🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.95 AU - 1.23 AU

Year: 486 Days

Day: 34.3 Hours

Environment

Temp: -61 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.47 AU - 1.47 AU

Year: 762 Days

Day: 46.9 Hours

Environment

Temp: -95 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,702,827 km

• M1: 130,300 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.69 AU - 1.81 AU

Year: 990 Days

Day: 20.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,702,827 km

• M1: 62,532 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.69 AU - 2.71 AU

Year: 1395 Days

Day: 13.2 Hours

Environment

Temp: -116 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.99 AU - 3.05 AU

Year: 1710 Days

Day: 38.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.54 AU - 2.64 AU

Year: 1782 Days

Day: 30.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,702,827 km

• M1: 48,021 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.7

Radius: 11.7

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.06 AU - 4.64 AU

Year: 3229 Days

Day: 8.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,702,827 km

• M1: 145,559 km (0.107 R)
• M2: 1,307,934 km (0.067 R)
• M3: 1,800,560 km (0.103 R)
• M4: 2,952,912 km (0.03 R)
• M5: 4,544,484 km (0.107 R)
• M6: 5,581,197 km (0.11 R)
• M7: 6,316,321 km (0.106 R)
• M8: 7,179,052 km (0.116 R)
• M9: 8,330,357 km (0.114 R)
• M10: 9,445,011 km (0.119 R)
• M11: 10,868,136 km (0.063 R)
• M12: 11,923,549 km (0.064 R)
• M13: 12,854,347 km (0.109 R)
• M14: 16,326,962 km (0.11 R)
• M15: 18,067,533 km (0.118 R)
• M16: 19,169,471 km (0.062 R)
• M17: 20,905,704 km (0.079 R)
• M18: 23,739,237 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.7

Radius: 13.8

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.5 AU - 5.12 AU

Year: 3825 Days

Day: 8.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,702,827 km

• M1: 172,935 km (0.032 R)
• M2: 652,995 km (0.075 R)
• M3: 1,144,274 km (0.084 R)
• M4: 1,693,897 km (0.119 R)
• M5: 2,642,198 km (0.118 R)
• M6: 5,051,172 km (0.057 R)
• M7: 5,838,954 km (0.119 R)
• M8: 6,884,943 km (0.062 R)
• M9: 11,694,963 km (0.115 R)
• M10: 13,923,971 km (0.118 R)
• M11: 15,113,424 km (0.093 R)
• M12: 19,691,717 km (0.116 R)
• M13: 20,871,297 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.7

Radius: 12.4

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 6.33 AU - 9.17 AU

Year: 9223 Days

Day: 10.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,702,827 km

• M1: 154,684 km (0.104 R)
• M2: 555,756 km (0.051 R)
• M3: 3,398,265 km (0.079 R)
• M4: 5,020,654 km (0.111 R)
• M5: 5,677,389 km (0.085 R)
• M6: 7,003,873 km (0.067 R)
• M7: 7,967,882 km (0.103 R)
• M8: 12,686,498 km (0.119 R)
• M9: 13,990,393 km (0.082 R)

Planet 10 - Gas Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.6

Radius: 8.3

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.99 AU - 8.07 AU

Year: 9728 Days

Day: 5.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,702,827 km

• M1: 110,553 km (0.103 R)
• M2: 384,167 km (0.038 R)
• M3: 1,093,710 km (0.109 R)
• M4: 1,478,027 km (0.063 R)
• M5: 1,902,586 km (0.1 R)
• M6: 3,063,316 km (0.106 R)
• M7: 5,321,495 km (0.118 R)
• M8: 6,693,308 km (0.111 R)
• M9: 11,534,744 km (0.036 R)
• M10: 12,724,196 km (0.085 R)
• M11: 13,561,346 km (0.119 R)
• M12: 14,307,840 km (0.114 R)
• M13: 15,081,261 km (0.119 R)
• M14: 17,934,840 km (0.116 R)
• M15: 22,132,257 km (0.083 R)
• M16: 28,319,027 km (0.112 R)
• M17: 29,229,180 km (0.116 R)
• M18: 36,035,883 km (0.111 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 533 - 12,338 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit