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NHB847: red dwarf star with 3 planets

  NHB847.1   NHB847.2   NHB847.3  

Solar system 'NHB847' comprises the star 'NHB847' and the retinue of celestial objects gravitationally bound to it: 3 planets and their 179 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'NHB847', a red dwarf class star that contains about 99.98% of the system's known mass and dominates it gravitationally. NHB847 is located more than 3261 lightyears from the center of the galaxy.

This solar system comprises 3 planets

NHB847.1 is a large terrestrial planet (8372 km radius) which orbits its star in 422 Earth days, one day on NHB847.1 lasts 6 Earth hours. Its average temperature is 134 K (-139 C), its atmosphere mainly consists of nitrogen, oxygen and it has 7 moons.
NHB847.2 is a medium gas giant (25866 km radius) which orbits its star in 13304 Earth days, one day on NHB847.2 lasts 3 Earth hours. Its average temperature is 1353 K (1080 C), its atmosphere mainly consists of hydrogen, helium and it has 125 moons.
NHB847.3 is a medium terrestrial planet (6460 km radius) which orbits its star in 17489 Earth days, one day on NHB847.3 lasts 8 Earth hours. Its average temperature is 1126 K (853 C), its atmosphere mainly consists of and it has 47 moons.
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Planetary Statistics

planet:NHB847.1NHB847.2NHB847.3
distance from star:76*106 km763*106 km915*106 km
radius:8372 km25866 km6460 km
mass:4694*1021 kg138445*1021 kg2156*1021 kg
surface gravity: 4.46 m/s2
0.45 Earths
13.8 m/s2
1.41 Earths
3.44 m/s2
0.35 Earths
escape velocity:8.651 km/s26.72 km/s6.674 km/s
year: 1688 NHB847.1 days
422 Earth days
106432 NHB847.2 days
13304 Earth days
52467 NHB847.3 days
17489 Earth days
day:6 hrs3 hrs8 hrs
axial tilt:11°21°
temperature:134 K
-139 C
1353 K
1080 C
1126 K
853 C
atmosphere:83% N2
14% O2
3% CO2
0% other
76% H2
24% He
0% other
100% other
moons:712547
rings:000

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