🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.3

Radius: 8.2

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.73 AU - 0.75 AU

Year: 424 Days

Day: 7.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,320,359 km

• M1: 108,907 km (0.095 R)
• M2: 445,502 km (0.072 R)
• M3: 765,941 km (0.107 R)
• M4: 1,125,874 km (0.069 R)
• M5: 1,707,061 km (0.091 R)
• M6: 2,019,721 km (0.091 R)
• M7: 2,666,432 km (0.095 R)
• M8: 3,005,571 km (0.119 R)
• M9: 3,495,504 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.8

Radius: 14.6

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.72 AU - 1.02 AU

Year: 541 Days

Day: 11 Hours

Environment

Temp: -159 °C

Axial Tilt: 144.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,320,359 km

• M1: 181,612 km (0.098 R)
• M2: 705,055 km (0.087 R)
• M3: 1,315,414 km (0.103 R)
• M4: 1,864,289 km (0.066 R)
• M5: 2,741,381 km (0.053 R)
• M6: 3,742,191 km (0.045 R)
• M7: 4,314,253 km (0.087 R)
• M8: 5,065,833 km (0.072 R)
• M9: 5,702,072 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.7

Radius: 11.5

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.82 AU - 1.08 AU

Year: 617 Days

Day: 8.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,320,359 km

• M1: 143,165 km (0.085 R)
• M2: 588,368 km (0.119 R)
• M3: 1,188,555 km (0.117 R)
• M4: 1,779,616 km (0.105 R)
• M5: 2,211,505 km (0.056 R)
• M6: 2,691,266 km (0.114 R)
• M7: 3,329,600 km (0.067 R)
• M8: 3,720,200 km (0.095 R)
• M9: 4,111,548 km (0.1 R)
• M10: 4,530,272 km (0.106 R)
• M11: 4,909,353 km (0.104 R)
• M12: 5,345,581 km (0.077 R)
• M13: 6,058,415 km (0.081 R)
• M14: 6,897,359 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.3

Radius: 14.8

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.82 AU - 1.22 AU

Year: 687 Days

Day: 9.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,320,359 km

• M1: 184,454 km (0.09 R)
• M2: 669,151 km (0.097 R)
• M3: 1,338,153 km (0.073 R)
• M4: 1,821,204 km (0.107 R)
• M5: 2,372,024 km (0.065 R)
• M6: 2,939,449 km (0.091 R)
• M7: 3,450,176 km (0.114 R)
• M8: 5,037,260 km (0.063 R)
• M9: 5,737,378 km (0.097 R)
• M10: 6,219,681 km (0.061 R)
• M11: 6,771,099 km (0.111 R)
• M12: 7,310,848 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.8

Radius: 8.2

Gravity: 10.99 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.48 AU - 1.58 AU

Year: 1262 Days

Day: 10.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,320,359 km

• M1: 102,923 km (0.115 R)
• M2: 478,115 km (0.083 R)
• M3: 812,915 km (0.093 R)
• M4: 1,197,531 km (0.098 R)
• M5: 1,589,627 km (0.081 R)
• M6: 2,164,980 km (0.029 R)
• M7: 2,570,241 km (0.062 R)
• M8: 3,362,811 km (0.066 R)
• M9: 3,676,667 km (0.111 R)
• M10: 4,756,913 km (0.118 R)
• M11: 5,235,327 km (0.09 R)
• M12: 5,507,595 km (0.086 R)
• M13: 5,855,859 km (0.093 R)
• M14: 6,548,348 km (0.117 R)
• M15: 7,014,495 km (0.075 R)
• M16: 7,346,003 km (0.089 R)
• M17: 11,262,027 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.9

Radius: 14.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.51 AU - 3.63 AU

Year: 3587 Days

Day: 14.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 165.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,320,359 km

• M1: 179,069 km (0.109 R)
• M2: 730,786 km (0.077 R)
• M3: 1,506,750 km (0.109 R)
• M4: 2,167,374 km (0.065 R)
• M5: 2,702,635 km (0.108 R)
• M6: 3,512,558 km (0.107 R)
• M7: 5,190,448 km (0.073 R)
• M8: 5,907,321 km (0.108 R)
• M9: 6,640,350 km (0.058 R)
• M10: 7,275,094 km (0.083 R)
• M11: 9,147,311 km (0.083 R)
• M12: 9,677,785 km (0.07 R)
• M13: 11,971,869 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.9

Radius: 10.6

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.41 AU - 5.27 AU

Year: 6029 Days

Day: 15 Hours

Environment

Temp: -217 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,320,359 km

• M1: 131,796 km (0.079 R)
• M2: 555,457 km (0.057 R)
• M3: 1,375,702 km (0.086 R)
• M4: 1,919,341 km (0.059 R)
• M5: 2,805,110 km (0.085 R)
• M6: 3,301,775 km (0.1 R)
• M7: 3,664,849 km (0.114 R)
• M8: 4,145,058 km (0.058 R)
• M9: 4,918,180 km (0.11 R)
• M10: 5,615,006 km (0.037 R)
• M11: 6,285,205 km (0.075 R)
• M12: 7,205,232 km (0.115 R)
• M13: 7,715,061 km (0.102 R)
• M14: 8,731,429 km (0.099 R)
• M15: 10,677,847 km (0.107 R)
• M16: 11,028,505 km (0.053 R)
• M17: 11,477,448 km (0.08 R)
• M18: 12,996,764 km (0.083 R)
• M19: 13,804,742 km (0.07 R)
• M20: 14,326,539 km (0.098 R)
• M21: 15,354,277 km (0.097 R)
• M22: 15,801,425 km (0.117 R)
• M23: 19,697,701 km (0.07 R)
• M24: 21,518,307 km (0.062 R)
• M25: 22,078,551 km (0.088 R)
• M26: 26,836,811 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 345

Radius: 7.5

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 8.83 AU - 9.45 AU

Year: 18427 Days

Day: 15 Hours

Environment

Temp: -243 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,320,359 km

• M1: 94,097 km (0.108 R)
• M2: 359,783 km (0.104 R)
• M3: 711,039 km (0.036 R)
• M4: 1,207,255 km (0.04 R)
• M5: 1,814,622 km (0.117 R)
• M6: 6,226,413 km (0.086 R)
• M7: 6,826,001 km (0.068 R)
• M8: 8,233,119 km (0.102 R)
• M9: 8,517,056 km (0.099 R)
• M10: 15,378,063 km (0.084 R)
• M11: 16,174,671 km (0.106 R)
• M12: 27,355,018 km (0.043 R)
• M13: 37,647,651 km (0.113 R)
• M14: 40,029,997 km (0.083 R)
• M15: 40,436,604 km (0.118 R)
• M16: 43,217,927 km (0.081 R)
• M17: 47,171,500 km (0.056 R)
• M18: 48,695,005 km (0.099 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 18,620 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit