🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.8

Radius: 9.1

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.41 AU - 0.61 AU

Year: 251 Days

Day: 14.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,945,409 km

• M1: 113,096 km (0.116 R)
• M2: 430,842 km (0.049 R)
• M3: 750,981 km (0.074 R)
• M4: 1,168,958 km (0.085 R)
• M5: 1,457,831 km (0.114 R)
• M6: 1,872,517 km (0.086 R)
• M7: 2,169,768 km (0.114 R)
• M8: 2,756,490 km (0.107 R)
• M9: 3,219,795 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.3

Radius: 10

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.87 AU - 1.19 AU

Year: 722 Days

Day: 11.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,945,409 km

• M1: 124,316 km (0.098 R)
• M2: 474,076 km (0.084 R)
• M3: 958,025 km (0.041 R)
• M4: 1,322,296 km (0.097 R)
• M5: 1,694,196 km (0.119 R)
• M6: 2,062,655 km (0.074 R)
• M7: 2,503,072 km (0.045 R)
• M8: 2,851,186 km (0.059 R)
• M9: 3,264,824 km (0.101 R)
• M10: 3,992,468 km (0.049 R)
• M11: 4,695,129 km (0.103 R)
• M12: 5,106,374 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.5

Radius: 9.1

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.57 AU - 2.39 AU

Year: 1923 Days

Day: 10.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,945,409 km

• M1: 124,316 km (0.104 R)
• M2: 707,598 km (0.07 R)
• M3: 1,174,343 km (0.06 R)
• M4: 1,533,229 km (0.099 R)
• M5: 1,856,958 km (0.108 R)
• M6: 2,281,667 km (0.093 R)
• M7: 3,269,910 km (0.082 R)
• M8: 4,793,415 km (0.071 R)
• M9: 5,535,121 km (0.117 R)
• M10: 6,107,333 km (0.079 R)
• M11: 7,878,572 km (0.113 R)
• M12: 8,221,899 km (0.076 R)
• M13: 10,401,839 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.6

Radius: 12.5

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.29 AU - 3.15 AU

Year: 3096 Days

Day: 9.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,945,409 km

• M1: 155,582 km (0.068 R)
• M2: 636,539 km (0.066 R)
• M3: 1,030,430 km (0.094 R)
• M4: 1,847,085 km (0.093 R)
• M5: 2,591,334 km (0.089 R)
• M6: 3,365,802 km (0.048 R)
• M7: 3,808,014 km (0.093 R)
• M8: 4,458,465 km (0.109 R)
• M9: 5,229,493 km (0.052 R)
• M10: 5,929,611 km (0.105 R)
• M11: 7,425,440 km (0.081 R)
• M12: 8,343,821 km (0.077 R)
• M13: 8,882,074 km (0.12 R)
• M14: 10,754,142 km (0.099 R)
• M15: 11,637,966 km (0.09 R)
• M16: 13,413,843 km (0.072 R)
• M17: 15,513,748 km (0.056 R)
• M18: 16,019,987 km (0.079 R)
• M19: 16,853,098 km (0.107 R)
• M20: 19,819,623 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.3

Radius: 9

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.82 AU - 3.66 AU

Year: 4026 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,945,409 km

• M1: 112,049 km (0.063 R)
• M2: 484,697 km (0.042 R)
• M3: 787,633 km (0.116 R)
• M4: 1,121,834 km (0.069 R)
• M5: 1,520,662 km (0.115 R)
• M6: 1,856,958 km (0.112 R)
• M7: 2,351,080 km (0.119 R)
• M8: 2,898,908 km (0.06 R)
• M9: 3,828,958 km (0.073 R)
• M10: 4,125,460 km (0.055 R)
• M11: 4,992,081 km (0.111 R)
• M12: 5,419,632 km (0.101 R)
• M13: 6,321,108 km (0.098 R)
• M14: 7,653,726 km (0.098 R)
• M15: 8,094,292 km (0.107 R)
• M16: 8,518,252 km (0.068 R)
• M17: 11,300,773 km (0.051 R)
• M18: 12,678,719 km (0.119 R)
• M19: 14,542,708 km (0.103 R)
• M20: 15,765,072 km (0.069 R)
• M21: 18,357,304 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.9

Radius: 11.1

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.49 AU - 6.33 AU

Year: 8686 Days

Day: 14.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,945,409 km

• M1: 138,228 km (0.094 R)
• M2: 1,535,173 km (0.073 R)
• M3: 2,512,945 km (0.072 R)
• M4: 6,428,071 km (0.072 R)
• M5: 9,667,463 km (0.072 R)
• M6: 10,382,840 km (0.096 R)
• M7: 13,243,750 km (0.1 R)
• M8: 17,680,224 km (0.111 R)
• M9: 20,673,977 km (0.113 R)
• M10: 26,254,426 km (0.095 R)
• M11: 27,149,321 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94

Radius: 7.5

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.01 AU - 6.15 AU

Year: 10348 Days

Day: 16.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 64.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,945,409 km

• M1: 93,349 km (0.097 R)
• M2: 606,021 km (0.06 R)
• M3: 3,436,263 km (0.044 R)
• M4: 3,952,376 km (0.104 R)
• M5: 4,542,689 km (0.076 R)
• M6: 5,112,806 km (0.076 R)
• M7: 5,348,423 km (0.118 R)
• M8: 5,757,424 km (0.093 R)
• M9: 6,515,586 km (0.069 R)
• M10: 7,371,435 km (0.104 R)
• M11: 8,480,554 km (0.063 R)
• M12: 9,304,988 km (0.117 R)
• M13: 10,181,631 km (0.105 R)
• M14: 20,038,784 km (0.087 R)
• M15: 22,320,002 km (0.073 R)
• M16: 24,250,712 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.3

Radius: 6.7

Gravity: 20.35 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 5.13 AU - 8.15 AU

Year: 11810 Days

Day: 19.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,945,409 km

• M1: 123,418 km (0.102 R)
• M2: 333,603 km (0.119 R)
• M3: 886,966 km (0.039 R)
• M4: 1,141,881 km (0.038 R)
• M5: 1,460,374 km (0.072 R)
• M6: 2,048,444 km (0.12 R)
• M7: 2,607,042 km (0.095 R)
• M8: 3,766,426 km (0.09 R)
• M9: 4,169,891 km (0.118 R)
• M10: 4,665,958 km (0.104 R)
• M11: 6,116,907 km (0.095 R)
• M12: 8,896,286 km (0.112 R)
• M13: 9,507,393 km (0.064 R)
• M14: 12,172,330 km (0.112 R)
• M15: 13,443,912 km (0.093 R)
• M16: 14,523,111 km (0.037 R)
• M17: 17,005,987 km (0.11 R)
• M18: 17,628,763 km (0.09 R)
• M19: 18,186,164 km (0.09 R)
• M20: 19,588,644 km (0.068 R)
• M21: 20,186,587 km (0.115 R)
• M22: 23,075,920 km (0.111 R)
• M23: 23,646,786 km (0.117 R)
• M24: 23,935,659 km (0.12 R)
• M25: 26,435,739 km (0.103 R)
• M26: 27,376,710 km (0.027 R)
• M27: 31,713,851 km (0.12 R)
• M28: 34,598,696 km (0.083 R)
• M29: 38,047,825 km (0.067 R)
• M30: 38,710,693 km (0.062 R)
• M31: 40,745,673 km (0.101 R)
• M32: 45,323,218 km (0.072 R)
• M33: 45,918,468 km (0.115 R)
• M34: 47,735,633 km (0.098 R)
• M35: 49,915,424 km (0.108 R)
• M36: 50,232,123 km (0.101 R)
• M37: 54,138,123 km (0.071 R)
• M38: 54,640,173 km (0.047 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 16,316 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit