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MCG518: yellow dwarf star with 4 planets

  MCG518.1   MCG518.2  
MCG518.3
 
MCG518.4
 

Solar system 'MCG518' comprises the star 'MCG518' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 344 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCG518', a yellow dwarf class star that contains about 99.87% of the system's known mass and dominates it gravitationally. MCG518 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 4 planets

MCG518.1 is a small terrestrial planet (3720 km radius) which orbits its star in 9 Earth days, one day on MCG518.1 lasts 22 Earth hours. Its average temperature is 1008 K (735 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MCG518.2 is a very small terrestrial planet (2268 km radius) which orbits its star in 19 Earth days, one day on MCG518.2 lasts 52 Earth hours. Its average temperature is 1691 K (1418 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCG518.3 is a large gas giant (53963 km radius) which orbits its star in 8831 Earth days, one day on MCG518.3 lasts 4 Earth hours. Its average temperature is 1275 K (1002 C), its atmosphere mainly consists of hydrogen and it has 164 moons.
MCG518.4 is a large gas giant (60373 km radius) which orbits its star in 16225 Earth days, one day on MCG518.4 lasts 4 Earth hours. Its average temperature is 1127 K (854 C), its atmosphere mainly consists of hydrogen and it has 180 moons.
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Planetary Orbits

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Planetary Statistics

planet:MCG518.1MCG518.2MCG518.3MCG518.4
distance from star:6*106 km9*106 km580*106 km871*106 km
radius:3720 km2268 km53963 km60373 km
mass:411*1021 kg93*1021 kg1257124*1021 kg1760427*1021 kg
surface gravity: 1.98 m/s2
0.20 Earths
1.20 m/s2
0.12 Earths
28.8 m/s2
2.94 Earths
32.2 m/s2
3.29 Earths
escape velocity:3.840 km/s2.339 km/s55.76 km/s62.38 km/s
year: 9 MCG518.1 days
9 Earth days
8 MCG518.2 days
19 Earth days
52986 MCG518.3 days
8831 Earth days
97350 MCG518.4 days
16225 Earth days
day:22 hrs52 hrs4 hrs4 hrs
axial tilt:30°312°
temperature:1008 K
735 C
1691 K
1418 C
1275 K
1002 C
1127 K
854 C
atmosphere:85% N2
7% O2
8% CO2
0% other
88% N2
11% O2
1% CO2
0% other
94% H2
6% He
0% other
100% H2
0% other
moons:00164180
rings:001616

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