🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.7

Radius: 15

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.65 AU - 0.77 AU

Year: 386 Days

Day: 14.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,772,431 km

• M1: 186,549 km (0.11 R)
• M2: 685,906 km (0.101 R)
• M3: 1,289,982 km (0.119 R)
• M4: 2,698,297 km (0.076 R)
• M5: 4,034,954 km (0.068 R)
• M6: 4,616,141 km (0.105 R)
• M7: 5,348,722 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.6

Radius: 8.1

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.89 AU - 1.01 AU

Year: 598 Days

Day: 10.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,772,431 km

• M1: 100,829 km (0.104 R)
• M2: 446,550 km (0.084 R)
• M3: 899,831 km (0.097 R)
• M4: 1,225,805 km (0.119 R)
• M5: 1,486,105 km (0.098 R)
• M6: 1,775,278 km (0.118 R)
• M7: 2,285,706 km (0.1 R)
• M8: 2,619,160 km (0.117 R)
• M9: 2,890,380 km (0.074 R)
• M10: 3,268,564 km (0.082 R)
• M11: 3,638,370 km (0.09 R)
• M12: 4,653,541 km (0.107 R)
• M13: 4,985,349 km (0.094 R)
• M14: 5,332,865 km (0.097 R)
• M15: 5,641,037 km (0.095 R)
• M16: 6,018,622 km (0.115 R)
• M17: 6,761,674 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.2

Radius: 10.7

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.95 AU - 1.37 AU

Year: 807 Days

Day: 8.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,772,431 km

• M1: 142,567 km (0.087 R)
• M2: 574,007 km (0.07 R)
• M3: 915,090 km (0.101 R)
• M4: 1,564,046 km (0.113 R)
• M5: 1,956,890 km (0.118 R)
• M6: 2,605,845 km (0.079 R)
• M7: 3,053,442 km (0.088 R)
• M8: 4,089,407 km (0.072 R)
• M9: 4,472,079 km (0.086 R)
• M10: 5,598,850 km (0.087 R)
• M11: 6,510,350 km (0.063 R)
• M12: 7,207,326 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.2

Radius: 14.1

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.1 AU - 1.3 AU

Year: 849 Days

Day: 13.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,772,431 km

• M1: 179,817 km (0.106 R)
• M2: 785,688 km (0.113 R)
• M3: 1,430,006 km (0.109 R)
• M4: 2,282,265 km (0.047 R)
• M5: 3,181,348 km (0.082 R)
• M6: 4,501,101 km (0.091 R)
• M7: 5,074,958 km (0.087 R)
• M8: 6,747,163 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.6

Radius: 11.2

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.3 AU - 1.84 AU

Year: 1270 Days

Day: 7.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,772,431 km

• M1: 139,276 km (0.074 R)
• M2: 671,395 km (0.046 R)
• M3: 1,068,428 km (0.084 R)
• M4: 1,729,052 km (0.11 R)
• M5: 2,471,656 km (0.065 R)
• M6: 3,633,583 km (0.109 R)
• M7: 5,072,415 km (0.1 R)
• M8: 6,499,429 km (0.102 R)
• M9: 7,646,994 km (0.052 R)
• M10: 9,921,032 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.7

Radius: 11.9

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.3 AU - 1.96 AU

Year: 1344 Days

Day: 6.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,772,431 km

• M1: 147,952 km (0.112 R)
• M2: 565,031 km (0.053 R)
• M3: 1,127,070 km (0.077 R)
• M4: 2,060,262 km (0.042 R)
• M5: 2,606,743 km (0.097 R)
• M6: 3,008,712 km (0.118 R)
• M7: 3,599,026 km (0.054 R)
• M8: 4,377,682 km (0.107 R)
• M9: 5,373,556 km (0.075 R)
• M10: 5,798,264 km (0.075 R)
• M11: 6,391,419 km (0.112 R)
• M12: 7,424,243 km (0.053 R)
• M13: 8,535,307 km (0.036 R)
• M14: 9,754,080 km (0.118 R)
• M15: 11,518,587 km (0.118 R)
• M16: 12,038,141 km (0.097 R)
• M17: 12,886,211 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.2

Radius: 12.3

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.41 AU - 3.79 AU

Year: 3524 Days

Day: 13.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,772,431 km

• M1: 153,039 km (0.093 R)
• M2: 625,170 km (0.067 R)
• M3: 1,107,174 km (0.076 R)
• M4: 1,498,971 km (0.078 R)
• M5: 2,113,220 km (0.086 R)
• M6: 2,607,042 km (0.073 R)
• M7: 3,177,608 km (0.077 R)
• M8: 3,971,225 km (0.114 R)
• M9: 5,739,173 km (0.094 R)
• M10: 6,365,389 km (0.112 R)
• M11: 6,916,658 km (0.103 R)
• M12: 8,181,956 km (0.037 R)
• M13: 9,410,604 km (0.1 R)
• M14: 15,063,458 km (0.082 R)
• M15: 15,730,216 km (0.085 R)
• M16: 16,685,847 km (0.109 R)
• M17: 18,654,256 km (0.112 R)
• M18: 20,773,160 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.8

Radius: 12.1

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5 AU - 5.82 AU

Year: 8125 Days

Day: 8.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,772,431 km

• M1: 154,834 km (0.105 R)
• M2: 573,259 km (0.118 R)
• M3: 1,315,264 km (0.033 R)
• M4: 2,280,769 km (0.12 R)
• M5: 3,488,174 km (0.047 R)
• M6: 3,957,612 km (0.108 R)
• M7: 5,319,251 km (0.115 R)
• M8: 5,976,435 km (0.109 R)
• M9: 8,115,385 km (0.094 R)
• M10: 8,816,551 km (0.067 R)
• M11: 9,379,637 km (0.116 R)
• M12: 10,578,065 km (0.118 R)
• M13: 11,015,938 km (0.113 R)
• M14: 11,980,097 km (0.101 R)
• M15: 12,725,842 km (0.064 R)
• M16: 15,581,965 km (0.106 R)
• M17: 17,192,685 km (0.117 R)
• M18: 18,770,045 km (0.115 R)
• M19: 19,485,272 km (0.103 R)
• M20: 23,418,499 km (0.068 R)
• M21: 25,527,530 km (0.08 R)
• M22: 26,494,381 km (0.099 R)
• M23: 30,804,146 km (0.059 R)
• M24: 31,398,648 km (0.108 R)
• M25: 32,000,929 km (0.095 R)
• M26: 34,064,034 km (0.104 R)
• M27: 36,876,773 km (0.108 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 171 - 17,651 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit