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TAC291: red giant star with 3 planets

  TAC291.1   TAC291.2   TAC291.3  

Solar system 'TAC291' comprises the star 'TAC291' and the retinue of celestial objects gravitationally bound to it: 3 planets and their 14 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'TAC291', a red giant class star that contains about 99.99% of the system's known mass and dominates it gravitationally. TAC291 is located more than 573 lightyears from the center of the galaxy.

This solar system comprises 3 planets

TAC291.1 is a very large terrestrial planet (10940 km radius) which orbits its star in 23 Earth days, one day on TAC291.1 lasts 5 Earth hours. Its average temperature is 1046 K (773 C), its atmosphere mainly consists of nitrogen, oxygen and it has 5 moons.
TAC291.2 is a small terrestrial planet (3941 km radius) which orbits its star in 105 Earth days, one day on TAC291.2 lasts 19 Earth hours. Its average temperature is 1129 K (856 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
TAC291.3 is a medium terrestrial planet (6741 km radius) which orbits its star in 205 Earth days, one day on TAC291.3 lasts 8 Earth hours. Its average temperature is 1392 K (1119 C), its atmosphere mainly consists of nitrogen, oxygen and it has 9 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:TAC291.1TAC291.2TAC291.3
distance from star:11*106 km30*106 km47*106 km
radius:10940 km3941 km6741 km
mass:10474*1021 kg489*1021 kg2450*1021 kg
surface gravity: 5.84 m/s2
0.59 Earths
2.10 m/s2
0.21 Earths
3.59 m/s2
0.36 Earths
escape velocity:11.30 km/s4.069 km/s6.965 km/s
year: 110 TAC291.1 days
23 Earth days
132 TAC291.2 days
105 Earth days
615 TAC291.3 days
205 Earth days
day:5 hrs19 hrs8 hrs
axial tilt:19°10°13°
temperature:1046 K
773 C
1129 K
856 C
1392 K
1119 C
atmosphere:1% H2
1% He
50% N2
47% O2
1% CO2
0% other
6% H2
1% He
50% N2
41% O2
2% CO2
0% other
51% N2
49% O2
0% other
moons:509
rings:000

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