🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.49 AU - 0.59 AU

Year: 256 Days

Day: 43 Hours

Environment

Temp: -122 °C

Axial Tilt: 13.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,291,167 km

• M1: 487,988 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.58 AU - 0.62 AU

Year: 300 Days

Day: 31.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.1

Radius: 9.7

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.69 AU - 0.71 AU

Year: 378 Days

Day: 14.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,291,167 km

• M1: 120,576 km (0.116 R)
• M2: 458,517 km (0.071 R)
• M3: 913,893 km (0.081 R)
• M4: 1,370,915 km (0.115 R)
• M5: 1,741,918 km (0.095 R)
• M6: 2,250,550 km (0.112 R)
• M7: 2,609,585 km (0.038 R)
• M8: 2,995,847 km (0.106 R)
• M9: 3,420,256 km (0.108 R)
• M10: 3,780,637 km (0.092 R)
• M11: 4,390,249 km (0.102 R)
• M12: 4,801,643 km (0.106 R)
• M13: 5,158,883 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.3

Radius: 11.2

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.04 AU - 1.12 AU

Year: 725 Days

Day: 5.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,291,167 km

• M1: 139,425 km (0.068 R)
• M2: 623,374 km (0.037 R)
• M3: 1,052,271 km (0.055 R)
• M4: 1,484,609 km (0.105 R)
• M5: 1,911,711 km (0.097 R)
• M6: 2,472,404 km (0.079 R)
• M7: 3,152,626 km (0.084 R)
• M8: 3,658,865 km (0.104 R)
• M9: 4,129,200 km (0.098 R)
• M10: 4,952,288 km (0.086 R)
• M11: 6,923,240 km (0.116 R)
• M12: 7,333,138 km (0.081 R)
• M13: 7,690,976 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.9

Radius: 9.5

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.15 AU - 1.55 AU

Year: 1013 Days

Day: 8.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,291,167 km

• M1: 118,631 km (0.116 R)
• M2: 464,950 km (0.102 R)
• M3: 853,306 km (0.098 R)
• M4: 1,364,482 km (0.085 R)
• M5: 1,749,098 km (0.111 R)
• M6: 2,147,029 km (0.074 R)
• M7: 2,452,358 km (0.114 R)
• M8: 2,857,469 km (0.1 R)
• M9: 3,346,504 km (0.071 R)
• M10: 3,702,846 km (0.117 R)
• M11: 4,364,069 km (0.117 R)
• M12: 5,101,886 km (0.09 R)
• M13: 5,538,113 km (0.104 R)
• M14: 6,279,819 km (0.095 R)
• M15: 7,020,179 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29

Radius: 9.4

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.25 AU - 1.49 AU

Year: 1035 Days

Day: 13.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 175.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,291,167 km

• M1: 117,883 km (0.057 R)
• M2: 511,326 km (0.119 R)
• M3: 1,004,550 km (0.064 R)
• M4: 1,314,217 km (0.095 R)
• M5: 2,330,585 km (0.109 R)
• M6: 2,822,313 km (0.039 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.9

Radius: 14

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 5.09 AU - 5.27 AU

Year: 7612 Days

Day: 10.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,291,167 km

• M1: 175,927 km (0.087 R)
• M2: 614,698 km (0.087 R)
• M3: 1,349,971 km (0.082 R)
• M4: 2,119,503 km (0.112 R)
• M5: 2,933,614 km (0.064 R)
• M6: 5,246,846 km (0.111 R)
• M7: 6,666,231 km (0.081 R)
• M8: 7,505,325 km (0.098 R)
• M9: 9,722,216 km (0.082 R)
• M10: 11,266,365 km (0.087 R)
• M11: 11,906,195 km (0.071 R)
• M12: 12,457,763 km (0.077 R)
• M13: 14,093,466 km (0.033 R)
• M14: 14,836,818 km (0.054 R)
• M15: 16,133,682 km (0.032 R)
• M16: 16,809,864 km (0.079 R)
• M17: 17,294,411 km (0.095 R)
• M18: 22,666,621 km (0.083 R)
• M19: 23,343,850 km (0.119 R)
• M20: 24,034,544 km (0.077 R)
• M21: 26,096,601 km (0.053 R)
• M22: 27,312,981 km (0.107 R)
• M23: 27,790,796 km (0.115 R)
• M24: 31,397,302 km (0.114 R)
• M25: 37,375,532 km (0.108 R)
• M26: 39,892,067 km (0.105 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: 441 - 13,119 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit