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NDH815: red dwarf star with 5 planets

 
NDH815.1
  NDH815.2   NDH815.3   NDH815.4   NDH815.5  

Solar system 'NDH815' comprises the star 'NDH815' and the retinue of celestial objects gravitationally bound to it: 5 planets and their 170 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'NDH815', a red dwarf class star that contains about 99.95% of the system's known mass and dominates it gravitationally. NDH815 is located more than 2237 lightyears from the center of the galaxy.

NDH815.1, the first planet in this system, may feature life forms. Its average temperature is 274K (1C) and it's atmosphere contains 33% of oxygen. One year on NDH815.1 lasts 281 days, one day lasts 11 hours. It's diameter is 12286 km, 0.9 times the diameter of the Earth.

This solar system comprises 5 planets

NDH815.1 is a medium terrestrial planet (6143 km radius) which orbits its star in 281 Earth days, one day on NDH815.1 lasts 11 Earth hours. Its average temperature is 274 K (1 C), its atmosphere mainly consists of nitrogen, oxygen and it has 9 moons.
NDH815.2 is a very large terrestrial planet (9657 km radius) which orbits its star in 517 Earth days, one day on NDH815.2 lasts 7 Earth hours. Its average temperature is 243 K (-30 C), its atmosphere mainly consists of nitrogen, oxygen and it has 8 moons.
NDH815.3 is a small terrestrial planet (3110 km radius) which orbits its star in 950 Earth days, one day on NDH815.3 lasts 30 Earth hours. Its average temperature is 162 K (-111 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
NDH815.4 is a very large terrestrial planet (11675 km radius) which orbits its star in 2005 Earth days, one day on NDH815.4 lasts 6 Earth hours. Its average temperature is 80 K (-193 C), its atmosphere mainly consists of nitrogen, oxygen and it has 20 moons.
NDH815.5 is a medium gas giant (35669 km radius) which orbits its star in 52482 Earth days, one day on NDH815.5 lasts 5 Earth hours. Its average temperature is 1739 K (1466 C), its atmosphere mainly consists of hydrogen, helium and it has 133 moons.
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Planetary Statistics

planet:NDH815.1NDH815.2NDH815.3NDH815.4NDH815.5
distance from star:58*106 km87*106 km131*106 km216*106 km1905*106 km
radius:6143 km9657 km3110 km11675 km35669 km
mass:1854*1021 kg7204*1021 kg240*1021 kg12730*1021 kg363046*1021 kg
surface gravity: 3.27 m/s2
0.33 Earths
5.15 m/s2
0.52 Earths
1.65 m/s2
0.16 Earths
6.23 m/s2
0.63 Earths
19.0 m/s2
1.94 Earths
escape velocity:6.347 km/s9.978 km/s3.209 km/s12.06 km/s36.85 km/s
year: 613 NDH815.1 days
281 Earth days
1772 NDH815.2 days
517 Earth days
760 NDH815.3 days
950 Earth days
8020 NDH815.4 days
2005 Earth days
251913 NDH815.5 days
52482 Earth days
day:11 hrs7 hrs30 hrs6 hrs5 hrs
axial tilt:12°12°28°338°
temperature:274 K
1 C
243 K
-30 C
162 K
-111 C
80 K
-193 C
1739 K
1466 C
atmosphere:2% He
63% N2
33% O2
2% CO2
0% other
3% H2
1% He
53% N2
43% O2
0% other
85% N2
7% O2
8% CO2
0% other
1% H2
1% He
76% N2
20% O2
2% CO2
0% other
77% H2
23% He
0% other
moons:98020133
rings:60000

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