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SFJ399: red dwarf star with 3 planets

  SFJ399.1   SFJ399.2   SFJ399.3  

Solar system 'SFJ399' comprises the star 'SFJ399' and the retinue of celestial objects gravitationally bound to it: 3 planets and their 5 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'SFJ399', a red dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. SFJ399 is located more than 229 lightyears from the center of the galaxy.

This solar system comprises 3 planets

SFJ399.1 is a medium terrestrial planet (6637 km radius) which orbits its star in 136 Earth days, one day on SFJ399.1 lasts 8 Earth hours. Its average temperature is 165 K (-108 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
SFJ399.2 is a small terrestrial planet (4896 km radius) which orbits its star in 390 Earth days, one day on SFJ399.2 lasts 13 Earth hours. Its average temperature is 81 K (-192 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
SFJ399.3 is a large terrestrial planet (7414 km radius) which orbits its star in 794 Earth days, one day on SFJ399.3 lasts 7 Earth hours. Its average temperature is 47 K (-226 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 2 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:SFJ399.1SFJ399.2SFJ399.3
distance from star:35*106 km72*106 km116*106 km
radius:6637 km4896 km7414 km
mass:2338*1021 kg938*1021 kg3260*1021 kg
surface gravity: 3.54 m/s2
0.36 Earths
2.61 m/s2
0.26 Earths
3.95 m/s2
0.40 Earths
escape velocity:6.857 km/s5.057 km/s7.661 km/s
year: 408 SFJ399.1 days
136 Earth days
720 SFJ399.2 days
390 Earth days
2722 SFJ399.3 days
794 Earth days
day:8 hrs13 hrs7 hrs
axial tilt:22°
temperature:165 K
-108 C
81 K
-192 C
47 K
-226 C
atmosphere:84% N2
9% O2
7% CO2
0% other
82% N2
17% O2
1% CO2
0% other
73% N2
2% O2
25% CO2
0% other
moons:032
rings:000

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