Cooper

Intro
Cooper is a Kerbol-like star not far away from Kerbol, and was one of the first targets for earth-like planets by the Kombaugh satellite, and is thus also known as Kombaugh-15. There are many earth-like bodies, three at least, orbiting Cooper.

Details
It is a bit smaller, less massive, dimmer, cooler, and younger than Kerbol, and so can be thought of as the little brother of Kerbol, although it has the same number of planets. It also can be considered a kerbolar analog, a star similar to Kerbol in many ways.

System
Cooper has a medium-sized but interesting system, with a similar hierarchy to the system surrounding Kerbol. They are:

Novus, a bigger version of Moho.

Brand, a mish-mash of Kerbin and a desert planet, with large dry rocky expanses but also fresh 'rivers' of water around the planet. It was named after the lead scientist that was observing it at the time. It has a sizeable grey rocky moon, Wolf.

Fuego, a lava planet due to extreme tidal forces with the other planet in the binary planet system.

Agua, the other planet in the binary planet system with Fuego, it is very similar to Laythe and Kerbin.

Mirt, a more habitable version of Duna with a small asteroid moon, Klein.

Njord, a ringed ice giant with a wormhole and two moons, Folta and Comida.