🌌 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: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.47 AU - 0.55 AU

Year: 130 Days

Day: 13.7 Hours

Environment

Temp: 233 °C

Axial Tilt: 16.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,513,013 km

• M1: 40,840 km (0.11 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.42 AU - 0.64 AU

Year: 138 Days

Day: 37.7 Hours

Environment

Temp: 263 °C

Axial Tilt: 3.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,513,013 km

• M1: 18,251 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.83 AU - 1.11 AU

Year: 341 Days

Day: 30.1 Hours

Environment

Temp: 129 °C

Axial Tilt: 37.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2 AU - 2.22 AU

Year: 1092 Days

Day: 19.2 Hours

Environment

Temp: -70 °C

Axial Tilt: 44.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.55 AU - 4.15 AU

Year: 2186 Days

Day: 29.1 Hours

Environment

Temp: -99 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,513,013 km

• M1: 2,171,712 km (0.12 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.25 AU - 4.67 AU

Year: 3357 Days

Day: 15 Hours

Environment

Temp: -128 °C

Axial Tilt: 28.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.9

Radius: 14.7

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.16 AU - 5.64 AU

Year: 4473 Days

Day: 9.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,513,013 km

• M1: 184,753 km (0.096 R)
• M2: 750,084 km (0.085 R)
• M3: 1,290,730 km (0.087 R)
• M4: 2,022,713 km (0.108 R)
• M5: 2,529,251 km (0.096 R)
• M6: 3,121,210 km (0.103 R)
• M7: 3,709,578 km (0.103 R)
• M8: 4,500,502 km (0.062 R)
• M9: 6,120,348 km (0.103 R)
• M10: 7,078,522 km (0.03 R)
• M11: 7,940,805 km (0.05 R)
• M12: 8,941,315 km (0.057 R)
• M13: 11,519,934 km (0.077 R)
• M14: 12,980,308 km (0.117 R)
• M15: 13,616,249 km (0.071 R)
• M16: 14,368,427 km (0.103 R)
• M17: 16,528,022 km (0.055 R)
• M18: 17,768,188 km (0.09 R)
• M19: 18,439,583 km (0.102 R)
• M20: 19,127,733 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810

Radius: 11.6

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.12 AU - 10.14 AU

Year: 8263 Days

Day: 6.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,513,013 km

• M1: 149,149 km (0.087 R)
• M2: 533,167 km (0.038 R)
• M3: 1,240,615 km (0.048 R)
• M4: 1,657,395 km (0.026 R)
• M5: 2,643,694 km (0.086 R)
• M6: 3,278,288 km (0.113 R)
• M7: 4,792,667 km (0.119 R)
• M8: 5,188,353 km (0.091 R)
• M9: 5,738,724 km (0.031 R)
• M10: 6,399,647 km (0.104 R)
• M11: 8,513,914 km (0.093 R)
• M12: 8,959,865 km (0.082 R)
• M13: 11,971,420 km (0.044 R)
• M14: 13,227,444 km (0.113 R)
• M15: 14,194,594 km (0.091 R)
• M16: 15,469,317 km (0.1 R)
• M17: 26,418,685 km (0.116 R)
• M18: 32,038,778 km (0.071 R)
• M19: 39,874,864 km (0.095 R)
• M20: 41,378,771 km (0.075 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.4

Radius: 9.4

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.27 AU - 9.17 AU

Year: 8400 Days

Day: 14.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,513,013 km

• M1: 116,986 km (0.062 R)
• M2: 596,148 km (0.097 R)
• M3: 971,489 km (0.074 R)
• M4: 2,275,683 km (0.057 R)
• M5: 3,359,370 km (0.112 R)
• M6: 3,796,495 km (0.1 R)
• M7: 4,494,818 km (0.112 R)
• M8: 5,181,771 km (0.11 R)
• M9: 5,902,833 km (0.114 R)
• M10: 6,504,515 km (0.082 R)
• M11: 6,801,617 km (0.051 R)
• M12: 7,185,635 km (0.045 R)
• M13: 7,543,622 km (0.069 R)
• M14: 7,997,353 km (0.071 R)
• M15: 8,513,016 km (0.102 R)
• M16: 9,421,674 km (0.117 R)
• M17: 9,802,700 km (0.076 R)
• M18: 10,243,565 km (0.028 R)
• M19: 12,478,706 km (0.105 R)
• M20: 16,687,642 km (0.059 R)
• M21: 20,622,964 km (0.113 R)
• M22: 23,885,993 km (0.088 R)
• M23: 25,963,608 km (0.053 R)
• M24: 28,355,379 km (0.059 R)
• M25: 38,180,967 km (0.056 R)
• M26: 39,765,059 km (0.117 R)
• M27: 42,030,270 km (0.117 R)
• M28: 44,247,161 km (0.068 R)

Kuiper Belt

Range: 30.8 - 60.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 20,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit