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MCG489: yellow dwarf star with 3 planets

  MCG489.1   MCG489.2   MCG489.3  

Solar system 'MCG489' is a dual star system that comprises the stars 'MCG489.A' and 'MCG489.B' and the retinue of celestial objects gravitationally bound to them: 3 planets and their 5 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'MCG489.A' and 'MCG489.B' that dominate it gravitationally. 'MCG489.A' is a yellow dwarf class star that contains about 99% of the system's known mass, 'MCG489.B' is a brown dwarf class star that contains about 0% of the system's known mass.

System 'MCG489' is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 3 planets

MCG489.1 is a large terrestrial planet (8165 km radius) which orbits its star in 68 Earth days, one day on MCG489.1 lasts 6 Earth hours. Its average temperature is 1707 K (1434 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
MCG489.2 is a very large terrestrial planet (9519 km radius) which orbits its star in 124 Earth days, one day on MCG489.2 lasts 5 Earth hours. Its average temperature is 1518 K (1245 C), its atmosphere mainly consists of nitrogen, oxygen and it has 4 moons.
MCG489.3 is a small terrestrial planet (3767 km radius) which orbits its star in 212 Earth days, one day on MCG489.3 lasts 20 Earth hours. Its average temperature is 1462 K (1189 C), its atmosphere mainly consists of and it has 0 moons.
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Planetary Orbits

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Planetary Statistics

planet:MCG489.1MCG489.2MCG489.3
distance from star:22*106 km33*106 km48*106 km
radius:8165 km9519 km3767 km
mass:4354*1021 kg6900*1021 kg427*1021 kg
surface gravity: 4.35 m/s2
0.44 Earths
5.08 m/s2
0.51 Earths
2.00 m/s2
0.20 Earths
escape velocity:8.436 km/s9.836 km/s3.889 km/s
year: 272 MCG489.1 days
68 Earth days
595 MCG489.2 days
124 Earth days
254 MCG489.3 days
212 Earth days
day:6 hrs5 hrs20 hrs
axial tilt:14°21°15°
temperature:1707 K
1434 C
1518 K
1245 C
1462 K
1189 C
atmosphere:1% H2
1% He
49% N2
49% O2
0% other
77% N2
20% O2
3% CO2
0% other
100% other
moons:140
rings:000

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