🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.85 AU - 0.93 AU

Year: 296 Days

Day: 47.3 Hours

Environment

Temp: 162 °C

Axial Tilt: 29.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.06

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.99 AU - 0.99 AU

Year: 348 Days

Day: 12.1 Hours

Environment

Temp: 140 °C

Axial Tilt: 1.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 88,541,128 km

• M1: 595,400 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.77 AU - 1.25 AU

Year: 358 Days

Day: 29.2 Hours

Environment

Temp: 82 °C

Axial Tilt: 9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 88,541,128 km

• M1: 26,479 km (0.078 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.98 AU - 1.12 AU

Year: 380 Days

Day: 37.8 Hours

Environment

Temp: 109 °C

Axial Tilt: 127.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.99 AU - 1.25 AU

Year: 419 Days

Day: 30.8 Hours

Environment

Temp: 19 °C

Axial Tilt: 133.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 88,541,128 km

• M1: 50,115 km (0.107 R)
• M2: 282,291 km (0.098 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.96 AU - 1.38 AU

Year: 447 Days

Day: 17.6 Hours

Environment

Temp: 35 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 7 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 11.7

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.24 AU - 10.64 AU

Year: 10241 Days

Day: 10.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,541,128 km

• M1: 145,559 km (0.111 R)
• M2: 562,039 km (0.056 R)
• M3: 1,793,529 km (0.114 R)
• M4: 2,521,173 km (0.066 R)
• M5: 2,981,934 km (0.109 R)
• M6: 3,374,479 km (0.108 R)
• M7: 4,362,124 km (0.051 R)
• M8: 6,348,784 km (0.101 R)
• M9: 6,769,453 km (0.047 R)
• M10: 8,144,407 km (0.12 R)
• M11: 9,529,833 km (0.064 R)
• M12: 10,791,990 km (0.106 R)
• M13: 11,345,802 km (0.086 R)
• M14: 13,225,349 km (0.089 R)
• M15: 14,239,324 km (0.108 R)
• M16: 16,301,530 km (0.057 R)
• M17: 18,621,195 km (0.113 R)
• M18: 22,463,915 km (0.068 R)
• M19: 23,367,636 km (0.086 R)
• M20: 26,389,513 km (0.107 R)
• M21: 27,141,691 km (0.101 R)
• M22: 30,476,078 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.8

Radius: 11.5

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 8.26 AU - 10.68 AU

Year: 10290 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 88,541,128 km

• M1: 143,764 km (0.087 R)
• M2: 520,002 km (0.049 R)
• M3: 1,229,395 km (0.056 R)
• M4: 2,141,344 km (0.097 R)
• M5: 2,598,365 km (0.113 R)
• M6: 3,478,898 km (0.048 R)
• M7: 7,964,740 km (0.09 R)
• M8: 8,756,412 km (0.053 R)
• M9: 10,673,359 km (0.049 R)
• M10: 11,401,452 km (0.059 R)
• M11: 16,905,307 km (0.119 R)
• M12: 17,271,972 km (0.074 R)
• M13: 19,450,715 km (0.045 R)
• M14: 21,520,102 km (0.108 R)
• M15: 22,460,924 km (0.116 R)
• M16: 26,582,494 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 893.1

Radius: 6.5

Gravity: 21.14 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 14.17 AU - 17.25 AU

Year: 21987 Days

Day: 20.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 88,541,128 km

• M1: 88,412 km (0.105 R)
• M2: 318,344 km (0.054 R)
• M3: 2,517,283 km (0.102 R)
• M4: 5,409,309 km (0.083 R)
• M5: 6,871,479 km (0.066 R)
• M6: 9,561,249 km (0.079 R)
• M7: 10,809,942 km (0.115 R)
• M8: 11,338,621 km (0.097 R)
• M9: 11,609,393 km (0.064 R)
• M10: 14,638,451 km (0.119 R)
• M11: 17,700,121 km (0.105 R)
• M12: 20,159,659 km (0.112 R)
• M13: 40,152,068 km (0.12 R)
• M14: 46,399,276 km (0.104 R)
• M15: 48,144,784 km (0.096 R)
• M16: 48,499,031 km (0.045 R)
• M17: 53,264,172 km (0.093 R)
• M18: 59,953,890 km (0.119 R)
• M19: 62,232,565 km (0.105 R)
• M20: 63,925,713 km (0.073 R)
• M21: 66,522,433 km (0.11 R)
• M22: 69,639,903 km (0.097 R)
• M23: 72,156,588 km (0.11 R)

Kuiper Belt

Range: 31.1 - 47.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 17,651 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit