🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.5

Radius: 8.5

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.5 AU - 0.71 AU

Year: 321 Days

Day: 6.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,930,410 km

• M1: 111,002 km (0.115 R)
• M2: 602,131 km (0.08 R)
• M3: 990,188 km (0.095 R)
• M4: 1,389,016 km (0.098 R)
• M5: 2,151,965 km (0.08 R)
• M6: 2,435,005 km (0.052 R)
• M7: 2,802,567 km (0.06 R)
• M8: 3,169,530 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.4

Radius: 11.7

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.58 AU - 0.76 AU

Year: 379 Days

Day: 8.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 71.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,930,410 km

• M1: 145,559 km (0.116 R)
• M2: 638,334 km (0.091 R)
• M3: 1,029,383 km (0.104 R)
• M4: 1,593,217 km (0.107 R)
• M5: 2,120,101 km (0.049 R)
• M6: 2,792,095 km (0.099 R)
• M7: 3,167,585 km (0.062 R)
• M8: 3,638,370 km (0.115 R)
• M9: 4,223,746 km (0.106 R)
• M10: 4,633,644 km (0.093 R)
• M11: 5,484,707 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.3

Radius: 9.3

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.72 AU - 0.88 AU

Year: 494 Days

Day: 11.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,930,410 km

• M1: 115,639 km (0.109 R)
• M2: 467,493 km (0.115 R)
• M3: 756,666 km (0.063 R)
• M4: 1,114,504 km (0.102 R)
• M5: 1,417,440 km (0.098 R)
• M6: 1,815,969 km (0.078 R)
• M7: 2,113,369 km (0.088 R)
• M8: 3,032,947 km (0.085 R)
• M9: 3,455,412 km (0.077 R)
• M10: 3,848,405 km (0.061 R)
• M11: 4,141,168 km (0.069 R)
• M12: 4,646,809 km (0.038 R)
• M13: 5,093,807 km (0.076 R)
• M14: 5,586,732 km (0.068 R)
• M15: 5,926,768 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.7

Radius: 9.3

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.66 AU - 0.98 AU

Year: 513 Days

Day: 7.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,930,410 km

• M1: 115,639 km (0.049 R)
• M2: 410,646 km (0.05 R)
• M3: 824,583 km (0.067 R)
• M4: 1,241,363 km (0.035 R)
• M5: 1,874,312 km (0.101 R)
• M6: 2,264,613 km (0.104 R)
• M7: 3,258,840 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.8

Radius: 14.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.69 AU - 1.11 AU

Year: 589 Days

Day: 11.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 37,930,410 km

• M1: 184,305 km (0.117 R)
• M2: 683,812 km (0.059 R)
• M3: 1,329,626 km (0.081 R)
• M4: 2,429,021 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.6

Radius: 8.6

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.88 AU - 1.42 AU

Year: 851 Days

Day: 12.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,930,410 km

• M1: 106,962 km (0.1 R)
• M2: 519,853 km (0.102 R)
• M3: 882,478 km (0.056 R)
• M4: 1,425,219 km (0.117 R)
• M5: 2,081,954 km (0.115 R)
• M6: 2,822,014 km (0.112 R)
• M7: 3,397,966 km (0.119 R)
• M8: 4,563,483 km (0.114 R)
• M9: 5,552,774 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.5

Radius: 12.5

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.08 AU - 1.22 AU

Year: 851 Days

Day: 8.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,930,410 km

• M1: 155,582 km (0.12 R)
• M2: 945,159 km (0.071 R)
• M3: 1,372,411 km (0.117 R)
• M4: 1,820,756 km (0.083 R)
• M5: 2,229,008 km (0.093 R)
• M6: 2,627,836 km (0.083 R)
• M7: 3,262,281 km (0.09 R)
• M8: 3,903,308 km (0.069 R)
• M9: 4,387,406 km (0.072 R)
• M10: 5,021,253 km (0.115 R)
• M11: 6,385,136 km (0.074 R)
• M12: 6,784,563 km (0.041 R)
• M13: 7,907,145 km (0.116 R)
• M14: 9,630,064 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.7

Radius: 13.5

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.05 AU - 1.47 AU

Year: 976 Days

Day: 14.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 85.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,930,410 km

• M1: 167,998 km (0.061 R)
• M2: 706,401 km (0.063 R)
• M3: 1,287,290 km (0.092 R)
• M4: 1,896,452 km (0.109 R)
• M5: 2,511,150 km (0.09 R)
• M6: 2,992,855 km (0.104 R)
• M7: 4,511,872 km (0.079 R)
• M8: 5,053,416 km (0.073 R)
• M9: 6,335,919 km (0.109 R)
• M10: 7,694,866 km (0.096 R)
• M11: 8,582,131 km (0.066 R)
• M12: 9,181,569 km (0.07 R)
• M13: 11,049,748 km (0.115 R)
• M14: 11,485,825 km (0.097 R)

Planet 9 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.6

Radius: 14.4

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.21 AU - 1.95 AU

Year: 1371 Days

Day: 12.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,930,410 km

• M1: 180,864 km (0.116 R)
• M2: 840,291 km (0.105 R)
• M3: 1,640,939 km (0.118 R)
• M4: 2,665,385 km (0.114 R)
• M5: 4,248,280 km (0.106 R)
• M6: 5,727,354 km (0.083 R)
• M7: 7,083,758 km (0.051 R)
• M8: 7,664,348 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.8

Radius: 3.3

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.29 AU - 10.17 AU

Year: 16297 Days

Day: 19.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,930,410 km

• M1: 43,234 km (0.107 R)
• M2: 171,439 km (0.105 R)
• M3: 335,099 km (0.049 R)
• M4: 578,046 km (0.104 R)
• M5: 829,071 km (0.052 R)
• M6: 994,078 km (0.105 R)
• M7: 1,583,493 km (0.047 R)
• M8: 2,788,504 km (0.039 R)
• M9: 2,970,266 km (0.112 R)
• M10: 3,181,348 km (0.111 R)
• M11: 3,681,155 km (0.118 R)
• M12: 4,636,487 km (0.059 R)
• M13: 6,448,566 km (0.111 R)
• M14: 6,984,276 km (0.097 R)
• M15: 8,514,961 km (0.062 R)
• M16: 9,380,534 km (0.101 R)
• M17: 11,642,155 km (0.096 R)
• M18: 12,007,323 km (0.111 R)
• M19: 12,705,796 km (0.117 R)
• M20: 18,369,571 km (0.056 R)
• M21: 22,020,358 km (0.051 R)
• M22: 22,982,870 km (0.105 R)
• M23: 25,598,440 km (0.102 R)
• M24: 27,387,032 km (0.057 R)
• M25: 35,484,316 km (0.108 R)
• M26: 37,140,364 km (0.114 R)
• M27: 37,252,413 km (0.117 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: 218 - 11,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit