Aqua

(*The planet's name is something that just came to mind when I first saw it. Also for some reason I did not name one of the islands on the map.*)

## Discovery Information

### Discoverer

GAIA EXPEDITIONS (2004)Named by Garry Liam (2006)

## Additional Information

### Life

Organic multicellular (marine, terrestrial)

## Aqua's information

This planet is a temperate marine superearth that has been discovered to have life, it is organic multicellular terrestrial and marine, with marine beating out the terrestrial by a long shot considering the size of the one ocean on this world, with there being only one “continent”, it's more of a large island the size of southeastern China. The land mass also seems to be also something similar to that of Northern Europe and Scandinavia. That landmass also is made of hundreds of small islands and islets, so the landmass might be a mountain range that is high enough that it's just above the sea level of the superearth, with these mountains resembling more of a swamp/marshland. This landmass is not the only place that humanity would settle in, with multiple small volcanic islands spotted around it. In the future the landmass will rise more above sea level with it becoming a unified landmass with large wide plains and the previous hills have now become medium sized mountains.This implies that over time the oceans will get smaller and the landmass will get larger with it being projected that 30% of the planet will be land and 70% ocean.

The large ocean that covers the vast majority of the planet is where the vast majority of the people on this world live, a culture of fishermen and sailors has been built up on the planet. Cities have been built up in these oceans though above the oceans as the maintenance of an underwater city is more than building one on an artificial island. Boatbuilding on this world is different on this world as the limited available wood on the planet was not that much, with metal being the main building material for the entire planet, not just boats.  The equatorial diameter of the planet is 9750.11 miles, with an average diameter being 9718.05 miles. The polar diameter is 0654.23 miles, with the oblateness being 0.0098332. The mass of the planet is 1.4017\*10^25 kilograms, or 2.347 M⨁, twice that of the Earth’s mass. The density of the planet is 6.9981 grams per cubic centimeter, with the insolation being 0.85191. The effective temperature on this world is 219.95 kelvin, or -53.2 degrees Celsius. Though the average temperature being 291.66 kelvin, around 65.318 degrees fahrenheit, or 18.51 degrees celsius. The earth similarity of the planet is 0.915. The albedo of the planet is 0.54. The rotational period of the superearth is 12 hours, 21 minutes, and 48.09 seconds, with the solar day being 12 hours, 22 minutes, and 45.72 seconds. The axial tilt to the orbit is 71\*41’24.80”.

The gravity of this planet is 15.278 meters per second, with the gravity on the equator being 15.055 meters per second, and the gravity on the poles being 15.480 meters per second. The circular velocity of the superearth is 24490.37 miles per hour, with the escape velocity being 34634.61 miles per hour. The planet has an age of 6.785 billion years, a planet slightly older than the Earth. The tidal heating of the planet is 4.492\*10^7 wats, or 1.0774 P⨁. The internal structure of the planet has no hydrogen, it has no helium, and there is no water/icy envelope. The Silicate mantle composes 63.7% of the planet or 1.4953 M⨁, with Metallic core being 36.3%, or 0.8517 M⨁. The atmosphere of the planet has a height of 31.75 miles, with the tropopause height being 48319.22 feet. The height of the homogeneous atmosphere is 18323.74 feet, with the atmospheric pressure being 14.8 atm. The air density of the planet is 17.732 kilograms per cubic meter, with the speed of sound on this planet is 752.03 miles per hour. The exosphere temperature is 1386.7 kelvin, with the greenhouse effect being 71.683 kelvin. The average molar mass is 28.628, with the mass of the atmosphere being 14.47 earth atmospheres. Nitrogen is 64.2% of the atmosphere , with oxygen being 27.9% of the atmosphere. Water vapor comes in at 5.59% of the atmosphere, with carbon dioxide being 2.33%, an unusually high amount for a planet of this type.

### Moons

 Diameter
 Orbital period

### Solar system

Aqua is part of a 9 planet system, with it being the 5th planet in that star system. To divide the star system, we are going to treat the 6th planet, **Lagei**, which is a cold minineptune. Aqua is the largest rocky world in its star system. It orbits a yellow subgiant, a G7.3, with a mass of 0.9837 M⨀. Aqua is part of the inner system, with the inner star system’s planets getting larger in size as they get further out. Aqua is on its side compared to the rest of the star system, and this might be due to it have collided with another planet in the distant past (4 - 3 billion years ago), this planet having a mass estimated to be between 1.0 M⨁ - 0.5 M⨁.  Aqua is larger than a temperate minineptune, in its star system. There are 2 temperate worlds in this star system. The first 3 planets in this star system are hot arid earths that are all tidally locked. Aqua is around the center of the system in terms of order.

The system chart with the star included.The "local" system chart for Aqua without the star.The first planet a hot arid earth.The 2nd planet, another hot arid earthThe thrid planet, the thrid hot arid earth.The 4th planet, a temperate minineptune with its largest moon.The 5th planet, Aqua. The planet was named after its atmosphere color.The 6th planet, a cold minineptune with its only moon in the background.The 7th planet, a cold arid aquaria.The 8th planet, a frigid minijupiter.The final 9th planet, a frigid arid aquaria.The outer system view, with Aqua's orbit marked in red.The inner system, with Aqua's orbit also marked.The main star of Aqua's system.