🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.93 AU - 0.95 AU

Year: 330 Days

Day: 24.2 Hours

Environment

Temp: 92 °C

Axial Tilt: 24.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,689,525 km

• M1: 43,383 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.8 AU - 1.12 AU

Year: 340 Days

Day: 20.2 Hours

Environment

Temp: 123 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.95 AU - 1.41 AU

Year: 464 Days

Day: 14.3 Hours

Environment

Temp: 14 °C

Axial Tilt: 16.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.32 AU - 1.42 AU

Year: 580 Days

Day: 46.7 Hours

Environment

Temp: -7 °C

Axial Tilt: 1.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 71,689,525 km

• M1: 940,372 km (0.086 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.3 AU - 5.3 AU

Year: 3225 Days

Day: 32.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.8

Radius: 8.9

Gravity: 12.12 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.33 AU - 7.45 AU

Year: 5842 Days

Day: 14.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 71,689,525 km

• M1: 111,450 km (0.081 R)
• M2: 409,599 km (0.092 R)
• M3: 913,594 km (0.031 R)
• M4: 1,191,996 km (0.118 R)
• M5: 1,490,593 km (0.092 R)
• M6: 2,466,719 km (0.086 R)
• M7: 2,919,253 km (0.094 R)
• M8: 3,677,564 km (0.097 R)
• M9: 4,040,489 km (0.117 R)
• M10: 4,453,828 km (0.113 R)
• M11: 4,782,046 km (0.102 R)
• M12: 5,274,971 km (0.118 R)
• M13: 5,674,397 km (0.11 R)
• M14: 7,068,051 km (0.087 R)
• M15: 7,747,075 km (0.06 R)
• M16: 8,102,520 km (0.118 R)
• M17: 8,846,021 km (0.108 R)
• M18: 9,147,311 km (0.094 R)
• M19: 12,175,322 km (0.061 R)
• M20: 12,765,037 km (0.043 R)
• M21: 14,059,507 km (0.112 R)
• M22: 15,131,974 km (0.095 R)
• M23: 16,258,147 km (0.113 R)
• M24: 17,238,611 km (0.079 R)
• M25: 18,119,593 km (0.097 R)
• M26: 26,102,734 km (0.055 R)
• M27: 28,645,748 km (0.117 R)
• M28: 34,962,369 km (0.1 R)
• M29: 36,152,869 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.6

Radius: 13.8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.92 AU - 7.98 AU

Year: 8107 Days

Day: 8.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,689,525 km

• M1: 171,738 km (0.104 R)
• M2: 702,960 km (0.1 R)
• M3: 1,186,162 km (0.06 R)
• M4: 2,475,546 km (0.066 R)
• M5: 3,147,539 km (0.097 R)
• M6: 3,676,667 km (0.107 R)
• M7: 4,421,963 km (0.111 R)
• M8: 4,887,662 km (0.112 R)
• M9: 8,086,513 km (0.116 R)
• M10: 11,183,338 km (0.115 R)
• M11: 11,948,980 km (0.082 R)
• M12: 13,929,357 km (0.117 R)
• M13: 19,532,246 km (0.11 R)
• M14: 22,189,703 km (0.045 R)
• M15: 27,291,888 km (0.108 R)
• M16: 28,119,164 km (0.05 R)
• M17: 29,248,179 km (0.097 R)
• M18: 30,309,576 km (0.104 R)
• M19: 31,596,716 km (0.116 R)
• M20: 35,786,204 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423

Radius: 5.1

Gravity: 16.26 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 14.81 AU - 17.31 AU

Year: 23276 Days

Day: 22 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,689,525 km

• M1: 63,429 km (0.077 R)
• M2: 379,380 km (0.111 R)
• M3: 815,757 km (0.116 R)
• M4: 1,155,943 km (0.116 R)
• M5: 2,454,751 km (0.063 R)
• M6: 6,766,012 km (0.106 R)
• M7: 10,192,851 km (0.078 R)
• M8: 11,279,380 km (0.113 R)
• M9: 12,709,685 km (0.064 R)
• M10: 17,550,224 km (0.068 R)
• M11: 20,749,374 km (0.065 R)
• M12: 22,288,138 km (0.112 R)
• M13: 24,736,606 km (0.072 R)
• M14: 31,258,026 km (0.051 R)
• M15: 31,629,777 km (0.045 R)
• M16: 33,404,307 km (0.103 R)
• M17: 34,977,029 km (0.109 R)
• M18: 35,646,779 km (0.111 R)
• M19: 37,847,214 km (0.077 R)
• M20: 38,553,017 km (0.068 R)
• M21: 39,990,802 km (0.063 R)
• M22: 40,282,667 km (0.099 R)
• M23: 45,304,518 km (0.092 R)
• M24: 47,882,987 km (0.107 R)
• M25: 51,413,347 km (0.03 R)
• M26: 62,057,535 km (0.039 R)
• M27: 70,195,809 km (0.055 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 20,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit