A matryoshka, or Russian nesting doll, is a set of wooden dolls of decreasing size placed one inside another. It seems an appropriate name for a system containing three moons of a gas giant that regularly collide and on occasion collide simultaneously.

The system was first visited by commander Noobdoge, but it commander Regza who discovered the significance of the orbital data and drew the Galaxy's attention to this backwater system.

The three moons of the ringed Class IV gas giant Eoch Flyuae YK-K c10-56 orbit very closely, approximately 13,000 km from the surface of their parent.

Planet 2, a landable High metal content world, orbits very closely too, at a distance from the surface barely different from the radius of the Gas Giant. The barycentre is only 800km above the surface. This makes a very crowded part of the system with fast moving bodies.

The gas giant has two very thin rings at just 4 and 5km in width. They are invisible and unscannable. Though this is not really surprising considering that the rings must pass through bodies 1 b and 1 c.

The other unusual thing about these moons is that their nomenclature does not match their positions in the orbit. Body 1 b is closest to the gas giant, then 1 c and 1 a is furthest away.

The orbital inclinations of the three moons only differ by 6 degrees, they are very nearly circular orbits and the difference between their semi-major axis is less than their combined radii, so they are guaranteed to collide on every orbit.

| Bodies | Synodic Period (days)
| 1 c vs 1 b | 22.21

| 1 c vs 1 a | 9.93

| 1 b vs 1 a | 6.86

Triple collisions with all three bodies colliding simultaneously are not as frequent

| Start | End | Duration

| 2026-10-28 15:06:05 UTC | 2026-10-28 16:21:57 UTC | 1:15:52

| 2027-11-09 23:54:00 UTC | 2027-11-10 02:45:09 UTC | 2:51:09

After 2027 the next collsion will be in 2030

Planet 1 b has a Sulpher Dioxide atmosphere and when it collided in early 3311 it was the first time a thick atmosphere planet has ever collided with a landable body. Observers were shocked to see the planet vanish completely from sight until it re-emerged a short while later.

A matryoshka, or Russian nesting doll, is a set of wooden dolls of decreasing size placed one inside another. It seems an appropriate name for a system containing three moons of a gas giant that regularly collide and on occasion collide simultaneously.

The system was first visited by commander Noobdoge, but it commander Regza who discovered the significance of the orbital data and drew the Galaxy's attention to this backwater system.

The three moons of the ringed Class IV gas giant Eoch Flyuae YK-K c10-56 orbit very closely, approximately 13,000 km from the surface of their parent.

Planet 2, a landable High metal content world, orbits very closely too, at a distance from the surface barely different from the radius of the Gas Giant. The barycentre is only 800km above the surface. This makes a very crowded part of the system with fast moving bodies.

The gas giant has two very thin rings at just 4 and 5km in width. They are invisible and unscannable. Though this is not really surprising considering that the rings must pass through bodies 1 b and 1 c.

The other unusual thing about these moons is that their nomenclature does not match their positions in the orbit. Body 1 b is closest to the gas giant, then 1 c and 1 a is furthest away.

The orbital inclinations of the three moons only differ by 6 degrees, they are very nearly circular orbits and the difference between their semi-major axis is less than their combined radii, so they are guaranteed to collide on every orbit.

Triple collisions with all three bodies colliding simultaneously are not as frequent

After 2027 the next collsion will be in 2030

Planet 1 b has a Sulpher Dioxide atmosphere and when it collided in early 3311 it was the first time a thick atmosphere planet has ever collided with a landable body. Observers were shocked to see the planet vanish completely from sight until it re-emerged a short while later.