🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.8

Radius: 9.3

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.43 AU - 0.71 AU

Year: 297 Days

Day: 6.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 43,413,992 km

• M1: 115,639 km (0.106 R)
• M2: 437,125 km (0.099 R)
• M3: 1,067,979 km (0.098 R)
• M4: 1,620,444 km (0.074 R)
• M5: 2,275,084 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.3

Radius: 8

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.53 AU - 0.79 AU

Year: 370 Days

Day: 9.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,413,992 km

• M1: 99,632 km (0.107 R)
• M2: 374,892 km (0.049 R)
• M3: 847,173 km (0.087 R)
• M4: 1,131,110 km (0.116 R)
• M5: 1,991,896 km (0.041 R)
• M6: 2,294,383 km (0.101 R)
• M7: 2,895,616 km (0.073 R)
• M8: 3,498,795 km (0.116 R)
• M9: 3,871,144 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907

Radius: 8.7

Gravity: 11.98 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.24 AU - 2.36 AU

Year: 2408 Days

Day: 11.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,413,992 km

• M1: 108,159 km (0.072 R)
• M2: 413,489 km (0.119 R)
• M3: 797,357 km (0.103 R)
• M4: 1,093,560 km (0.051 R)
• M5: 1,464,264 km (0.055 R)
• M6: 1,799,214 km (0.102 R)
• M7: 3,263,478 km (0.073 R)
• M8: 4,041,237 km (0.118 R)
• M9: 4,312,159 km (0.12 R)
• M10: 6,040,164 km (0.092 R)
• M11: 8,153,832 km (0.052 R)
• M12: 9,108,715 km (0.073 R)
• M13: 10,327,788 km (0.117 R)
• M14: 12,290,363 km (0.108 R)
• M15: 13,916,641 km (0.114 R)
• M16: 15,579,721 km (0.107 R)
• M17: 17,979,270 km (0.077 R)
• M18: 20,128,543 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.1

Radius: 9.3

Gravity: 10.49 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.12 AU - 2.62 AU

Year: 2518 Days

Day: 7.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,413,992 km

• M1: 115,639 km (0.093 R)
• M2: 768,185 km (0.063 R)
• M3: 1,105,977 km (0.059 R)
• M4: 1,586,186 km (0.099 R)
• M5: 2,788,205 km (0.075 R)
• M6: 3,241,187 km (0.119 R)
• M7: 6,090,129 km (0.111 R)
• M8: 6,479,084 km (0.116 R)
• M9: 7,682,449 km (0.064 R)
• M10: 10,060,457 km (0.094 R)
• M11: 11,046,456 km (0.095 R)
• M12: 12,095,437 km (0.1 R)
• M13: 13,209,492 km (0.085 R)
• M14: 13,673,694 km (0.106 R)
• M15: 17,070,314 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.2

Radius: 12.7

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.79 AU - 2.87 AU

Year: 3286 Days

Day: 9.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 137.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,413,992 km

• M1: 158,125 km (0.057 R)
• M2: 1,272,479 km (0.076 R)
• M3: 2,581,760 km (0.114 R)
• M4: 3,518,991 km (0.09 R)
• M5: 4,152,837 km (0.115 R)
• M6: 4,765,889 km (0.069 R)
• M7: 5,360,840 km (0.119 R)
• M8: 8,531,567 km (0.098 R)
• M9: 9,373,204 km (0.118 R)
• M10: 12,690,537 km (0.096 R)
• M11: 13,398,883 km (0.12 R)
• M12: 15,629,537 km (0.113 R)
• M13: 19,117,411 km (0.084 R)
• M14: 19,548,253 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.5

Radius: 15

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.91 AU - 4.35 AU

Year: 4774 Days

Day: 6.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,413,992 km

• M1: 186,549 km (0.027 R)
• M2: 1,093,860 km (0.041 R)
• M3: 2,102,000 km (0.093 R)
• M4: 3,445,089 km (0.083 R)
• M5: 4,734,473 km (0.106 R)
• M6: 5,303,245 km (0.052 R)
• M7: 6,437,496 km (0.118 R)
• M8: 7,229,018 km (0.119 R)
• M9: 8,520,197 km (0.109 R)
• M10: 10,267,051 km (0.089 R)
• M11: 10,738,883 km (0.093 R)
• M12: 11,307,654 km (0.093 R)
• M13: 13,227,743 km (0.058 R)
• M14: 14,120,842 km (0.117 R)
• M15: 15,871,137 km (0.088 R)
• M16: 17,372,502 km (0.037 R)
• M17: 18,100,894 km (0.093 R)
• M18: 18,617,006 km (0.118 R)
• M19: 19,559,024 km (0.085 R)
• M20: 20,905,854 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76

Radius: 15

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.57 AU - 5.31 AU

Year: 7579 Days

Day: 6 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,413,992 km

• M1: 188,194 km (0.095 R)
• M2: 918,681 km (0.056 R)
• M3: 3,009,161 km (0.057 R)
• M4: 5,297,709 km (0.11 R)
• M5: 8,977,667 km (0.057 R)
• M6: 11,383,800 km (0.099 R)
• M7: 14,473,744 km (0.119 R)
• M8: 16,441,853 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.8

Radius: 4.1

Gravity: 13.08 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 5.21 AU - 6.09 AU

Year: 9270 Days

Day: 21.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,413,992 km

• M1: 52,658 km (0.115 R)
• M2: 209,437 km (0.094 R)
• M3: 455,226 km (0.067 R)
• M4: 585,975 km (0.092 R)
• M5: 1,062,145 km (0.055 R)
• M6: 1,201,121 km (0.09 R)
• M7: 1,421,030 km (0.072 R)
• M8: 2,104,842 km (0.118 R)
• M9: 2,686,179 km (0.07 R)
• M10: 4,820,642 km (0.084 R)
• M11: 5,433,544 km (0.103 R)
• M12: 6,159,692 km (0.032 R)
• M13: 6,415,654 km (0.118 R)
• M14: 21,060,837 km (0.081 R)
• M15: 23,600,410 km (0.116 R)
• M16: 28,920,410 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.2

Radius: 6.8

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 8.06 AU - 10.76 AU

Year: 19925 Days

Day: 15.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,413,992 km

• M1: 131,945 km (0.089 R)
• M2: 1,163,273 km (0.046 R)
• M3: 3,159,208 km (0.094 R)
• M4: 4,357,337 km (0.108 R)
• M5: 7,372,482 km (0.105 R)
• M6: 8,803,685 km (0.093 R)
• M7: 9,871,215 km (0.041 R)
• M8: 12,942,161 km (0.12 R)
• M9: 15,461,987 km (0.077 R)
• M10: 19,180,392 km (0.079 R)
• M11: 20,098,025 km (0.103 R)
• M12: 20,331,847 km (0.052 R)
• M13: 23,282,665 km (0.069 R)
• M14: 24,949,484 km (0.099 R)
• M15: 25,219,658 km (0.112 R)
• M16: 26,600,446 km (0.109 R)
• M17: 30,220,415 km (0.111 R)
• M18: 36,188,323 km (0.109 R)
• M19: 39,508,050 km (0.088 R)
• M20: 41,619,474 km (0.071 R)
• M21: 42,382,423 km (0.11 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 210 - 17,631 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit