🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.47 AU - 0.69 AU

Year: 285 Days

Day: 21.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,304,407 km

• M1: 601,234 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.54 AU - 0.64 AU

Year: 293 Days

Day: 39.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.9

Radius: 12.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.67 AU - 0.99 AU

Year: 488 Days

Day: 7.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,304,407 km

• M1: 150,795 km (0.099 R)
• M2: 535,112 km (0.11 R)
• M3: 912,098 km (0.108 R)
• M4: 1,708,557 km (0.031 R)
• M5: 2,861,807 km (0.087 R)
• M6: 3,251,211 km (0.095 R)
• M7: 3,701,650 km (0.095 R)
• M8: 4,235,565 km (0.115 R)
• M9: 4,729,387 km (0.094 R)
• M10: 5,196,731 km (0.119 R)
• M11: 5,609,771 km (0.107 R)
• M12: 6,026,849 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.3

Radius: 12.4

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.47 AU - 1.63 AU

Year: 1246 Days

Day: 12.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,304,407 km

• M1: 154,235 km (0.103 R)
• M2: 588,069 km (0.1 R)
• M3: 976,575 km (0.099 R)
• M4: 1,674,299 km (0.09 R)
• M5: 2,081,355 km (0.116 R)
• M6: 2,467,318 km (0.107 R)
• M7: 3,279,784 km (0.118 R)
• M8: 4,083,872 km (0.067 R)
• M9: 4,638,282 km (0.114 R)
• M10: 5,348,273 km (0.103 R)
• M11: 6,199,785 km (0.094 R)
• M12: 6,959,891 km (0.104 R)
• M13: 7,563,070 km (0.077 R)
• M14: 8,636,135 km (0.081 R)
• M15: 9,302,295 km (0.061 R)
• M16: 9,775,922 km (0.065 R)
• M17: 11,258,885 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161

Radius: 14.8

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.45 AU - 1.73 AU

Year: 1295 Days

Day: 12 Hours

Environment

Temp: -190 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,304,407 km

• M1: 185,801 km (0.1 R)
• M2: 723,455 km (0.091 R)
• M3: 1,192,893 km (0.06 R)
• M4: 1,670,260 km (0.093 R)
• M5: 2,674,212 km (0.088 R)
• M6: 3,152,775 km (0.099 R)
• M7: 3,716,011 km (0.067 R)
• M8: 4,545,980 km (0.113 R)
• M9: 5,514,626 km (0.084 R)
• M10: 6,067,540 km (0.108 R)
• M11: 6,862,503 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.9

Radius: 12.8

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.87 AU - 3.09 AU

Year: 2522 Days

Day: 7.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,304,407 km

• M1: 159,322 km (0.118 R)
• M2: 570,865 km (0.086 R)
• M3: 1,360,593 km (0.095 R)
• M4: 1,888,224 km (0.096 R)
• M5: 2,467,467 km (0.09 R)
• M6: 3,001,831 km (0.075 R)
• M7: 5,388,814 km (0.103 R)
• M8: 6,784,862 km (0.111 R)
• M9: 7,507,569 km (0.058 R)
• M10: 9,038,853 km (0.117 R)
• M11: 9,522,503 km (0.075 R)
• M12: 10,655,108 km (0.055 R)
• M13: 14,129,369 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.3

Radius: 14.2

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.18 AU - 5.04 AU

Year: 5380 Days

Day: 8.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,304,407 km

• M1: 176,675 km (0.094 R)
• M2: 736,470 km (0.095 R)
• M3: 1,624,633 km (0.093 R)
• M4: 2,201,482 km (0.069 R)
• M5: 4,655,037 km (0.083 R)
• M6: 5,276,766 km (0.11 R)
• M7: 6,374,515 km (0.116 R)
• M8: 7,243,379 km (0.047 R)
• M9: 8,712,430 km (0.118 R)
• M10: 9,741,963 km (0.112 R)
• M11: 12,233,964 km (0.041 R)
• M12: 14,904,436 km (0.096 R)
• M13: 15,970,769 km (0.118 R)
• M14: 17,147,506 km (0.063 R)
• M15: 18,444,520 km (0.092 R)
• M16: 20,207,082 km (0.119 R)
• M17: 23,168,222 km (0.028 R)
• M18: 24,906,998 km (0.039 R)
• M19: 26,812,726 km (0.1 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 479 - 20,076 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit