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VHA257: red giant star with 9 planets

  VHA257.1   VHA257.2   VHA257.3   VHA257.4   VHA257.5  
VHA257.6
 
VHA257.7
 
VHA257.8
 
VHA257.9
 

Solar system 'VHA257' comprises the star 'VHA257' and the retinue of celestial objects gravitationally bound to it: 9 planets and their 435 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'VHA257', a red giant class star that contains about 99.98% of the system's known mass and dominates it gravitationally. VHA257 is located more than 4956 lightyears from the center of the galaxy.

This solar system comprises 9 planets

VHA257.1 is a very large terrestrial planet (10545 km radius) which orbits its star in 8 Earth days, one day on VHA257.1 lasts 11 Earth hours. Its average temperature is 1474 K (1201 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 0 moons.
VHA257.2 is a medium terrestrial planet (5807 km radius) which orbits its star in 37 Earth days, one day on VHA257.2 lasts 16 Earth hours. Its average temperature is 1624 K (1351 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
VHA257.3 is a small terrestrial planet (4663 km radius) which orbits its star in 234 Earth days, one day on VHA257.3 lasts 20 Earth hours. Its average temperature is 1707 K (1434 C), its atmosphere mainly consists of nitrogen, oxygen and it has 2 moons.
VHA257.4 is a large terrestrial planet (7911 km radius) which orbits its star in 665 Earth days, one day on VHA257.4 lasts 12 Earth hours. Its average temperature is 1131 K (858 C), its atmosphere mainly consists of nitrogen, oxygen and it has 36 moons.
VHA257.5 is a very large terrestrial planet (9990 km radius) which orbits its star in 1492 Earth days, one day on VHA257.5 lasts 11 Earth hours. Its average temperature is 1928 K (1655 C), its atmosphere mainly consists of nitrogen, oxygen and it has 20 moons.
VHA257.6 is a large gas giant (50312 km radius) which orbits its star in 74210 Earth days, one day on VHA257.6 lasts 9 Earth hours. Its average temperature is 1366 K (1093 C), its atmosphere mainly consists of hydrogen and it has 134 moons.
VHA257.7 is a medium gas giant (31697 km radius) which orbits its star in 136333 Earth days, one day on VHA257.7 lasts 9 Earth hours. Its average temperature is 1822 K (1549 C), its atmosphere mainly consists of hydrogen and it has 95 moons.
VHA257.8 is a small gas giant (18931 km radius) which orbits its star in 250459 Earth days, one day on VHA257.8 lasts 9 Earth hours. Its average temperature is 1624 K (1351 C), its atmosphere mainly consists of hydrogen, helium and it has 55 moons.
VHA257.9 is a large gas giant (47800 km radius) which orbits its star in 460124 Earth days, one day on VHA257.9 lasts 9 Earth hours. Its average temperature is 1298 K (1025 C), its atmosphere mainly consists of hydrogen, helium and it has 93 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:VHA257.1VHA257.2VHA257.3VHA257.4VHA257.5
distance from star:5*106 km15*106 km51*106 km103*106 km177*106 km
radius:10545 km5807 km4663 km7911 km9990 km
mass:9380*1021 kg1566*1021 kg811*1021 kg3960*1021 kg7976*1021 kg
surface gravity: 5.63 m/s2
0.57 Earths
3.09 m/s2
0.31 Earths
2.48 m/s2
0.25 Earths
4.22 m/s2
0.43 Earths
5.33 m/s2
0.54 Earths
escape velocity:10.89 km/s5.999 km/s4.818 km/s8.174 km/s10.32 km/s
year: 17 VHA257.1 days
8 Earth days
55 VHA257.2 days
37 Earth days
280 VHA257.3 days
234 Earth days
1330 VHA257.4 days
665 Earth days
3255 VHA257.5 days
1492 Earth days
day:11 hrs16 hrs20 hrs12 hrs11 hrs
axial tilt:12°185°309°
temperature:1474 K
1201 C
1624 K
1351 C
1707 K
1434 C
1131 K
858 C
1928 K
1655 C
atmosphere:80% N2
1% O2
19% CO2
0% other
3% H2
2% He
64% N2
29% O2
2% CO2
0% other
50% N2
49% O2
1% CO2
0% other
1% H2
1% He
66% N2
32% O2
0% other
78% N2
21% O2
1% CO2
0% other
moons:0023620
rings:00000

planet:VHA257.6VHA257.7VHA257.8VHA257.9
distance from star:2399*106 km3599*106 km5399*106 km8099*106 km
radius:50312 km31697 km18931 km47800 km
mass:1018837*1021 kg254767*1021 kg54276*1021 kg873722*1021 kg
surface gravity: 26.8 m/s2
2.74 Earths
16.9 m/s2
1.72 Earths
10.1 m/s2
1.03 Earths
25.5 m/s2
2.60 Earths
escape velocity:51.99 km/s32.75 km/s19.56 km/s49.39 km/s
year: 197893 VHA257.6 days
74210 Earth days
363554 VHA257.7 days
136333 Earth days
667890 VHA257.8 days
250459 Earth days
1226997 VHA257.9 days
460124 Earth days
day:9 hrs9 hrs9 hrs9 hrs
axial tilt:26°
temperature:1366 K
1093 C
1822 K
1549 C
1624 K
1351 C
1298 K
1025 C
atmosphere:90% H2
10% He
0% other
94% H2
6% He
0% other
87% H2
13% He
0% other
78% H2
22% He
0% other
moons:134955593
rings:320523

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