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MCA717: red dwarf star with 2 planets

  MCA717.1  
MCA717.2
 

Solar system 'MCA717' comprises the star 'MCA717' and the retinue of celestial objects gravitationally bound to it: 2 planets and their 18 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCA717', a red dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. MCA717 is located more than 2819 lightyears from the center of the galaxy.

MCA717.1, the first planet in this system, may feature life forms. Its average temperature is 342K (69C) and it's atmosphere contains 14% of oxygen. One year on MCA717.1 lasts 254 days, one day lasts 5 hours. It's diameter is 16552 km, 1.2 times the diameter of the Earth.

MCA717.2, the second planet in this system, may feature life forms. Its average temperature is 304K (31C) and it's atmosphere contains 5% of oxygen. One year on MCA717.2 lasts 467 days, one day lasts 14 hours. It's diameter is 8860 km, 0.6 times the diameter of the Earth.

This solar system comprises 2 planets

MCA717.1 is a large terrestrial planet (8276 km radius) which orbits its star in 254 Earth days, one day on MCA717.1 lasts 5 Earth hours. Its average temperature is 342 K (69 C), its atmosphere mainly consists of nitrogen, oxygen and it has 18 moons.
MCA717.2 is a small terrestrial planet (4430 km radius) which orbits its star in 467 Earth days, one day on MCA717.2 lasts 14 Earth hours. Its average temperature is 304 K (31 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
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Planetary Orbits

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Planetary Statistics

planet:MCA717.1MCA717.2
distance from star:54*106 km81*106 km
radius:8276 km4430 km
mass:4534*1021 kg695*1021 kg
surface gravity: 4.41 m/s2
0.45 Earths
2.36 m/s2
0.24 Earths
escape velocity:8.551 km/s4.576 km/s
year: 1219 MCA717.1 days
254 Earth days
800 MCA717.2 days
467 Earth days
day:5 hrs14 hrs
axial tilt:295°30°
temperature:342 K
69 C
304 K
31 C
atmosphere:1% H2
1% He
79% N2
14% O2
5% CO2
0% other
86% N2
5% O2
9% CO2
0% other
moons:180
rings:06

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