🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217

Radius: 10.7

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.66 AU - 0.7 AU

Year: 387 Days

Day: 12.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,563,947 km

• M1: 133,142 km (0.082 R)
• M2: 509,830 km (0.045 R)
• M3: 911,949 km (0.036 R)
• M4: 1,501,514 km (0.12 R)
• M5: 1,904,082 km (0.101 R)
• M6: 2,458,641 km (0.118 R)
• M7: 3,578,979 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.4

Radius: 8.7

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.58 AU - 0.86 AU

Year: 422 Days

Day: 8 Hours

Environment

Temp: -161 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,563,947 km

• M1: 108,309 km (0.094 R)
• M2: 407,505 km (0.078 R)
• M3: 780,751 km (0.096 R)
• M4: 1,225,356 km (0.11 R)
• M5: 1,675,646 km (0.094 R)
• M6: 2,161,091 km (0.068 R)
• M7: 3,007,516 km (0.113 R)
• M8: 3,703,744 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.5

Radius: 13.9

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.95 AU - 1.03 AU

Year: 680 Days

Day: 12.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,563,947 km

• M1: 172,935 km (0.078 R)
• M2: 769,531 km (0.086 R)
• M3: 1,220,270 km (0.081 R)
• M4: 2,120,251 km (0.077 R)
• M5: 3,132,131 km (0.06 R)
• M6: 3,895,379 km (0.034 R)
• M7: 4,657,281 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.3

Radius: 13.7

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.78 AU - 2.86 AU

Year: 2439 Days

Day: 10.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,563,947 km

• M1: 172,038 km (0.113 R)
• M2: 674,537 km (0.102 R)
• M3: 1,357,002 km (0.089 R)
• M4: 1,916,199 km (0.049 R)
• M5: 2,887,688 km (0.116 R)
• M6: 3,359,669 km (0.082 R)
• M7: 5,648,068 km (0.118 R)
• M8: 8,638,978 km (0.112 R)
• M9: 9,801,204 km (0.09 R)
• M10: 11,795,792 km (0.101 R)
• M11: 13,610,863 km (0.112 R)
• M12: 15,229,362 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 540.1

Radius: 6.4

Gravity: 13.19 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.48 AU - 9.14 AU

Year: 15066 Days

Day: 24.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,563,947 km

• M1: 80,334 km (0.081 R)
• M2: 385,813 km (0.105 R)
• M3: 641,176 km (0.056 R)
• M4: 1,827,787 km (0.088 R)
• M5: 2,111,574 km (0.072 R)
• M6: 2,343,600 km (0.075 R)
• M7: 3,715,862 km (0.084 R)
• M8: 5,340,195 km (0.103 R)
• M9: 6,750,754 km (0.119 R)
• M10: 9,079,095 km (0.077 R)
• M11: 9,907,717 km (0.119 R)
• M12: 13,597,698 km (0.027 R)
• M13: 16,485,685 km (0.05 R)
• M14: 17,715,529 km (0.109 R)
• M15: 20,443,447 km (0.065 R)
• M16: 21,501,104 km (0.096 R)
• M17: 24,303,969 km (0.072 R)
• M18: 25,289,969 km (0.061 R)
• M19: 35,895,859 km (0.046 R)
• M20: 36,148,979 km (0.089 R)
• M21: 39,012,432 km (0.096 R)
• M22: 42,304,782 km (0.062 R)
• M23: 43,873,764 km (0.069 R)
• M24: 47,583,193 km (0.081 R)
• M25: 57,500,485 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 652.4

Radius: 5.9

Gravity: 18.74 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 8.2 AU - 9.08 AU

Year: 17530 Days

Day: 20.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,563,947 km

• M1: 74,201 km (0.111 R)
• M2: 479,461 km (0.076 R)
• M3: 672,143 km (0.116 R)
• M4: 950,994 km (0.115 R)
• M5: 1,249,591 km (0.056 R)
• M6: 2,602,405 km (0.092 R)
• M7: 2,885,893 km (0.055 R)
• M8: 3,599,175 km (0.038 R)
• M9: 6,068,288 km (0.057 R)
• M10: 6,525,010 km (0.095 R)
• M11: 7,138,960 km (0.098 R)
• M12: 7,413,622 km (0.107 R)
• M13: 8,330,208 km (0.106 R)
• M14: 8,841,833 km (0.031 R)
• M15: 9,052,317 km (0.096 R)
• M16: 10,385,982 km (0.071 R)
• M17: 11,530,705 km (0.116 R)
• M18: 16,955,722 km (0.051 R)
• M19: 21,043,932 km (0.109 R)
• M20: 22,280,957 km (0.109 R)
• M21: 24,794,650 km (0.1 R)
• M22: 26,390,261 km (0.113 R)
• M23: 27,715,100 km (0.11 R)
• M24: 29,666,903 km (0.08 R)
• M25: 32,575,684 km (0.114 R)
• M26: 35,009,193 km (0.042 R)
• M27: 40,523,221 km (0.069 R)
• M28: 42,135,138 km (0.099 R)
• M29: 43,941,831 km (0.117 R)
• M30: 46,747,839 km (0.076 R)
• M31: 47,709,005 km (0.092 R)
• M32: 49,340,220 km (0.073 R)
• M33: 51,177,132 km (0.05 R)
• M34: 58,610,202 km (0.089 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: 545 - 12,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit