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WHJ708: red dwarf star with 4 planets

  WHJ708.1   WHJ708.2   WHJ708.3  
WHJ708.4
 

Solar system 'WHJ708' comprises the star 'WHJ708' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 251 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'WHJ708', a red dwarf class star that contains about 99.51% of the system's known mass and dominates it gravitationally. WHJ708 is located more than 4704 lightyears from the center of the galaxy.

This solar system comprises 4 planets

WHJ708.1 is a very large terrestrial planet (9858 km radius) which orbits its star in 103 Earth days, one day on WHJ708.1 lasts 6 Earth hours. Its average temperature is 433 K (160 C), its atmosphere mainly consists of nitrogen and it has 15 moons.
WHJ708.2 is a small terrestrial planet (3065 km radius) which orbits its star in 189 Earth days, one day on WHJ708.2 lasts 30 Earth hours. Its average temperature is 385 K (112 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
WHJ708.3 is a medium gas giant (23855 km radius) which orbits its star in 4742 Earth days, one day on WHJ708.3 lasts 4 Earth hours. Its average temperature is 1032 K (759 C), its atmosphere mainly consists of hydrogen and it has 162 moons.
WHJ708.4 is a large gas giant (58880 km radius) which orbits its star in 86501 Earth days, one day on WHJ708.4 lasts 4 Earth hours. Its average temperature is 1744 K (1471 C), its atmosphere mainly consists of hydrogen, helium and it has 74 moons.
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Planetary Orbits

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Planetary Statistics

planet:WHJ708.1WHJ708.2WHJ708.3WHJ708.4
distance from star:29*106 km44*106 km383*106 km2658*106 km
radius:9858 km3065 km23855 km58880 km
mass:7664*1021 kg230*1021 kg108599*1021 kg1633027*1021 kg
surface gravity: 5.26 m/s2
0.53 Earths
1.63 m/s2
0.16 Earths
12.7 m/s2
1.29 Earths
31.4 m/s2
3.21 Earths
escape velocity:10.18 km/s3.164 km/s24.65 km/s60.84 km/s
year: 412 WHJ708.1 days
103 Earth days
151 WHJ708.2 days
189 Earth days
28452 WHJ708.3 days
4742 Earth days
519006 WHJ708.4 days
86501 Earth days
day:6 hrs30 hrs4 hrs4 hrs
axial tilt:241°10°
temperature:433 K
160 C
385 K
112 C
1032 K
759 C
1744 K
1471 C
atmosphere:89% N2
3% O2
8% CO2
0% other
89% N2
7% O2
4% CO2
0% other
96% H2
4% He
0% other
87% H2
13% He
0% other
moons:15016274
rings:00023

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