🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.45 AU - 0.61 AU

Year: 249 Days

Day: 40 Hours

Environment

Temp: -129 °C

Axial Tilt: 49.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.3

Radius: 9.4

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.69 AU - 0.69 AU

Year: 370 Days

Day: 13.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,536,887 km

• M1: 117,734 km (0.098 R)
• M2: 414,984 km (0.099 R)
• M3: 727,046 km (0.094 R)
• M4: 1,026,241 km (0.04 R)
• M5: 1,435,242 km (0.12 R)
• M6: 1,943,426 km (0.079 R)
• M7: 3,012,153 km (0.103 R)
• M8: 4,530,721 km (0.044 R)
• M9: 4,833,806 km (0.108 R)
• M10: 5,165,914 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.2

Radius: 14.5

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.3 AU - 2.58 AU

Year: 2461 Days

Day: 7.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,536,887 km

• M1: 180,415 km (0.095 R)
• M2: 638,783 km (0.114 R)
• M3: 1,234,033 km (0.098 R)
• M4: 1,706,613 km (0.109 R)
• M5: 2,328,790 km (0.101 R)
• M6: 3,181,648 km (0.118 R)
• M7: 3,885,356 km (0.096 R)
• M8: 5,226,501 km (0.077 R)
• M9: 6,106,435 km (0.12 R)
• M10: 7,699,802 km (0.081 R)
• M11: 8,256,606 km (0.079 R)
• M12: 8,708,242 km (0.095 R)
• M13: 9,244,550 km (0.047 R)
• M14: 9,838,454 km (0.101 R)
• M15: 11,258,885 km (0.112 R)
• M16: 11,774,998 km (0.084 R)
• M17: 12,515,807 km (0.094 R)
• M18: 13,507,341 km (0.032 R)
• M19: 15,259,581 km (0.069 R)
• M20: 15,794,094 km (0.085 R)
• M21: 17,003,593 km (0.115 R)
• M22: 17,790,478 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931

Radius: 11.7

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.46 AU - 3.08 AU

Year: 2977 Days

Day: 5.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,536,887 km

• M1: 145,559 km (0.107 R)
• M2: 517,459 km (0.11 R)
• M3: 1,128,417 km (0.108 R)
• M4: 1,863,690 km (0.087 R)
• M5: 2,376,063 km (0.116 R)
• M6: 2,998,839 km (0.059 R)
• M7: 3,396,470 km (0.061 R)
• M8: 3,974,666 km (0.117 R)
• M9: 5,861,394 km (0.063 R)
• M10: 6,786,657 km (0.094 R)
• M11: 7,477,500 km (0.114 R)
• M12: 10,391,218 km (0.062 R)
• M13: 10,802,013 km (0.042 R)
• M14: 11,266,515 km (0.069 R)
• M15: 11,965,885 km (0.093 R)
• M16: 12,927,650 km (0.115 R)
• M17: 16,177,215 km (0.112 R)
• M18: 19,622,753 km (0.115 R)
• M19: 21,549,872 km (0.059 R)
• M20: 22,491,142 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.2

Radius: 8.3

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.23 AU - 3.35 AU

Year: 3009 Days

Day: 6.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,536,887 km

• M1: 107,561 km (0.109 R)
• M2: 495,019 km (0.039 R)
• M3: 834,756 km (0.115 R)
• M4: 2,355,418 km (0.098 R)
• M5: 2,694,407 km (0.086 R)
• M6: 3,746,080 km (0.085 R)
• M7: 4,389,351 km (0.112 R)
• M8: 5,031,276 km (0.119 R)
• M9: 6,120,049 km (0.077 R)
• M10: 6,609,832 km (0.11 R)
• M11: 7,692,323 km (0.115 R)
• M12: 8,136,628 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.2

Radius: 13.2

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.18 AU - 4.82 AU

Year: 5165 Days

Day: 9.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,536,887 km

• M1: 164,258 km (0.038 R)
• M2: 741,407 km (0.086 R)
• M3: 2,217,489 km (0.117 R)
• M4: 3,217,850 km (0.092 R)
• M5: 4,109,304 km (0.099 R)
• M6: 5,355,305 km (0.098 R)
• M7: 6,380,798 km (0.093 R)
• M8: 6,839,465 km (0.112 R)
• M9: 7,355,428 km (0.118 R)
• M10: 8,197,066 km (0.074 R)
• M11: 10,924,983 km (0.069 R)
• M12: 11,728,174 km (0.065 R)
• M13: 13,773,626 km (0.026 R)
• M14: 16,287,319 km (0.027 R)
• M15: 19,841,764 km (0.098 R)
• M16: 21,181,413 km (0.118 R)
• M17: 22,580,452 km (0.101 R)
• M18: 23,187,670 km (0.108 R)
• M19: 24,040,378 km (0.107 R)
• M20: 24,673,476 km (0.063 R)
• M21: 27,062,404 km (0.112 R)
• M22: 30,512,879 km (0.026 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: 268 - 17,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit