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Egnir (MJH685): red dwarf star with 4 planets

 
Tsedegnir
 
Redegnir
 
Degnir
  Degnirnu  

Solar system 'Egnir (MJH685)' comprises the star 'Egnir' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 598 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'Egnir', a red dwarf class star that contains about 99.22% of the system's known mass and dominates it gravitationally. Egnir is located more than 4905 lightyears from the center of the galaxy.

The abundance of moons and rings in this system has brought it to the attention of several space mining companies. A rivalry has developed between the machine intelligences and the biologicals that has proved rather detrimental to the profit for both sides.

This solar system comprises 4 planets

Tsedegnir is a large gas giant (71794 km radius) which orbits its star in 123494 Earth days, one day on Tsedegnir lasts 4 Earth hours. Its average temperature is 1421 K (1148 C), its atmosphere mainly consists of hydrogen and it has 148 moons.
Redegnir is a medium gas giant (39523 km radius) which orbits its star in 227521 Earth days, one day on Redegnir lasts 4 Earth hours. Its average temperature is 1041 K (768 C), its atmosphere mainly consists of hydrogen, helium and it has 164 moons.
Degnir is a medium gas giant (25657 km radius) which orbits its star in 417983 Earth days, one day on Degnir lasts 4 Earth hours. Its average temperature is 1140 K (867 C), its atmosphere mainly consists of hydrogen and it has 170 moons.
Degnirnu is a large gas giant (53196 km radius) which orbits its star in 767885 Earth days, one day on Degnirnu lasts 4 Earth hours. Its average temperature is 1245 K (972 C), its atmosphere mainly consists of hydrogen, helium and it has 116 moons.
More planetary details...

Location

Planetary Orbits

Contributors

User 'mjjh' updated this system june 13, 2011.
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Planetary Statistics

planet:TsedegnirRedegnirDegnirDegnirnu
distance from star:3370*106 km5064*106 km7597*106 km11396*106 km
radius:71794 km39523 km25657 km53196 km
mass:2960427*1021 kg493900*1021 kg135116*1021 kg1204278*1021 kg
surface gravity: 38.3 m/s2
3.91 Earths
21.1 m/s2
2.15 Earths
13.6 m/s2
1.39 Earths
28.4 m/s2
2.90 Earths
escape velocity:74.19 km/s40.84 km/s26.51 km/s54.97 km/s
year: 740964 Tsedegnir days
123494 Earth days
1365126 Redegnir days
227521 Earth days
2507898 Degnir days
417983 Earth days
4607310 Degnirnu days
767885 Earth days
day:4 hrs4 hrs4 hrs4 hrs
axial tilt:75°32°
temperature:1421 K
1148 C
1041 K
768 C
1140 K
867 C
1245 K
972 C
atmosphere:94% H2
6% He
0% other
88% H2
12% He
0% other
96% H2
4% He
0% other
89% H2
11% He
0% other
moons:148164170116
rings:914180

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