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WHF421: red dwarf star with 7 planets

  WHF421.1   WHF421.2   WHF421.3   WHF421.4  
WHF421.5
  WHF421.6  
WHF421.7
 

Solar system 'WHF421' comprises the star 'WHF421' and the retinue of celestial objects gravitationally bound to it: 7 planets and their 216 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'WHF421', a red dwarf class star that contains about 99.98% of the system's known mass and dominates it gravitationally. WHF421 is located more than 5391 lightyears from the center of the galaxy.

WHF421.3, the third planet in this system, may feature life forms. Its average temperature is 320K (47C) and it's atmosphere contains 16% of oxygen. One year on WHF421.3 lasts 605 days, one day lasts 53 hours. It's diameter is 4648 km, 0.3 times the diameter of the Earth.

This solar system comprises 7 planets

WHF421.1 is a very large terrestrial planet (10634 km radius) which orbits its star in 29 Earth days, one day on WHF421.1 lasts 9 Earth hours. Its average temperature is 1482 K (1209 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 7 moons.
WHF421.2 is a medium terrestrial planet (5179 km radius) which orbits its star in 329 Earth days, one day on WHF421.2 lasts 16 Earth hours. Its average temperature is 480 K (207 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
WHF421.3 is a very small terrestrial planet (2324 km radius) which orbits its star in 605 Earth days, one day on WHF421.3 lasts 53 Earth hours. Its average temperature is 320 K (47 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
WHF421.4 is a medium terrestrial planet (5519 km radius) which orbits its star in 1111 Earth days, one day on WHF421.4 lasts 15 Earth hours. Its average temperature is 190 K (-83 C), its atmosphere mainly consists of nitrogen, oxygen and it has 17 moons.
WHF421.5 is a very large terrestrial planet (9886 km radius) which orbits its star in 2350 Earth days, one day on WHF421.5 lasts 9 Earth hours. Its average temperature is 87 K (-186 C), its atmosphere mainly consists of nitrogen, oxygen and it has 18 moons.
WHF421.6 is a medium terrestrial planet (6802 km radius) which orbits its star in 4318 Earth days, one day on WHF421.6 lasts 12 Earth hours. Its average temperature is 46 K (-227 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 28 moons.
WHF421.7 is a medium gas giant (25277 km radius) which orbits its star in 30138 Earth days, one day on WHF421.7 lasts 7 Earth hours. Its average temperature is 1322 K (1049 C), its atmosphere mainly consists of hydrogen, helium and it has 143 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:WHF421.1WHF421.2WHF421.3WHF421.4WHF421.5
distance from star:13*106 km64*106 km97*106 km145*106 km240*106 km
radius:10634 km5179 km2324 km5519 km9886 km
mass:9620*1021 kg1111*1021 kg100*1021 kg1344*1021 kg7729*1021 kg
surface gravity: 5.67 m/s2
0.57 Earths
2.76 m/s2
0.28 Earths
1.23 m/s2
0.12 Earths
2.94 m/s2
0.30 Earths
5.27 m/s2
0.53 Earths
escape velocity:10.98 km/s5.351 km/s2.396 km/s5.701 km/s10.21 km/s
year: 77 WHF421.1 days
29 Earth days
493 WHF421.2 days
329 Earth days
273 WHF421.3 days
605 Earth days
1777 WHF421.4 days
1111 Earth days
6266 WHF421.5 days
2350 Earth days
day:9 hrs16 hrs53 hrs15 hrs9 hrs
axial tilt:267°18°
temperature:1482 K
1209 C
480 K
207 C
320 K
47 C
190 K
-83 C
87 K
-186 C
atmosphere:26% H2
3% He
26% N2
45% O2
0% other
70% N2
27% O2
3% CO2
0% other
2% H2
1% He
81% N2
16% O2
0% other
59% N2
40% O2
1% CO2
0% other
74% N2
25% O2
1% CO2
0% other
moons:7301718
rings:00004

planet:WHF421.6WHF421.7
distance from star:360*106 km1316*106 km
radius:6802 km25277 km
mass:2517*1021 kg129201*1021 kg
surface gravity: 3.63 m/s2
0.37 Earths
13.4 m/s2
1.37 Earths
escape velocity:7.028 km/s26.12 km/s
year: 8636 WHF421.6 days
4318 Earth days
103330 WHF421.7 days
30138 Earth days
day:12 hrs7 hrs
axial tilt:15°
temperature:46 K
-227 C
1322 K
1049 C
atmosphere:11% H2
2% He
55% N2
32% O2
0% other
79% H2
21% He
0% other
moons:28143
rings:014

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