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NGA808: red supergiant star with 4 planets

 
NGA808.1
 
NGA808.2
 
NGA808.3
  NGA808.4  

Solar system 'NGA808' is a dual star system that comprises the stars 'NGA808.A' and 'NGA808.B' and the retinue of celestial objects gravitationally bound to them: 4 planets and their 415 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'NGA808.A' and 'NGA808.B' that dominate it gravitationally. 'NGA808.A' is a red supergiant class star that contains about 89% of the system's known mass, 'NGA808.B' is a red giant class star that contains about 10% of the system's known mass.

System 'NGA808' is located more than 4059 lightyears from the center of the galaxy.

This solar system comprises 4 planets

NGA808.1 is a very large terrestrial planet (10285 km radius) which orbits its star in 855 Earth days, one day on NGA808.1 lasts 6 Earth hours. Its average temperature is 1775 K (1502 C), its atmosphere mainly consists of hydrogen and it has 76 moons.
NGA808.2 is a large gas giant (62236 km radius) which orbits its star in 4397 Earth days, one day on NGA808.2 lasts 4 Earth hours. Its average temperature is 1804 K (1531 C), its atmosphere mainly consists of hydrogen and it has 163 moons.
NGA808.3 is a large gas giant (44038 km radius) which orbits its star in 31850 Earth days, one day on NGA808.3 lasts 4 Earth hours. Its average temperature is 1726 K (1453 C), its atmosphere mainly consists of hydrogen, helium and it has 86 moons.
NGA808.4 is a huge terrestrial planet (14715 km radius) which orbits its star in 58513 Earth days, one day on NGA808.4 lasts 5 Earth hours. Its average temperature is 1215 K (942 C), its atmosphere mainly consists of hydrogen, helium and it has 90 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:NGA808.1NGA808.2NGA808.3NGA808.4
distance from star:122*106 km364*106 km1365*106 km2048*106 km
radius:10285 km62236 km44038 km14715 km
mass:8703*1021 kg1928479*1021 kg683239*1021 kg25490*1021 kg
surface gravity: 5.49 m/s2
0.56 Earths
33.2 m/s2
3.39 Earths
23.5 m/s2
2.40 Earths
7.85 m/s2
0.80 Earths
escape velocity:10.62 km/s64.31 km/s45.50 km/s15.20 km/s
year: 3420 NGA808.1 days
855 Earth days
26382 NGA808.2 days
4397 Earth days
191100 NGA808.3 days
31850 Earth days
280862 NGA808.4 days
58513 Earth days
day:6 hrs4 hrs4 hrs5 hrs
axial tilt:
temperature:1775 K
1502 C
1804 K
1531 C
1726 K
1453 C
1215 K
942 C
atmosphere:92% H2
8% He
0% other
95% H2
5% He
0% other
83% H2
17% He
0% other
84% H2
16% He
0% other
moons:761638690
rings:2410180

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