🌌 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: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.44 AU - 0.6 AU

Year: 136 Days

Day: 25.2 Hours

Environment

Temp: 268 °C

Axial Tilt: 16.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.75 AU - 0.77 AU

Year: 240 Days

Day: 20.3 Hours

Environment

Temp: 160 °C

Axial Tilt: 28.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.25 AU - 1.49 AU

Year: 580 Days

Day: 32.9 Hours

Environment

Temp: -14 °C

Axial Tilt: 7.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.22 AU - 1.9 AU

Year: 705 Days

Day: 41.8 Hours

Environment

Temp: -31 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.1

Radius: 8.1

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.08 AU - 8.96 AU

Year: 7458 Days

Day: 5.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,063,204 km

• M1: 100,979 km (0.11 R)
• M2: 603,927 km (0.101 R)
• M3: 995,873 km (0.119 R)
• M4: 1,501,364 km (0.094 R)
• M5: 2,042,609 km (0.119 R)
• M6: 2,299,768 km (0.047 R)
• M7: 2,707,721 km (0.053 R)
• M8: 3,142,602 km (0.082 R)
• M9: 4,382,619 km (0.106 R)
• M10: 6,448,566 km (0.067 R)
• M11: 6,723,975 km (0.088 R)
• M12: 7,597,926 km (0.1 R)
• M13: 8,586,768 km (0.045 R)
• M14: 9,047,978 km (0.105 R)
• M15: 9,350,017 km (0.091 R)
• M16: 9,974,438 km (0.11 R)
• M17: 12,432,630 km (0.09 R)
• M18: 12,752,470 km (0.112 R)
• M19: 13,632,405 km (0.104 R)
• M20: 15,207,970 km (0.064 R)
• M21: 15,945,637 km (0.111 R)
• M22: 16,450,679 km (0.119 R)
• M23: 20,510,018 km (0.058 R)
• M24: 26,136,244 km (0.097 R)
• M25: 31,219,131 km (0.115 R)
• M26: 32,209,020 km (0.097 R)
• M27: 33,939,568 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.1

Radius: 13.6

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 7.82 AU - 9.12 AU

Year: 8915 Days

Day: 12.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,063,204 km

• M1: 169,943 km (0.119 R)
• M2: 707,149 km (0.08 R)
• M3: 1,276,219 km (0.114 R)
• M4: 1,773,333 km (0.102 R)
• M5: 3,026,515 km (0.093 R)
• M6: 3,525,872 km (0.087 R)
• M7: 4,805,233 km (0.101 R)
• M8: 5,614,558 km (0.057 R)
• M9: 6,583,353 km (0.026 R)
• M10: 7,778,491 km (0.085 R)
• M11: 8,596,043 km (0.068 R)
• M12: 10,306,695 km (0.056 R)
• M13: 10,743,221 km (0.101 R)
• M14: 11,549,853 km (0.112 R)
• M15: 16,926,999 km (0.043 R)
• M16: 18,299,859 km (0.113 R)
• M17: 20,496,703 km (0.044 R)
• M18: 21,423,013 km (0.07 R)
• M19: 23,028,348 km (0.052 R)
• M20: 23,692,563 km (0.105 R)
• M21: 26,477,776 km (0.12 R)
• M22: 27,391,221 km (0.116 R)
• M23: 29,088,109 km (0.071 R)
• M24: 34,168,752 km (0.096 R)
• M25: 38,753,478 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.8

Radius: 7.1

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 11.48 AU - 15.72 AU

Year: 18138 Days

Day: 21.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,063,204 km

• M1: 88,412 km (0.106 R)
• M2: 313,408 km (0.057 R)
• M3: 754,272 km (0.113 R)
• M4: 1,066,483 km (0.118 R)
• M5: 1,697,337 km (0.114 R)
• M6: 2,335,821 km (0.035 R)
• M7: 2,615,719 km (0.061 R)
• M8: 2,895,467 km (0.048 R)
• M9: 4,485,543 km (0.07 R)
• M10: 5,280,506 km (0.079 R)
• M11: 5,729,150 km (0.074 R)
• M12: 6,430,464 km (0.047 R)
• M13: 9,969,202 km (0.11 R)
• M14: 10,871,726 km (0.038 R)
• M15: 13,270,977 km (0.107 R)
• M16: 14,296,171 km (0.115 R)
• M17: 16,358,826 km (0.079 R)
• M18: 26,699,480 km (0.096 R)
• M19: 29,592,553 km (0.109 R)
• M20: 33,147,298 km (0.061 R)
• M21: 33,494,365 km (0.108 R)
• M22: 36,605,552 km (0.11 R)

Kuiper Belt

Range: 30.3 - 45.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 14,388 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit