Sarkanna

Sarkanna is a Class K star in the Crab Nebula. After a nearby star went supernova several thousand years ago, Sarkanna was swamped once more with dust and gas which would later become the Crab Nebula.

Zema
Half as large as Gaea, Zema was the former homeworld of the Iztur, an ancient, powerful civilization that flourished during the Ninth Eon. In the past, Zema was covered in sprawling, towering cities over endless deserts. After the Iztur's destruction, these cities faded into ruin, leaving no trace of their existence. Today, Zema sports thick overgrowth that blocks out the sun due to heightened oxygen levels. Raging wildfires have created vast deserts in between these jungles.

Zema used to possess a moon which has long since been destroyed by a rogue comet. Today, Zema has a ring system.

Perkon
Perkon is a habitable world albeit with a thick greenhouse atmosphere. At six times the size of Gaea, it is covered in 90% ocean and endures constant thunderstorms and hypercanes. Its position at the far edge of the habitable zone gives it giant ice caps.

Sasaldet
Sasaldet is an icy world four times as large as Gaea. It just beyond the asteroid belt, having formed when Salmus migrated outward three billion years ago. Because of this, Sasaldet does not appear in the ancient archives the Iztur had left behind.

Salmus
Salmus is a gas giant slightly smaller than Jupiter. It has a large ring system and 43 moons. One billion years after the Iztur's exinction, it migrated outward due to gravitational influxes. The asteroid belt began to coalesce to form the planet Sasaldet.