🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.8

Radius: 8

Gravity: 15.15 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.74 AU - 0.86 AU

Year: 485 Days

Day: 14.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 20,803,856 km

• M1: 99,632 km (0.088 R)
• M2: 365,019 km (0.115 R)
• M3: 804,986 km (0.075 R)
• M4: 1,064,090 km (0.102 R)
• M5: 1,386,772 km (0.103 R)
• M6: 1,873,713 km (0.118 R)
• M7: 2,138,950 km (0.102 R)
• M8: 2,768,309 km (0.116 R)
• M9: 3,273,351 km (0.078 R)
• M10: 4,079,085 km (0.1 R)
• M11: 4,405,657 km (0.1 R)
• M12: 5,420,978 km (0.108 R)
• M13: 5,946,067 km (0.098 R)
• M14: 6,848,142 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 10.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.93 AU

Year: 485 Days

Day: 14.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,803,856 km

• M1: 135,536 km (0.099 R)
• M2: 587,321 km (0.072 R)
• M3: 972,685 km (0.11 R)
• M4: 1,425,817 km (0.08 R)
• M5: 2,119,802 km (0.115 R)
• M6: 2,467,467 km (0.115 R)
• M7: 2,947,826 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.7

Radius: 12.8

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.5 AU - 1.78 AU

Year: 1424 Days

Day: 10.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 20,803,856 km

• M1: 159,771 km (0.097 R)
• M2: 674,537 km (0.064 R)
• M3: 1,158,785 km (0.068 R)
• M4: 1,720,974 km (0.115 R)
• M5: 2,744,373 km (0.064 R)
• M6: 3,777,047 km (0.032 R)
• M7: 4,599,536 km (0.088 R)
• M8: 5,430,104 km (0.103 R)
• M9: 6,551,190 km (0.038 R)
• M10: 7,258,040 km (0.092 R)
• M11: 9,846,831 km (0.101 R)
• M12: 10,741,127 km (0.062 R)
• M13: 13,076,799 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.6

Radius: 12.3

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.38 AU - 3.62 AU

Year: 4441 Days

Day: 13.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,803,856 km

• M1: 153,039 km (0.102 R)
• M2: 764,146 km (0.038 R)
• M3: 1,209,200 km (0.099 R)
• M4: 1,613,263 km (0.093 R)
• M5: 2,591,185 km (0.057 R)
• M6: 3,822,824 km (0.116 R)
• M7: 4,642,321 km (0.047 R)
• M8: 5,225,005 km (0.066 R)
• M9: 6,205,170 km (0.12 R)
• M10: 9,209,245 km (0.069 R)
• M11: 10,048,938 km (0.087 R)
• M12: 11,026,560 km (0.066 R)
• M13: 11,973,514 km (0.116 R)
• M14: 12,730,779 km (0.095 R)
• M15: 15,032,641 km (0.089 R)
• M16: 15,524,369 km (0.043 R)
• M17: 16,597,734 km (0.08 R)
• M18: 17,901,629 km (0.097 R)
• M19: 18,641,091 km (0.092 R)
• M20: 21,804,189 km (0.082 R)
• M21: 24,474,660 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.2

Radius: 10.9

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.57 AU - 5.13 AU

Year: 6154 Days

Day: 11.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,803,856 km

• M1: 135,536 km (0.084 R)
• M2: 512,971 km (0.072 R)
• M3: 911,799 km (0.097 R)
• M4: 2,312,933 km (0.113 R)
• M5: 6,533,537 km (0.087 R)
• M6: 7,410,031 km (0.043 R)
• M7: 7,892,185 km (0.043 R)
• M8: 13,797,711 km (0.086 R)
• M9: 17,501,455 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.8

Radius: 10.9

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.07 AU - 5.29 AU

Year: 6867 Days

Day: 14.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,803,856 km

• M1: 135,536 km (0.079 R)
• M2: 494,870 km (0.116 R)
• M3: 981,212 km (0.084 R)
• M4: 1,562,999 km (0.05 R)
• M5: 2,692,762 km (0.118 R)
• M6: 3,286,964 km (0.111 R)
• M7: 3,794,700 km (0.11 R)
• M8: 4,274,610 km (0.063 R)
• M9: 5,235,028 km (0.072 R)
• M10: 5,863,937 km (0.1 R)
• M11: 10,071,976 km (0.066 R)
• M12: 11,146,238 km (0.099 R)
• M13: 14,223,616 km (0.114 R)
• M14: 18,035,669 km (0.106 R)
• M15: 20,364,609 km (0.097 R)
• M16: 23,800,572 km (0.088 R)
• M17: 28,072,040 km (0.036 R)
• M18: 33,564,975 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287.7

Radius: 6.9

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 4.31 AU - 6.99 AU

Year: 9109 Days

Day: 24.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 20,803,856 km

• M1: 85,869 km (0.091 R)
• M2: 302,337 km (0.108 R)
• M3: 533,765 km (0.086 R)
• M4: 881,131 km (0.034 R)
• M5: 1,317,060 km (0.111 R)
• M6: 1,790,088 km (0.101 R)
• M7: 2,191,010 km (0.076 R)
• M8: 3,339,324 km (0.117 R)
• M9: 6,121,844 km (0.086 R)
• M10: 6,582,606 km (0.05 R)
• M11: 6,960,639 km (0.036 R)
• M12: 9,627,221 km (0.102 R)
• M13: 10,571,782 km (0.115 R)
• M14: 13,885,974 km (0.1 R)
• M15: 15,565,808 km (0.092 R)
• M16: 16,423,303 km (0.086 R)
• M17: 17,312,064 km (0.075 R)
• M18: 17,702,514 km (0.036 R)
• M19: 20,098,624 km (0.104 R)
• M20: 21,861,335 km (0.08 R)
• M21: 22,394,203 km (0.073 R)
• M22: 26,199,374 km (0.039 R)
• M23: 27,675,456 km (0.095 R)
• M24: 27,941,591 km (0.116 R)
• M25: 31,366,036 km (0.111 R)
• M26: 31,946,476 km (0.116 R)
• M27: 33,730,729 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.1

Radius: 5.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.28 AU - 7.46 AU

Year: 10904 Days

Day: 24 Hours

Environment

Temp: -230 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 20,803,856 km

• M1: 70,161 km (0.1 R)
• M2: 331,958 km (0.109 R)
• M3: 1,309,131 km (0.109 R)
• M4: 2,140,895 km (0.112 R)
• M5: 7,648,490 km (0.099 R)
• M6: 8,403,660 km (0.103 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 15,882 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit