown dwarf) Star' and CAST(planets.name as binary) rlike ' [a-z]$' group by stars.id order by moons desc limit 10;     
+-----------------------------+-------+
| name                        | moons |
+-----------------------------+-------+
| Flyiedge US-U c5-11 7       |    16 |
| Gru Hypue BG-X d1-23 ABC 1  |    16 |
| Prae Flyi XG-S d5-962 12    |    16 |
| Gru Hypue OW-V d2-31 12     |    16 |
| Blaa Phoe BM-K d9-409 9     |    16 |
| Hypeae Fruia DK-I d9-0 AB 2 |    15 |
| Hypao Flee ND-S d4-38 10    |    15 |
| Glaisa VA-U d4-10 3         |    15 |
| Smojue DL-P d5-70 ABC 4     |    15 |
| Blooe Ploe QX-U e2-0 1      |    15 |
+-----------------------------+-------+
10 rows in set (6 min 25.56 sec)
 
That's a really good question. 15 sounds about right for the record to me, but I couldn't remember for sure, and of course things change. So I put together a database query to see if I could get some numbers. For this, I'm looking specifically at Y-dwarfs in planetary orbits (shown horizontally to the right in the system map) rather than stellar orbits (shown vertically on the left of the system map). In the query I'm doing this by making sure that the bodies orbiting it end in lower-case letters, as moons have with proc-gen names.

It looks like the new record is 16, which is held by several systems.

Here's a top-10 list:

Code:
mysql> select stars.name,count(*) as moons from stars,planets where planets.parentStar=stars.id and stars.deletionState=0 and planets.deletionState=0 and stars.subType='Y (Brown dwarf) Star' and CAST(planets.name as binary) rlike ' [a-z]$' group by stars.id order by moons desc limit 10;    
+-----------------------------+-------+
| name                        | moons |
+-----------------------------+-------+
| Flyiedge US-U c5-11 7       |    16 |
| Gru Hypue BG-X d1-23 ABC 1  |    16 |
| Prae Flyi XG-S d5-962 12    |    16 |
| Gru Hypue OW-V d2-31 12     |    16 |
| Blaa Phoe BM-K d9-409 9     |    16 |
| Hypeae Fruia DK-I d9-0 AB 2 |    15 |
| Hypao Flee ND-S d4-38 10    |    15 |
| Glaisa VA-U d4-10 3         |    15 |
| Smojue DL-P d5-70 ABC 4     |    15 |
| Blooe Ploe QX-U e2-0 1      |    15 |
+-----------------------------+-------+
10 rows in set (6 min 25.56 sec)
Ha, I knew I could count on your SQL skills (mine are very rudimentary, besides I am not sure I even have the hardware to run the database on). So, close to the record, but not quite. That's okay, but at least it confirms that 15 is not all that common either. Thanks for the quick response, it is very much appreciated.
 
No problem. ;) Yep, 15 moons still appears to be pretty rare. There are 36 of those in the database, out of 680,449 Y-dwarfs that are in planetary or moon-like orbits, or 1,068,784 Y-dwarfs total.
 
 
Do you have a list of widest rings too?
Long time ago I stumbled upon a ring nearly 97 light seconds wide and now I wonder if this is extraordinary.

The thing that's difficult about rings is that many of them are invisible, particularly the largest ones. I think it has something to do with the density of matter in them, but I don't think anyone has worked out an equation that reliably predicts whether the ring is rendered or not in-game. So pulling a list will probably give us some nice record largest + invisible rings. :D But having said that, here's a top-10 list:

Code:
mysql> select planets.name Planet,subType,rings.name Ring,outerRadius/299792 as radiusLS,innerRadius,outerRadius,mass,type from planets,rings where planet_id=planets.id order by outerRadius desc limit 10;

+--------------------------------+-----------------------+---------------------------------------+----------+-------------+-------------+-----------------+------------+
| Planet                         | subType               | Ring                                  | radiusLS | innerRadius | outerRadius | mass            | type       |
+--------------------------------+-----------------------+---------------------------------------+----------+-------------+-------------+-----------------+------------+
| Col 107 Sector UY-Q b34-4 AB 3 | Class IV gas giant    | Col 107 Sector UY-Q b34-4 AB 3 B Ring | 150.9947 |     7129100 |    45267000 |  39905000000000 | Icy        |
| Phroi Byoe ZT-Y d1-679 6       | Class IV gas giant    | Phroi Byoe ZT-Y d1-679 6 C Ring       | 133.0022 |      632440 |    39873000 |   6221100000000 | Icy        |
| Thaileia TM-A c2-0 7           | Class IV gas giant    | Thaileia TM-A c2-0 7 C Ring           | 131.0909 |     1547300 |    39300000 |  98900000000000 | Icy        |
| Ploi Aewsy AB-V d3-4 14        | Helium-rich gas giant | Ploi Aewsy AB-V d3-4 14 C Ring        | 128.4624 |     6078500 |    38512000 |  29507000000000 | Metal Rich |
| Swoiphs RL-J d10-47 9          | Class IV gas giant    | Swoiphs RL-J d10-47 9 C Ring          | 124.6231 |      926680 |    37361000 | 898880000000000 | Icy        |
| Koiju IR-M d7-2 11             | Class IV gas giant    | Koiju IR-M d7-2 11 B Ring             | 124.2061 |     3694300 |    37236000 | 160610000000000 | Icy        |
| Ellaisms QY-Z d13-12 8         | Class IV gas giant    | Ellaisms QY-Z d13-12 8 C Ring         | 123.3122 |      916920 |    36968000 | 268980000000000 | Rocky      |
| Traikeou RY-Q d5-1 10          | Class IV gas giant    | Traikeou RY-Q d5-1 10 B Ring          | 122.9286 |    23220000 |    36853000 |  13346000000000 | Icy        |
| Dryeia Prou TY-Z d3 B 4        | Class III gas giant   | Dryeia Prou TY-Z d3 B 4 C Ring        | 122.5716 |     1446800 |    36746000 |  13833000000000 | Icy        |
| Synuefuae RY-S d3-0 AB 1       | Class IV gas giant    | Synuefuae RY-S d3-0 AB 1 C Ring       | 121.6710 |     5744500 |    36476000 |  16241000000000 | Metal Rich |
+--------------------------------+-----------------------+---------------------------------------+----------+-------------+-------------+-----------------+------------+
10 rows in set (3 min 54.47 sec)
 
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