🌌 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: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928

Radius: 10.4

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.58 AU - 0.84 AU

Year: 413 Days

Day: 5.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,645,017 km

• M1: 129,402 km (0.108 R)
• M2: 520,601 km (0.094 R)
• M3: 868,565 km (0.102 R)
• M4: 1,260,811 km (0.094 R)
• M5: 1,615,807 km (0.093 R)
• M6: 1,996,234 km (0.1 R)
• M7: 2,398,203 km (0.079 R)
• M8: 2,985,226 km (0.096 R)
• M9: 3,576,885 km (0.092 R)
• M10: 3,981,847 km (0.079 R)
• M11: 5,122,081 km (0.069 R)
• M12: 6,207,115 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.6

Radius: 10.6

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.74 AU - 1 AU

Year: 560 Days

Day: 14.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,645,017 km

• M1: 131,796 km (0.081 R)
• M2: 538,552 km (0.107 R)
• M3: 984,055 km (0.078 R)
• M4: 1,347,727 km (0.116 R)
• M5: 1,872,965 km (0.055 R)
• M6: 2,320,712 km (0.118 R)
• M7: 3,230,865 km (0.096 R)
• M8: 3,932,928 km (0.115 R)
• M9: 4,263,689 km (0.03 R)
• M10: 4,779,652 km (0.1 R)
• M11: 5,141,080 km (0.078 R)
• M12: 5,848,379 km (0.073 R)
• M13: 6,244,215 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378

Radius: 11.8

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.72 AU - 1.9 AU

Year: 1681 Days

Day: 13.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,645,017 km

• M1: 146,756 km (0.116 R)
• M2: 560,244 km (0.063 R)
• M3: 1,168,060 km (0.11 R)
• M4: 2,061,459 km (0.112 R)
• M5: 3,501,039 km (0.118 R)
• M6: 4,710,239 km (0.062 R)
• M7: 5,421,277 km (0.1 R)
• M8: 7,057,429 km (0.097 R)
• M9: 9,752,734 km (0.087 R)
• M10: 11,008,459 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 10.6

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.97 AU - 2.55 AU

Year: 2345 Days

Day: 10 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,645,017 km

• M1: 139,425 km (0.096 R)
• M2: 742,753 km (0.112 R)
• M3: 1,387,969 km (0.06 R)
• M4: 1,834,967 km (0.093 R)
• M5: 2,409,573 km (0.108 R)
• M6: 3,152,925 km (0.088 R)
• M7: 3,949,833 km (0.103 R)
• M8: 4,429,144 km (0.086 R)
• M9: 4,787,581 km (0.087 R)
• M10: 5,239,665 km (0.105 R)
• M11: 5,819,507 km (0.025 R)
• M12: 6,948,372 km (0.039 R)
• M13: 7,892,784 km (0.104 R)
• M14: 8,974,227 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.1

Radius: 9.4

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.35 AU - 2.45 AU

Year: 2566 Days

Day: 7.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,645,017 km

• M1: 117,285 km (0.099 R)
• M2: 449,093 km (0.115 R)
• M3: 793,766 km (0.114 R)
• M4: 1,196,633 km (0.087 R)
• M5: 2,075,970 km (0.054 R)
• M6: 2,376,811 km (0.083 R)
• M7: 2,760,530 km (0.094 R)
• M8: 3,786,023 km (0.086 R)
• M9: 4,095,840 km (0.094 R)
• M10: 5,445,063 km (0.089 R)
• M11: 5,818,759 km (0.119 R)
• M12: 8,062,278 km (0.118 R)
• M13: 8,784,088 km (0.118 R)
• M14: 9,115,148 km (0.089 R)
• M15: 9,802,251 km (0.111 R)
• M16: 10,489,952 km (0.12 R)
• M17: 11,815,539 km (0.111 R)
• M18: 12,256,554 km (0.051 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 538.8

Radius: 8

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 8.14 AU - 12.18 AU

Year: 22354 Days

Day: 24.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,645,017 km

• M1: 150,944 km (0.06 R)
• M2: 926,011 km (0.071 R)
• M3: 1,830,031 km (0.088 R)
• M4: 2,438,296 km (0.036 R)
• M5: 2,990,761 km (0.101 R)
• M6: 3,988,429 km (0.035 R)
• M7: 6,360,901 km (0.093 R)
• M8: 9,041,845 km (0.117 R)
• M9: 14,163,777 km (0.083 R)
• M10: 16,417,319 km (0.112 R)
• M11: 17,757,866 km (0.086 R)
• M12: 19,810,648 km (0.112 R)
• M13: 21,719,965 km (0.057 R)
• M14: 23,024,907 km (0.089 R)
• M15: 33,393,237 km (0.084 R)
• M16: 39,069,578 km (0.104 R)
• M17: 42,058,394 km (0.102 R)
• M18: 51,757,423 km (0.106 R)
• M19: 58,543,032 km (0.107 R)
• M20: 61,652,574 km (0.087 R)
• M21: 64,055,564 km (0.1 R)
• M22: 66,728,729 km (0.065 R)
• M23: 73,846,446 km (0.158 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: 276 - 17,587 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit