Baal has two moons, called Baal Primus and Baal Secundus. Apparently, the moons were pretty damn close to some Paradise Worlds, with cultures comparible to High Roman Catholic nations but the Age of Strife slightly altered that. With nukes. The moons' populations now spend their time trying to evolve out of the Stone Age.
Or they did, until the mother of all clusterfucks ensued. Baal Secundus is still more or less intact thanks to the intervention of our Spiritual Liege (and when we say intact we mean "utterly trashed by the nids but extensively terraformed to go back to the days of the paradise moon of ancient times"). It has been terraformed back into its paradisal state before the long night on the order of Robu. Baal Primus, on the other hand, is now completely bereft of life after Ka'Bandha showed up to flip off the Hive Mind.
|The Planets, Systems, Regions and Sectors of the Galaxy|
|Imperial Homeworlds:||Holy Terra - Sacred Mars|
|Primarch Homeworlds:|| Baal - Barbarus - Caliban - Chemos - Chogoris - Colchis |
Cthonia - Deliverance - Fenris - Inwit - Medusa - Nostramo
Nocturne - Nuceria - Olympia - Prospero - Ultramar
|Planets:|| Armageddon - Cadia - Catachan - Ganymede |
Krieg - Kronus - Sacris - Sanctuary 101 - Scelus
Tanith - Tartarus - Vigilus - Vraks - Zayth
|Daemon Worlds:||Plague Planet - Sortiarius|
|Systems and Regions:||Solar System - Jericho Reach - Kaurava System |
Halo Zone - Stygius Sector - Taelus System
|Types of Worlds:|| Agri-World - Craftworld - Daemon World - Death World - Eldar World |
Forge World - Fortress World - Hive World - Tomb World