🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

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: 230.6

Radius: 11.6

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.73 AU - 1.01 AU

Year: 524 Days

Day: 9.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,151,511 km

• M1: 144,212 km (0.028 R)
• M2: 519,254 km (0.072 R)
• M3: 1,073,514 km (0.078 R)
• M4: 1,517,371 km (0.045 R)
• M5: 1,918,892 km (0.066 R)
• M6: 2,332,979 km (0.108 R)
• M7: 2,740,783 km (0.096 R)
• M8: 3,165,042 km (0.08 R)
• M9: 3,656,172 km (0.114 R)
• M10: 4,023,584 km (0.083 R)
• M11: 4,507,982 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204

Radius: 12.5

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.1 AU - 1.8 AU

Year: 1127 Days

Day: 13.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,151,511 km

• M1: 155,432 km (0.043 R)
• M2: 630,705 km (0.12 R)
• M3: 1,058,854 km (0.074 R)
• M4: 1,840,353 km (0.12 R)
• M5: 2,740,334 km (0.055 R)
• M6: 3,155,767 km (0.11 R)
• M7: 4,322,780 km (0.091 R)
• M8: 5,089,320 km (0.105 R)
• M9: 5,613,211 km (0.107 R)
• M10: 6,387,231 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.2

Radius: 13.7

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.4 AU - 2 AU

Year: 1431 Days

Day: 15 Hours

Environment

Temp: -193 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,151,511 km

• M1: 170,392 km (0.11 R)
• M2: 610,060 km (0.092 R)
• M3: 1,164,619 km (0.066 R)
• M4: 1,645,577 km (0.116 R)
• M5: 2,152,115 km (0.073 R)
• M6: 2,636,812 km (0.079 R)
• M7: 3,961,950 km (0.077 R)
• M8: 5,179,078 km (0.074 R)
• M9: 5,671,405 km (0.079 R)
• M10: 6,172,558 km (0.083 R)
• M11: 6,632,272 km (0.117 R)
• M12: 7,466,729 km (0.088 R)
• M13: 8,043,130 km (0.099 R)
• M14: 8,536,802 km (0.048 R)
• M15: 9,953,046 km (0.106 R)
• M16: 11,114,075 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.3

Radius: 14.8

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.45 AU - 2.37 AU

Year: 1704 Days

Day: 10.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,151,511 km

• M1: 184,305 km (0.071 R)
• M2: 1,366,577 km (0.103 R)
• M3: 2,143,737 km (0.071 R)
• M4: 2,697,399 km (0.089 R)
• M5: 3,188,978 km (0.049 R)
• M6: 4,462,504 km (0.086 R)
• M7: 5,396,893 km (0.098 R)
• M8: 6,504,366 km (0.112 R)
• M9: 8,402,015 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.2

Radius: 9.9

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.55 AU - 4.05 AU

Year: 3871 Days

Day: 10.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,151,511 km

• M1: 123,119 km (0.117 R)
• M2: 435,180 km (0.103 R)
• M3: 872,604 km (0.078 R)
• M4: 1,463,516 km (0.053 R)
• M5: 1,895,255 km (0.033 R)
• M6: 2,964,132 km (0.084 R)
• M7: 3,339,174 km (0.089 R)
• M8: 4,185,449 km (0.053 R)
• M9: 5,518,965 km (0.114 R)
• M10: 6,089,531 km (0.068 R)
• M11: 7,517,293 km (0.083 R)
• M12: 7,933,175 km (0.108 R)
• M13: 9,001,753 km (0.117 R)
• M14: 10,543,808 km (0.075 R)
• M15: 11,065,455 km (0.061 R)
• M16: 13,426,558 km (0.095 R)
• M17: 13,987,999 km (0.098 R)
• M18: 15,267,061 km (0.056 R)
• M19: 17,994,978 km (0.112 R)
• M20: 20,359,373 km (0.107 R)
• M21: 21,374,394 km (0.09 R)
• M22: 23,799,525 km (0.083 R)
• M23: 25,001,993 km (0.12 R)
• M24: 26,481,815 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.6

Radius: 13.8

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 5.5 AU - 6.28 AU

Year: 9230 Days

Day: 11.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,151,511 km

• M1: 175,628 km (0.067 R)
• M2: 1,232,986 km (0.088 R)
• M3: 3,137,965 km (0.108 R)
• M4: 3,677,265 km (0.041 R)
• M5: 4,782,644 km (0.104 R)
• M6: 5,576,261 km (0.12 R)
• M7: 6,456,195 km (0.12 R)
• M8: 6,974,103 km (0.069 R)
• M9: 10,336,764 km (0.064 R)
• M10: 11,706,482 km (0.078 R)
• M11: 19,516,987 km (0.096 R)
• M12: 20,176,414 km (0.05 R)
• M13: 20,788,868 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 916.2

Radius: 3.5

Gravity: 74.79 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.27 AU - 7.07 AU

Year: 11123 Days

Day: 17.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 60,151,511 km

• M1: 45,777 km (0.085 R)
• M2: 156,779 km (0.097 R)
• M3: 279,898 km (0.116 R)
• M4: 444,455 km (0.11 R)
• M5: 568,173 km (0.11 R)
• M6: 1,039,256 km (0.115 R)
• M7: 1,354,908 km (0.079 R)
• M8: 2,079,410 km (0.058 R)
• M9: 2,329,538 km (0.079 R)
• M10: 3,201,394 km (0.114 R)
• M11: 3,508,369 km (0.116 R)
• M12: 4,453,977 km (0.084 R)
• M13: 5,666,169 km (0.053 R)
• M14: 6,153,260 km (0.087 R)
• M15: 9,833,218 km (0.061 R)
• M16: 10,424,728 km (0.081 R)
• M17: 14,074,317 km (0.03 R)
• M18: 14,208,806 km (0.062 R)
• M19: 14,824,551 km (0.075 R)
• M20: 15,601,113 km (0.077 R)
• M21: 16,853,995 km (0.107 R)
• M22: 17,856,151 km (0.107 R)
• M23: 19,308,448 km (0.11 R)
• M24: 20,750,721 km (0.102 R)
• M25: 23,657,258 km (0.083 R)
• M26: 24,134,624 km (0.091 R)
• M27: 24,327,307 km (0.083 R)
• M28: 25,805,633 km (0.092 R)
• M29: 28,508,118 km (0.047 R)
• M30: 28,831,549 km (0.084 R)
• M31: 29,927,353 km (0.059 R)
• M32: 30,038,504 km (0.112 R)
• M33: 40,114,968 km (0.063 R)
• M34: 41,617,529 km (0.071 R)
• M35: 43,015,671 km (0.088 R)
• M36: 46,201,058 km (0.072 R)
• M37: 49,230,266 km (0.058 R)
• M38: 49,695,665 km (0.1 R)
• M39: 56,693,853 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 303.3

Radius: 3.3

Gravity: 27.85 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.49 AU - 11.97 AU

Year: 21127 Days

Day: 19.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,151,511 km

• M1: 42,187 km (0.112 R)
• M2: 185,651 km (0.074 R)
• M3: 301,290 km (0.075 R)
• M4: 781,948 km (0.027 R)
• M5: 1,109,717 km (0.076 R)
• M6: 1,304,793 km (0.094 R)
• M7: 3,391,833 km (0.096 R)
• M8: 5,930,209 km (0.103 R)
• M9: 12,137,025 km (0.079 R)
• M10: 13,089,963 km (0.101 R)
• M11: 15,724,831 km (0.079 R)
• M12: 23,233,297 km (0.037 R)
• M13: 23,617,764 km (0.038 R)
• M14: 31,049,038 km (0.107 R)
• M15: 34,040,098 km (0.081 R)
• M16: 36,051,890 km (0.109 R)
• M17: 40,172,414 km (0.109 R)
• M18: 50,447,394 km (0.112 R)
• M19: 50,768,730 km (0.054 R)
• M20: 56,270,790 km (0.114 R)
• M21: 57,312,141 km (0.068 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 535 - 16,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit