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VAK871: yellow giant star with 4 planets

  VAK871.1   VAK871.2  
VAK871.3
 
VAK871.4
 

Solar system 'VAK871' comprises the star 'VAK871' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 276 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'VAK871', a yellow giant class star that contains about 99.99% of the system's known mass and dominates it gravitationally. VAK871 is located more than 1440 lightyears from the center of the galaxy.

This solar system comprises 4 planets

VAK871.1 is a very large terrestrial planet (11966 km radius) which orbits its star in 5 Earth days, one day on VAK871.1 lasts 5 Earth hours. Its average temperature is 1447 K (1174 C), its atmosphere mainly consists of nitrogen, oxygen and it has 2 moons.
VAK871.2 is a small terrestrial planet (3740 km radius) which orbits its star in 120 Earth days, one day on VAK871.2 lasts 21 Earth hours. Its average temperature is 1553 K (1280 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
VAK871.3 is a medium gas giant (20778 km radius) which orbits its star in 19211 Earth days, one day on VAK871.3 lasts 4 Earth hours. Its average temperature is 1561 K (1288 C), its atmosphere mainly consists of hydrogen, helium and it has 120 moons.
VAK871.4 is a medium gas giant (31316 km radius) which orbits its star in 42611 Earth days, one day on VAK871.4 lasts 4 Earth hours. Its average temperature is 1639 K (1366 C), its atmosphere mainly consists of hydrogen and it has 154 moons.
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Planetary Orbits

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Planetary Statistics

planet:VAK871.1VAK871.2VAK871.3VAK871.4
distance from star:4*106 km33*106 km974*106 km1657*106 km
radius:11966 km3740 km20778 km31316 km
mass:13706*1021 kg418*1021 kg71763*1021 kg245690*1021 kg
surface gravity: 6.38 m/s2
0.65 Earths
1.99 m/s2
0.20 Earths
11.0 m/s2
1.12 Earths
16.7 m/s2
1.70 Earths
escape velocity:12.36 km/s3.862 km/s21.47 km/s32.36 km/s
year: 24 VAK871.1 days
5 Earth days
137 VAK871.2 days
120 Earth days
115266 VAK871.3 days
19211 Earth days
255666 VAK871.4 days
42611 Earth days
day:5 hrs21 hrs4 hrs4 hrs
axial tilt:30°
temperature:1447 K
1174 C
1553 K
1280 C
1561 K
1288 C
1639 K
1366 C
atmosphere:82% N2
14% O2
4% CO2
0% other
4% H2
1% He
64% N2
29% O2
2% CO2
0% other
88% H2
12% He
0% other
98% H2
2% He
0% other
moons:20120154
rings:002213

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