🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 10.2

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.55 AU - 0.85 AU

Year: 391 Days

Day: 12 Hours

Environment

Temp: -168 °C

Axial Tilt: 165.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,339,486 km

• M1: 127,009 km (0.084 R)
• M2: 565,181 km (0.071 R)
• M3: 1,016,667 km (0.075 R)
• M4: 1,450,052 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.4

Radius: 11.5

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.93 AU - 0.93 AU

Year: 598 Days

Day: 8.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,339,486 km

• M1: 143,016 km (0.119 R)
• M2: 584,329 km (0.106 R)
• M3: 1,220,569 km (0.118 R)
• M4: 1,616,854 km (0.112 R)
• M5: 2,025,256 km (0.109 R)
• M6: 2,556,777 km (0.114 R)
• M7: 2,969,817 km (0.115 R)
• M8: 3,387,494 km (0.092 R)
• M9: 4,171,686 km (0.036 R)
• M10: 4,934,336 km (0.107 R)
• M11: 5,304,142 km (0.061 R)
• M12: 5,673,499 km (0.079 R)
• M13: 6,060,210 km (0.077 R)
• M14: 6,865,046 km (0.115 R)
• M15: 7,928,238 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.8

Radius: 9.7

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.45 AU - 1.45 AU

Year: 1164 Days

Day: 12.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,339,486 km

• M1: 120,725 km (0.107 R)
• M2: 472,131 km (0.12 R)
• M3: 836,850 km (0.088 R)
• M4: 1,286,242 km (0.108 R)
• M5: 1,595,611 km (0.095 R)
• M6: 2,181,586 km (0.115 R)
• M7: 2,980,139 km (0.066 R)
• M8: 3,510,015 km (0.032 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.7

Radius: 10.2

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.34 AU - 1.7 AU

Year: 1250 Days

Day: 6.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,339,486 km

• M1: 127,009 km (0.069 R)
• M2: 452,833 km (0.04 R)
• M3: 908,807 km (0.055 R)
• M4: 1,266,047 km (0.063 R)
• M5: 1,673,851 km (0.116 R)
• M6: 2,746,916 km (0.112 R)
• M7: 3,410,532 km (0.057 R)
• M8: 4,313,206 km (0.089 R)
• M9: 4,683,461 km (0.107 R)
• M10: 5,190,597 km (0.1 R)
• M11: 5,945,019 km (0.098 R)
• M12: 6,427,173 km (0.06 R)
• M13: 8,485,341 km (0.11 R)
• M14: 9,211,788 km (0.118 R)
• M15: 9,768,442 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.8

Radius: 10.6

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.92 AU - 2.42 AU

Year: 2132 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,339,486 km

• M1: 131,796 km (0.078 R)
• M2: 510,428 km (0.104 R)
• M3: 1,013,077 km (0.119 R)
• M4: 1,542,354 km (0.111 R)
• M5: 2,069,238 km (0.09 R)
• M6: 2,629,482 km (0.093 R)
• M7: 3,006,468 km (0.101 R)
• M8: 3,762,835 km (0.11 R)
• M9: 4,282,688 km (0.051 R)
• M10: 4,765,739 km (0.068 R)
• M11: 5,769,990 km (0.106 R)
• M12: 7,182,194 km (0.071 R)
• M13: 7,865,856 km (0.09 R)
• M14: 8,812,511 km (0.091 R)
• M15: 9,867,775 km (0.027 R)
• M16: 11,491,211 km (0.109 R)
• M17: 12,267,325 km (0.112 R)
• M18: 12,749,479 km (0.096 R)
• M19: 13,160,873 km (0.105 R)
• M20: 15,306,405 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616

Radius: 10.8

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.79 AU - 2.91 AU

Year: 2402 Days

Day: 14 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,339,486 km

• M1: 134,339 km (0.086 R)
• M2: 487,539 km (0.082 R)
• M3: 901,626 km (0.067 R)
• M4: 1,287,140 km (0.107 R)
• M5: 2,024,059 km (0.075 R)
• M6: 3,022,625 km (0.044 R)
• M7: 3,368,944 km (0.073 R)
• M8: 5,259,113 km (0.079 R)
• M9: 6,117,057 km (0.102 R)
• M10: 8,850,060 km (0.082 R)
• M11: 9,775,922 km (0.094 R)
• M12: 10,134,657 km (0.109 R)
• M13: 10,502,369 km (0.098 R)
• M14: 11,303,466 km (0.116 R)
• M15: 12,103,814 km (0.071 R)
• M16: 12,517,901 km (0.078 R)
• M17: 13,862,187 km (0.042 R)
• M18: 16,632,142 km (0.115 R)
• M19: 17,041,142 km (0.111 R)
• M20: 17,456,875 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.6

Radius: 9

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.95 AU - 5.17 AU

Year: 7590 Days

Day: 5.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,339,486 km

• M1: 112,198 km (0.091 R)
• M2: 435,928 km (0.104 R)
• M3: 882,927 km (0.113 R)
• M4: 2,234,543 km (0.096 R)
• M5: 3,446,885 km (0.098 R)
• M6: 4,375,139 km (0.118 R)
• M7: 5,205,856 km (0.115 R)
• M8: 5,998,426 km (0.093 R)
• M9: 6,279,819 km (0.088 R)
• M10: 7,616,476 km (0.078 R)
• M11: 9,225,701 km (0.086 R)
• M12: 10,997,987 km (0.113 R)
• M13: 15,927,536 km (0.08 R)
• M14: 16,606,112 km (0.099 R)
• M15: 17,731,985 km (0.05 R)
• M16: 18,535,027 km (0.075 R)
• M17: 18,907,974 km (0.086 R)
• M18: 19,285,858 km (0.117 R)
• M19: 21,496,167 km (0.077 R)
• M20: 21,825,133 km (0.059 R)
• M21: 23,957,949 km (0.117 R)
• M22: 25,120,325 km (0.101 R)
• M23: 27,847,943 km (0.056 R)
• M24: 32,461,840 km (0.082 R)
• M25: 34,892,656 km (0.067 R)
• M26: 37,679,964 km (0.099 R)
• M27: 38,520,105 km (0.069 R)
• M28: 41,877,979 km (0.038 R)
• M29: 42,779,456 km (0.088 R)
• M30: 43,693,648 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518.9

Radius: 5.4

Gravity: 17.79 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.73 AU - 9.23 AU

Year: 15033 Days

Day: 18.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,339,486 km

• M1: 67,169 km (0.106 R)
• M2: 249,080 km (0.104 R)
• M3: 829,520 km (0.053 R)
• M4: 1,039,256 km (0.108 R)
• M5: 1,724,265 km (0.107 R)
• M6: 3,335,434 km (0.113 R)
• M7: 4,250,076 km (0.071 R)
• M8: 5,182,369 km (0.108 R)
• M9: 5,426,513 km (0.114 R)
• M10: 6,089,531 km (0.116 R)
• M11: 6,480,580 km (0.085 R)
• M12: 13,915,893 km (0.087 R)
• M13: 19,711,614 km (0.056 R)
• M14: 21,982,809 km (0.094 R)
• M15: 22,715,389 km (0.113 R)
• M16: 25,407,403 km (0.095 R)
• M17: 29,171,286 km (0.039 R)
• M18: 33,770,822 km (0.075 R)
• M19: 38,041,841 km (0.094 R)
• M20: 38,698,875 km (0.059 R)
• M21: 39,363,389 km (0.104 R)
• M22: 43,654,155 km (0.117 R)
• M23: 44,085,296 km (0.069 R)
• M24: 45,986,086 km (0.116 R)
• M25: 48,246,510 km (0.101 R)
• M26: 54,800,692 km (0.1 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 12,815 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit