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UKK854: yellow dwarf star with 4 planets

 
UKK854.1
  UKK854.2  
UKK854.3
  UKK854.4  

Solar system 'UKK854' comprises the star 'UKK854' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 441 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'UKK854', a yellow dwarf class star that contains about 99.65% of the system's known mass and dominates it gravitationally. UKK854 is located more than 1440 lightyears from the center of the galaxy.

This solar system comprises 4 planets

UKK854.1 is a medium gas giant (33400 km radius) which orbits its star in 2477 Earth days, one day on UKK854.1 lasts 4 Earth hours. Its average temperature is 1064 K (791 C), its atmosphere mainly consists of hydrogen and it has 122 moons.
UKK854.2 is a large gas giant (71740 km radius) which orbits its star in 136490 Earth days, one day on UKK854.2 lasts 4 Earth hours. Its average temperature is 1263 K (990 C), its atmosphere mainly consists of hydrogen and it has 103 moons.
UKK854.3 is a large gas giant (46077 km radius) which orbits its star in 250748 Earth days, one day on UKK854.3 lasts 4 Earth hours. Its average temperature is 1369 K (1096 C), its atmosphere mainly consists of hydrogen, helium and it has 176 moons.
UKK854.4 is a small terrestrial planet (4989 km radius) which orbits its star in 329617 Earth days, one day on UKK854.4 lasts 14 Earth hours. Its average temperature is 1561 K (1288 C), its atmosphere mainly consists of and it has 40 moons.
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Planetary Orbits

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Planetary Statistics

planet:UKK854.1UKK854.2UKK854.3UKK854.4
distance from star:248*106 km3602*106 km5404*106 km6484*106 km
radius:33400 km71740 km46077 km4989 km
mass:298077*1021 kg2953752*1021 kg782604*1021 kg993*1021 kg
surface gravity: 17.8 m/s2
1.82 Earths
38.3 m/s2
3.91 Earths
24.6 m/s2
2.51 Earths
2.66 m/s2
0.27 Earths
escape velocity:34.51 km/s74.13 km/s47.61 km/s5.154 km/s
year: 14862 UKK854.1 days
2477 Earth days
818940 UKK854.2 days
136490 Earth days
1504488 UKK854.3 days
250748 Earth days
565057 UKK854.4 days
329617 Earth days
day:4 hrs4 hrs4 hrs14 hrs
axial tilt:19°
temperature:1064 K
791 C
1263 K
990 C
1369 K
1096 C
1561 K
1288 C
atmosphere:96% H2
4% He
0% other
94% H2
6% He
0% other
77% H2
23% He
0% other
100% other
moons:12210317640
rings:24040

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