🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.7

Radius: 9.5

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.44 AU - 0.74 AU

Year: 307 Days

Day: 13.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,555,440 km

• M1: 118,332 km (0.106 R)
• M2: 423,512 km (0.107 R)
• M3: 796,459 km (0.119 R)
• M4: 1,198,578 km (0.106 R)
• M5: 1,562,400 km (0.104 R)
• M6: 3,798,888 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.8

Radius: 10.8

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.04 AU - 1.32 AU

Year: 869 Days

Day: 13.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,555,440 km

• M1: 134,339 km (0.105 R)
• M2: 560,842 km (0.081 R)
• M3: 933,491 km (0.115 R)
• M4: 1,325,138 km (0.081 R)
• M5: 1,864,737 km (0.12 R)
• M6: 3,044,317 km (0.115 R)
• M7: 3,650,936 km (0.054 R)
• M8: 3,991,570 km (0.06 R)
• M9: 4,353,448 km (0.098 R)
• M10: 5,453,890 km (0.103 R)
• M11: 6,005,906 km (0.115 R)
• M12: 7,611,988 km (0.101 R)
• M13: 8,197,365 km (0.091 R)
• M14: 9,602,687 km (0.079 R)
• M15: 9,955,589 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.6

Radius: 10.2

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.13 AU - 1.27 AU

Year: 892 Days

Day: 7.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,555,440 km

• M1: 127,457 km (0.115 R)
• M2: 759,209 km (0.086 R)
• M3: 1,485,656 km (0.09 R)
• M4: 1,998,029 km (0.112 R)
• M5: 3,274,697 km (0.086 R)
• M6: 3,731,120 km (0.097 R)
• M7: 5,425,316 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.5

Radius: 9.9

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.57 AU - 1.57 AU

Year: 1334 Days

Day: 13.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,555,440 km

• M1: 123,119 km (0.115 R)
• M2: 564,134 km (0.101 R)
• M3: 901,626 km (0.055 R)
• M4: 1,575,116 km (0.098 R)
• M5: 2,007,304 km (0.043 R)
• M6: 2,632,175 km (0.069 R)
• M7: 3,040,577 km (0.116 R)
• M8: 3,602,317 km (0.085 R)
• M9: 3,985,586 km (0.111 R)
• M10: 5,956,389 km (0.083 R)
• M11: 6,639,752 km (0.112 R)
• M12: 7,243,978 km (0.078 R)
• M13: 7,912,082 km (0.065 R)
• M14: 8,767,183 km (0.083 R)
• M15: 9,588,476 km (0.08 R)
• M16: 10,762,220 km (0.084 R)
• M17: 11,278,632 km (0.063 R)
• M18: 12,623,218 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.1

Radius: 9.1

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.93 AU - 3.69 AU

Year: 4084 Days

Day: 10.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,555,440 km

• M1: 113,246 km (0.032 R)
• M2: 432,787 km (0.111 R)
• M3: 865,872 km (0.072 R)
• M4: 1,622,539 km (0.071 R)
• M5: 2,066,545 km (0.054 R)
• M6: 3,291,752 km (0.08 R)
• M7: 4,028,820 km (0.072 R)
• M8: 5,637,895 km (0.055 R)
• M9: 6,106,435 km (0.096 R)
• M10: 6,873,125 km (0.088 R)
• M11: 7,538,087 km (0.119 R)
• M12: 8,384,961 km (0.098 R)
• M13: 9,256,219 km (0.101 R)
• M14: 11,263,672 km (0.086 R)
• M15: 12,831,009 km (0.102 R)
• M16: 13,936,986 km (0.111 R)
• M17: 15,105,346 km (0.103 R)
• M18: 16,503,188 km (0.077 R)
• M19: 17,176,678 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.5

Radius: 13.2

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.39 AU - 3.73 AU

Year: 4556 Days

Day: 9.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,555,440 km

• M1: 164,558 km (0.104 R)
• M2: 606,320 km (0.05 R)
• M3: 1,048,382 km (0.108 R)
• M4: 1,476,232 km (0.055 R)
• M5: 2,415,856 km (0.092 R)
• M6: 2,877,066 km (0.099 R)
• M7: 3,476,505 km (0.099 R)
• M8: 4,319,190 km (0.065 R)
• M9: 4,776,810 km (0.098 R)
• M10: 5,213,785 km (0.11 R)
• M11: 6,168,967 km (0.097 R)
• M12: 7,072,838 km (0.071 R)
• M13: 7,574,140 km (0.097 R)
• M14: 8,134,833 km (0.108 R)
• M15: 8,798,748 km (0.116 R)
• M16: 10,617,559 km (0.03 R)
• M17: 11,684,342 km (0.099 R)
• M18: 13,824,190 km (0.068 R)
• M19: 14,292,132 km (0.099 R)
• M20: 15,095,772 km (0.083 R)
• M21: 17,266,437 km (0.107 R)
• M22: 19,378,759 km (0.09 R)
• M23: 23,517,832 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.2

Radius: 12.5

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.17 AU - 6.29 AU

Year: 8112 Days

Day: 9.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,555,440 km

• M1: 155,582 km (0.076 R)
• M2: 796,609 km (0.084 R)
• M3: 1,265,448 km (0.119 R)
• M4: 1,701,227 km (0.068 R)
• M5: 2,270,447 km (0.113 R)
• M6: 2,755,443 km (0.056 R)
• M7: 3,819,383 km (0.111 R)
• M8: 6,439,889 km (0.077 R)
• M9: 9,768,591 km (0.089 R)
• M10: 15,210,663 km (0.102 R)
• M11: 16,311,853 km (0.088 R)
• M12: 22,706,713 km (0.059 R)
• M13: 24,144,049 km (0.115 R)
• M14: 24,801,981 km (0.034 R)
• M15: 27,287,699 km (0.1 R)
• M16: 31,272,687 km (0.072 R)
• M17: 31,956,200 km (0.119 R)
• M18: 33,050,358 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 178.9

Radius: 6.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 10.01 AU - 11.01 AU

Year: 23110 Days

Day: 21.3 Hours

Environment

Temp: -245 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,555,440 km

• M1: 78,389 km (0.084 R)
• M2: 355,295 km (0.103 R)
• M3: 595,100 km (0.074 R)
• M4: 944,411 km (0.06 R)
• M5: 1,239,718 km (0.099 R)
• M6: 1,551,330 km (0.087 R)
• M7: 1,749,846 km (0.112 R)
• M8: 2,070,883 km (0.061 R)
• M9: 2,312,783 km (0.039 R)
• M10: 2,809,149 km (0.088 R)
• M11: 4,330,110 km (0.12 R)
• M12: 5,149,009 km (0.103 R)
• M13: 7,511,159 km (0.08 R)
• M14: 8,927,103 km (0.084 R)
• M15: 9,319,648 km (0.085 R)
• M16: 9,774,874 km (0.08 R)
• M17: 11,514,249 km (0.101 R)
• M18: 16,306,766 km (0.107 R)
• M19: 17,266,885 km (0.053 R)
• M20: 19,790,153 km (0.1 R)
• M21: 22,279,910 km (0.089 R)
• M22: 24,208,227 km (0.098 R)
• M23: 25,749,982 km (0.111 R)
• M24: 28,709,327 km (0.112 R)
• M25: 28,921,457 km (0.112 R)
• M26: 29,456,120 km (0.095 R)
• M27: 30,766,448 km (0.113 R)
• M28: 37,651,091 km (0.092 R)
• M29: 38,417,032 km (0.083 R)
• M30: 44,637,461 km (0.078 R)
• M31: 47,539,511 km (0.114 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 18,191 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit