Grom

Grom is a planet distant planet 64 light-years from Terra. It orbits around the star Eta Crucis (Bolang in the Marlok language of the Renzar) in the constellation Crux. (HD 105211 / HR 4616). Bolang is a main sequence star, with a radius 30% larger than the Sun and 1.5 times its mass. Bolang's color is yellow and it gives its energy and heat to Grom at a distance of 1.98 Astronomical Units.
Grom has a diameter of approximately 13 thousand kilometers and a slightly higher mass than Terra, so its gravity is slightly higher, making higher life-forms have a thick and robust construction. That increased gravity also retains a denser atmosphere, very similar in composition to Terran's (mostly nitrogen ~72%, oxygen ~27%). The pressure at sea level is also somewhat higher, forcing extraplanetary visitors to acclimatize to the new environmental conditions for a while. The planet rotates on its axis in about 25.4 Terran hours, and its inclination of 24.2 degrees allows the existence of seasons. It takes approximately 1.35 Terran years to complete one revolution around Bolang. Life on the planet is based on carbon, and the atmosphere has 8% more oxygen at sea level than on Terra.
This is a rocky planet, the surface of which is mostly covered by water. It has four main landmasses, some medium-sized islands and numerous smaller ones spread across the world. The four great continents, named Volthur, Dheiron, Ulkaria, and Gromnia after the 
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Category:Planets