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NGJ218: red dwarf star with 8 planets

  NGJ218.1   NGJ218.2   NGJ218.3  
NGJ218.4
 
NGJ218.5
 
NGJ218.6
  NGJ218.7   NGJ218.8  

Solar system 'NGJ218' comprises the star 'NGJ218' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 603 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'NGJ218', a red dwarf class star that contains about 99.38% of the system's known mass and dominates it gravitationally. NGJ218 is located more than 3373 lightyears from the center of the galaxy.

This solar system comprises 8 planets

NGJ218.1 is a medium terrestrial planet (6066 km radius) which orbits its star in 163 Earth days, one day on NGJ218.1 lasts 14 Earth hours. Its average temperature is 597 K (324 C), its atmosphere mainly consists of nitrogen, oxygen and it has 5 moons.
NGJ218.2 is a very large terrestrial planet (10540 km radius) which orbits its star in 863 Earth days, one day on NGJ218.2 lasts 10 Earth hours. Its average temperature is 130 K (-143 C), its atmosphere mainly consists of nitrogen, oxygen and it has 41 moons.
NGJ218.3 is a medium terrestrial planet (5167 km radius) which orbits its star in 1586 Earth days, one day on NGJ218.3 lasts 17 Earth hours. Its average temperature is 86 K (-187 C), its atmosphere mainly consists of nitrogen, oxygen and it has 12 moons.
NGJ218.4 is a large gas giant (59450 km radius) which orbits its star in 7947 Earth days, one day on NGJ218.4 lasts 8 Earth hours. Its average temperature is 1381 K (1108 C), its atmosphere mainly consists of hydrogen and it has 170 moons.
NGJ218.5 is a large gas giant (77475 km radius) which orbits its star in 96709 Earth days, one day on NGJ218.5 lasts 8 Earth hours. Its average temperature is 1329 K (1056 C), its atmosphere mainly consists of hydrogen, helium and it has 115 moons.
NGJ218.6 is a medium gas giant (21298 km radius) which orbits its star in 177666 Earth days, one day on NGJ218.6 lasts 8 Earth hours. Its average temperature is 1263 K (990 C), its atmosphere mainly consists of hydrogen, helium and it has 107 moons.
NGJ218.7 is a medium gas giant (27303 km radius) which orbits its star in 326393 Earth days, one day on NGJ218.7 lasts 8 Earth hours. Its average temperature is 1142 K (869 C), its atmosphere mainly consists of hydrogen and it has 89 moons.
NGJ218.8 is a small terrestrial planet (4557 km radius) which orbits its star in 429056 Earth days, one day on NGJ218.8 lasts 20 Earth hours. Its average temperature is 1898 K (1625 C), its atmosphere mainly consists of and it has 64 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:NGJ218.1NGJ218.2NGJ218.3NGJ218.4NGJ218.5
distance from star:40*106 km123*106 km184*106 km541*106 km2863*106 km
radius:6066 km10540 km5167 km59450 km77475 km
mass:1785*1021 kg9367*1021 kg1103*1021 kg1680914*1021 kg3720272*1021 kg
surface gravity: 3.23 m/s2
0.33 Earths
5.62 m/s2
0.57 Earths
2.75 m/s2
0.28 Earths
31.7 m/s2
3.24 Earths
41.3 m/s2
4.22 Earths
escape velocity:6.267 km/s10.89 km/s5.338 km/s61.43 km/s80.06 km/s
year: 279 NGJ218.1 days
163 Earth days
2071 NGJ218.2 days
863 Earth days
2239 NGJ218.3 days
1586 Earth days
23841 NGJ218.4 days
7947 Earth days
290127 NGJ218.5 days
96709 Earth days
day:14 hrs10 hrs17 hrs8 hrs8 hrs
axial tilt:15°242°
temperature:597 K
324 C
130 K
-143 C
86 K
-187 C
1381 K
1108 C
1329 K
1056 C
atmosphere:5% H2
3% He
60% N2
32% O2
0% other
52% N2
48% O2
0% other
4% H2
1% He
53% N2
40% O2
2% CO2
0% other
91% H2
9% He
0% other
89% H2
11% He
0% other
moons:54112170115
rings:000101

planet:NGJ218.6NGJ218.7NGJ218.8
distance from star:4294*106 km6442*106 km7730*106 km
radius:21298 km27303 km4557 km
mass:77287*1021 kg162825*1021 kg757*1021 kg
surface gravity: 11.3 m/s2
1.15 Earths
14.5 m/s2
1.48 Earths
2.43 m/s2
0.24 Earths
escape velocity:22.00 km/s28.21 km/s4.708 km/s
year: 532998 NGJ218.6 days
177666 Earth days
979179 NGJ218.7 days
326393 Earth days
514867 NGJ218.8 days
429056 Earth days
day:8 hrs8 hrs20 hrs
axial tilt:32°30°
temperature:1263 K
990 C
1142 K
869 C
1898 K
1625 C
atmosphere:81% H2
19% He
0% other
99% H2
1% He
0% other
100% other
moons:1078964
rings:1300

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