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MCD640: yellow dwarf star with 4 planets

  MCD640.1   MCD640.2   MCD640.3  
MCD640.4
 

Solar system 'MCD640' comprises the star 'MCD640' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 131 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCD640', a yellow dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. MCD640 is located more than 2819 lightyears from the center of the galaxy.

MCD640.3, the third planet in this system, may feature life forms. Its average temperature is 288K (15C) and it's atmosphere contains 47% of oxygen. One year on MCD640.3 lasts 929 days, one day lasts 6 hours. It's diameter is 22350 km, 1.7 times the diameter of the Earth.

This solar system comprises 4 planets

MCD640.1 is a very small terrestrial planet (2604 km radius) which orbits its star in 57 Earth days, one day on MCD640.1 lasts 40 Earth hours. Its average temperature is 1949 K (1676 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 0 moons.
MCD640.2 is a medium terrestrial planet (6522 km radius) which orbits its star in 260 Earth days, one day on MCD640.2 lasts 9 Earth hours. Its average temperature is 1049 K (776 C), its atmosphere mainly consists of nitrogen, oxygen and it has 5 moons.
MCD640.3 is a very large terrestrial planet (11175 km radius) which orbits its star in 929 Earth days, one day on MCD640.3 lasts 6 Earth hours. Its average temperature is 288 K (15 C), its atmosphere mainly consists of nitrogen, oxygen and it has 23 moons.
MCD640.4 is a medium gas giant (23312 km radius) which orbits its star in 6916 Earth days, one day on MCD640.4 lasts 4 Earth hours. Its average temperature is 1938 K (1665 C), its atmosphere mainly consists of hydrogen and it has 103 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MCD640.1MCD640.2MCD640.3MCD640.4
distance from star:20*106 km55*106 km129*106 km493*106 km
radius:2604 km6522 km11175 km23312 km
mass:141*1021 kg2219*1021 kg11164*1021 kg101351*1021 kg
surface gravity: 1.38 m/s2
0.14 Earths
3.48 m/s2
0.35 Earths
5.96 m/s2
0.60 Earths
12.4 m/s2
1.26 Earths
escape velocity:2.688 km/s6.739 km/s11.54 km/s24.09 km/s
year: 34 MCD640.1 days
57 Earth days
693 MCD640.2 days
260 Earth days
3716 MCD640.3 days
929 Earth days
41496 MCD640.4 days
6916 Earth days
day:40 hrs9 hrs6 hrs4 hrs
axial tilt:186°247°
temperature:1949 K
1676 C
1049 K
776 C
288 K
15 C
1938 K
1665 C
atmosphere:23% H2
3% He
28% N2
45% O2
1% CO2
0% other
6% H2
1% He
49% N2
42% O2
2% CO2
0% other
3% H2
2% He
47% N2
47% O2
1% CO2
0% other
95% H2
5% He
0% other
moons:0523103
rings:0002

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