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PKH451: yellow dwarf star with 4 planets

  PKH451.1  
PKH451.2
 
PKH451.3
 
PKH451.4
 

Solar system 'PKH451' comprises the star 'PKH451' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 376 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'PKH451', a yellow dwarf class star that contains about 99.77% of the system's known mass and dominates it gravitationally. PKH451 is located more than 3554 lightyears from the center of the galaxy.

This solar system comprises 4 planets

PKH451.1 is a very small terrestrial planet (2655 km radius) which orbits its star in 8 Earth days, one day on PKH451.1 lasts 39 Earth hours. Its average temperature is 1200 K (927 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 0 moons.
PKH451.2 is a large gas giant (45471 km radius) which orbits its star in 59136 Earth days, one day on PKH451.2 lasts 4 Earth hours. Its average temperature is 1338 K (1065 C), its atmosphere mainly consists of hydrogen and it has 113 moons.
PKH451.3 is a large gas giant (69333 km radius) which orbits its star in 216451 Earth days, one day on PKH451.3 lasts 4 Earth hours. Its average temperature is 1449 K (1176 C), its atmosphere mainly consists of hydrogen, helium and it has 130 moons.
PKH451.4 is a large gas giant (59416 km radius) which orbits its star in 438545 Earth days, one day on PKH451.4 lasts 4 Earth hours. Its average temperature is 1379 K (1106 C), its atmosphere mainly consists of hydrogen, helium and it has 133 moons.
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Planetary Statistics

planet:PKH451.1PKH451.2PKH451.3PKH451.4
distance from star:5*106 km2062*106 km4899*106 km7844*106 km
radius:2655 km45471 km69333 km59416 km
mass:149*1021 kg752131*1021 kg2666305*1021 kg1678031*1021 kg
surface gravity: 1.41 m/s2
0.14 Earths
24.2 m/s2
2.47 Earths
37.0 m/s2
3.78 Earths
31.7 m/s2
3.24 Earths
escape velocity:2.737 km/s46.98 km/s71.64 km/s61.39 km/s
year: 4 PKH451.1 days
8 Earth days
354816 PKH451.2 days
59136 Earth days
1298706 PKH451.3 days
216451 Earth days
2631270 PKH451.4 days
438545 Earth days
day:39 hrs4 hrs4 hrs4 hrs
axial tilt:
temperature:1200 K
927 C
1338 K
1065 C
1449 K
1176 C
1379 K
1106 C
atmosphere:27% H2
4% He
25% N2
43% O2
1% CO2
0% other
93% H2
7% He
0% other
80% H2
20% He
0% other
86% H2
14% He
0% other
moons:0113130133
rings:04312

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