🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.6

Radius: 13.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.14 AU - 1.66 AU

Year: 1105 Days

Day: 12.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,231,221 km

• M1: 166,652 km (0.074 R)
• M2: 602,879 km (0.084 R)
• M3: 1,021,753 km (0.081 R)
• M4: 1,822,401 km (0.079 R)
• M5: 2,474,798 km (0.091 R)
• M6: 3,038,931 km (0.118 R)
• M7: 3,578,830 km (0.054 R)
• M8: 4,251,871 km (0.055 R)
• M9: 5,286,041 km (0.034 R)
• M10: 5,983,316 km (0.086 R)
• M11: 6,412,064 km (0.084 R)
• M12: 6,983,079 km (0.118 R)
• M13: 7,407,937 km (0.044 R)
• M14: 8,010,368 km (0.066 R)
• M15: 8,845,124 km (0.095 R)
• M16: 10,078,857 km (0.108 R)
• M17: 10,985,271 km (0.112 R)
• M18: 11,458,599 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.8

Radius: 11.5

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.32 AU - 2 AU

Year: 1426 Days

Day: 13.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,231,221 km

• M1: 143,315 km (0.118 R)
• M2: 517,010 km (0.066 R)
• M3: 900,579 km (0.089 R)
• M4: 1,290,282 km (0.099 R)
• M5: 1,652,458 km (0.114 R)
• M6: 2,019,272 km (0.059 R)
• M7: 2,477,790 km (0.109 R)
• M8: 4,075,495 km (0.093 R)
• M9: 6,463,226 km (0.075 R)
• M10: 6,953,459 km (0.088 R)
• M11: 8,092,347 km (0.097 R)
• M12: 8,928,001 km (0.034 R)
• M13: 9,537,014 km (0.091 R)
• M14: 10,173,702 km (0.098 R)
• M15: 11,710,073 km (0.104 R)
• M16: 12,440,409 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.8

Radius: 10.1

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.73 AU - 2.17 AU

Year: 1816 Days

Day: 7.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,231,221 km

• M1: 125,662 km (0.109 R)
• M2: 769,681 km (0.11 R)
• M3: 1,173,147 km (0.066 R)
• M4: 1,603,091 km (0.116 R)
• M5: 2,288,249 km (0.07 R)
• M6: 2,612,727 km (0.104 R)
• M7: 3,370,290 km (0.101 R)
• M8: 4,564,530 km (0.028 R)
• M9: 5,397,192 km (0.079 R)
• M10: 8,397,228 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713

Radius: 11.1

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.01 AU - 2.69 AU

Year: 2402 Days

Day: 9.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,231,221 km

• M1: 138,228 km (0.079 R)
• M2: 564,882 km (0.076 R)
• M3: 1,022,053 km (0.075 R)
• M4: 1,619,547 km (0.116 R)
• M5: 2,713,107 km (0.116 R)
• M6: 3,428,035 km (0.053 R)
• M7: 4,557,649 km (0.11 R)
• M8: 5,692,498 km (0.108 R)
• M9: 6,557,024 km (0.053 R)
• M10: 7,122,355 km (0.04 R)
• M11: 7,781,333 km (0.072 R)
• M12: 8,947,000 km (0.106 R)
• M13: 9,395,494 km (0.111 R)
• M14: 11,104,052 km (0.106 R)
• M15: 17,569,372 km (0.116 R)
• M16: 18,109,570 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.7

Radius: 8.9

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.09 AU - 3.17 AU

Year: 2844 Days

Day: 7.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,231,221 km

• M1: 110,702 km (0.095 R)
• M2: 389,254 km (0.075 R)
• M3: 875,148 km (0.089 R)
• M4: 1,643,183 km (0.088 R)
• M5: 1,995,636 km (0.108 R)
• M6: 2,674,960 km (0.089 R)
• M7: 3,059,875 km (0.09 R)
• M8: 5,081,690 km (0.103 R)
• M9: 5,463,165 km (0.104 R)
• M10: 6,284,008 km (0.064 R)
• M11: 6,575,126 km (0.116 R)
• M12: 7,633,231 km (0.039 R)
• M13: 8,729,185 km (0.111 R)
• M14: 9,541,203 km (0.083 R)
• M15: 10,044,300 km (0.099 R)
• M16: 10,443,128 km (0.044 R)
• M17: 11,486,723 km (0.038 R)
• M18: 15,398,707 km (0.046 R)
• M19: 16,037,191 km (0.111 R)
• M20: 17,140,176 km (0.083 R)
• M21: 17,768,038 km (0.109 R)
• M22: 18,708,560 km (0.063 R)
• M23: 20,181,052 km (0.068 R)
• M24: 20,560,881 km (0.103 R)
• M25: 21,465,798 km (0.11 R)
• M26: 22,736,034 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 670.9

Radius: 5.2

Gravity: 24.81 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.8 AU - 9.2 AU

Year: 13697 Days

Day: 16.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,231,221 km

• M1: 64,776 km (0.069 R)
• M2: 631,453 km (0.114 R)
• M3: 1,509,742 km (0.087 R)
• M4: 2,600,609 km (0.054 R)
• M5: 3,651,534 km (0.059 R)
• M6: 3,817,887 km (0.092 R)
• M7: 6,037,471 km (0.102 R)
• M8: 6,755,092 km (0.072 R)
• M9: 6,921,893 km (0.065 R)
• M10: 8,844,974 km (0.104 R)
• M11: 9,662,826 km (0.119 R)
• M12: 12,480,202 km (0.091 R)
• M13: 13,180,320 km (0.111 R)
• M14: 13,772,429 km (0.114 R)
• M15: 17,545,137 km (0.083 R)
• M16: 27,680,842 km (0.117 R)
• M17: 31,811,239 km (0.091 R)
• M18: 36,334,331 km (0.05 R)
• M19: 37,495,958 km (0.105 R)
• M20: 38,548,978 km (0.078 R)
• M21: 48,618,261 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.5

Radius: 4

Gravity: 42.66 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.57 AU - 11.05 AU

Year: 20490 Days

Day: 21 Hours

Environment

Temp: -244 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 77,231,221 km

• M1: 54,304 km (0.069 R)
• M2: 189,840 km (0.059 R)
• M3: 595,998 km (0.1 R)
• M4: 734,376 km (0.079 R)
• M5: 1,116,748 km (0.059 R)
• M6: 1,707,959 km (0.058 R)
• M7: 1,932,057 km (0.112 R)
• M8: 2,951,416 km (0.07 R)
• M9: 4,119,925 km (0.05 R)
• M10: 4,454,277 km (0.066 R)
• M11: 5,808,885 km (0.109 R)
• M12: 7,082,861 km (0.062 R)
• M13: 7,224,530 km (0.086 R)
• M14: 8,011,864 km (0.111 R)
• M15: 8,269,321 km (0.107 R)
• M16: 8,532,165 km (0.106 R)
• M17: 9,697,383 km (0.106 R)
• M18: 10,408,870 km (0.096 R)
• M19: 10,839,563 km (0.117 R)
• M20: 11,670,878 km (0.066 R)
• M21: 12,751,274 km (0.12 R)
• M22: 14,343,145 km (0.118 R)
• M23: 17,654,793 km (0.097 R)
• M24: 18,712,599 km (0.069 R)
• M25: 19,256,986 km (0.075 R)
• M26: 19,440,842 km (0.107 R)
• M27: 20,760,295 km (0.094 R)
• M28: 21,738,665 km (0.069 R)
• M29: 24,857,332 km (0.04 R)
• M30: 29,098,282 km (0.079 R)
• M31: 35,285,650 km (0.076 R)
• M32: 41,985,390 km (0.096 R)
• M33: 45,469,525 km (0.073 R)
• M34: 46,123,118 km (0.084 R)
• M35: 47,616,254 km (0.12 R)
• M36: 47,784,253 km (0.094 R)
• M37: 48,459,687 km (0.12 R)
• M38: 50,524,287 km (0.092 R)
• M39: 54,460,357 km (0.105 R)
• M40: 55,754,229 km (0.088 R)
• M41: 60,150,013 km (0.091 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: 258 - 17,327 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit