🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.81 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.53 AU - 1.71 AU

Year: 881 Days

Day: 42.6 Hours

Environment

Temp: -89 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,037,591 km

• M1: 31,416 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.71 AU - 2.59 AU

Year: 1348 Days

Day: 40.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.69 AU - 2.73 AU

Year: 1907 Days

Day: 19.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,037,591 km

• M1: 911,201 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.1

Radius: 14.9

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.17 AU - 4.57 AU

Year: 3255 Days

Day: 11 Hours

Environment

Temp: -152 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,037,591 km

• M1: 185,651 km (0.051 R)
• M2: 712,385 km (0.066 R)
• M3: 1,611,468 km (0.055 R)
• M4: 2,167,972 km (0.09 R)
• M5: 2,717,146 km (0.054 R)
• M6: 3,863,664 km (0.103 R)
• M7: 4,662,517 km (0.103 R)
• M8: 5,390,759 km (0.061 R)
• M9: 5,980,624 km (0.055 R)
• M10: 6,568,543 km (0.093 R)
• M11: 7,170,974 km (0.045 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.3

Radius: 7.8

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 14 AU - 16.44 AU

Year: 25383 Days

Day: 16.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 42,037,591 km

• M1: 96,939 km (0.065 R)
• M2: 588,368 km (0.076 R)
• M3: 897,886 km (0.103 R)
• M4: 2,056,073 km (0.106 R)
• M5: 3,411,879 km (0.078 R)
• M6: 3,931,133 km (0.091 R)
• M7: 5,934,697 km (0.107 R)
• M8: 10,455,545 km (0.112 R)
• M9: 13,218,468 km (0.068 R)
• M10: 15,363,103 km (0.116 R)
• M11: 23,171,513 km (0.069 R)
• M12: 24,577,135 km (0.1 R)
• M13: 26,038,856 km (0.097 R)
• M14: 28,278,037 km (0.11 R)
• M15: 29,756,662 km (0.106 R)
• M16: 31,676,601 km (0.052 R)
• M17: 33,405,953 km (0.105 R)
• M18: 41,265,675 km (0.096 R)
• M19: 44,628,037 km (0.106 R)
• M20: 45,122,907 km (0.083 R)
• M21: 47,309,279 km (0.072 R)
• M22: 53,359,765 km (0.077 R)
• M23: 54,291,012 km (0.105 R)
• M24: 58,517,002 km (0.088 R)
• M25: 64,415,796 km (0.103 R)
• M26: 69,146,529 km (0.074 R)
• M27: 72,274,471 km (0.073 R)
• M28: 73,873,373 km (0.066 R)
• M29: 76,904,825 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 173.1

Radius: 3.2

Gravity: 16.9 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 12.98 AU - 19.46 AU

Year: 27926 Days

Day: 24.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,037,591 km

• M1: 40,092 km (0.037 R)
• M2: 162,762 km (0.11 R)
• M3: 299,944 km (0.066 R)
• M4: 471,532 km (0.059 R)
• M5: 3,387,494 km (0.108 R)
• M6: 4,983,105 km (0.093 R)
• M7: 5,512,382 km (0.04 R)
• M8: 6,976,198 km (0.054 R)
• M9: 9,496,323 km (0.061 R)
• M10: 9,654,897 km (0.112 R)
• M11: 13,738,320 km (0.077 R)
• M12: 14,421,983 km (0.116 R)
• M13: 18,021,457 km (0.066 R)
• M14: 18,264,404 km (0.118 R)
• M15: 20,375,080 km (0.06 R)
• M16: 27,457,044 km (0.108 R)
• M17: 51,855,559 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.8

Radius: 4.2

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 13.47 AU - 19.43 AU

Year: 28522 Days

Day: 22.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,037,591 km

• M1: 52,210 km (0.043 R)
• M2: 269,575 km (0.051 R)
• M3: 906,413 km (0.108 R)
• M4: 1,097,600 km (0.062 R)
• M5: 1,315,115 km (0.111 R)
• M6: 2,093,921 km (0.079 R)
• M7: 2,967,124 km (0.053 R)
• M8: 3,390,337 km (0.094 R)
• M9: 3,580,176 km (0.111 R)
• M10: 6,737,140 km (0.117 R)
• M11: 8,117,629 km (0.059 R)
• M12: 13,725,156 km (0.047 R)
• M13: 15,463,483 km (0.104 R)
• M14: 15,788,559 km (0.101 R)
• M15: 20,130,189 km (0.063 R)
• M16: 22,864,539 km (0.099 R)
• M17: 26,202,217 km (0.074 R)
• M18: 31,795,531 km (0.096 R)
• M19: 39,327,036 km (0.105 R)
• M20: 41,037,987 km (0.087 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 13,020 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit