Ceyrail

(*I will be adding the map for this planet soon*)

## Ceyrail's information

This is a temperate marine superearth that was discovered on October 23rd, 1999. The planet has two observed moons around it, one major and one minor. The planet’s life is organic and multicellular, and the origin of life is abiogenesis, which is normal for life of its type. The planet has an equatorial diameter of 10849.21 miles and an average diameter of 10810,77 miles. The polar diameter is 10734.29 miles. The oblateness of the superearth is 0.010593, not that much. The mass of the planet is 2.024\*10^25 kilograms, or three times the mass of the Earth. The density of the planet is 7.34 grams per cubic centimeter, with the insolation being 0.20996. The effective temperature on the superearth is 152.61 kelvin, though this is not the average temperature of the planet, with that being 264.28 kelvin, or 16.034 degrees Fahrenheit, or -8.87 degrees Celsius, a cold world. The Earth similarity of the superearth is 0.886, with the albedo being 0.56743. The rotational period of the planet is 11 hours, 38 minutes, and 00.92 seconds, with the solar day being 11 hours, 36 minutes, and 57.94 seconds. The axial tilt of the planet to the orbit is 103\*49’44.08". The gravity on the equator is 17.543 meters per second, with the average gravity being 17.826 meters per second. The gravity on the poles is 18.081 meters per second. The circular velocity of the planet is 27905.32 miles per hour, with the escape velocity being 39464.09 miles per hour.

The planet is one of the oldest in the galaxy, with an age of 12.297 billion years in age. The tidal heating of the planet is 1.6457\*10^9 billion watts.The internal structure of the superearth is 65% percent on the Silicate mantle, with ie being twice the mass of the Earth, with the rest of the planet being metallic core, or 35% of the planet. The height of the atmosphere is 23.32 miles, with the tropopause height being 43612.04 feet. The height of the homogeneous atmosphere being 15061.95 feet, with the atmospheric pressure being 34.4 atm. The air density of the planet is 42.902 kilograms per cubic meter. The speed of sound on this world is 736.30 miles per hour, with the exosphere temperature being 1034.9 kelvin. The greenhouse temperature on this world is 111.6 kelvin, with the average molar mass of the atmosphere being 28.957. The mass of the atmosphere on this world is 35.633 earth’s atmosphere. For atmospheric composition, Nitrogen comes in first with it being 67.5%, with Oxygen coming in second with it being 31.9% of the atmosphere.  In third place comes water vapor, with it being 0.29%, and carbon dioxide coming in 4th place at 0.283% of the atmosphere. The maximum depth of the oceans is 7432.52 feet, with the average molar mass being 18.020. The density of the oceans is 1.0001 grams per cubic centimeter, with the average temperature in the oceans being 264.28 kelvin.

 The oceanic pressure of the planet is 34.4 atm, and the bottom pressure being 433 atm.  The planet orbits an orange dwarf star with a spectrum of K6.5, and is the 6th planet away from its parent star. The orbital period of the planet is close to that of the Earth’s, with it having a year of 321.660 days. The influence sphere for moons around the planet is 1117631 miles, with a Roche limit of 8855 miles. The inclination is 1\*42’38.02", with the eccentricity being 0.129. The superearth is on the more drier side of things with land making up more then 85% of the surface, with the majority of this landmass being dry tundra and shrubed lowlands. The coastal regions are more like that of Patagonia, less drier due to it being right next to an ocean, The terrestrial civilization of this planet inhabits close to the coasts and has invested into the terraforming of the inland areas. Towards the southeast of the planet the marshlands here have dried into deserts with the Ceyrailians using this region to mine out sand.  The internal lands are not entirely dry with 2 large boreal forests located here, though these are not habitable, cold, and they exist around the water sources there and nothing else.  Some of it was terraformed as well as you can tell from the lighter shade of green around the boreal forests.

### Moons

 Mass
 Orbital period

### Solar system

Ceyrail exists as the 6th planet in its home system, it orbits an orange dwarf star along with 8 other planets. Ceyrail exists between two large gas giants, a superjupiter and a regular jupiter. For this star system we are going to use the first superjupiter as the dividing line between the inner and outer star system. The inner system is composed of 3 gaseous worlds, one hot subneptunee, and 2 warm neptunes with only one rocky world, a hot arid earth. The inner system and the out system make this star system a gaseous oriented system, (meaning it has more gaseous worlds then rocky ones). The outer system is composed of one cool superjupiter, one cool jupiter, and one frigid jupiter. Ceyrail and another rocky world exist here. An interesting property of this part of the system is that Ceyrail is a temperate world between two cool worlds, implying that the world might either be tidally heated by these worlds, or has an eccentric orbit. Tidal heating might be the winner of the two options as the orbit does not bring it close enough to its parent star for it to be in between the superjupiter and warm neptune where a “temperate” zone might be. The planet could also have more of a greenhouse effect causing it to be temperate in an area it would naturally be a cool world. The star system also seems to have an asteroid belt with the second planet existing inside of it.

The inner system.The outer system (Ceyrail's orbit is marked in red)The 5th planet, the superjupiter with its rings in all of their glory.The "Belt Planet" of the system, a Hot arid world.The Solar system chart.