🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.5

Radius: 12.3

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.66 AU - 0.78 AU

Year: 429 Days

Day: 11.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,722,881 km

• M1: 153,039 km (0.106 R)
• M2: 560,992 km (0.1 R)
• M3: 1,040,902 km (0.093 R)
• M4: 1,562,849 km (0.051 R)
• M5: 2,074,474 km (0.064 R)
• M6: 2,726,122 km (0.087 R)
• M7: 3,117,021 km (0.073 R)
• M8: 3,641,063 km (0.08 R)
• M9: 4,236,761 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.4

Radius: 15

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.66 AU - 0.94 AU

Year: 503 Days

Day: 11.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 34,722,881 km

• M1: 186,549 km (0.109 R)
• M2: 798,853 km (0.115 R)
• M3: 1,587,682 km (0.088 R)
• M4: 2,378,008 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.4

Radius: 9.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.11 AU - 1.21 AU

Year: 878 Days

Day: 10.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 34,722,881 km

• M1: 118,482 km (0.07 R)
• M2: 630,555 km (0.068 R)
• M3: 1,278,763 km (0.115 R)
• M4: 1,874,013 km (0.054 R)
• M5: 2,703,533 km (0.073 R)
• M6: 3,013,948 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.2

Radius: 10.3

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.1 AU - 1.22 AU

Year: 878 Days

Day: 8.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,722,881 km

• M1: 138,079 km (0.051 R)
• M2: 707,897 km (0.095 R)
• M3: 1,276,519 km (0.101 R)
• M4: 1,612,067 km (0.101 R)
• M5: 2,007,454 km (0.102 R)
• M6: 2,748,412 km (0.105 R)
• M7: 3,836,737 km (0.058 R)
• M8: 4,311,859 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.7

Radius: 13.4

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.75 AU - 2.55 AU

Year: 2216 Days

Day: 9.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,722,881 km

• M1: 166,652 km (0.083 R)
• M2: 657,632 km (0.05 R)
• M3: 1,238,970 km (0.103 R)
• M4: 1,887,476 km (0.108 R)
• M5: 2,432,013 km (0.1 R)
• M6: 3,523,778 km (0.047 R)
• M7: 4,111,997 km (0.058 R)
• M8: 4,689,444 km (0.072 R)
• M9: 5,874,559 km (0.094 R)
• M10: 6,561,662 km (0.068 R)
• M11: 7,250,560 km (0.109 R)
• M12: 8,600,830 km (0.096 R)
• M13: 10,112,666 km (0.082 R)
• M14: 10,599,159 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.6

Radius: 11.5

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.91 AU - 2.59 AU

Year: 2372 Days

Day: 9.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,722,881 km

• M1: 143,016 km (0.071 R)
• M2: 650,751 km (0.106 R)
• M3: 1,055,114 km (0.047 R)
• M4: 1,545,496 km (0.064 R)
• M5: 2,623,797 km (0.029 R)
• M6: 3,088,598 km (0.06 R)
• M7: 4,091,651 km (0.115 R)
• M8: 4,497,211 km (0.092 R)
• M9: 4,950,792 km (0.103 R)
• M10: 5,549,333 km (0.09 R)
• M11: 6,811,341 km (0.109 R)
• M12: 7,495,901 km (0.116 R)
• M13: 8,225,938 km (0.089 R)
• M14: 9,261,155 km (0.062 R)
• M15: 9,895,600 km (0.107 R)
• M16: 10,523,163 km (0.115 R)
• M17: 12,012,709 km (0.083 R)
• M18: 13,094,750 km (0.061 R)
• M19: 13,596,202 km (0.113 R)
• M20: 14,770,995 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281.6

Radius: 5.3

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.69 AU - 5.75 AU

Year: 9616 Days

Day: 17.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 34,722,881 km

• M1: 66,870 km (0.114 R)
• M2: 315,053 km (0.072 R)
• M3: 834,906 km (0.095 R)
• M4: 1,212,192 km (0.075 R)
• M5: 1,564,644 km (0.092 R)
• M6: 2,578,918 km (0.082 R)
• M7: 3,803,675 km (0.037 R)
• M8: 4,582,482 km (0.077 R)
• M9: 5,080,942 km (0.1 R)
• M10: 5,432,647 km (0.072 R)
• M11: 5,738,126 km (0.119 R)
• M12: 6,283,559 km (0.096 R)
• M13: 6,654,562 km (0.085 R)
• M14: 7,256,394 km (0.076 R)
• M15: 8,365,663 km (0.07 R)
• M16: 10,211,850 km (0.109 R)
• M17: 11,205,329 km (0.111 R)
• M18: 13,109,710 km (0.045 R)
• M19: 17,023,639 km (0.046 R)
• M20: 17,743,803 km (0.084 R)
• M21: 22,966,415 km (0.073 R)
• M22: 28,485,529 km (0.119 R)
• M23: 28,668,038 km (0.07 R)
• M24: 31,403,884 km (0.114 R)
• M25: 31,794,335 km (0.092 R)
• M26: 32,286,960 km (0.094 R)
• M27: 33,287,621 km (0.117 R)
• M28: 34,619,042 km (0.087 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 13,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit