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LDA854: red dwarf star with 4 planets

  LDA854.1   LDA854.2   LDA854.3  
LDA854.4
 

Solar system 'LDA854' comprises the star 'LDA854' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 53 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LDA854', a red dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. LDA854 is located more than 4967 lightyears from the center of the galaxy.

This solar system comprises 4 planets

LDA854.1 is a very small terrestrial planet (2453 km radius) which orbits its star in 22 Earth days, one day on LDA854.1 lasts 45 Earth hours. Its average temperature is 1526 K (1253 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LDA854.2 is a medium terrestrial planet (6929 km radius) which orbits its star in 164 Earth days, one day on LDA854.2 lasts 9 Earth hours. Its average temperature is 439 K (166 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
LDA854.3 is a very large terrestrial planet (10777 km radius) which orbits its star in 930 Earth days, one day on LDA854.3 lasts 6 Earth hours. Its average temperature is 65 K (-208 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 33 moons.
LDA854.4 is a medium terrestrial planet (5551 km radius) which orbits its star in 2440 Earth days, one day on LDA854.4 lasts 12 Earth hours. Its average temperature is 1676 K (1403 C), its atmosphere mainly consists of hydrogen and it has 19 moons.
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Planetary Orbits

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Planetary Statistics

planet:LDA854.1LDA854.2LDA854.3LDA854.4
distance from star:10*106 km40*106 km129*106 km246*106 km
radius:2453 km6929 km10777 km5551 km
mass:118*1021 kg2661*1021 kg10013*1021 kg1368*1021 kg
surface gravity: 1.30 m/s2
0.13 Earths
3.69 m/s2
0.37 Earths
5.75 m/s2
0.58 Earths
2.96 m/s2
0.30 Earths
escape velocity:2.534 km/s7.159 km/s11.13 km/s5.735 km/s
year: 11 LDA854.1 days
22 Earth days
437 LDA854.2 days
164 Earth days
3720 LDA854.3 days
930 Earth days
4880 LDA854.4 days
2440 Earth days
day:45 hrs9 hrs6 hrs12 hrs
axial tilt:12°27°
temperature:1526 K
1253 C
439 K
166 C
65 K
-208 C
1676 K
1403 C
atmosphere:2% H2
2% He
66% N2
30% O2
0% other
80% N2
18% O2
2% CO2
0% other
31% N2
69% CO2
0% other
99% H2
1% He
0% other
moons:013319
rings:0008

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