🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.3

Radius: 9.1

Gravity: 8.18 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.65 AU - 0.73 AU

Year: 389 Days

Day: 7.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,041,290 km

• M1: 113,246 km (0.092 R)
• M2: 426,653 km (0.104 R)
• M3: 748,438 km (0.086 R)
• M4: 1,035,666 km (0.118 R)
• M5: 1,487,302 km (0.116 R)
• M6: 2,395,361 km (0.101 R)
• M7: 3,374,180 km (0.109 R)
• M8: 3,896,576 km (0.116 R)
• M9: 4,599,237 km (0.088 R)
• M10: 5,011,229 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709

Radius: 14.7

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.65 AU - 0.85 AU

Year: 441 Days

Day: 5 Hours

Environment

Temp: -152 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,041,290 km

• M1: 182,809 km (0.047 R)
• M2: 645,814 km (0.107 R)
• M3: 1,190,949 km (0.094 R)
• M4: 1,861,297 km (0.069 R)
• M5: 2,549,896 km (0.071 R)
• M6: 3,416,666 km (0.064 R)
• M7: 3,887,450 km (0.086 R)
• M8: 4,373,494 km (0.104 R)
• M9: 4,976,972 km (0.073 R)
• M10: 5,652,556 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.5

Radius: 11.5

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.41 AU - 1.93 AU

Year: 1464 Days

Day: 7.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 15,041,290 km

• M1: 143,016 km (0.109 R)
• M2: 553,063 km (0.101 R)
• M3: 975,079 km (0.059 R)
• M4: 1,457,233 km (0.071 R)
• M5: 2,130,423 km (0.093 R)
• M6: 3,298,932 km (0.113 R)
• M7: 3,850,948 km (0.096 R)
• M8: 4,955,130 km (0.08 R)
• M9: 6,452,306 km (0.089 R)
• M10: 7,186,383 km (0.102 R)
• M11: 8,060,184 km (0.038 R)
• M12: 8,701,061 km (0.104 R)
• M13: 9,095,401 km (0.103 R)
• M14: 9,790,283 km (0.058 R)
• M15: 10,520,171 km (0.102 R)
• M16: 11,321,716 km (0.073 R)
• M17: 13,283,543 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.6

Radius: 12.2

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.6 AU - 2.02 AU

Year: 1652 Days

Day: 13.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,041,290 km

• M1: 152,590 km (0.091 R)
• M2: 562,189 km (0.095 R)
• M3: 1,055,712 km (0.101 R)
• M4: 1,591,273 km (0.095 R)
• M5: 3,183,443 km (0.06 R)
• M6: 3,772,709 km (0.116 R)
• M7: 5,261,656 km (0.026 R)
• M8: 8,726,343 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836

Radius: 10.8

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.19 AU - 3.05 AU

Year: 2876 Days

Day: 11.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 15,041,290 km

• M1: 135,087 km (0.037 R)
• M2: 664,215 km (0.083 R)
• M3: 1,178,083 km (0.102 R)
• M4: 1,586,336 km (0.038 R)
• M5: 2,011,343 km (0.064 R)
• M6: 2,423,037 km (0.028 R)
• M7: 2,857,918 km (0.072 R)
• M8: 4,485,543 km (0.095 R)
• M9: 6,570,937 km (0.076 R)
• M10: 7,391,032 km (0.091 R)
• M11: 9,161,074 km (0.03 R)
• M12: 11,579,025 km (0.097 R)
• M13: 12,501,744 km (0.071 R)
• M14: 15,150,674 km (0.116 R)
• M15: 18,269,191 km (0.04 R)
• M16: 18,738,629 km (0.102 R)
• M17: 19,518,782 km (0.111 R)
• M18: 20,761,043 km (0.118 R)
• M19: 21,989,241 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.7

Radius: 13.1

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.21 AU - 3.29 AU

Year: 3974 Days

Day: 12.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 15,041,290 km

• M1: 162,912 km (0.116 R)
• M2: 622,776 km (0.068 R)
• M3: 1,050,775 km (0.113 R)
• M4: 1,469,649 km (0.105 R)
• M5: 3,254,053 km (0.115 R)
• M6: 4,794,911 km (0.045 R)
• M7: 5,260,310 km (0.065 R)
• M8: 6,558,071 km (0.088 R)
• M9: 8,720,060 km (0.025 R)
• M10: 12,726,440 km (0.056 R)
• M11: 13,319,895 km (0.107 R)
• M12: 13,983,661 km (0.11 R)
• M13: 15,321,964 km (0.088 R)
• M14: 18,501,816 km (0.12 R)
• M15: 19,071,634 km (0.115 R)
• M16: 20,513,758 km (0.079 R)
• M17: 23,910,826 km (0.082 R)
• M18: 24,360,368 km (0.091 R)
• M19: 25,508,831 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.7

Radius: 11.5

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.22 AU - 5.34 AU

Year: 7088 Days

Day: 8.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,041,290 km

• M1: 143,464 km (0.041 R)
• M2: 1,148,612 km (0.107 R)
• M3: 2,069,986 km (0.101 R)
• M4: 5,803,949 km (0.113 R)
• M5: 7,190,122 km (0.119 R)
• M6: 7,812,300 km (0.073 R)
• M7: 9,413,296 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 404.6

Radius: 7.5

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.41 AU - 5.91 AU

Year: 9133 Days

Day: 24.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 15,041,290 km

• M1: 93,349 km (0.082 R)
• M2: 552,764 km (0.094 R)
• M3: 878,588 km (0.093 R)
• M4: 1,251,237 km (0.094 R)
• M5: 1,500,317 km (0.114 R)
• M6: 1,990,699 km (0.072 R)
• M7: 3,033,396 km (0.085 R)
• M8: 3,697,611 km (0.092 R)
• M9: 4,956,925 km (0.029 R)
• M10: 5,843,742 km (0.101 R)
• M11: 6,206,516 km (0.08 R)
• M12: 6,514,389 km (0.116 R)
• M13: 7,968,181 km (0.096 R)
• M14: 8,209,632 km (0.033 R)
• M15: 8,456,020 km (0.089 R)
• M16: 8,963,605 km (0.081 R)
• M17: 10,039,513 km (0.107 R)
• M18: 11,967,680 km (0.12 R)
• M19: 13,102,081 km (0.115 R)
• M20: 15,027,106 km (0.117 R)
• M21: 17,672,146 km (0.093 R)
• M22: 19,211,957 km (0.058 R)
• M23: 19,720,141 km (0.113 R)
• M24: 20,687,740 km (0.116 R)
• M25: 22,000,312 km (0.053 R)
• M26: 22,959,533 km (0.032 R)
• M27: 33,400,567 km (0.096 R)
• M28: 34,029,776 km (0.077 R)
• M29: 37,070,352 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 13.3

Radius: 5.2

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.23 AU - 7.81 AU

Year: 12615 Days

Day: 23.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,041,290 km

• M1: 64,776 km (0.096 R)
• M2: 249,230 km (0.077 R)
• M3: 2,269,250 km (0.116 R)
• M4: 2,556,478 km (0.11 R)
• M5: 3,397,667 km (0.071 R)
• M6: 3,616,828 km (0.101 R)
• M7: 7,171,872 km (0.077 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 15,621 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit