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MCA673: yellow dwarf star with 4 planets

  MCA673.1   MCA673.2   MCA673.3   MCA673.4  

Solar system 'MCA673' comprises the star 'MCA673' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 240 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCA673', a yellow dwarf class star that contains about 99.88% of the system's known mass and dominates it gravitationally. MCA673 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 4 planets

MCA673.1 is a very large terrestrial planet (10852 km radius) which orbits its star in 543 Earth days, one day on MCA673.1 lasts 6 Earth hours. Its average temperature is 182 K (-91 C), its atmosphere mainly consists of nitrogen, oxygen and it has 19 moons.
MCA673.2 is a very large terrestrial planet (11227 km radius) which orbits its star in 1184 Earth days, one day on MCA673.2 lasts 5 Earth hours. Its average temperature is 129 K (-144 C), its atmosphere mainly consists of nitrogen, oxygen and it has 26 moons.
MCA673.3 is a large gas giant (58093 km radius) which orbits its star in 47093 Earth days, one day on MCA673.3 lasts 4 Earth hours. Its average temperature is 1051 K (778 C), its atmosphere mainly consists of hydrogen, helium and it has 94 moons.
MCA673.4 is a large terrestrial planet (8736 km radius) which orbits its star in 86516 Earth days, one day on MCA673.4 lasts 7 Earth hours. Its average temperature is 1998 K (1725 C), its atmosphere mainly consists of hydrogen and it has 101 moons.
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Planetary Orbits

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Planetary Statistics

planet:MCA673.1MCA673.2MCA673.3MCA673.4
distance from star:90*106 km152*106 km1772*106 km2658*106 km
radius:10852 km11227 km58093 km8736 km
mass:10223*1021 kg11320*1021 kg1568416*1021 kg5333*1021 kg
surface gravity: 5.79 m/s2
0.59 Earths
5.99 m/s2
0.61 Earths
31.0 m/s2
3.16 Earths
4.66 m/s2
0.47 Earths
escape velocity:11.21 km/s11.60 km/s60.03 km/s9.027 km/s
year: 2172 MCA673.1 days
543 Earth days
5683 MCA673.2 days
1184 Earth days
282558 MCA673.3 days
47093 Earth days
296626 MCA673.4 days
86516 Earth days
day:6 hrs5 hrs4 hrs7 hrs
axial tilt:11°21°
temperature:182 K
-91 C
129 K
-144 C
1051 K
778 C
1998 K
1725 C
atmosphere:52% N2
47% O2
1% CO2
0% other
62% N2
38% O2
0% other
79% H2
21% He
0% other
97% H2
3% He
0% other
moons:192694101
rings:0000

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