Drepan is the second planet in its system, orbiting Bukhana, a G3-class star.
Drepan has a mean diameter of approximately 15,000 kilometers.
Drepan's crust is 47.5% oxygen, 22.6% silicon, 21.2% aluminium, 1.3% nickel, 4.5% other metals, and 2.9% other elements.
Drepan's surface is approximately 50% water. The remainder of the surface, excepting the polar ice caps, is taken up by a large, tropical supercontinent.
The atmosphere of Drepan is 74.7% nitrogen, 24.2% oxygen and the remainder other gases. The pressure at sea level is 0.94 bars.
Drepan takes 28 standard hours to rotate on its axis. It has an axial tilt of 18 degrees, and is stable.
Drepan has two large moons.
Intense geologic activity means that canyons and other rocky features are a common sight in all biomes.
Life is abundant here, and a wide variety of outlandish organisms are present. The planet is also home to the sapient Meyu.