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TAC338: yellow dwarf star with 4 planets

  TAC338.1   TAC338.2  
TAC338.3
 
TAC338.4
 

Solar system 'TAC338' comprises the star 'TAC338' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 244 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'TAC338', a yellow dwarf class star that contains about 99.74% of the system's known mass and dominates it gravitationally. TAC338 is located more than 573 lightyears from the center of the galaxy.

This solar system comprises 4 planets

TAC338.1 is a small terrestrial planet (4801 km radius) which orbits its star in 15 Earth days, one day on TAC338.1 lasts 14 Earth hours. Its average temperature is 1102 K (829 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
TAC338.2 is a medium terrestrial planet (5731 km radius) which orbits its star in 56 Earth days, one day on TAC338.2 lasts 11 Earth hours. Its average temperature is 1612 K (1339 C), its atmosphere mainly consists of nitrogen, oxygen and it has 2 moons.
TAC338.3 is a large gas giant (71674 km radius) which orbits its star in 112004 Earth days, one day on TAC338.3 lasts 4 Earth hours. Its average temperature is 1267 K (994 C), its atmosphere mainly consists of hydrogen and it has 105 moons.
TAC338.4 is a medium gas giant (25026 km radius) which orbits its star in 205765 Earth days, one day on TAC338.4 lasts 4 Earth hours. Its average temperature is 1398 K (1125 C), its atmosphere mainly consists of hydrogen and it has 137 moons.
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Planetary Orbits

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Planetary Statistics

planet:TAC338.1TAC338.2TAC338.3TAC338.4
distance from star:8*106 km20*106 km3157*106 km4736*106 km
radius:4801 km5731 km71674 km25026 km
mass:885*1021 kg1505*1021 kg2945607*1021 kg125390*1021 kg
surface gravity: 2.56 m/s2
0.26 Earths
3.05 m/s2
0.31 Earths
38.2 m/s2
3.90 Earths
13.3 m/s2
1.35 Earths
escape velocity:4.960 km/s5.920 km/s74.06 km/s25.86 km/s
year: 25 TAC338.1 days
15 Earth days
122 TAC338.2 days
56 Earth days
672024 TAC338.3 days
112004 Earth days
1234590 TAC338.4 days
205765 Earth days
day:14 hrs11 hrs4 hrs4 hrs
axial tilt:21°231°
temperature:1102 K
829 C
1612 K
1339 C
1267 K
994 C
1398 K
1125 C
atmosphere:80% N2
20% O2
0% other
3% H2
1% He
71% N2
22% O2
3% CO2
0% other
90% H2
10% He
0% other
96% H2
4% He
0% other
moons:02105137
rings:0089

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