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SDG287: red dwarf star with 9 planets

  SDG287.1  
SDG287.2
 
SDG287.3
  SDG287.4   SDG287.5   SDG287.6   SDG287.7   SDG287.8   SDG287.9  

Solar system 'SDG287' comprises the star 'SDG287' and the retinue of celestial objects gravitationally bound to it: 9 planets and their 514 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'SDG287', a red dwarf class star that contains about 97.01% of the system's known mass and dominates it gravitationally. SDG287 is located more than 503 lightyears from the center of the galaxy.

This solar system comprises 9 planets

SDG287.1 is a large terrestrial planet (8655 km radius) which orbits its star in 28 Earth days, one day on SDG287.1 lasts 12 Earth hours. Its average temperature is 1195 K (922 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 4 moons.
SDG287.2 is a very large terrestrial planet (10417 km radius) which orbits its star in 102 Earth days, one day on SDG287.2 lasts 11 Earth hours. Its average temperature is 434 K (161 C), its atmosphere mainly consists of nitrogen, oxygen and it has 25 moons.
SDG287.3 is a small terrestrial planet (3289 km radius) which orbits its star in 282 Earth days, one day on SDG287.3 lasts 32 Earth hours. Its average temperature is 169 K (-104 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
SDG287.4 is a very large terrestrial planet (11801 km radius) which orbits its star in 1241 Earth days, one day on SDG287.4 lasts 10 Earth hours. Its average temperature is 31 K (-242 C), its atmosphere mainly consists of nitrogen and it has 19 moons.
SDG287.5 is a very large terrestrial planet (11033 km radius) which orbits its star in 2281 Earth days, one day on SDG287.5 lasts 11 Earth hours. Its average temperature is 17 K (-256 C), its atmosphere mainly consists of nitrogen and it has 26 moons.
SDG287.6 is a small gas giant (19894 km radius) which orbits its star in 14673 Earth days, one day on SDG287.6 lasts 9 Earth hours. Its average temperature is 1622 K (1349 C), its atmosphere mainly consists of hydrogen and it has 54 moons.
SDG287.7 is a medium gas giant (37638 km radius) which orbits its star in 26957 Earth days, one day on SDG287.7 lasts 9 Earth hours. Its average temperature is 1625 K (1352 C), its atmosphere mainly consists of hydrogen, helium and it has 109 moons.
SDG287.8 is a large gas giant (77381 km radius) which orbits its star in 170907 Earth days, one day on SDG287.8 lasts 9 Earth hours. Its average temperature is 1091 K (818 C), its atmosphere mainly consists of hydrogen and it has 151 moons.
SDG287.9 is a large gas giant (54624 km radius) which orbits its star in 313977 Earth days, one day on SDG287.9 lasts 9 Earth hours. Its average temperature is 1951 K (1678 C), its atmosphere mainly consists of hydrogen and it has 125 moons.
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Planetary Statistics

planet:SDG287.1SDG287.2SDG287.3SDG287.4SDG287.5
distance from star:12*106 km29*106 km58*106 km156*106 km235*106 km
radius:8655 km10417 km3289 km11801 km11033 km
mass:5186*1021 kg9043*1021 kg284*1021 kg13147*1021 kg10744*1021 kg
surface gravity: 4.62 m/s2
0.47 Earths
5.56 m/s2
0.56 Earths
1.75 m/s2
0.17 Earths
6.30 m/s2
0.64 Earths
5.89 m/s2
0.60 Earths
escape velocity:8.943 km/s10.76 km/s3.395 km/s12.19 km/s11.40 km/s
year: 56 SDG287.1 days
28 Earth days
222 SDG287.2 days
102 Earth days
211 SDG287.3 days
282 Earth days
2978 SDG287.4 days
1241 Earth days
4976 SDG287.5 days
2281 Earth days
day:12 hrs11 hrs32 hrs10 hrs11 hrs
axial tilt:24°26°30°
temperature:1195 K
922 C
434 K
161 C
169 K
-104 C
31 K
-242 C
17 K
-256 C
atmosphere:16% H2
4% He
33% N2
47% O2
0% other
87% N2
11% O2
2% CO2
0% other
61% N2
39% O2
0% other
95% N2
2% O2
3% CO2
0% other
89% N2
7% O2
4% CO2
0% other
moons:42511926
rings:06200

planet:SDG287.6SDG287.7SDG287.8SDG287.9
distance from star:814*106 km1221*106 km4185*106 km6278*106 km
radius:19894 km37638 km77381 km54624 km
mass:62987*1021 kg426549*1021 kg3706747*1021 kg1303888*1021 kg
surface gravity: 10.6 m/s2
1.08 Earths
20.0 m/s2
2.04 Earths
41.3 m/s2
4.22 Earths
29.1 m/s2
2.97 Earths
escape velocity:20.55 km/s38.89 km/s79.96 km/s56.44 km/s
year: 39128 SDG287.6 days
14673 Earth days
71885 SDG287.7 days
26957 Earth days
455752 SDG287.8 days
170907 Earth days
837272 SDG287.9 days
313977 Earth days
day:9 hrs9 hrs9 hrs9 hrs
axial tilt:85°
temperature:1622 K
1349 C
1625 K
1352 C
1091 K
818 C
1951 K
1678 C
atmosphere:91% H2
9% He
0% other
79% H2
21% He
0% other
91% H2
9% He
0% other
95% H2
5% He
0% other
moons:54109151125
rings:0000

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