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MDC308: red dwarf star with 4 planets

  MDC308.1   MDC308.2  
MDC308.3
 
MDC308.4
 

Solar system 'MDC308' comprises the star 'MDC308' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 154 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MDC308', a red dwarf class star that contains about 99.56% of the system's known mass and dominates it gravitationally. MDC308 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 4 planets

MDC308.1 is a very small terrestrial planet (2021 km radius) which orbits its star in 2 Earth days, one day on MDC308.1 lasts 65 Earth hours. Its average temperature is 1540 K (1267 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MDC308.2 is a small terrestrial planet (4774 km radius) which orbits its star in 205 Earth days, one day on MDC308.2 lasts 14 Earth hours. Its average temperature is 566 K (293 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
MDC308.3 is a large gas giant (59923 km radius) which orbits its star in 30110 Earth days, one day on MDC308.3 lasts 4 Earth hours. Its average temperature is 1240 K (967 C), its atmosphere mainly consists of hydrogen and it has 48 moons.
MDC308.4 is a large gas giant (47207 km radius) which orbits its star in 55316 Earth days, one day on MDC308.4 lasts 4 Earth hours. Its average temperature is 1544 K (1271 C), its atmosphere mainly consists of hydrogen and it has 105 moons.
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Planetary Statistics

planet:MDC308.1MDC308.2MDC308.3MDC308.4
distance from star:2*106 km47*106 km1315*106 km1972*106 km
radius:2021 km4774 km59923 km47207 km
mass:66*1021 kg870*1021 kg1721355*1021 kg841606*1021 kg
surface gravity: 1.07 m/s2
0.10 Earths
2.54 m/s2
0.25 Earths
31.9 m/s2
3.26 Earths
25.2 m/s2
2.57 Earths
escape velocity:2.087 km/s4.932 km/s61.92 km/s48.78 km/s
year: 0 MDC308.1 days
2 Earth days
351 MDC308.2 days
205 Earth days
180660 MDC308.3 days
30110 Earth days
331896 MDC308.4 days
55316 Earth days
day:65 hrs14 hrs4 hrs4 hrs
axial tilt:13°18°
temperature:1540 K
1267 C
566 K
293 C
1240 K
967 C
1544 K
1271 C
atmosphere:83% N2
7% O2
10% CO2
0% other
4% H2
2% He
67% N2
27% O2
0% other
91% H2
9% He
0% other
96% H2
4% He
0% other
moons:0148105
rings:00161

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