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SBD441: red dwarf star with 4 planets

  SBD441.1   SBD441.2  
SBD441.3
 
SBD441.4
 

Solar system 'SBD441' comprises the star 'SBD441' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 180 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'SBD441', a red dwarf class star that contains about 99.62% of the system's known mass and dominates it gravitationally. SBD441 is located more than 1900 lightyears from the center of the galaxy.

This solar system comprises 4 planets

SBD441.1 is a large terrestrial planet (8491 km radius) which orbits its star in 402 Earth days, one day on SBD441.1 lasts 7 Earth hours. Its average temperature is 193 K (-80 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
SBD441.2 is a very small terrestrial planet (2444 km radius) which orbits its star in 739 Earth days, one day on SBD441.2 lasts 46 Earth hours. Its average temperature is 172 K (-101 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
SBD441.3 is a large gas giant (42609 km radius) which orbits its star in 53226 Earth days, one day on SBD441.3 lasts 4 Earth hours. Its average temperature is 1012 K (739 C), its atmosphere mainly consists of hydrogen and it has 47 moons.
SBD441.4 is a large gas giant (73086 km radius) which orbits its star in 133334 Earth days, one day on SBD441.4 lasts 4 Earth hours. Its average temperature is 1115 K (842 C), its atmosphere mainly consists of hydrogen, helium and it has 130 moons.
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Planetary Orbits

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Planetary Statistics

planet:SBD441.1SBD441.2SBD441.3SBD441.4
distance from star:74*106 km111*106 km1922*106 km3546*106 km
radius:8491 km2444 km42609 km73086 km
mass:4897*1021 kg116*1021 kg618862*1021 kg3123148*1021 kg
surface gravity: 4.53 m/s2
0.46 Earths
1.29 m/s2
0.13 Earths
22.7 m/s2
2.32 Earths
39.0 m/s2
3.98 Earths
escape velocity:8.774 km/s2.517 km/s44.03 km/s75.52 km/s
year: 1378 SBD441.1 days
402 Earth days
385 SBD441.2 days
739 Earth days
319356 SBD441.3 days
53226 Earth days
800004 SBD441.4 days
133334 Earth days
day:7 hrs46 hrs4 hrs4 hrs
axial tilt:181°30°
temperature:193 K
-80 C
172 K
-101 C
1012 K
739 C
1115 K
842 C
atmosphere:68% N2
29% O2
3% CO2
0% other
81% N2
18% O2
1% CO2
0% other
100% H2
0% other
84% H2
16% He
0% other
moons:3047130
rings:00184

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