🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.2

Radius: 13.3

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.71 AU - 1.03 AU

Year: 560 Days

Day: 9.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,669,438 km

• M1: 166,353 km (0.106 R)
• M2: 596,896 km (0.106 R)
• M3: 1,010,833 km (0.114 R)
• M4: 1,794,277 km (0.102 R)
• M5: 2,422,289 km (0.041 R)
• M6: 2,873,775 km (0.065 R)
• M7: 3,394,675 km (0.118 R)
• M8: 3,949,982 km (0.072 R)
• M9: 4,838,893 km (0.108 R)
• M10: 5,473,038 km (0.086 R)
• M11: 6,084,893 km (0.041 R)
• M12: 6,558,221 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.8

Radius: 12.7

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.16 AU - 1.54 AU

Year: 1083 Days

Day: 9.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,669,438 km

• M1: 158,574 km (0.052 R)
• M2: 563,535 km (0.059 R)
• M3: 1,082,490 km (0.066 R)
• M4: 1,514,230 km (0.112 R)
• M5: 1,921,435 km (0.05 R)
• M6: 2,630,230 km (0.064 R)
• M7: 3,073,937 km (0.094 R)
• M8: 3,931,731 km (0.119 R)
• M9: 6,646,185 km (0.12 R)
• M10: 7,605,705 km (0.028 R)
• M11: 8,078,734 km (0.114 R)
• M12: 9,467,002 km (0.107 R)
• M13: 10,046,095 km (0.092 R)
• M14: 10,584,199 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.5

Radius: 14.5

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.14 AU - 2.76 AU

Year: 2647 Days

Day: 6.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 37,669,438 km

• M1: 182,809 km (0.06 R)
• M2: 748,887 km (0.057 R)
• M3: 1,912,160 km (0.12 R)
• M4: 2,726,421 km (0.116 R)
• M5: 3,995,011 km (0.089 R)
• M6: 4,751,677 km (0.105 R)
• M7: 6,834,828 km (0.119 R)
• M8: 7,888,445 km (0.059 R)
• M9: 9,257,565 km (0.116 R)
• M10: 9,906,521 km (0.104 R)
• M11: 12,122,065 km (0.106 R)
• M12: 14,316,815 km (0.079 R)
• M13: 15,533,345 km (0.05 R)
• M14: 17,083,179 km (0.112 R)
• M15: 17,950,697 km (0.076 R)
• M16: 18,847,387 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.1

Radius: 8.6

Gravity: 11.91 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.49 AU - 2.93 AU

Year: 3079 Days

Day: 10.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,669,438 km

• M1: 107,411 km (0.103 R)
• M2: 376,538 km (0.113 R)
• M3: 791,672 km (0.072 R)
• M4: 1,087,128 km (0.099 R)
• M5: 1,426,117 km (0.085 R)
• M6: 1,773,932 km (0.081 R)
• M7: 2,054,876 km (0.107 R)
• M8: 2,350,781 km (0.092 R)
• M9: 3,064,961 km (0.113 R)
• M10: 5,373,406 km (0.037 R)
• M11: 6,941,341 km (0.034 R)
• M12: 7,224,380 km (0.083 R)
• M13: 8,120,023 km (0.064 R)
• M14: 9,735,231 km (0.041 R)
• M15: 10,291,436 km (0.116 R)
• M16: 10,660,045 km (0.073 R)
• M17: 11,863,261 km (0.103 R)
• M18: 12,543,931 km (0.112 R)
• M19: 13,736,076 km (0.085 R)
• M20: 15,797,834 km (0.107 R)
• M21: 17,015,561 km (0.088 R)
• M22: 17,763,999 km (0.104 R)
• M23: 18,354,462 km (0.098 R)
• M24: 18,958,089 km (0.113 R)
• M25: 19,699,646 km (0.081 R)
• M26: 22,379,692 km (0.031 R)
• M27: 23,700,491 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87

Radius: 14.7

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.64 AU - 6.06 AU

Year: 8542 Days

Day: 9.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,669,438 km

• M1: 182,809 km (0.079 R)
• M2: 1,186,311 km (0.047 R)
• M3: 1,697,936 km (0.115 R)
• M4: 2,359,308 km (0.091 R)
• M5: 4,186,945 km (0.094 R)
• M6: 6,507,807 km (0.079 R)
• M7: 8,311,359 km (0.07 R)
• M8: 9,475,978 km (0.101 R)
• M9: 12,172,180 km (0.056 R)
• M10: 13,625,673 km (0.067 R)
• M11: 15,809,802 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 63.9

Radius: 4.5

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 5.09 AU - 7.37 AU

Year: 10734 Days

Day: 21.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,669,438 km

• M1: 61,634 km (0.089 R)
• M2: 257,608 km (0.082 R)
• M3: 533,915 km (0.115 R)
• M4: 759,808 km (0.08 R)
• M5: 918,381 km (0.058 R)
• M6: 1,457,083 km (0.074 R)
• M7: 1,752,240 km (0.102 R)
• M8: 1,940,135 km (0.112 R)
• M9: 2,225,717 km (0.117 R)
• M10: 4,048,268 km (0.102 R)
• M11: 4,221,802 km (0.101 R)
• M12: 4,893,047 km (0.038 R)
• M13: 6,099,554 km (0.107 R)
• M14: 7,954,268 km (0.094 R)
• M15: 9,156,437 km (0.062 R)
• M16: 12,590,456 km (0.117 R)
• M17: 13,386,317 km (0.094 R)
• M18: 14,769,349 km (0.079 R)
• M19: 15,077,670 km (0.104 R)
• M20: 17,243,698 km (0.059 R)
• M21: 18,998,331 km (0.117 R)
• M22: 21,126,660 km (0.104 R)
• M23: 21,649,505 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.4

Radius: 4.8

Gravity: 15.3 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 5.66 AU - 7.78 AU

Year: 12024 Days

Day: 16.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 141 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,669,438 km

• M1: 62,981 km (0.091 R)
• M2: 461,360 km (0.113 R)
• M3: 745,596 km (0.103 R)
• M4: 932,444 km (0.119 R)
• M5: 1,302,399 km (0.05 R)
• M6: 1,618,350 km (0.099 R)
• M7: 2,256,534 km (0.119 R)
• M8: 2,439,492 km (0.088 R)
• M9: 2,612,577 km (0.093 R)
• M10: 3,114,927 km (0.082 R)
• M11: 3,881,616 km (0.108 R)
• M12: 6,738,337 km (0.118 R)
• M13: 7,314,887 km (0.057 R)
• M14: 7,799,285 km (0.073 R)
• M15: 10,496,385 km (0.099 R)
• M16: 11,751,810 km (0.109 R)
• M17: 13,398,135 km (0.061 R)
• M18: 15,321,664 km (0.099 R)
• M19: 15,517,039 km (0.089 R)
• M20: 18,065,439 km (0.111 R)
• M21: 21,200,412 km (0.078 R)
• M22: 25,582,433 km (0.05 R)
• M23: 29,414,382 km (0.084 R)
• M24: 29,716,420 km (0.112 R)
• M25: 31,152,709 km (0.074 R)
• M26: 37,127,200 km (0.096 R)
• M27: 42,014,712 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.6

Radius: 7.3

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 8.2 AU - 10 AU

Year: 18948 Days

Day: 15.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,669,438 km

• M1: 96,042 km (0.069 R)
• M2: 373,695 km (0.093 R)
• M3: 650,152 km (0.114 R)
• M4: 1,115,551 km (0.082 R)
• M5: 1,357,152 km (0.087 R)
• M6: 2,459,987 km (0.099 R)
• M7: 3,402,304 km (0.11 R)
• M8: 4,351,503 km (0.086 R)
• M9: 5,717,182 km (0.066 R)
• M10: 6,241,223 km (0.081 R)
• M11: 7,652,679 km (0.117 R)
• M12: 7,966,685 km (0.112 R)
• M13: 8,330,208 km (0.096 R)
• M14: 11,699,451 km (0.079 R)
• M15: 12,169,338 km (0.114 R)
• M16: 14,529,992 km (0.114 R)
• M17: 15,011,997 km (0.11 R)
• M18: 24,243,981 km (0.105 R)
• M19: 25,351,902 km (0.12 R)
• M20: 37,220,249 km (0.118 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 151 - 16,594 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit