Luminous is approximately 1.22AUs from Eupleides (third planet from Luminous).  The Luminous System consists of planets Proteus, Tethys, Eupleides, and Jeaus.  Luminous is a yellow G0 spectral type star, located about 40,000 light years away from Earth in the Milky Way Galaxy. It is approximately 5 billion years old, which makes it about 400 million years older than Earth’s sun. It is the richest source of electromagnetic energy (in the form of heat and light) in the system. It has a mass of 1.05 and a radius of 1.13 compared to earth’s sun.

Class

Temperature in degrees Kelvin

*AU, which stands for "astronomical unit", is a unit for measuring distance. One AU is the distance from the Sun's center to the Earth's center. It is equal to 149,600,000 km (93,000,000 miles).

Proteus

Proteus is a rocky planet and is very hot, since it is closest to Luminous.  Because Proteus is the closest planet to Luminous, a day lasts just about 4 Earth days.  Although the planet's gravity is too weak to retain any significant atmosphere, there is a tenuous layer of helium and hydrogen (probably captured from the solar wind), as well as sodium possibly from the surface rocks).

Tethys is also a rocky planet but has many volcanic mountains. Because of the volcanic activity on the planet, it is the hottest of all planets in the Luminous System.  Due to this, life cannot exist in this barren wasteland.  The atmosphere has high amounts of both Carbon Dioxide and Nitrogen. A Tethys day is equivalent to about 1.4 Earth days.

Tethys

Eupleides

Eupleides is the only planet of the Luminous System to have life forms.  It's surface is 80% water and 20% land,  making Eupleides unique among the planets that orbit Luminous.  Life thrives because our atmosphere is 75% N2, 23% O2, 1% CO2, and 1% other.  It is also the only planet that has a moon (Deimos) orbiting around it.  A day on Eupleides is slightly shorter than that of Earth's, lasting about 21 hours.

Deimos, Eupleides' Moon

Jeaus is another rocky planet in the Luminous System.  It is the farthest planet that orbits Luminous.  A Jeaus day is about as long as half an Earth day.  The atmosphere consists of Argon, Carbon Dioxide, and Nitrogen.  Due to the extreme distance from Luminous, it is believed that life cannot exist on this planet. 

Jeaus

Proteus orbit of Lumionous is equal to 92 Earth days

Tethys orbit of Luminous is equal to 261 Earth days

Eupledies orbit of Luminous is equal to 421 Earth days

Jeaus orbit of Luminous is equal to 670 Earth days