🌌 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 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.61 AU - 0.65 AU

Year: 323 Days

Day: 44.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 27.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.1

Radius: 10.6

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.84 AU - 0.9 AU

Year: 524 Days

Day: 12.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 91,446,241 km

• M1: 131,945 km (0.1 R)
• M2: 500,854 km (0.058 R)
• M3: 899,233 km (0.102 R)
• M4: 1,305,989 km (0.102 R)
• M5: 1,689,259 km (0.099 R)
• M6: 2,029,594 km (0.048 R)
• M7: 2,679,298 km (0.113 R)
• M8: 3,787,369 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.5

Radius: 14.5

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.49 AU - 1.73 AU

Year: 1319 Days

Day: 10.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 91,446,241 km

• M1: 181,612 km (0.069 R)
• M2: 635,791 km (0.096 R)
• M3: 1,132,905 km (0.039 R)
• M4: 1,726,958 km (0.026 R)
• M5: 2,209,561 km (0.103 R)
• M6: 3,645,102 km (0.108 R)
• M7: 4,832,759 km (0.071 R)
• M8: 5,570,426 km (0.1 R)
• M9: 6,103,144 km (0.05 R)
• M10: 7,168,880 km (0.104 R)
• M11: 9,236,771 km (0.106 R)
• M12: 9,794,921 km (0.056 R)
• M13: 11,150,876 km (0.096 R)
• M14: 12,779,398 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.4

Radius: 14.2

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.59 AU - 2.09 AU

Year: 1612 Days

Day: 12.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 91,446,241 km

• M1: 181,013 km (0.119 R)
• M2: 666,608 km (0.106 R)
• M3: 1,221,467 km (0.084 R)
• M4: 1,804,599 km (0.117 R)
• M5: 2,466,869 km (0.096 R)
• M6: 3,737,703 km (0.104 R)
• M7: 5,729,449 km (0.045 R)
• M8: 6,486,713 km (0.063 R)
• M9: 8,941,315 km (0.088 R)
• M10: 12,832,505 km (0.089 R)
• M11: 13,915,594 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.4

Radius: 10.5

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.64 AU - 2.68 AU

Year: 2050 Days

Day: 13.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,446,241 km

• M1: 130,599 km (0.081 R)
• M2: 589,565 km (0.116 R)
• M3: 932,444 km (0.106 R)
• M4: 1,337,255 km (0.049 R)
• M5: 1,827,488 km (0.096 R)
• M6: 2,975,801 km (0.04 R)
• M7: 3,412,028 km (0.076 R)
• M8: 3,819,682 km (0.12 R)
• M9: 4,317,095 km (0.117 R)
• M10: 4,836,499 km (0.039 R)
• M11: 5,397,192 km (0.07 R)
• M12: 6,294,181 km (0.049 R)
• M13: 7,679,008 km (0.106 R)
• M14: 8,503,891 km (0.049 R)
• M15: 8,875,043 km (0.075 R)
• M16: 10,225,762 km (0.094 R)
• M17: 10,610,379 km (0.039 R)
• M18: 11,187,078 km (0.075 R)
• M19: 12,561,284 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.8

Radius: 12.5

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.17 AU - 3.29 AU

Year: 3748 Days

Day: 14.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 91,446,241 km

• M1: 155,432 km (0.03 R)
• M2: 576,999 km (0.119 R)
• M3: 975,079 km (0.1 R)
• M4: 1,890,019 km (0.075 R)
• M5: 2,392,220 km (0.051 R)
• M6: 3,238,345 km (0.05 R)
• M7: 4,073,251 km (0.044 R)
• M8: 4,673,737 km (0.107 R)
• M9: 5,629,817 km (0.078 R)
• M10: 6,287,299 km (0.081 R)
• M11: 6,868,487 km (0.059 R)
• M12: 8,068,262 km (0.115 R)
• M13: 8,681,164 km (0.117 R)
• M14: 9,718,626 km (0.052 R)
• M15: 10,581,357 km (0.112 R)
• M16: 14,032,280 km (0.074 R)
• M17: 14,707,715 km (0.092 R)
• M18: 15,955,959 km (0.056 R)
• M19: 17,509,982 km (0.092 R)
• M20: 20,059,578 km (0.083 R)
• M21: 21,253,519 km (0.099 R)
• M22: 24,075,683 km (0.075 R)
• M23: 24,594,040 km (0.083 R)
• M24: 25,423,709 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.3

Radius: 14.3

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 4.27 AU - 4.47 AU

Year: 5898 Days

Day: 11.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 91,446,241 km

• M1: 178,470 km (0.092 R)
• M2: 1,158,187 km (0.086 R)
• M3: 1,677,890 km (0.115 R)
• M4: 2,256,833 km (0.066 R)
• M5: 4,365,415 km (0.103 R)
• M6: 5,182,519 km (0.089 R)
• M7: 6,099,704 km (0.112 R)
• M8: 7,194,610 km (0.117 R)
• M9: 8,825,975 km (0.11 R)
• M10: 10,088,581 km (0.114 R)
• M11: 13,297,605 km (0.053 R)
• M12: 14,836,219 km (0.088 R)
• M13: 15,374,622 km (0.089 R)
• M14: 15,926,040 km (0.026 R)
• M15: 17,329,866 km (0.101 R)
• M16: 18,401,585 km (0.069 R)
• M17: 19,375,168 km (0.088 R)
• M18: 21,805,984 km (0.055 R)
• M19: 23,134,563 km (0.108 R)
• M20: 25,101,176 km (0.118 R)
• M21: 25,780,949 km (0.119 R)
• M22: 33,986,542 km (0.079 R)
• M23: 34,505,048 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 93.6

Radius: 6.2

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.46 AU - 10.34 AU

Year: 18608 Days

Day: 24.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 91,446,241 km

• M1: 119,080 km (0.117 R)
• M2: 1,287,140 km (0.097 R)
• M3: 3,295,791 km (0.058 R)
• M4: 4,199,212 km (0.115 R)
• M5: 5,138,687 km (0.085 R)
• M6: 5,913,753 km (0.111 R)
• M7: 8,537,550 km (0.108 R)
• M8: 9,264,746 km (0.097 R)
• M9: 10,599,458 km (0.108 R)
• M10: 12,110,097 km (0.11 R)
• M11: 21,855,202 km (0.043 R)
• M12: 22,806,644 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.7

Radius: 7

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.34 AU - 11.98 AU

Year: 20910 Days

Day: 24.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 91,446,241 km

• M1: 87,066 km (0.102 R)
• M2: 529,277 km (0.094 R)
• M3: 827,575 km (0.089 R)
• M4: 2,437,548 km (0.111 R)
• M5: 4,076,392 km (0.118 R)
• M6: 6,119,600 km (0.119 R)
• M7: 6,529,049 km (0.093 R)
• M8: 7,036,485 km (0.06 R)
• M9: 9,091,960 km (0.064 R)
• M10: 15,674,865 km (0.062 R)
• M11: 17,379,084 km (0.073 R)
• M12: 18,124,380 km (0.09 R)
• M13: 18,658,594 km (0.117 R)
• M14: 20,080,522 km (0.106 R)
• M15: 20,817,890 km (0.053 R)
• M16: 21,319,342 km (0.074 R)
• M17: 22,433,697 km (0.086 R)
• M18: 23,948,674 km (0.068 R)
• M19: 28,083,111 km (0.112 R)
• M20: 33,119,772 km (0.066 R)
• M21: 34,728,996 km (0.117 R)
• M22: 36,389,682 km (0.073 R)
• M23: 37,854,544 km (0.114 R)
• M24: 41,032,153 km (0.045 R)
• M25: 43,291,529 km (0.105 R)
• M26: 46,478,712 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.4

Radius: 6.1

Gravity: 24.68 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 9.25 AU - 12.26 AU

Year: 22758 Days

Day: 21.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 91,446,241 km

• M1: 77,342 km (0.051 R)
• M2: 267,481 km (0.112 R)
• M3: 712,535 km (0.077 R)
• M4: 1,144,573 km (0.116 R)
• M5: 1,436,140 km (0.096 R)
• M6: 1,644,978 km (0.091 R)
• M7: 3,827,910 km (0.066 R)
• M8: 6,145,630 km (0.111 R)
• M9: 6,701,237 km (0.081 R)
• M10: 7,493,507 km (0.117 R)
• M11: 8,073,348 km (0.054 R)
• M12: 8,569,564 km (0.069 R)
• M13: 9,027,633 km (0.095 R)
• M14: 9,992,390 km (0.115 R)
• M15: 10,371,321 km (0.027 R)
• M16: 14,463,421 km (0.091 R)
• M17: 16,294,499 km (0.093 R)
• M18: 17,537,059 km (0.119 R)
• M19: 19,713,409 km (0.115 R)
• M20: 24,593,890 km (0.091 R)
• M21: 26,946,017 km (0.074 R)
• M22: 29,702,059 km (0.09 R)
• M23: 33,055,445 km (0.09 R)
• M24: 34,895,050 km (0.073 R)
• M25: 36,951,422 km (0.067 R)
• M26: 41,142,706 km (0.113 R)
• M27: 41,789,417 km (0.073 R)
• M28: 45,125,001 km (0.104 R)
• M29: 50,270,420 km (0.114 R)
• M30: 52,320,210 km (0.079 R)
• M31: 53,079,269 km (0.107 R)
• M32: 56,188,661 km (0.036 R)
• M33: 64,272,332 km (0.106 R)
• M34: 65,361,554 km (0.078 R)
• M35: 65,580,864 km (0.072 R)
• M36: 66,020,981 km (0.074 R)
• M37: 85,285,596 km (0.113 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 13,526 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit