🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.39 AU - 0.65 AU

Year: 242 Days

Day: 34.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.6

Radius: 14.5

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.88 AU - 0.88 AU

Year: 533 Days

Day: 9.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,236,109 km

• M1: 180,265 km (0.058 R)
• M2: 679,174 km (0.113 R)
• M3: 1,189,602 km (0.117 R)
• M4: 2,440,839 km (0.117 R)
• M5: 2,905,490 km (0.115 R)
• M6: 4,072,652 km (0.088 R)
• M7: 4,795,210 km (0.107 R)
• M8: 5,795,272 km (0.109 R)
• M9: 6,770,949 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.7

Radius: 14.4

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.95 AU - 1.37 AU

Year: 807 Days

Day: 10 Hours

Environment

Temp: -159 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,236,109 km

• M1: 179,069 km (0.058 R)
• M2: 686,804 km (0.054 R)
• M3: 1,286,392 km (0.077 R)
• M4: 1,889,272 km (0.107 R)
• M5: 2,813,637 km (0.113 R)
• M6: 3,291,602 km (0.108 R)
• M7: 4,320,536 km (0.085 R)
• M8: 4,990,884 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.9

Radius: 14

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.92 AU - 5 AU

Year: 6082 Days

Day: 11.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,236,109 km

• M1: 174,730 km (0.113 R)
• M2: 823,237 km (0.107 R)
• M3: 1,526,048 km (0.047 R)
• M4: 2,175,303 km (0.072 R)
• M5: 2,732,555 km (0.107 R)
• M6: 3,173,569 km (0.118 R)
• M7: 3,700,603 km (0.091 R)
• M8: 5,003,750 km (0.045 R)
• M9: 5,932,154 km (0.077 R)
• M10: 7,091,837 km (0.118 R)
• M11: 7,805,867 km (0.083 R)
• M12: 9,896,049 km (0.107 R)
• M13: 13,004,992 km (0.067 R)
• M14: 14,413,755 km (0.11 R)
• M15: 15,561,021 km (0.064 R)
• M16: 16,768,276 km (0.117 R)
• M17: 17,367,415 km (0.074 R)
• M18: 18,150,560 km (0.034 R)
• M19: 19,369,184 km (0.078 R)
• M20: 19,968,324 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.7

Radius: 11.5

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.99 AU - 5.47 AU

Year: 6642 Days

Day: 12.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,236,109 km

• M1: 161,715 km (0.105 R)
• M2: 985,850 km (0.059 R)
• M3: 1,387,969 km (0.076 R)
• M4: 2,003,564 km (0.116 R)
• M5: 2,417,950 km (0.111 R)
• M6: 2,813,338 km (0.075 R)
• M7: 3,554,745 km (0.104 R)
• M8: 4,500,353 km (0.096 R)
• M9: 4,878,387 km (0.062 R)
• M10: 5,760,416 km (0.108 R)
• M11: 6,305,700 km (0.067 R)
• M12: 6,745,817 km (0.046 R)
• M13: 7,763,681 km (0.097 R)
• M14: 8,592,154 km (0.09 R)
• M15: 11,632,581 km (0.096 R)
• M16: 15,938,157 km (0.087 R)
• M17: 16,757,056 km (0.107 R)
• M18: 17,144,514 km (0.091 R)
• M19: 18,071,572 km (0.114 R)
• M20: 19,595,675 km (0.049 R)
• M21: 20,905,106 km (0.102 R)
• M22: 21,429,745 km (0.06 R)
• M23: 23,215,645 km (0.038 R)
• M24: 25,777,060 km (0.088 R)
• M25: 28,338,624 km (0.09 R)
• M26: 29,540,194 km (0.103 R)
• M27: 30,487,448 km (0.071 R)
• M28: 30,968,554 km (0.073 R)
• M29: 33,654,883 km (0.06 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.9

Radius: 5

Gravity: 16.96 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.79 AU - 8.71 AU

Year: 15300 Days

Day: 17 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 54,236,109 km

• M1: 62,532 km (0.06 R)
• M2: 267,780 km (0.086 R)
• M3: 631,153 km (0.088 R)
• M4: 820,544 km (0.033 R)
• M5: 1,176,587 km (0.092 R)
• M6: 1,787,844 km (0.088 R)
• M7: 2,229,158 km (0.029 R)
• M8: 2,873,476 km (0.062 R)
• M9: 4,104,517 km (0.031 R)
• M10: 4,708,443 km (0.119 R)
• M11: 5,868,126 km (0.077 R)
• M12: 8,831,809 km (0.114 R)
• M13: 10,577,617 km (0.076 R)
• M14: 10,797,077 km (0.057 R)
• M15: 13,098,640 km (0.116 R)
• M16: 16,797,298 km (0.066 R)
• M17: 19,288,252 km (0.076 R)
• M18: 20,114,481 km (0.06 R)
• M19: 20,792,159 km (0.077 R)
• M20: 28,639,764 km (0.088 R)
• M21: 28,852,493 km (0.115 R)
• M22: 30,041,347 km (0.097 R)
• M23: 32,748,021 km (0.115 R)
• M24: 32,980,646 km (0.059 R)
• M25: 34,519,858 km (0.048 R)
• M26: 36,980,145 km (0.108 R)
• M27: 45,634,980 km (0.059 R)
• M28: 48,896,064 km (0.063 R)
• M29: 49,352,487 km (0.098 R)
• M30: 53,106,347 km (0.04 R)
• M31: 53,427,533 km (0.114 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 10,689 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit