Note. I am going to go through this and perform actual calculations to make the orbital periods accurate, but I am just getting the basic feel of each planet down for right now. I'm aware the orbital periods are not 100% consistent with the orbital radius yet. Please ignore that inconsistency for now.

The Ixar System is the stellar system comprised of the star Verdai, the twelve planets orbiting it, and the other minor objects within its gravitational sphere of influence (primarily within its two asteroid belts and its shell cloud).

The planets of the Ixar System are grouped into four categories. The rocky planets, the liquid giant Larxenais, Eliar, the gas giants, and the ice giants.

There are seven rocky planets orbiting Verdai. Their orbits vary in radius from 2.8 light minutes to 14 light minutes.

Juliad is the closest planet to Verdai, orbiting it at a distance of only 2.8 light minutes. It completes its orbit in 68 days, and is tidally locked to Verdai. It is inhospitable to life, with a surface temperature in excess of 1000 degrees F on the sunny side. It has no atmosphere. It is 7% the mass of Mersia.

Therima is the next-closest planet to Verdai, orbiting it at a distance of 4.2 light minutes. It completes its orbit in 102 days. It is inhospitable to life, with a surface temperature of 600 degrees F. It has a very thin atmosphere, with a surface that is nearly perfectly black, reflecting less than 2% of light. Due to this, it was not discovered until 415 GD. It is 15% the mass of Mersia.

Folst is the third planet from Verdai, orbiting it at a distance of 6 light minutes. It completes its orbit in 150 days. It is inhospitable to life, with an atmosphere comprised entirely of helium and sulfur dioxide. Its atmospheric pressure is 0.7 atm at the surface. It has a surface temperature of 200 degrees F. It is 78% the mass of Mersia.

Unsatha is the fourth planet from Verdai, orbiting it at a distance of 8.3 light minutes. It completes its orbit in 320 days. It is hospitable to life, with an atmosphere comprised of 49% nitrogen, 35% oxygen, 10% neon, 2% water vapor, 2% argon, and 1% carbon dioxide and other trace gases. 54% of its surface is covered in water, and it experiences a similar intensity of weather to Mersia. It has an average surface temperature of 74 degrees F. It is known to have an abundance of plant life at its surface, with no detected animal life. It is expected to be colonized by 570 GD, about thirty years from now. It is the most well-studied planet after our own, with hundreds of unmanned missions to its surface, and one manned one-way mission in 520 GD. It is 104% the mass of Mersia, with a surface gravity of 9.9 m/s^2.

Mersia is the fifth planet from Verdai, orbiting it at a distance of 11.1 light minutes. It completes its orbit in 512 days. It is the basis of all known civilization in the Ixar system, home to sapes, dragons, and nature spirits. Its atmosphere is comprised of 67.52% nitrogen, 28.73% oxygen, 2.4% neon, 1% water vapor, and other trace gases. It has an average surface temperature of 55 degrees F.

Et is the primary moon of Mersia, which has a mass of 20% that of Mersia, resulting in significant tidal forces on Mersia's oceans, as well as significantly improved rotational stability. It completes an orbit exactly 16 times per year, or once per month. Its precise ratio to the standard mersian calendar is considered the strongest evidence for divine intervention in our planet's creation.

Ro is the second largest moon of Mersia, which has a mass of 13% that of Mersia. It, too, exhibits tidal forces on Mersia, but these are often dwarfed by those due to Et. Its orbital period is twice that of Et, completing an orbit once every two months, or 8 times per year. It is in strong orbital resonance with Lu, resulting in further increased orbital stability between the two moons.

Lu is the third and final moon of Mersia, which has a mass 7% that of Mersia. It, unlike Et and Ro, does not have a stable orbit. It is on a slowly spiraling collision course with the planet's surface. It is estimated to strike the planet's surface in 16,666 years. However, there is no reason to fear. We have known that this is the planet's fate for thousands of years. We will relocate to Unsatha long before this happens.

Rewilt is the sixth planet from Verdai, orbiting it at a distance of 16.6 light minutes. It is inhospitable to life, and has a thin atmosphere comprised mostly of carbon dioxide and oxygen. It completes its orbit in 780 days. It has an average surface temperature of 25 degrees F. Rewilt has a mass 30% that of Mersia.

The kroloid belt is the inner of the two known asteroid belts in the ixar system. It orbits at an average of 28 light minutes from Verdai. It is comprised of roughly 1.6 million asteroids greater than a kilometer in width, and potentially many millions of smaller asteroids. The dwarf planet Pol is within the kroloid belt, which has a mass equal to 0.8% that of Mersia and no known atmosphere.

Larxenais is the seventh planet from Verdai, orbiting it at a distance of 51.5 light minutes. Uniquely among planets and known exoplanets, this is a toroidal planet. It completes its orbit in 4712 days. It is the first of the two liquid giants, being 90% water by mass with an atmosphere comprised mostly of hydrogen and helium. Its average rotational speed is estimated to one revolution every minute. Its mass is six times that of Mersia, and its average temperature is 130 degrees fahrenheit. There is a massive sapphire at the gravitational centerpoint of the torus. The mass of this gem is 20% that of Mersia, and it rotates at a speed of 154 rpm in the opposite direction of the toroid of water. All electronics aboard the three unmanned missions to this planet ceased functioning before a clear image could be resolved of the planet, indicating extreme electrical fields around this planet. The structure of this planet should not be physically possible, indicating divine interference in its apparent stability. Its axis of rotation is directly perpendicular to its axis of revolution, pointing at Verdai throughout its orbit. The presence of life on (or in) this planet cannot be confirmed or refuted.

Eliar is the eighth planet from Verdai, orbiting it at a distance of 88.8 light minutes. It is a brown dwarf with a mass 18,888 times that of Mersia, heavy enough to have initiated fusion of deuterium in its core. Consequently, it is the brightest object in the night sky apart from Et and Ro, even brighter than Lu, providing enough light to cast shadows when Et is a crescent or less, and when Ro is a quarter or less.

Loriwan is the primary moon of Eliar. It is comprised of a sea of magma with an atmosphere of sulfur dioxide and carbon monoxide. It orbits Eliar quite closely, completing an orbit once every 40.3 days. Loriwan has a mass 17 times that of Mersia. It would be the heaviest rocky planet in the ixar system if it were not orbiting Eliar rather than Verdai. It is hypothesized that Loriwan is a captured moon which was originally a planet.

Bax is the ninth planet from Verdai, orbiting it at a distance of 112 light minutes. It is a gaseous planet with a mass 411 times that of Mersia, comprised primarily of hydrogen and helium. It has a spectacular ring system which extends out to three times its own radius. Its ring system is comprised primarily of captured objects from the adjacent petroid belt. Bax has at least 39 moons. Notable among these are the Baxian Quintet, five moons which are large enough that they would be considered planets if they orbited Verdai. Due to the relative proximity of Bax to Eliar, for about 15% of its orbit, Bax receives more light and heat from Eliar than from Verdai. This fact extends to its many moons.

Felim is the largest of Bax's moons, with a mass 2.3 times that of Mersia. It is a rocky body with a significant amount of water ice on its surface. It is, like all Baxian moons, tidally locked. It has a moderately thick atmosphere comprised of methane, oxygen, and hydrogen.

Gar is the second-largest of Bax's moons, with a mass 0.7 times that of Mersia. It is a primarily icy body with much of its mass comprised of water, with a potentially liquid ocean under its surface. No life has been detected on this moon, though a series of unmanned missions with the intent of placing landers on its surface will discover more information shortly.

Mut is the third-largest of Bax's moons, with a mass 0.6 times that of Mersia. It is a tectonically active rocky body with a reddish orange appearance, due to its high iron content. It is estimated that at any given time, at least five separate quakes are occurring somewhere along its many fault lines.

Yoph is the fourth-largest of Bax's moons, with a mass 0.57 times that of Mersia. It is notable for having the highest wind speeds of any body in the Ixar system, with an average wind speed of 3000 mph, and recorded gusts of over 10,000 mph. The exact composition of these gases has been difficult to pinpoint due to the extreme speed of the gases and the thickness of Yoph's atmosphere, but what few readings have been taken suggest a primarily helium and oxygen atmosphere. Something beyond our current understanding dwells within this planet. One unmanned mission was attempted to this moon, but something shot out from the planet's surface and destroyed the probe. No further missions were attempted and none are planned. Such an entity could potentially destroy Mersia were it to be led here.

Vayr is the fifth largest of Bax's moons and the smallest of the Baxian Quintet, with a mass 0.52 times that of Mersia. It is a rocky planet with a high iron content in its core, resulting in an unusually small diameter for its mass, and giving it a surface gravity of 7.8 m/s^2. The planet has unusually complex geology, with an intricate system of caves permeating its crust. It has a relatively thick atmosphere of 72% nitrogen, 26% oxygen, 1% argon, and 1% trace gases including carbon dioxide, water vapor, and hydrogen. It is close enough to Bax that it receives a significant amount of radiation from its surface at all times, resulting in an average surface temperature of 63 F. Unmanned explorations of Vayr have revealed the presence of both Uranium and Thorium ores. It is a candidate for manned exploration due to its breathable atmosphere, relatively stable temperature, and availability of the caves for shelter when Bax approaches Eliar. It may be possible to establish a permanent colony here, using the relatively abundant uranium and thorium to generate electricity for the colony in place of stellar power. Unsatha remains a better candidate for establishing a second civilization, but it