🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 19 Hours

Environment

Temp: -119 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,204,475 km

• M1: 11,369 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.3

Radius: 12.7

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.53 AU - 0.85 AU

Year: 376 Days

Day: 8 Hours

Environment

Temp: -141 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,204,475 km

• M1: 157,975 km (0.09 R)
• M2: 647,908 km (0.086 R)
• M3: 1,078,900 km (0.091 R)
• M4: 1,575,864 km (0.111 R)
• M5: 2,088,985 km (0.092 R)
• M6: 2,887,688 km (0.044 R)
• M7: 3,317,931 km (0.049 R)
• M8: 3,740,695 km (0.111 R)
• M9: 4,608,063 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.5

Radius: 13.7

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.72 AU - 1 AU

Year: 523 Days

Day: 13.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,204,475 km

• M1: 170,542 km (0.055 R)
• M2: 663,616 km (0.044 R)
• M3: 1,274,125 km (0.11 R)
• M4: 1,757,177 km (0.064 R)
• M5: 2,619,758 km (0.075 R)
• M6: 3,542,926 km (0.073 R)
• M7: 4,228,982 km (0.038 R)
• M8: 5,482,912 km (0.114 R)
• M9: 6,178,242 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.3

Radius: 13

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.76 AU - 1.26 AU

Year: 666 Days

Day: 13.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,204,475 km

• M1: 161,715 km (0.088 R)
• M2: 569,519 km (0.064 R)
• M3: 994,676 km (0.095 R)
• M4: 1,471,744 km (0.073 R)
• M5: 2,278,076 km (0.059 R)
• M6: 3,036,388 km (0.088 R)
• M7: 3,565,665 km (0.087 R)
• M8: 4,027,474 km (0.057 R)
• M9: 4,544,484 km (0.07 R)
• M10: 5,206,604 km (0.082 R)
• M11: 6,006,355 km (0.098 R)
• M12: 6,989,661 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.1

Radius: 12.5

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.25 AU - 1.35 AU

Year: 972 Days

Day: 5.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,204,475 km

• M1: 155,432 km (0.079 R)
• M2: 588,668 km (0.04 R)
• M3: 1,189,153 km (0.087 R)
• M4: 1,600,548 km (0.051 R)
• M5: 2,235,890 km (0.063 R)
• M6: 2,915,363 km (0.062 R)
• M7: 3,713,169 km (0.118 R)
• M8: 4,147,302 km (0.103 R)
• M9: 4,615,543 km (0.077 R)
• M10: 5,334,361 km (0.119 R)
• M11: 7,311,446 km (0.073 R)
• M12: 7,945,592 km (0.082 R)
• M13: 9,352,859 km (0.045 R)
• M14: 10,070,031 km (0.103 R)
• M15: 10,855,719 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.7

Radius: 14.1

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.47 AU - 1.77 AU

Year: 1353 Days

Day: 6 Hours

Environment

Temp: -180 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,204,475 km

• M1: 175,329 km (0.117 R)
• M2: 629,209 km (0.107 R)
• M3: 1,204,861 km (0.08 R)
• M4: 1,828,236 km (0.035 R)
• M5: 2,472,703 km (0.116 R)
• M6: 2,946,779 km (0.06 R)
• M7: 3,840,327 km (0.074 R)
• M8: 5,319,401 km (0.118 R)
• M9: 6,188,714 km (0.116 R)
• M10: 6,819,419 km (0.044 R)
• M11: 8,942,961 km (0.087 R)
• M12: 10,041,757 km (0.029 R)
• M13: 10,640,897 km (0.095 R)
• M14: 11,441,096 km (0.094 R)
• M15: 12,058,037 km (0.105 R)
• M16: 13,358,791 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935.6

Radius: 10.3

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.23 AU - 3.51 AU

Year: 3190 Days

Day: 11.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,204,475 km

• M1: 130,449 km (0.105 R)
• M2: 636,240 km (0.102 R)
• M3: 1,116,150 km (0.057 R)
• M4: 1,526,646 km (0.087 R)
• M5: 1,997,431 km (0.05 R)
• M6: 2,454,602 km (0.064 R)
• M7: 2,775,041 km (0.052 R)
• M8: 3,365,952 km (0.092 R)
• M9: 4,512,171 km (0.105 R)
• M10: 4,997,167 km (0.113 R)
• M11: 5,330,771 km (0.113 R)
• M12: 6,333,375 km (0.113 R)
• M13: 8,066,766 km (0.096 R)
• M14: 9,042,892 km (0.092 R)
• M15: 9,736,278 km (0.072 R)
• M16: 10,547,847 km (0.029 R)
• M17: 10,970,311 km (0.082 R)
• M18: 13,302,691 km (0.094 R)
• M19: 14,097,954 km (0.092 R)
• M20: 15,083,056 km (0.114 R)
• M21: 15,619,663 km (0.12 R)
• M22: 17,481,259 km (0.117 R)
• M23: 17,835,058 km (0.101 R)
• M24: 19,173,211 km (0.117 R)
• M25: 19,803,018 km (0.114 R)
• M26: 21,775,765 km (0.074 R)
• M27: 24,238,745 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.4

Radius: 12.7

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.26 AU - 6.72 AU

Year: 8439 Days

Day: 10.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,204,475 km

• M1: 158,424 km (0.087 R)
• M2: 1,002,455 km (0.103 R)
• M3: 1,617,153 km (0.104 R)
• M4: 3,029,955 km (0.037 R)
• M5: 3,518,093 km (0.067 R)
• M6: 4,926,707 km (0.075 R)
• M7: 6,456,644 km (0.068 R)
• M8: 8,283,234 km (0.088 R)
• M9: 10,126,429 km (0.076 R)
• M10: 10,903,441 km (0.084 R)
• M11: 11,719,946 km (0.113 R)
• M12: 12,635,335 km (0.113 R)
• M13: 15,331,987 km (0.111 R)
• M14: 15,804,865 km (0.059 R)
• M15: 16,287,319 km (0.11 R)
• M16: 18,016,520 km (0.055 R)
• M17: 19,080,311 km (0.103 R)
• M18: 20,346,657 km (0.05 R)
• M19: 23,222,676 km (0.056 R)
• M20: 24,850,151 km (0.028 R)
• M21: 37,938,469 km (0.033 R)
• M22: 44,008,702 km (0.097 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 457 - 12,010 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit