🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.43 AU - 0.59 AU

Year: 127 Days

Day: 47.1 Hours

Environment

Temp: 199 °C

Axial Tilt: 38.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.56 AU - 0.94 AU

Year: 227 Days

Day: 21.1 Hours

Environment

Temp: 191 °C

Axial Tilt: 17 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 76,900,941 km

• M1: 41,738 km (0.039 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.79 AU - 1.93 AU

Year: 887 Days

Day: 31.3 Hours

Environment

Temp: -44 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,900,941 km

• M1: 438,322 km (0.089 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.98 AU - 2.22 AU

Year: 1065 Days

Day: 39.9 Hours

Environment

Temp: -55 °C

Axial Tilt: 42.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.31 AU - 3.37 AU

Year: 1674 Days

Day: 39.8 Hours

Environment

Temp: -87 °C

Axial Tilt: 104 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,900,941 km

• M1: 58,792 km (0.105 R)
• M2: 1,227,002 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.9

Radius: 10.7

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 7.12 AU - 7.26 AU

Year: 6745 Days

Day: 12.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,900,941 km

• M1: 133,142 km (0.082 R)
• M2: 1,136,196 km (0.117 R)
• M3: 1,714,541 km (0.106 R)
• M4: 2,777,135 km (0.058 R)
• M5: 3,221,740 km (0.089 R)
• M6: 4,800,895 km (0.087 R)
• M7: 5,496,226 km (0.094 R)
• M8: 6,257,529 km (0.03 R)
• M9: 6,723,228 km (0.074 R)
• M10: 8,857,690 km (0.105 R)
• M11: 13,873,557 km (0.049 R)
• M12: 14,415,999 km (0.079 R)
• M13: 16,344,615 km (0.085 R)
• M14: 17,061,338 km (0.068 R)
• M15: 20,264,677 km (0.039 R)
• M16: 22,274,225 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.7

Radius: 11.4

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 9.09 AU - 9.09 AU

Year: 9588 Days

Day: 6.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,900,941 km

• M1: 141,819 km (0.091 R)
• M2: 642,224 km (0.103 R)
• M3: 1,244,654 km (0.054 R)
• M4: 1,708,557 km (0.115 R)
• M5: 2,446,524 km (0.075 R)
• M6: 2,910,127 km (0.056 R)
• M7: 4,664,611 km (0.108 R)
• M8: 5,288,734 km (0.094 R)
• M9: 7,227,522 km (0.087 R)
• M10: 10,463,174 km (0.086 R)
• M11: 10,964,028 km (0.079 R)
• M12: 11,586,355 km (0.114 R)
• M13: 13,245,246 km (0.113 R)
• M14: 16,487,032 km (0.07 R)
• M15: 17,934,541 km (0.099 R)
• M16: 21,080,883 km (0.106 R)
• M17: 27,394,960 km (0.064 R)
• M18: 28,540,880 km (0.093 R)
• M19: 28,929,984 km (0.085 R)
• M20: 29,818,147 km (0.076 R)
• M21: 34,754,877 km (0.093 R)
• M22: 38,411,647 km (0.09 R)
• M23: 40,822,865 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.5

Radius: 12.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.59 AU - 10.57 AU

Year: 10373 Days

Day: 13.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 76.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,900,941 km

• M1: 160,519 km (0.052 R)
• M2: 651,948 km (0.114 R)
• M3: 1,124,976 km (0.059 R)
• M4: 1,704,518 km (0.05 R)
• M5: 2,138,202 km (0.041 R)
• M6: 3,156,814 km (0.034 R)
• M7: 3,820,580 km (0.058 R)
• M8: 4,805,233 km (0.093 R)
• M9: 6,227,311 km (0.074 R)
• M10: 7,378,466 km (0.071 R)
• M11: 8,783,789 km (0.105 R)
• M12: 10,850,633 km (0.059 R)
• M13: 12,613,045 km (0.073 R)
• M14: 13,854,109 km (0.071 R)
• M15: 14,504,262 km (0.091 R)
• M16: 15,865,901 km (0.117 R)
• M17: 16,759,150 km (0.118 R)
• M18: 20,531,410 km (0.116 R)
• M19: 21,022,091 km (0.071 R)
• M20: 24,131,633 km (0.057 R)
• M21: 29,886,064 km (0.102 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.4

Radius: 9.5

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 9.99 AU - 12.09 AU

Year: 12833 Days

Day: 10.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,900,941 km

• M1: 118,182 km (0.107 R)
• M2: 465,249 km (0.03 R)
• M3: 946,506 km (0.082 R)
• M4: 5,040,102 km (0.052 R)
• M5: 5,360,391 km (0.088 R)
• M6: 6,815,230 km (0.083 R)
• M7: 7,171,423 km (0.083 R)
• M8: 9,709,051 km (0.067 R)
• M9: 10,531,989 km (0.086 R)
• M10: 13,950,600 km (0.086 R)
• M11: 14,938,245 km (0.12 R)
• M12: 21,181,862 km (0.077 R)
• M13: 22,329,277 km (0.07 R)
• M14: 25,082,327 km (0.108 R)
• M15: 27,156,950 km (0.118 R)
• M16: 29,530,620 km (0.036 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 354

Radius: 3.2

Gravity: 34.57 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 17.79 AU - 19.59 AU

Year: 28268 Days

Day: 20.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,900,941 km

• M1: 39,943 km (0.093 R)
• M2: 274,063 km (0.1 R)
• M3: 927,058 km (0.085 R)
• M4: 2,419,297 km (0.116 R)
• M5: 2,678,251 km (0.111 R)
• M6: 3,449,428 km (0.062 R)
• M7: 3,996,507 km (0.101 R)
• M8: 4,460,261 km (0.086 R)
• M9: 5,145,718 km (0.098 R)
• M10: 8,329,310 km (0.096 R)
• M11: 8,434,178 km (0.112 R)
• M12: 9,418,682 km (0.095 R)
• M13: 9,763,206 km (0.069 R)
• M14: 10,477,236 km (0.109 R)
• M15: 11,612,684 km (0.108 R)
• M16: 12,008,670 km (0.06 R)
• M17: 12,481,998 km (0.103 R)
• M18: 12,827,569 km (0.044 R)
• M19: 13,755,973 km (0.047 R)
• M20: 15,745,325 km (0.084 R)
• M21: 28,967,832 km (0.086 R)
• M22: 33,514,261 km (0.111 R)
• M23: 35,129,470 km (0.101 R)
• M24: 35,956,147 km (0.101 R)
• M25: 36,654,919 km (0.078 R)
• M26: 44,626,391 km (0.101 R)
• M27: 44,787,059 km (0.076 R)
• M28: 45,921,909 km (0.079 R)
• M29: 52,062,153 km (0.119 R)
• M30: 59,501,207 km (0.042 R)
• M31: 68,041,600 km (0.093 R)
• M32: 72,824,692 km (0.055 R)
• M33: 74,618,072 km (0.087 R)
• M34: 75,298,143 km (0.052 R)
• M35: 75,753,819 km (0.057 R)
• M36: 76,211,289 km (0.059 R)

Kuiper Belt

Range: 31.4 - 56.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 14,766 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit