Undefined object

Ambiant piece composed in 2005 with one layer of the CS1X Yamaha synth, in a couple of hour.
Sedna was once, for a couple of monthes, the tenth planet discovered. But it's small size and unformal orbit made it relegated, as Pluto, to the status of trans-Neptunian object. So now we keep going with 8 planets, but various things are still floating around there...
Within its stellar range, Sedna is still one of my preferred productions.

Sedna