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MJJ449: red dwarf star with 4 planets

 
MJJ449.1
 
MJJ449.2
 
MJJ449.3
 
MJJ449.4
 

Solar system 'MJJ449' comprises the star 'MJJ449' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 194 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MJJ449', a red dwarf class star that contains about 99.61% of the system's known mass and dominates it gravitationally. MJJ449 is located more than 2611 lightyears from the center of the galaxy.

MJJ449.2, the second planet in this system, may feature life forms. Its average temperature is 326K (53C) and it's atmosphere contains 41% of oxygen. One year on MJJ449.2 lasts 404 days, one day lasts 6 hours. It's diameter is 20372 km, 1.5 times the diameter of the Earth.

This solar system comprises 4 planets

MJJ449.1 is a medium terrestrial planet (5645 km radius) which orbits its star in 93 Earth days, one day on MJJ449.1 lasts 11 Earth hours. Its average temperature is 1152 K (879 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 0 moons.
MJJ449.2 is a very large terrestrial planet (10186 km radius) which orbits its star in 404 Earth days, one day on MJJ449.2 lasts 6 Earth hours. Its average temperature is 326 K (53 C), its atmosphere mainly consists of nitrogen, oxygen and it has 17 moons.
MJJ449.3 is a large gas giant (68602 km radius) which orbits its star in 22438 Earth days, one day on MJJ449.3 lasts 4 Earth hours. Its average temperature is 1229 K (956 C), its atmosphere mainly consists of hydrogen and it has 110 moons.
MJJ449.4 is a large gas giant (42855 km radius) which orbits its star in 97150 Earth days, one day on MJJ449.4 lasts 4 Earth hours. Its average temperature is 1370 K (1097 C), its atmosphere mainly consists of hydrogen, helium and it has 67 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MJJ449.1MJJ449.2MJJ449.3MJJ449.4
distance from star:27*106 km74*106 km1081*106 km2872*106 km
radius:5645 km10186 km68602 km42855 km
mass:1439*1021 kg8454*1021 kg2582856*1021 kg629643*1021 kg
surface gravity: 3.01 m/s2
0.30 Earths
5.43 m/s2
0.55 Earths
36.6 m/s2
3.74 Earths
22.8 m/s2
2.33 Earths
escape velocity:5.833 km/s10.52 km/s70.89 km/s44.28 km/s
year: 202 MJJ449.1 days
93 Earth days
1616 MJJ449.2 days
404 Earth days
134628 MJJ449.3 days
22438 Earth days
582900 MJJ449.4 days
97150 Earth days
day:11 hrs6 hrs4 hrs4 hrs
axial tilt:28°30°
temperature:1152 K
879 C
326 K
53 C
1229 K
956 C
1370 K
1097 C
atmosphere:71% N2
2% O2
27% CO2
0% other
1% He
58% N2
41% O2
0% other
99% H2
1% He
0% other
78% H2
22% He
0% other
moons:01711067
rings:65810

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