🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.59 AU - 0.63 AU

Year: 308 Days

Day: 26.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.94 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.8

Radius: 13

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.26 AU - 1.28 AU

Year: 924 Days

Day: 11.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,059,827 km

• M1: 161,715 km (0.084 R)
• M2: 617,241 km (0.086 R)
• M3: 1,074,562 km (0.051 R)
• M4: 1,533,677 km (0.115 R)
• M5: 2,074,174 km (0.09 R)
• M6: 2,511,449 km (0.102 R)
• M7: 3,037,435 km (0.115 R)
• M8: 4,774,117 km (0.119 R)
• M9: 5,425,616 km (0.089 R)
• M10: 7,026,163 km (0.051 R)
• M11: 7,440,400 km (0.094 R)
• M12: 8,950,141 km (0.113 R)
• M13: 9,643,677 km (0.109 R)
• M14: 10,279,618 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.6

Radius: 8.2

Gravity: 14.52 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.13 AU - 1.53 AU

Year: 990 Days

Day: 9.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,059,827 km

• M1: 105,915 km (0.118 R)
• M2: 384,018 km (0.045 R)
• M3: 943,963 km (0.094 R)
• M4: 2,221,678 km (0.073 R)
• M5: 2,488,710 km (0.075 R)
• M6: 2,950,369 km (0.119 R)
• M7: 3,303,719 km (0.111 R)
• M8: 4,027,923 km (0.063 R)
• M9: 4,518,155 km (0.103 R)
• M10: 4,777,857 km (0.112 R)
• M11: 5,126,420 km (0.115 R)
• M12: 5,533,625 km (0.117 R)
• M13: 5,831,475 km (0.108 R)
• M14: 6,139,945 km (0.102 R)
• M15: 6,505,712 km (0.106 R)
• M16: 7,587,305 km (0.089 R)
• M17: 8,956,873 km (0.057 R)
• M18: 9,278,958 km (0.1 R)
• M19: 9,548,234 km (0.107 R)
• M20: 10,292,034 km (0.059 R)
• M21: 10,974,051 km (0.077 R)
• M22: 11,547,908 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.4

Radius: 9.5

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.49 AU - 2.21 AU

Year: 1625 Days

Day: 7.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,059,827 km

• M1: 118,182 km (0.068 R)
• M2: 429,795 km (0.058 R)
• M3: 868,864 km (0.062 R)
• M4: 1,222,514 km (0.117 R)
• M5: 1,582,446 km (0.106 R)
• M6: 2,200,435 km (0.088 R)
• M7: 2,646,087 km (0.103 R)
• M8: 3,203,788 km (0.098 R)
• M9: 4,020,592 km (0.106 R)
• M10: 4,503,195 km (0.104 R)
• M11: 5,603,936 km (0.119 R)
• M12: 8,379,426 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.1

Radius: 11.4

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.31 AU - 3.79 AU

Year: 4319 Days

Day: 14.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,059,827 km

• M1: 141,819 km (0.081 R)
• M2: 690,693 km (0.072 R)
• M3: 1,362,089 km (0.083 R)
• M4: 1,819,559 km (0.109 R)
• M5: 3,066,906 km (0.04 R)
• M6: 3,620,568 km (0.086 R)
• M7: 5,566,986 km (0.113 R)
• M8: 7,182,493 km (0.101 R)
• M9: 8,784,686 km (0.107 R)
• M10: 10,014,381 km (0.08 R)
• M11: 12,726,291 km (0.11 R)
• M12: 15,300,421 km (0.114 R)
• M13: 18,702,127 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.6

Radius: 10.3

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 4.84 AU - 4.84 AU

Year: 6875 Days

Day: 13.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,059,827 km

• M1: 128,205 km (0.078 R)
• M2: 540,497 km (0.093 R)
• M3: 1,037,760 km (0.06 R)
• M4: 1,757,775 km (0.069 R)
• M5: 2,083,898 km (0.111 R)
• M6: 2,960,392 km (0.102 R)
• M7: 3,294,893 km (0.1 R)
• M8: 4,040,938 km (0.107 R)
• M9: 4,754,669 km (0.102 R)
• M10: 5,275,868 km (0.088 R)
• M11: 9,687,061 km (0.07 R)
• M12: 10,382,840 km (0.053 R)
• M13: 11,012,348 km (0.115 R)
• M14: 13,221,759 km (0.052 R)
• M15: 15,399,904 km (0.114 R)
• M16: 16,412,083 km (0.081 R)
• M17: 17,807,233 km (0.026 R)
• M18: 19,861,511 km (0.056 R)
• M19: 25,811,018 km (0.113 R)
• M20: 26,696,638 km (0.082 R)
• M21: 33,575,896 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 11.1

Radius: 5.6

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.22 AU - 7.04 AU

Year: 9800 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 82,059,827 km

• M1: 384,467 km (0.074 R)
• M2: 836,850 km (0.074 R)
• M3: 2,427,076 km (0.115 R)
• M4: 7,171,722 km (0.07 R)
• M5: 8,400,369 km (0.11 R)
• M6: 10,794,234 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.5

Radius: 3.3

Gravity: 62.67 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.44 AU - 10.86 AU

Year: 22441 Days

Day: 19 Hours

Environment

Temp: -234 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,059,827 km

• M1: 41,289 km (0.117 R)
• M2: 238,459 km (0.069 R)
• M3: 747,690 km (0.105 R)
• M4: 926,310 km (0.103 R)
• M5: 1,174,942 km (0.114 R)
• M6: 1,533,079 km (0.095 R)
• M7: 2,322,657 km (0.094 R)
• M8: 3,069,599 km (0.098 R)
• M9: 3,931,881 km (0.068 R)
• M10: 5,134,349 km (0.045 R)
• M11: 6,653,515 km (0.086 R)
• M12: 8,665,606 km (0.071 R)
• M13: 9,868,822 km (0.051 R)
• M14: 9,988,949 km (0.083 R)
• M15: 11,049,448 km (0.095 R)
• M16: 12,741,999 km (0.06 R)
• M17: 13,172,541 km (0.095 R)
• M18: 14,214,640 km (0.073 R)
• M19: 16,377,227 km (0.081 R)
• M20: 27,813,386 km (0.117 R)
• M21: 30,146,963 km (0.07 R)
• M22: 30,273,373 km (0.108 R)
• M23: 31,426,174 km (0.059 R)
• M24: 32,342,760 km (0.092 R)
• M25: 37,924,706 km (0.114 R)
• M26: 45,595,337 km (0.088 R)
• M27: 50,233,319 km (0.044 R)
• M28: 51,846,433 km (0.068 R)
• M29: 55,934,494 km (0.086 R)
• M30: 61,847,948 km (0.04 R)
• M31: 62,666,698 km (0.105 R)
• M32: 62,872,395 km (0.058 R)
• M33: 64,534,876 km (0.1 R)
• M34: 73,516,882 km (0.101 R)
• M35: 75,827,271 km (0.097 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: 230 - 14,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit