🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.51 AU - 0.71 AU

Year: 313 Days

Day: 38.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.8

Radius: 13.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.62 AU - 0.74 AU

Year: 368 Days

Day: 9.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,297,035 km

• M1: 165,455 km (0.096 R)
• M2: 1,002,755 km (0.119 R)
• M3: 1,571,526 km (0.089 R)
• M4: 2,036,925 km (0.115 R)
• M5: 2,507,111 km (0.096 R)
• M6: 3,169,829 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.3

Radius: 13.3

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.73 AU - 1.19 AU

Year: 617 Days

Day: 8.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,297,035 km

• M1: 165,455 km (0.082 R)
• M2: 715,676 km (0.095 R)
• M3: 1,132,456 km (0.049 R)
• M4: 1,625,082 km (0.043 R)
• M5: 2,614,821 km (0.106 R)
• M6: 3,117,470 km (0.11 R)
• M7: 3,736,057 km (0.104 R)
• M8: 4,151,341 km (0.088 R)
• M9: 4,965,004 km (0.093 R)
• M10: 5,502,658 km (0.104 R)
• M11: 6,043,006 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.2

Radius: 13.3

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.89 AU - 1.25 AU

Year: 726 Days

Day: 9.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,297,035 km

• M1: 168,447 km (0.098 R)
• M2: 618,438 km (0.074 R)
• M3: 1,135,597 km (0.084 R)
• M4: 1,836,613 km (0.113 R)
• M5: 2,542,865 km (0.03 R)
• M6: 3,801,282 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.6

Radius: 10.5

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.12 AU - 2.26 AU

Year: 2126 Days

Day: 11.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,297,035 km

• M1: 130,599 km (0.056 R)
• M2: 490,382 km (0.103 R)
• M3: 1,050,177 km (0.092 R)
• M4: 1,858,754 km (0.109 R)
• M5: 3,008,712 km (0.082 R)
• M6: 4,018,648 km (0.056 R)
• M7: 4,686,602 km (0.067 R)
• M8: 5,081,391 km (0.106 R)
• M9: 6,374,515 km (0.102 R)
• M10: 7,966,685 km (0.099 R)
• M11: 9,529,684 km (0.076 R)
• M12: 10,754,292 km (0.091 R)
• M13: 11,326,653 km (0.111 R)
• M14: 12,995,417 km (0.096 R)
• M15: 14,180,083 km (0.101 R)
• M16: 16,713,074 km (0.095 R)
• M17: 17,325,827 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.6

Radius: 8.1

Gravity: 14.37 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.44 AU - 2.68 AU

Year: 2687 Days

Day: 12.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,297,035 km

• M1: 100,829 km (0.103 R)
• M2: 359,184 km (0.102 R)
• M3: 634,145 km (0.112 R)
• M4: 984,803 km (0.1 R)
• M5: 1,247,646 km (0.065 R)
• M6: 1,657,544 km (0.092 R)
• M7: 2,009,099 km (0.086 R)
• M8: 2,280,021 km (0.055 R)
• M9: 2,606,444 km (0.076 R)
• M10: 4,434,978 km (0.096 R)
• M11: 5,092,312 km (0.046 R)
• M12: 5,785,997 km (0.092 R)
• M13: 7,487,673 km (0.073 R)
• M14: 8,911,545 km (0.031 R)
• M15: 9,801,952 km (0.096 R)
• M16: 10,709,562 km (0.053 R)
• M17: 12,691,285 km (0.089 R)
• M18: 13,768,689 km (0.062 R)
• M19: 14,059,507 km (0.12 R)
• M20: 15,007,509 km (0.075 R)
• M21: 18,222,965 km (0.115 R)
• M22: 19,652,971 km (0.077 R)
• M23: 20,208,129 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.9

Radius: 8.7

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.97 AU - 3.35 AU

Year: 3685 Days

Day: 14.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,297,035 km

• M1: 108,309 km (0.083 R)
• M2: 416,181 km (0.066 R)
• M3: 1,187,957 km (0.115 R)
• M4: 1,835,865 km (0.056 R)
• M5: 2,614,522 km (0.106 R)
• M6: 2,975,502 km (0.071 R)
• M7: 4,124,114 km (0.104 R)
• M8: 6,923,539 km (0.083 R)
• M9: 7,708,180 km (0.105 R)
• M10: 8,044,326 km (0.095 R)
• M11: 9,213,434 km (0.117 R)
• M12: 10,089,479 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855

Radius: 11.6

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.33 AU - 3.65 AU

Year: 4277 Days

Day: 12.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,297,035 km

• M1: 158,125 km (0.119 R)
• M2: 532,269 km (0.091 R)
• M3: 1,269,936 km (0.086 R)
• M4: 1,681,630 km (0.064 R)
• M5: 2,168,272 km (0.119 R)
• M6: 2,872,279 km (0.089 R)
• M7: 3,680,108 km (0.118 R)
• M8: 4,658,627 km (0.119 R)
• M9: 5,861,843 km (0.071 R)
• M10: 6,568,095 km (0.12 R)
• M11: 7,750,666 km (0.082 R)
• M12: 8,834,053 km (0.033 R)
• M13: 10,229,652 km (0.09 R)
• M14: 11,814,641 km (0.101 R)
• M15: 16,573,649 km (0.113 R)
• M16: 17,361,581 km (0.088 R)
• M17: 20,696,117 km (0.087 R)
• M18: 25,775,863 km (0.086 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 16,533 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit