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NHJ654: red dwarf star with 4 planets

 
NHJ654.1
 
NHJ654.2
 
NHJ654.3
  NHJ654.4  

Solar system 'NHJ654' comprises the star 'NHJ654' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 426 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'NHJ654', a red dwarf class star that contains about 99.63% of the system's known mass and dominates it gravitationally. NHJ654 is located more than 3739 lightyears from the center of the galaxy.

This solar system comprises 4 planets

NHJ654.1 is a medium gas giant (30234 km radius) which orbits its star in 12028 Earth days, one day on NHJ654.1 lasts 4 Earth hours. Its average temperature is 1344 K (1071 C), its atmosphere mainly consists of hydrogen, helium and it has 174 moons.
NHJ654.2 is a medium gas giant (26603 km radius) which orbits its star in 22097 Earth days, one day on NHJ654.2 lasts 4 Earth hours. Its average temperature is 1576 K (1303 C), its atmosphere mainly consists of hydrogen and it has 94 moons.
NHJ654.3 is a large gas giant (60114 km radius) which orbits its star in 42973 Earth days, one day on NHJ654.3 lasts 4 Earth hours. Its average temperature is 1447 K (1174 C), its atmosphere mainly consists of hydrogen, helium and it has 131 moons.
NHJ654.4 is a small terrestrial planet (3330 km radius) which orbits its star in 56490 Earth days, one day on NHJ654.4 lasts 26 Earth hours. Its average temperature is 1689 K (1416 C), its atmosphere mainly consists of and it has 27 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:NHJ654.1NHJ654.2NHJ654.3NHJ654.4
distance from star:713*106 km1070*106 km1667*106 km2000*106 km
radius:30234 km26603 km60114 km3330 km
mass:221093*1021 kg150619*1021 kg1737868*1021 kg295*1021 kg
surface gravity: 16.1 m/s2
1.64 Earths
14.2 m/s2
1.45 Earths
32.0 m/s2
3.27 Earths
1.77 m/s2
0.18 Earths
escape velocity:31.24 km/s27.49 km/s62.12 km/s3.438 km/s
year: 72168 NHJ654.1 days
12028 Earth days
132582 NHJ654.2 days
22097 Earth days
257838 NHJ654.3 days
42973 Earth days
52144 NHJ654.4 days
56490 Earth days
day:4 hrs4 hrs4 hrs26 hrs
axial tilt:42°27°
temperature:1344 K
1071 C
1576 K
1303 C
1447 K
1174 C
1689 K
1416 C
atmosphere:89% H2
11% He
0% other
96% H2
4% He
0% other
81% H2
19% He
0% other
100% other
moons:1749413127
rings:1816130

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