🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.5

Radius: 10

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.45 AU - 0.67 AU

Year: 289 Days

Day: 11.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,755,146 km

• M1: 124,316 km (0.095 R)
• M2: 444,455 km (0.073 R)
• M3: 773,122 km (0.043 R)
• M4: 1,128,716 km (0.079 R)
• M5: 1,556,117 km (0.088 R)
• M6: 1,964,968 km (0.11 R)
• M7: 2,445,177 km (0.089 R)
• M8: 2,791,347 km (0.057 R)
• M9: 3,642,259 km (0.054 R)
• M10: 4,410,744 km (0.069 R)
• M11: 4,855,199 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.5

Radius: 14.2

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.71 AU - 0.75 AU

Year: 431 Days

Day: 8.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,755,146 km

• M1: 177,124 km (0.108 R)
• M2: 665,411 km (0.092 R)
• M3: 1,399,189 km (0.106 R)
• M4: 2,786,260 km (0.11 R)
• M5: 3,489,670 km (0.104 R)
• M6: 4,512,919 km (0.071 R)
• M7: 5,254,326 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.7

Radius: 8.9

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.98 AU - 1.36 AU

Year: 874 Days

Day: 11.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,755,146 km

• M1: 110,852 km (0.076 R)
• M2: 440,566 km (0.117 R)
• M3: 1,135,298 km (0.098 R)
• M4: 1,466,658 km (0.086 R)
• M5: 1,808,489 km (0.079 R)
• M6: 2,350,931 km (0.076 R)
• M7: 2,714,154 km (0.063 R)
• M8: 2,998,241 km (0.119 R)
• M9: 3,511,361 km (0.087 R)
• M10: 3,987,980 km (0.098 R)
• M11: 4,274,759 km (0.104 R)
• M12: 4,643,967 km (0.036 R)
• M13: 5,465,708 km (0.065 R)
• M14: 7,324,910 km (0.12 R)
• M15: 8,410,392 km (0.086 R)
• M16: 9,100,188 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.9

Radius: 12.4

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.82 AU - 2.64 AU

Year: 2299 Days

Day: 6.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,755,146 km

• M1: 154,385 km (0.104 R)
• M2: 741,257 km (0.077 R)
• M3: 1,213,388 km (0.081 R)
• M4: 1,641,837 km (0.115 R)
• M5: 2,062,506 km (0.094 R)
• M6: 3,359,220 km (0.117 R)
• M7: 3,933,078 km (0.11 R)
• M8: 4,426,302 km (0.112 R)
• M9: 5,348,273 km (0.026 R)
• M10: 5,805,744 km (0.114 R)
• M11: 6,854,724 km (0.11 R)
• M12: 7,250,410 km (0.118 R)
• M13: 8,087,859 km (0.077 R)
• M14: 8,530,370 km (0.075 R)
• M15: 10,207,811 km (0.087 R)
• M16: 12,014,355 km (0.067 R)
• M17: 14,025,100 km (0.036 R)
• M18: 14,434,399 km (0.097 R)
• M19: 15,468,569 km (0.091 R)
• M20: 17,111,603 km (0.034 R)
• M21: 17,684,413 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.1

Radius: 13.8

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.74 AU - 2.72 AU

Year: 2299 Days

Day: 5.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,755,146 km

• M1: 171,888 km (0.118 R)
• M2: 718,818 km (0.102 R)
• M3: 1,489,845 km (0.101 R)
• M4: 2,363,796 km (0.11 R)
• M5: 3,131,383 km (0.074 R)
• M6: 4,078,936 km (0.069 R)
• M7: 4,989,837 km (0.099 R)
• M8: 5,482,463 km (0.092 R)
• M9: 6,462,179 km (0.075 R)
• M10: 7,187,430 km (0.08 R)
• M11: 7,817,835 km (0.08 R)
• M12: 9,455,782 km (0.089 R)
• M13: 10,108,179 km (0.12 R)
• M14: 11,541,326 km (0.104 R)
• M15: 13,148,007 km (0.114 R)
• M16: 13,874,305 km (0.096 R)
• M17: 14,717,588 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.2

Radius: 12.7

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.19 AU - 2.65 AU

Year: 2599 Days

Day: 11.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,755,146 km

• M1: 158,574 km (0.056 R)
• M2: 853,456 km (0.029 R)
• M3: 1,609,075 km (0.092 R)
• M4: 2,122,644 km (0.067 R)
• M5: 2,886,641 km (0.106 R)
• M6: 3,413,973 km (0.098 R)
• M7: 3,905,402 km (0.098 R)
• M8: 4,315,450 km (0.067 R)
• M9: 5,619,943 km (0.09 R)
• M10: 7,023,171 km (0.118 R)
• M11: 9,530,581 km (0.116 R)
• M12: 11,392,327 km (0.06 R)
• M13: 12,805,877 km (0.109 R)
• M14: 17,143,617 km (0.11 R)
• M15: 20,061,074 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.5

Radius: 11

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.37 AU - 3.25 AU

Year: 3251 Days

Day: 6.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,755,146 km

• M1: 140,323 km (0.116 R)
• M2: 692,937 km (0.119 R)
• M3: 1,348,625 km (0.09 R)
• M4: 1,895,854 km (0.076 R)
• M5: 2,554,982 km (0.101 R)
• M6: 3,009,460 km (0.104 R)
• M7: 3,824,021 km (0.107 R)
• M8: 4,215,668 km (0.104 R)
• M9: 4,779,652 km (0.094 R)
• M10: 5,691,900 km (0.062 R)
• M11: 6,967,072 km (0.063 R)
• M12: 7,487,224 km (0.116 R)
• M13: 9,751,986 km (0.049 R)
• M14: 11,479,692 km (0.033 R)
• M15: 11,930,430 km (0.085 R)
• M16: 12,581,181 km (0.093 R)
• M17: 24,202,692 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.6

Radius: 10.8

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.19 AU - 4.61 AU

Year: 5316 Days

Day: 7.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,755,146 km

• M1: 134,339 km (0.104 R)
• M2: 790,924 km (0.056 R)
• M3: 2,379,055 km (0.068 R)
• M4: 3,174,317 km (0.06 R)
• M5: 4,352,849 km (0.102 R)
• M6: 4,781,148 km (0.091 R)
• M7: 5,540,507 km (0.086 R)
• M8: 6,550,143 km (0.063 R)
• M9: 7,710,274 km (0.119 R)
• M10: 8,305,524 km (0.109 R)
• M11: 9,365,425 km (0.071 R)
• M12: 10,276,626 km (0.108 R)
• M13: 13,040,746 km (0.111 R)
• M14: 13,838,401 km (0.098 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 18,722 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit