🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.6

Radius: 8

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.5 AU - 0.76 AU

Year: 345 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,409,507 km

• M1: 99,483 km (0.072 R)
• M2: 389,553 km (0.036 R)
• M3: 665,112 km (0.081 R)
• M4: 968,646 km (0.053 R)
• M5: 1,294,770 km (0.095 R)
• M6: 1,544,000 km (0.067 R)
• M7: 1,805,497 km (0.055 R)
• M8: 2,104,244 km (0.117 R)
• M9: 2,588,642 km (0.102 R)
• M10: 3,047,458 km (0.069 R)
• M11: 3,379,266 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.6

Radius: 10.5

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.26 AU - 1.28 AU

Year: 988 Days

Day: 12.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,409,507 km

• M1: 130,749 km (0.082 R)
• M2: 458,069 km (0.095 R)
• M3: 804,837 km (0.069 R)
• M4: 1,153,998 km (0.063 R)
• M5: 1,523,505 km (0.057 R)
• M6: 2,012,391 km (0.118 R)
• M7: 2,440,240 km (0.086 R)
• M8: 3,365,055 km (0.104 R)
• M9: 3,705,539 km (0.097 R)
• M10: 4,473,874 km (0.12 R)
• M11: 4,905,464 km (0.092 R)
• M12: 5,384,626 km (0.104 R)
• M13: 5,748,747 km (0.064 R)
• M14: 7,620,815 km (0.066 R)
• M15: 9,312,467 km (0.083 R)
• M16: 9,779,213 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.4

Radius: 13.5

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.19 AU - 1.81 AU

Year: 1268 Days

Day: 6 Hours

Environment

Temp: -198 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,409,507 km

• M1: 178,021 km (0.079 R)
• M2: 705,803 km (0.077 R)
• M3: 1,448,407 km (0.045 R)
• M4: 2,178,893 km (0.088 R)
• M5: 3,446,137 km (0.062 R)
• M6: 4,584,128 km (0.089 R)
• M7: 5,303,245 km (0.065 R)
• M8: 5,846,135 km (0.109 R)
• M9: 6,816,876 km (0.087 R)
• M10: 7,593,289 km (0.071 R)
• M11: 8,987,541 km (0.115 R)
• M12: 10,816,973 km (0.073 R)
• M13: 11,693,168 km (0.104 R)
• M14: 12,241,444 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.6

Radius: 12.7

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.52 AU - 2.32 AU

Year: 1836 Days

Day: 5.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,409,507 km

• M1: 169,046 km (0.045 R)
• M2: 1,015,321 km (0.059 R)
• M3: 1,637,797 km (0.046 R)
• M4: 2,230,504 km (0.119 R)
• M5: 3,051,348 km (0.113 R)
• M6: 3,462,892 km (0.1 R)
• M7: 4,018,348 km (0.057 R)
• M8: 4,683,760 km (0.114 R)
• M9: 5,216,478 km (0.046 R)
• M10: 6,030,141 km (0.08 R)
• M11: 6,510,499 km (0.101 R)
• M12: 8,008,273 km (0.077 R)
• M13: 8,904,364 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.1

Radius: 8.2

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.88 AU - 2.22 AU

Year: 2026 Days

Day: 14.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,409,507 km

• M1: 106,663 km (0.11 R)
• M2: 563,535 km (0.09 R)
• M3: 993,928 km (0.081 R)
• M4: 1,418,337 km (0.049 R)
• M5: 2,078,363 km (0.091 R)
• M6: 4,213,574 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.7

Radius: 12.1

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.7 AU - 2.52 AU

Year: 2116 Days

Day: 13.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,409,507 km

• M1: 150,495 km (0.098 R)
• M2: 1,314,816 km (0.091 R)
• M3: 1,770,192 km (0.095 R)
• M4: 3,507,172 km (0.103 R)
• M5: 3,926,346 km (0.118 R)
• M6: 4,378,879 km (0.085 R)
• M7: 4,757,362 km (0.097 R)
• M8: 5,319,551 km (0.111 R)
• M9: 5,825,640 km (0.098 R)
• M10: 6,469,958 km (0.098 R)
• M11: 7,421,999 km (0.097 R)
• M12: 7,809,906 km (0.111 R)
• M13: 8,433,131 km (0.093 R)
• M14: 8,922,167 km (0.089 R)
• M15: 9,638,591 km (0.107 R)
• M16: 10,993,948 km (0.111 R)
• M17: 11,857,875 km (0.095 R)
• M18: 13,324,832 km (0.079 R)
• M19: 14,722,375 km (0.061 R)
• M20: 15,577,477 km (0.036 R)
• M21: 17,127,460 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.4

Radius: 8.9

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.87 AU - 2.43 AU

Year: 2176 Days

Day: 10.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,409,507 km

• M1: 110,702 km (0.118 R)
• M2: 426,504 km (0.084 R)
• M3: 1,316,461 km (0.072 R)
• M4: 1,611,019 km (0.1 R)
• M5: 2,035,877 km (0.047 R)
• M6: 2,652,071 km (0.109 R)
• M7: 3,369,692 km (0.09 R)
• M8: 3,717,208 km (0.118 R)
• M9: 4,792,966 km (0.092 R)
• M10: 5,354,257 km (0.092 R)
• M11: 6,143,536 km (0.109 R)
• M12: 6,636,012 km (0.085 R)
• M13: 7,919,861 km (0.105 R)
• M14: 8,305,973 km (0.119 R)
• M15: 9,115,896 km (0.115 R)
• M16: 9,720,720 km (0.03 R)
• M17: 10,238,777 km (0.084 R)
• M18: 11,089,989 km (0.09 R)
• M19: 12,626,659 km (0.101 R)
• M20: 15,019,327 km (0.104 R)
• M21: 15,313,586 km (0.104 R)
• M22: 16,373,786 km (0.101 R)
• M23: 17,001,200 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 201.2

Radius: 5.8

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.71 AU - 9.11 AU

Year: 15356 Days

Day: 24.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 42,409,507 km

• M1: 72,705 km (0.088 R)
• M2: 353,500 km (0.081 R)
• M3: 687,103 km (0.059 R)
• M4: 1,159,084 km (0.034 R)
• M5: 2,030,941 km (0.099 R)
• M6: 2,721,185 km (0.086 R)
• M7: 4,609,559 km (0.036 R)
• M8: 5,176,086 km (0.09 R)
• M9: 5,589,724 km (0.089 R)
• M10: 6,850,535 km (0.119 R)
• M11: 7,154,518 km (0.049 R)
• M12: 7,467,477 km (0.08 R)
• M13: 8,679,220 km (0.086 R)
• M14: 11,485,676 km (0.097 R)
• M15: 13,384,372 km (0.102 R)
• M16: 14,346,286 km (0.059 R)
• M17: 14,970,409 km (0.099 R)
• M18: 19,250,254 km (0.083 R)
• M19: 20,163,399 km (0.099 R)
• M20: 22,571,925 km (0.1 R)
• M21: 23,758,835 km (0.116 R)
• M22: 26,164,518 km (0.103 R)
• M23: 28,144,147 km (0.107 R)
• M24: 28,337,726 km (0.093 R)
• M25: 28,727,578 km (0.104 R)
• M26: 34,678,731 km (0.096 R)
• M27: 35,124,832 km (0.079 R)
• M28: 36,028,403 km (0.098 R)
• M29: 38,354,949 km (0.088 R)
• M30: 40,903,648 km (0.109 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 298 - 15,501 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit