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MJH688: red dwarf star with 5 planets

  MJH688.1  
MJH688.2
  MJH688.3  
MJH688.4
  MJH688.5  

Solar system 'MJH688' comprises the star 'MJH688' and the retinue of celestial objects gravitationally bound to it: 5 planets and their 211 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MJH688', a red dwarf class star that contains about 99.95% of the system's known mass and dominates it gravitationally. MJH688 is located more than 4905 lightyears from the center of the galaxy.

MJH688.1, the first planet in this system, may feature life forms. Its average temperature is 293K (20C) and it's atmosphere contains 19% of oxygen. One year on MJH688.1 lasts 229 days, one day lasts 11 hours. It's diameter is 12184 km, 0.9 times the diameter of the Earth.

MJH688.2, the second planet in this system, may feature life forms. Its average temperature is 260K (-13C) and it's atmosphere contains 46% of oxygen. One year on MJH688.2 lasts 422 days, one day lasts 39 hours. It's diameter is 5386 km, 0.4 times the diameter of the Earth.

This solar system comprises 5 planets

MJH688.1 is a medium terrestrial planet (6092 km radius) which orbits its star in 229 Earth days, one day on MJH688.1 lasts 11 Earth hours. Its average temperature is 293 K (20 C), its atmosphere mainly consists of nitrogen, oxygen and it has 7 moons.
MJH688.2 is a very small terrestrial planet (2693 km radius) which orbits its star in 422 Earth days, one day on MJH688.2 lasts 39 Earth hours. Its average temperature is 260 K (-13 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MJH688.3 is a very large terrestrial planet (9072 km radius) which orbits its star in 775 Earth days, one day on MJH688.3 lasts 8 Earth hours. Its average temperature is 173 K (-100 C), its atmosphere mainly consists of nitrogen, oxygen and it has 27 moons.
MJH688.4 is a medium gas giant (34741 km radius) which orbits its star in 37677 Earth days, one day on MJH688.4 lasts 5 Earth hours. Its average temperature is 1766 K (1493 C), its atmosphere mainly consists of hydrogen, helium and it has 143 moons.
MJH688.5 is a medium terrestrial planet (6905 km radius) which orbits its star in 49527 Earth days, one day on MJH688.5 lasts 10 Earth hours. Its average temperature is 1170 K (897 C), its atmosphere mainly consists of and it has 34 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MJH688.1MJH688.2MJH688.3MJH688.4MJH688.5
distance from star:50*106 km76*106 km114*106 km1527*106 km1832*106 km
radius:6092 km2693 km9072 km34741 km6905 km
mass:1808*1021 kg156*1021 kg5973*1021 kg335441*1021 kg2633*1021 kg
surface gravity: 3.25 m/s2
0.33 Earths
1.43 m/s2
0.14 Earths
4.84 m/s2
0.49 Earths
18.5 m/s2
1.89 Earths
3.68 m/s2
0.37 Earths
escape velocity:6.294 km/s2.780 km/s9.374 km/s35.90 km/s7.134 km/s
year: 499 MJH688.1 days
229 Earth days
259 MJH688.2 days
422 Earth days
2325 MJH688.3 days
775 Earth days
180849 MJH688.4 days
37677 Earth days
118864 MJH688.5 days
49527 Earth days
day:11 hrs39 hrs8 hrs5 hrs10 hrs
axial tilt:351°226°27°212°
temperature:293 K
20 C
260 K
-13 C
173 K
-100 C
1766 K
1493 C
1170 K
897 C
atmosphere:2% H2
1% He
74% N2
19% O2
4% CO2
0% other
54% N2
46% O2
0% other
82% N2
17% O2
1% CO2
0% other
84% H2
16% He
0% other
100% other
moons:702714334
rings:06040

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