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SCD489: red dwarf star with 8 planets

  SCD489.1   SCD489.2   SCD489.3  
SCD489.4
  SCD489.5   SCD489.6  
SCD489.7
 
SCD489.8
 

Solar system 'SCD489' comprises the star 'SCD489' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 285 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'SCD489', a red dwarf class star that contains about 99.78% of the system's known mass and dominates it gravitationally. SCD489 is located more than 4400 lightyears from the center of the galaxy.

This solar system comprises 8 planets

SCD489.1 is a very large terrestrial planet (10383 km radius) which orbits its star in 1 Earth days, one day on SCD489.1 lasts 10 Earth hours. Its average temperature is 1163 K (890 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
SCD489.2 is a very large terrestrial planet (11557 km radius) which orbits its star in 511 Earth days, one day on SCD489.2 lasts 9 Earth hours. Its average temperature is 111 K (-162 C), its atmosphere mainly consists of nitrogen, oxygen and it has 30 moons.
SCD489.3 is a large terrestrial planet (8718 km radius) which orbits its star in 1045 Earth days, one day on SCD489.3 lasts 11 Earth hours. Its average temperature is 64 K (-209 C), its atmosphere mainly consists of nitrogen, oxygen and it has 27 moons.
SCD489.4 is a very small terrestrial planet (2238 km radius) which orbits its star in 1920 Earth days, one day on SCD489.4 lasts 58 Earth hours. Its average temperature is 38 K (-235 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
SCD489.5 is a very small terrestrial planet (2915 km radius) which orbits its star in 3528 Earth days, one day on SCD489.5 lasts 37 Earth hours. Its average temperature is 21 K (-252 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 2 moons.
SCD489.6 is a very large terrestrial planet (9784 km radius) which orbits its star in 6483 Earth days, one day on SCD489.6 lasts 10 Earth hours. Its average temperature is 11 K (-262 C), its atmosphere mainly consists of nitrogen, oxygen and it has 34 moons.
SCD489.7 is a medium gas giant (21599 km radius) which orbits its star in 11910 Earth days, one day on SCD489.7 lasts 8 Earth hours. Its average temperature is 1741 K (1468 C), its atmosphere mainly consists of hydrogen, helium and it has 67 moons.
SCD489.8 is a large gas giant (44620 km radius) which orbits its star in 78383 Earth days, one day on SCD489.8 lasts 8 Earth hours. Its average temperature is 1529 K (1256 C), its atmosphere mainly consists of hydrogen, helium and it has 124 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:SCD489.1SCD489.2SCD489.3SCD489.4SCD489.5
distance from star:1*106 km86*106 km140*106 km210*106 km315*106 km
radius:10383 km11557 km8718 km2238 km2915 km
mass:8954*1021 kg12348*1021 kg5300*1021 kg89*1021 kg198*1021 kg
surface gravity: 5.54 m/s2
0.56 Earths
6.17 m/s2
0.63 Earths
4.65 m/s2
0.47 Earths
1.18 m/s2
0.12 Earths
1.55 m/s2
0.15 Earths
escape velocity:10.72 km/s11.94 km/s9.008 km/s2.303 km/s3.011 km/s
year: 2 SCD489.1 days
1 Earth days
1362 SCD489.2 days
511 Earth days
2280 SCD489.3 days
1045 Earth days
794 SCD489.4 days
1920 Earth days
2288 SCD489.5 days
3528 Earth days
day:10 hrs9 hrs11 hrs58 hrs37 hrs
axial tilt:20°23°23°
temperature:1163 K
890 C
111 K
-162 C
64 K
-209 C
38 K
-235 C
21 K
-252 C
atmosphere:85% N2
8% O2
7% CO2
0% other
1% H2
2% He
51% N2
44% O2
2% CO2
0% other
5% H2
1% He
62% N2
31% O2
1% CO2
0% other
75% N2
23% O2
2% CO2
0% other
13% H2
2% He
38% N2
46% O2
1% CO2
0% other
moons:0302712
rings:00020

planet:SCD489.6SCD489.7SCD489.8
distance from star:472*106 km708*106 km2489*106 km
radius:9784 km21599 km44620 km
mass:7492*1021 kg80610*1021 kg710687*1021 kg
surface gravity: 5.22 m/s2
0.53 Earths
11.5 m/s2
1.17 Earths
23.8 m/s2
2.43 Earths
escape velocity:10.11 km/s22.32 km/s46.10 km/s
year: 15559 SCD489.6 days
6483 Earth days
35730 SCD489.7 days
11910 Earth days
235149 SCD489.8 days
78383 Earth days
day:10 hrs8 hrs8 hrs
axial tilt:15°
temperature:11 K
-262 C
1741 K
1468 C
1529 K
1256 C
atmosphere:53% N2
46% O2
1% CO2
0% other
88% H2
12% He
0% other
86% H2
14% He
0% other
moons:3467124
rings:0248

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