🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.5

Radius: 10.6

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.6 AU - 0.72 AU

Year: 377 Days

Day: 12.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,121,005 km

• M1: 131,796 km (0.076 R)
• M2: 562,937 km (0.106 R)
• M3: 920,326 km (0.096 R)
• M4: 1,410,259 km (0.066 R)
• M5: 1,844,691 km (0.061 R)
• M6: 2,211,206 km (0.1 R)
• M7: 2,703,982 km (0.089 R)
• M8: 3,291,452 km (0.103 R)
• M9: 4,523,092 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.6

Radius: 14.6

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.95 AU - 1.27 AU

Year: 822 Days

Day: 7.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,121,005 km

• M1: 181,612 km (0.1 R)
• M2: 716,873 km (0.083 R)
• M3: 1,443,470 km (0.098 R)
• M4: 2,171,263 km (0.115 R)
• M5: 2,726,122 km (0.09 R)
• M6: 3,222,637 km (0.057 R)
• M7: 4,082,526 km (0.028 R)
• M8: 4,591,308 km (0.075 R)
• M9: 5,516,421 km (0.087 R)
• M10: 7,242,631 km (0.072 R)
• M11: 7,760,090 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.5

Radius: 13.3

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.13 AU - 1.23 AU

Year: 901 Days

Day: 12.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,121,005 km

• M1: 165,605 km (0.103 R)
• M2: 622,926 km (0.084 R)
• M3: 1,104,780 km (0.068 R)
• M4: 1,529,189 km (0.079 R)
• M5: 2,073,875 km (0.091 R)
• M6: 2,578,020 km (0.074 R)
• M7: 3,453,616 km (0.069 R)
• M8: 3,902,560 km (0.101 R)
• M9: 4,562,286 km (0.116 R)
• M10: 5,327,479 km (0.032 R)
• M11: 5,758,471 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.8

Radius: 10.6

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.14 AU - 1.42 AU

Year: 1018 Days

Day: 7.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,121,005 km

• M1: 132,095 km (0.103 R)
• M2: 553,961 km (0.077 R)
• M3: 1,603,240 km (0.073 R)
• M4: 2,005,359 km (0.052 R)
• M5: 2,827,849 km (0.083 R)
• M6: 3,371,786 km (0.115 R)
• M7: 4,195,023 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 21.7

Radius: 3.8

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.72 AU - 6.38 AU

Year: 9191 Days

Day: 18.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,121,005 km

• M1: 47,273 km (0.079 R)
• M2: 166,802 km (0.116 R)
• M3: 1,223,411 km (0.11 R)
• M4: 1,484,011 km (0.108 R)
• M5: 2,056,522 km (0.092 R)
• M6: 3,935,471 km (0.057 R)
• M7: 4,099,730 km (0.055 R)
• M8: 7,529,410 km (0.098 R)
• M9: 9,009,981 km (0.112 R)
• M10: 10,291,735 km (0.112 R)
• M11: 12,260,144 km (0.075 R)
• M12: 13,373,451 km (0.119 R)

Asteroid Belt

Center: 6.65 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.1

Radius: 6.2

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 6.67 AU - 8.84 AU

Year: 15166 Days

Day: 24 Hours

Environment

Temp: -241 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,121,005 km

• M1: 77,940 km (0.089 R)
• M2: 287,527 km (0.113 R)
• M3: 1,109,567 km (0.061 R)
• M4: 1,548,787 km (0.067 R)
• M5: 1,960,480 km (0.09 R)
• M6: 3,920,661 km (0.03 R)
• M7: 5,015,568 km (0.073 R)
• M8: 7,380,411 km (0.069 R)
• M9: 9,900,387 km (0.091 R)
• M10: 12,623,368 km (0.09 R)
• M11: 13,539,804 km (0.074 R)
• M12: 13,986,055 km (0.051 R)
• M13: 14,384,434 km (0.116 R)
• M14: 16,178,411 km (0.089 R)
• M15: 18,726,661 km (0.119 R)
• M16: 19,002,221 km (0.095 R)
• M17: 22,061,796 km (0.084 R)
• M18: 23,868,939 km (0.097 R)
• M19: 25,350,406 km (0.107 R)
• M20: 26,630,964 km (0.118 R)
• M21: 28,951,676 km (0.1 R)
• M22: 29,227,834 km (0.05 R)
• M23: 33,079,829 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.3

Radius: 7.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 7.48 AU - 10.66 AU

Year: 19201 Days

Day: 24.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,121,005 km

• M1: 98,435 km (0.12 R)
• M2: 356,193 km (0.111 R)
• M3: 669,750 km (0.103 R)
• M4: 1,087,876 km (0.102 R)
• M5: 1,782,758 km (0.099 R)
• M6: 2,034,980 km (0.116 R)
• M7: 5,578,953 km (0.094 R)
• M8: 6,058,564 km (0.089 R)
• M9: 6,634,965 km (0.074 R)
• M10: 7,210,318 km (0.03 R)
• M11: 8,752,074 km (0.111 R)
• M12: 11,283,270 km (0.099 R)
• M13: 12,851,504 km (0.1 R)
• M14: 13,405,166 km (0.112 R)
• M15: 16,543,580 km (0.117 R)
• M16: 18,841,403 km (0.091 R)
• M17: 19,267,907 km (0.106 R)
• M18: 29,305,026 km (0.074 R)
• M19: 29,686,052 km (0.112 R)
• M20: 32,142,299 km (0.042 R)
• M21: 33,368,104 km (0.091 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: 215 - 16,632 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit