🌌 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: 223.2

Radius: 12.6

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.57 AU - 0.91 AU

Year: 447 Days

Day: 8.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,987,331 km

• M1: 156,779 km (0.102 R)
• M2: 765,941 km (0.058 R)
• M3: 1,333,216 km (0.116 R)
• M4: 1,983,069 km (0.11 R)
• M5: 2,494,096 km (0.109 R)
• M6: 2,986,422 km (0.091 R)
• M7: 3,468,875 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.4

Radius: 10.9

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.95 AU - 1.07 AU

Year: 713 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,987,331 km

• M1: 135,536 km (0.105 R)
• M2: 573,109 km (0.109 R)
• M3: 1,019,809 km (0.074 R)
• M4: 1,379,592 km (0.063 R)
• M5: 1,848,880 km (0.104 R)
• M6: 2,386,086 km (0.114 R)
• M7: 3,216,354 km (0.11 R)
• M8: 3,686,092 km (0.057 R)
• M9: 5,182,968 km (0.116 R)
• M10: 5,525,547 km (0.113 R)
• M11: 6,023,558 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.1

Radius: 13.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.25 AU - 1.89 AU

Year: 1383 Days

Day: 12 Hours

Environment

Temp: -196 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,987,331 km

• M1: 171,589 km (0.085 R)
• M2: 692,489 km (0.09 R)
• M3: 1,128,267 km (0.09 R)
• M4: 1,612,515 km (0.11 R)
• M5: 2,104,543 km (0.056 R)
• M6: 2,906,387 km (0.098 R)
• M7: 4,174,229 km (0.097 R)
• M8: 4,612,252 km (0.105 R)
• M9: 5,522,705 km (0.082 R)
• M10: 7,239,041 km (0.113 R)
• M11: 8,548,621 km (0.086 R)
• M12: 8,981,707 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.7

Radius: 12.8

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.87 AU - 1.95 AU

Year: 1855 Days

Day: 13.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,987,331 km

• M1: 159,322 km (0.107 R)
• M2: 583,581 km (0.096 R)
• M3: 993,928 km (0.068 R)
• M4: 1,794,277 km (0.059 R)
• M5: 3,138,414 km (0.115 R)
• M6: 3,721,995 km (0.1 R)
• M7: 4,139,523 km (0.112 R)
• M8: 4,606,268 km (0.104 R)
• M9: 5,127,617 km (0.117 R)
• M10: 6,837,670 km (0.062 R)
• M11: 7,771,759 km (0.07 R)
• M12: 8,650,347 km (0.093 R)
• M13: 9,712,941 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.4

Radius: 11.1

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.14 AU - 2.94 AU

Year: 2846 Days

Day: 8 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,987,331 km

• M1: 138,378 km (0.08 R)
• M2: 530,324 km (0.04 R)
• M3: 1,002,455 km (0.092 R)
• M4: 2,133,864 km (0.101 R)
• M5: 2,518,181 km (0.104 R)
• M6: 3,763,434 km (0.12 R)
• M7: 7,074,184 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.2

Radius: 12.5

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.66 AU - 3.52 AU

Year: 3818 Days

Day: 13.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,987,331 km

• M1: 155,432 km (0.09 R)
• M2: 663,616 km (0.055 R)
• M3: 1,090,568 km (0.109 R)
• M4: 1,549,684 km (0.044 R)
• M5: 2,675,857 km (0.044 R)
• M6: 3,358,323 km (0.105 R)
• M7: 3,772,260 km (0.087 R)
• M8: 4,400,272 km (0.059 R)
• M9: 4,800,147 km (0.102 R)
• M10: 6,741,927 km (0.049 R)
• M11: 8,571,509 km (0.044 R)
• M12: 9,816,911 km (0.116 R)
• M13: 16,522,786 km (0.069 R)
• M14: 18,204,714 km (0.114 R)
• M15: 18,871,622 km (0.075 R)
• M16: 20,061,972 km (0.039 R)
• M17: 21,235,268 km (0.098 R)
• M18: 21,703,659 km (0.074 R)
• M19: 23,362,251 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.4

Radius: 14.4

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.45 AU - 3.91 AU

Year: 4962 Days

Day: 5.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 92.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,987,331 km

• M1: 179,069 km (0.119 R)
• M2: 627,114 km (0.059 R)
• M3: 1,144,424 km (0.104 R)
• M4: 1,659,639 km (0.115 R)
• M5: 3,490,118 km (0.069 R)
• M6: 4,735,521 km (0.108 R)
• M7: 5,400,633 km (0.092 R)
• M8: 7,062,515 km (0.088 R)
• M9: 10,405,729 km (0.058 R)
• M10: 11,858,922 km (0.119 R)
• M11: 12,871,700 km (0.078 R)
• M12: 14,497,829 km (0.115 R)
• M13: 15,263,022 km (0.097 R)
• M14: 16,308,113 km (0.095 R)
• M15: 16,874,191 km (0.114 R)
• M16: 18,374,957 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15

Radius: 7.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.87 AU - 8.23 AU

Year: 13158 Days

Day: 18.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,987,331 km

• M1: 89,908 km (0.071 R)
• M2: 1,719,328 km (0.078 R)
• M3: 2,991,957 km (0.101 R)
• M4: 4,111,697 km (0.105 R)
• M5: 4,465,945 km (0.108 R)
• M6: 9,750,490 km (0.064 R)
• M7: 10,524,958 km (0.105 R)
• M8: 13,688,804 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 871.4

Radius: 5.2

Gravity: 32.23 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.55 AU - 10.63 AU

Year: 17697 Days

Day: 22.4 Hours

Environment

Temp: -242 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 75,987,331 km

• M1: 64,776 km (0.059 R)
• M2: 239,357 km (0.086 R)
• M3: 411,993 km (0.09 R)
• M4: 690,394 km (0.118 R)
• M5: 1,353,412 km (0.078 R)
• M6: 2,155,855 km (0.083 R)
• M7: 2,575,926 km (0.097 R)
• M8: 3,075,134 km (0.059 R)
• M9: 5,033,819 km (0.06 R)
• M10: 5,374,304 km (0.096 R)
• M11: 5,649,564 km (0.034 R)
• M12: 5,892,959 km (0.073 R)
• M13: 7,310,998 km (0.117 R)
• M14: 7,847,007 km (0.12 R)
• M15: 9,498,118 km (0.11 R)
• M16: 10,678,595 km (0.091 R)
• M17: 12,019,740 km (0.103 R)
• M18: 13,326,627 km (0.114 R)
• M19: 13,977,527 km (0.097 R)
• M20: 15,578,374 km (0.113 R)
• M21: 16,960,808 km (0.119 R)
• M22: 17,128,657 km (0.115 R)
• M23: 17,811,272 km (0.118 R)
• M24: 19,596,423 km (0.113 R)
• M25: 21,793,119 km (0.059 R)
• M26: 23,518,431 km (0.061 R)
• M27: 24,574,741 km (0.086 R)
• M28: 25,883,573 km (0.108 R)
• M29: 27,468,563 km (0.095 R)
• M30: 29,965,501 km (0.059 R)
• M31: 45,548,213 km (0.048 R)
• M32: 47,518,268 km (0.077 R)
• M33: 60,936,748 km (0.106 R)
• M34: 75,759,802 km (0.112 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 495 - 11,716 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit