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MJJ472: red dwarf star with 7 planets

  MJJ472.1   MJJ472.2   MJJ472.3   MJJ472.4   MJJ472.5  
MJJ472.6
 
MJJ472.7
 

Solar system 'MJJ472' comprises the star 'MJJ472' and the retinue of celestial objects gravitationally bound to it: 7 planets and their 276 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MJJ472', a red dwarf class star that contains about 99.79% of the system's known mass and dominates it gravitationally. MJJ472 is located more than 2611 lightyears from the center of the galaxy.

This solar system comprises 7 planets

MJJ472.1 is a small terrestrial planet (3451 km radius) which orbits its star in 14 Earth days, one day on MJJ472.1 lasts 28 Earth hours. Its average temperature is 1606 K (1333 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MJJ472.2 is a very large terrestrial planet (10452 km radius) which orbits its star in 25 Earth days, one day on MJJ472.2 lasts 9 Earth hours. Its average temperature is 1428 K (1155 C), its atmosphere mainly consists of nitrogen, oxygen and it has 9 moons.
MJJ472.3 is a very small terrestrial planet (2704 km radius) which orbits its star in 65 Earth days, one day on MJJ472.3 lasts 41 Earth hours. Its average temperature is 1247 K (974 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MJJ472.4 is a medium terrestrial planet (5923 km radius) which orbits its star in 119 Earth days, one day on MJJ472.4 lasts 14 Earth hours. Its average temperature is 1479 K (1206 C), its atmosphere mainly consists of nitrogen, oxygen and it has 4 moons.
MJJ472.5 is a very small terrestrial planet (2910 km radius) which orbits its star in 220 Earth days, one day on MJJ472.5 lasts 36 Earth hours. Its average temperature is 1643 K (1370 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MJJ472.6 is a large gas giant (54462 km radius) which orbits its star in 19156 Earth days, one day on MJJ472.6 lasts 7 Earth hours. Its average temperature is 1937 K (1664 C), its atmosphere mainly consists of hydrogen and it has 87 moons.
MJJ472.7 is a medium gas giant (31036 km radius) which orbits its star in 47843 Earth days, one day on MJJ472.7 lasts 7 Earth hours. Its average temperature is 1904 K (1631 C), its atmosphere mainly consists of hydrogen and it has 176 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MJJ472.1MJJ472.2MJJ472.3MJJ472.4MJJ472.5
distance from star:7*106 km11*106 km22*106 km33*106 km49*106 km
radius:3451 km10452 km2704 km5923 km2910 km
mass:328*1021 kg9134*1021 kg158*1021 kg1662*1021 kg197*1021 kg
surface gravity: 1.83 m/s2
0.18 Earths
5.58 m/s2
0.57 Earths
1.44 m/s2
0.14 Earths
3.16 m/s2
0.32 Earths
1.55 m/s2
0.15 Earths
escape velocity:3.561 km/s10.80 km/s2.792 km/s6.120 km/s3.006 km/s
year: 12 MJJ472.1 days
14 Earth days
66 MJJ472.2 days
25 Earth days
38 MJJ472.3 days
65 Earth days
204 MJJ472.4 days
119 Earth days
146 MJJ472.5 days
220 Earth days
day:28 hrs9 hrs41 hrs14 hrs36 hrs
axial tilt:29°15°261°
temperature:1606 K
1333 C
1428 K
1155 C
1247 K
974 C
1479 K
1206 C
1643 K
1370 C
atmosphere:83% N2
8% O2
9% CO2
0% other
3% H2
1% He
72% N2
24% O2
0% other
90% N2
6% O2
4% CO2
0% other
4% H2
1% He
61% N2
34% O2
0% other
90% N2
10% O2
0% other
moons:09040
rings:00000

planet:MJJ472.6MJJ472.7
distance from star:972*106 km1791*106 km
radius:54462 km31036 km
mass:1292322*1021 kg239159*1021 kg
surface gravity: 29.0 m/s2
2.96 Earths
16.5 m/s2
1.68 Earths
escape velocity:56.28 km/s32.07 km/s
year: 65677 MJJ472.6 days
19156 Earth days
164033 MJJ472.7 days
47843 Earth days
day:7 hrs7 hrs
axial tilt:
temperature:1937 K
1664 C
1904 K
1631 C
atmosphere:94% H2
6% He
0% other
94% H2
6% He
0% other
moons:87176
rings:232

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