🌌 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: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.57 AU - 0.65 AU

Year: 170 Days

Day: 40.7 Hours

Environment

Temp: 153 °C

Axial Tilt: 106.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.77 AU - 0.83 AU

Year: 255 Days

Day: 38.4 Hours

Environment

Temp: 133 °C

Axial Tilt: 21.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.55 AU - 2.77 AU

Year: 1546 Days

Day: 25.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.23 AU - 3.59 AU

Year: 1769 Days

Day: 23.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.51 AU - 3.63 AU

Year: 1917 Days

Day: 40.8 Hours

Environment

Temp: -99 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,995,186 km

• M1: 52,958 km (0.107 R)

Asteroid Belt

Center: 4.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.3

Radius: 12.4

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.22 AU - 5.66 AU

Year: 4523 Days

Day: 5.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,995,186 km

• M1: 160,219 km (0.092 R)
• M2: 861,235 km (0.103 R)
• M3: 1,271,731 km (0.112 R)
• M4: 2,108,732 km (0.094 R)
• M5: 2,498,584 km (0.082 R)
• M6: 3,204,985 km (0.095 R)
• M7: 4,134,137 km (0.11 R)
• M8: 5,016,615 km (0.106 R)
• M9: 6,051,383 km (0.086 R)
• M10: 6,750,604 km (0.119 R)
• M11: 7,900,114 km (0.119 R)
• M12: 8,854,548 km (0.064 R)
• M13: 10,584,349 km (0.094 R)
• M14: 11,743,882 km (0.094 R)
• M15: 13,141,275 km (0.055 R)
• M16: 13,666,364 km (0.11 R)
• M17: 15,097,118 km (0.105 R)
• M18: 15,966,880 km (0.111 R)
• M19: 16,625,559 km (0.118 R)
• M20: 17,490,235 km (0.108 R)
• M21: 22,343,190 km (0.057 R)
• M22: 26,337,752 km (0.109 R)
• M23: 27,854,376 km (0.108 R)
• M24: 29,339,583 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.3

Radius: 14.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 10.37 AU - 14.47 AU

Year: 15602 Days

Day: 12.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,995,186 km

• M1: 177,872 km (0.091 R)
• M2: 866,172 km (0.075 R)
• M3: 1,335,909 km (0.086 R)
• M4: 1,901,987 km (0.034 R)
• M5: 2,607,940 km (0.077 R)
• M6: 3,294,594 km (0.103 R)
• M7: 4,637,534 km (0.107 R)
• M8: 6,617,013 km (0.089 R)
• M9: 8,159,666 km (0.096 R)
• M10: 9,586,830 km (0.058 R)
• M11: 11,834,388 km (0.083 R)
• M12: 13,051,217 km (0.105 R)
• M13: 15,597,972 km (0.092 R)
• M14: 17,494,125 km (0.077 R)
• M15: 19,227,066 km (0.093 R)
• M16: 21,320,988 km (0.108 R)
• M17: 22,944,573 km (0.092 R)
• M18: 27,708,667 km (0.114 R)
• M19: 33,094,939 km (0.11 R)
• M20: 34,572,068 km (0.032 R)
• M21: 38,394,742 km (0.088 R)
• M22: 38,891,557 km (0.12 R)
• M23: 40,536,086 km (0.115 R)
• M24: 45,055,737 km (0.075 R)
• M25: 45,747,478 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.8

Radius: 11.6

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 10.7 AU - 14.5 AU

Year: 15942 Days

Day: 6.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 62,995,186 km

• M1: 144,212 km (0.096 R)
• M2: 548,725 km (0.044 R)
• M3: 1,211,144 km (0.066 R)
• M4: 1,774,231 km (0.103 R)
• M5: 3,276,493 km (0.093 R)
• M6: 4,350,456 km (0.106 R)
• M7: 4,969,043 km (0.116 R)
• M8: 5,682,774 km (0.073 R)
• M9: 6,301,960 km (0.082 R)
• M10: 7,767,271 km (0.104 R)
• M11: 9,032,719 km (0.093 R)
• M12: 12,343,919 km (0.06 R)
• M13: 12,921,666 km (0.115 R)
• M14: 13,450,345 km (0.062 R)
• M15: 13,924,719 km (0.117 R)
• M16: 15,710,768 km (0.099 R)
• M17: 19,047,549 km (0.094 R)
• M18: 24,294,096 km (0.043 R)
• M19: 26,237,522 km (0.112 R)
• M20: 26,872,116 km (0.071 R)
• M21: 30,431,498 km (0.083 R)
• M22: 32,083,208 km (0.08 R)
• M23: 33,298,990 km (0.081 R)
• M24: 34,043,090 km (0.113 R)
• M25: 35,564,500 km (0.072 R)
• M26: 43,709,655 km (0.101 R)
• M27: 45,657,869 km (0.088 R)
• M28: 53,016,438 km (0.063 R)
• M29: 55,058,599 km (0.09 R)
• M30: 61,870,687 km (0.11 R)

Kuiper Belt

Range: 30.8 - 48.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 19,745 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit