Atmosphere
The atmosphere of Arconae Secundus is strange in that the planet is covered with thick black clouds, making it a dimly lit, night world of sorts. The only light comes from the occasional lightning bolt. The high moisture grants plenty of rain which gives the planet rivers, ravines and a certain amount of fungal vegetation. There are no real trees or variety of flora on Secundus due to the fact that sunlight never reaches the ground.
Arconae Secundus' seasons are dictated not only by its axis but by its extreme orbit, which carries it from nearly as close to the sun as Sukhur at aphelion to as far as Selen at perihelion. By a bizarre stroke of luck, the cloud cover keeps the temperature of Secundus fairly stable (compared to what it would otherwise be) and sets the seasonal pattern essentially as winter/summer/winter/summer.
Colonization
Clan Arcona readily turned Secundus into a training area for its entire military, both force and non-force beings. A sprawling abandoned training facility has been erected in the midst of one of the many rocky plains. It was once "home" to new recruits, veterans looking to keep up their skills, and joint trainers between the Houses of Arcona and other Arcona military forces. The harsh conditions of the planet, as well as varying terrain, still allow for both ground and air-based training to be of the highest difficulty.
Species
The main animal of the planet appears to be a large bat-like creature, which hunts several species of large insect. There are also found small colonies of Humanoid cave-dwelling creatures, which have apparently adapted to the darkness. There is currently an on-going study trying to determine whether there is a link between these Humans, the other beings in the Dajorra System, and the ruins on Arconae Primus.