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VKK121: red supergiant star with 5 planets

 
VKK121.1
  VKK121.2  
VKK121.3
 
VKK121.4
  VKK121.5  

Solar system 'VKK121' comprises the star 'VKK121' and the retinue of celestial objects gravitationally bound to it: 5 planets and their 124 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'VKK121', a red supergiant class star that contains about 99.99% of the system's known mass and dominates it gravitationally. VKK121 is located more than 4640 lightyears from the center of the galaxy.

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This solar system comprises 5 planets

VKK121.1 is a small terrestrial planet (4263 km radius) which orbits its star in 2 Earth days, one day on VKK121.1 lasts 18 Earth hours. Its average temperature is 1997 K (1724 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
VKK121.2 is a medium terrestrial planet (5385 km radius) which orbits its star in 119 Earth days, one day on VKK121.2 lasts 13 Earth hours. Its average temperature is 1284 K (1011 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
VKK121.3 is a very small terrestrial planet (2490 km radius) which orbits its star in 219 Earth days, one day on VKK121.3 lasts 45 Earth hours. Its average temperature is 1712 K (1439 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 0 moons.
VKK121.4 is a huge terrestrial planet (14271 km radius) which orbits its star in 5012 Earth days, one day on VKK121.4 lasts 6 Earth hours. Its average temperature is 1274 K (1001 C), its atmosphere mainly consists of hydrogen, helium and it has 62 moons.
VKK121.5 is a large terrestrial planet (8477 km radius) which orbits its star in 6589 Earth days, one day on VKK121.5 lasts 8 Earth hours. Its average temperature is 1261 K (988 C), its atmosphere mainly consists of and it has 62 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:VKK121.1VKK121.2VKK121.3VKK121.4VKK121.5
distance from star:2*106 km32*106 km49*106 km398*106 km477*106 km
radius:4263 km5385 km2490 km14271 km8477 km
mass:619*1021 kg1249*1021 kg123*1021 kg23251*1021 kg4873*1021 kg
surface gravity: 2.27 m/s2
0.23 Earths 		2.87 m/s2
0.29 Earths 		1.32 m/s2
0.13 Earths 		7.61 m/s2
0.77 Earths 		4.52 m/s2
0.46 Earths
escape velocity:4.402 km/s5.564 km/s2.567 km/s14.74 km/s8.759 km/s
year: 2 VKK121.1 days
2 Earth days 		219 VKK121.2 days
119 Earth days 		116 VKK121.3 days
219 Earth days 		20048 VKK121.4 days
5012 Earth days 		19767 VKK121.5 days
6589 Earth days
day:18 hrs13 hrs45 hrs6 hrs8 hrs
axial tilt:268°1°9°2°11°
temperature:1997 K
1724 C		1284 K
1011 C		1712 K
1439 C		1274 K
1001 C		1261 K
988 C
atmosphere:88% N2
11% O2
1% CO2
0% other		82% N2
9% O2
9% CO2
0% other		85% N2
15% CO2
0% other		79% H2
21% He
0% other		100% other
moons:0006262
rings:30140

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