🌌 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: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.54 AU - 0.7 AU

Year: 188 Days

Day: 37.1 Hours

Environment

Temp: 109 °C

Axial Tilt: 2.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 82,553,678 km

• M1: 264,639 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.65 AU - 0.73 AU

Year: 221 Days

Day: 28.6 Hours

Environment

Temp: 160 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.16 AU - 1.18 AU

Year: 487 Days

Day: 21.6 Hours

Environment

Temp: -38 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.33 AU - 2.17 AU

Year: 891 Days

Day: 44.3 Hours

Environment

Temp: -82 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,553,678 km

• M1: 253,419 km (0.092 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.48 AU - 2.3 AU

Year: 1000 Days

Day: 22.1 Hours

Environment

Temp: -84 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 13.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 164.7

Radius: 7.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 10.44 AU - 15.88 AU

Year: 18380 Days

Day: 23.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,553,678 km

• M1: 501,901 km (0.112 R)
• M2: 1,757,326 km (0.054 R)
• M3: 5,312,968 km (0.063 R)
• M4: 10,026,498 km (0.078 R)
• M5: 11,903,802 km (0.069 R)
• M6: 13,698,378 km (0.091 R)
• M7: 17,172,190 km (0.095 R)
• M8: 21,848,619 km (0.095 R)
• M9: 22,603,490 km (0.035 R)
• M10: 23,202,630 km (0.025 R)
• M11: 23,812,241 km (0.071 R)
• M12: 29,992,428 km (0.116 R)
• M13: 31,662,838 km (0.114 R)
• M14: 40,075,026 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687.2

Radius: 7.6

Gravity: 11.9 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 10.93 AU - 15.97 AU

Year: 18991 Days

Day: 22.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,553,678 km

• M1: 94,546 km (0.086 R)
• M2: 378,931 km (0.058 R)
• M3: 631,153 km (0.071 R)
• M4: 1,573,470 km (0.049 R)
• M5: 2,594,177 km (0.096 R)
• M6: 3,060,174 km (0.075 R)
• M7: 3,697,611 km (0.064 R)
• M8: 4,095,391 km (0.107 R)
• M9: 5,937,689 km (0.094 R)
• M10: 7,201,342 km (0.109 R)
• M11: 10,729,010 km (0.099 R)
• M12: 11,475,054 km (0.088 R)
• M13: 12,455,668 km (0.068 R)
• M14: 13,070,216 km (0.1 R)
• M15: 15,497,292 km (0.116 R)
• M16: 16,368,999 km (0.069 R)
• M17: 18,296,568 km (0.103 R)
• M18: 22,696,839 km (0.116 R)
• M19: 24,553,648 km (0.077 R)
• M20: 28,919,812 km (0.108 R)
• M21: 29,996,168 km (0.057 R)
• M22: 33,515,608 km (0.086 R)
• M23: 38,289,725 km (0.108 R)
• M24: 48,823,808 km (0.069 R)
• M25: 49,328,551 km (0.06 R)
• M26: 52,959,142 km (0.096 R)
• M27: 53,491,860 km (0.109 R)
• M28: 55,293,767 km (0.077 R)
• M29: 56,578,812 km (0.048 R)
• M30: 57,135,616 km (0.095 R)
• M31: 64,710,205 km (0.069 R)
• M32: 65,522,970 km (0.104 R)
• M33: 68,421,279 km (0.084 R)
• M34: 70,972,521 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.5

Radius: 6

Gravity: 19.43 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 14.96 AU - 15.05 AU

Year: 22367 Days

Day: 19.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,553,678 km

• M1: 74,649 km (0.061 R)
• M2: 326,123 km (0.064 R)
• M3: 622,626 km (0.099 R)
• M4: 1,317,508 km (0.098 R)
• M5: 4,085,368 km (0.095 R)
• M6: 6,141,741 km (0.117 R)
• M7: 6,817,025 km (0.103 R)
• M8: 10,446,419 km (0.068 R)
• M9: 12,990,032 km (0.118 R)
• M10: 20,114,630 km (0.088 R)
• M11: 30,349,518 km (0.056 R)
• M12: 34,179,224 km (0.095 R)
• M13: 35,149,516 km (0.064 R)
• M14: 38,616,147 km (0.034 R)
• M15: 48,785,960 km (0.095 R)
• M16: 56,473,645 km (0.091 R)
• M17: 56,665,878 km (0.088 R)
• M18: 68,362,038 km (0.096 R)
• M19: 69,679,397 km (0.085 R)
• M20: 72,138,487 km (0.088 R)
• M21: 73,503,867 km (0.119 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 17,955 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit