🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.9

Radius: 13.6

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.5 AU - 0.66 AU

Year: 300 Days

Day: 13.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,684,755 km

• M1: 169,794 km (0.115 R)
• M2: 641,326 km (0.084 R)
• M3: 1,184,516 km (0.07 R)
• M4: 1,619,846 km (0.079 R)
• M5: 2,247,259 km (0.112 R)
• M6: 3,085,755 km (0.111 R)
• M7: 3,514,952 km (0.074 R)
• M8: 3,984,240 km (0.103 R)
• M9: 4,536,555 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.8

Radius: 11.9

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.94 AU - 1.42 AU

Year: 869 Days

Day: 14.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,684,755 km

• M1: 148,251 km (0.115 R)
• M2: 551,119 km (0.115 R)
• M3: 1,245,701 km (0.118 R)
• M4: 1,867,580 km (0.105 R)
• M5: 2,294,233 km (0.099 R)
• M6: 2,886,192 km (0.063 R)
• M7: 3,777,645 km (0.102 R)
• M8: 4,185,150 km (0.117 R)
• M9: 4,779,951 km (0.106 R)
• M10: 5,768,344 km (0.046 R)
• M11: 6,139,197 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.6

Radius: 10.6

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.29 AU - 1.81 AU

Year: 1309 Days

Day: 13.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,684,755 km

• M1: 131,796 km (0.085 R)
• M2: 470,485 km (0.077 R)
• M3: 1,067,830 km (0.095 R)
• M4: 3,313,593 km (0.088 R)
• M5: 3,921,708 km (0.116 R)
• M6: 5,133,152 km (0.115 R)
• M7: 6,773,792 km (0.114 R)
• M8: 7,461,343 km (0.119 R)
• M9: 7,972,519 km (0.104 R)
• M10: 8,364,017 km (0.078 R)
• M11: 8,856,643 km (0.111 R)
• M12: 10,157,097 km (0.116 R)
• M13: 10,718,239 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.6

Radius: 14.1

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.36 AU - 2.88 AU

Year: 2876 Days

Day: 11.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,684,755 km

• M1: 178,470 km (0.109 R)
• M2: 737,368 km (0.075 R)
• M3: 1,372,710 km (0.059 R)
• M4: 2,364,394 km (0.115 R)
• M5: 2,840,564 km (0.088 R)
• M6: 4,924,014 km (0.058 R)
• M7: 5,709,852 km (0.06 R)
• M8: 9,459,073 km (0.11 R)
• M9: 9,978,926 km (0.108 R)
• M10: 11,445,135 km (0.09 R)
• M11: 13,050,769 km (0.106 R)
• M12: 13,978,874 km (0.063 R)
• M13: 14,556,621 km (0.111 R)
• M14: 20,621,019 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.7

Radius: 13.6

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.48 AU - 3.24 AU

Year: 3281 Days

Day: 6.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,684,755 km

• M1: 169,195 km (0.079 R)
• M2: 623,973 km (0.092 R)
• M3: 1,135,897 km (0.102 R)
• M4: 1,584,541 km (0.107 R)
• M5: 2,603,302 km (0.118 R)
• M6: 5,701,025 km (0.069 R)
• M7: 6,684,482 km (0.042 R)
• M8: 7,934,671 km (0.094 R)
• M9: 8,516,008 km (0.089 R)
• M10: 9,335,356 km (0.039 R)
• M11: 15,152,320 km (0.083 R)
• M12: 18,058,258 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.7

Radius: 8.4

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 4.51 AU - 6.21 AU

Year: 8417 Days

Day: 11.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,684,755 km

• M1: 113,545 km (0.082 R)
• M2: 465,249 km (0.101 R)
• M3: 798,853 km (0.12 R)
• M4: 1,733,839 km (0.113 R)
• M5: 2,100,653 km (0.094 R)
• M6: 3,663,801 km (0.092 R)
• M7: 4,527,879 km (0.103 R)
• M8: 5,742,464 km (0.108 R)
• M9: 7,490,964 km (0.068 R)
• M10: 7,865,258 km (0.064 R)
• M11: 8,468,287 km (0.115 R)
• M12: 10,008,846 km (0.096 R)
• M13: 12,233,216 km (0.088 R)
• M14: 19,417,205 km (0.114 R)
• M15: 20,517,498 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.4

Radius: 6.3

Gravity: 24.42 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 5.4 AU - 8.18 AU

Year: 12000 Days

Day: 19.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 90.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,684,755 km

• M1: 82,877 km (0.111 R)
• M2: 287,378 km (0.119 R)
• M3: 608,863 km (0.066 R)
• M4: 959,970 km (0.043 R)
• M5: 1,195,137 km (0.104 R)
• M6: 1,800,410 km (0.089 R)
• M7: 2,181,137 km (0.103 R)
• M8: 2,957,550 km (0.053 R)
• M9: 4,607,166 km (0.119 R)
• M10: 6,299,566 km (0.084 R)
• M11: 8,368,505 km (0.084 R)
• M12: 9,320,396 km (0.097 R)
• M13: 10,737,088 km (0.072 R)
• M14: 11,798,335 km (0.105 R)
• M15: 12,670,640 km (0.034 R)
• M16: 33,055,445 km (0.107 R)
• M17: 38,952,742 km (0.089 R)
• M18: 44,471,408 km (0.058 R)
• M19: 45,664,451 km (0.084 R)
• M20: 46,573,108 km (0.069 R)
• M21: 50,650,398 km (0.096 R)
• M22: 56,505,809 km (0.082 R)
• M23: 59,147,707 km (0.11 R)
• M24: 59,505,994 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142

Radius: 5.5

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.47 AU - 8.37 AU

Year: 12347 Days

Day: 15 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,684,755 km

• M1: 79,586 km (0.091 R)
• M2: 255,214 km (0.102 R)
• M3: 475,272 km (0.105 R)
• M4: 846,724 km (0.105 R)
• M5: 1,249,890 km (0.089 R)
• M6: 2,695,006 km (0.108 R)
• M7: 4,116,485 km (0.087 R)
• M8: 4,544,484 km (0.106 R)
• M9: 4,864,175 km (0.093 R)
• M10: 5,820,704 km (0.062 R)
• M11: 7,870,793 km (0.062 R)
• M12: 9,779,811 km (0.091 R)
• M13: 10,586,293 km (0.085 R)
• M14: 11,195,605 km (0.087 R)
• M15: 11,582,017 km (0.117 R)
• M16: 17,064,330 km (0.058 R)
• M17: 20,076,782 km (0.084 R)
• M18: 23,114,068 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.9

Radius: 7.4

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 6.52 AU - 10.06 AU

Year: 16189 Days

Day: 16.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,684,755 km

• M1: 92,302 km (0.107 R)
• M2: 395,686 km (0.109 R)
• M3: 1,116,898 km (0.107 R)
• M4: 2,753,947 km (0.105 R)
• M5: 3,635,079 km (0.087 R)
• M6: 4,493,471 km (0.109 R)
• M7: 9,719,673 km (0.074 R)
• M8: 14,175,745 km (0.09 R)
• M9: 16,674,627 km (0.106 R)
• M10: 19,754,100 km (0.059 R)
• M11: 21,789,229 km (0.087 R)
• M12: 23,702,735 km (0.119 R)
• M13: 24,480,944 km (0.106 R)
• M14: 27,198,538 km (0.112 R)
• M15: 30,819,256 km (0.077 R)
• M16: 37,701,506 km (0.084 R)
• M17: 37,935,327 km (0.096 R)
• M18: 39,841,055 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 13,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit