🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.7

Radius: 10.2

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.44 AU - 0.66 AU

Year: 272 Days

Day: 6.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,760,837 km

• M1: 126,859 km (0.111 R)
• M2: 511,326 km (0.084 R)
• M3: 935,286 km (0.056 R)
• M4: 1,254,079 km (0.118 R)
• M5: 1,598,902 km (0.071 R)
• M6: 2,057,420 km (0.052 R)
• M7: 2,593,877 km (0.057 R)
• M8: 3,029,955 km (0.097 R)
• M9: 3,442,247 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 12.2

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.59 AU - 0.85 AU

Year: 407 Days

Day: 10.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 89,760,837 km

• M1: 151,692 km (0.045 R)
• M2: 752,178 km (0.071 R)
• M3: 1,473,090 km (0.065 R)
• M4: 2,602,255 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.5

Radius: 12.9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.73 AU - 1.17 AU

Year: 617 Days

Day: 9.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,760,837 km

• M1: 160,369 km (0.079 R)
• M2: 573,109 km (0.096 R)
• M3: 1,178,831 km (0.057 R)
• M4: 1,592,918 km (0.107 R)
• M5: 2,518,031 km (0.099 R)
• M6: 2,932,118 km (0.047 R)
• M7: 3,449,876 km (0.09 R)
• M8: 4,080,581 km (0.072 R)
• M9: 4,642,321 km (0.108 R)
• M10: 5,349,620 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.1

Radius: 15

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1 AU - 1.1 AU

Year: 717 Days

Day: 10 Hours

Environment

Temp: -176 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,760,837 km

• M1: 186,549 km (0.089 R)
• M2: 687,552 km (0.07 R)
• M3: 1,267,692 km (0.06 R)
• M4: 1,834,369 km (0.072 R)
• M5: 3,471,867 km (0.075 R)
• M6: 4,608,512 km (0.102 R)
• M7: 5,282,002 km (0.074 R)
• M8: 6,200,682 km (0.089 R)
• M9: 7,658,364 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.9

Radius: 12.6

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.03 AU - 2.21 AU

Year: 2058 Days

Day: 9.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,760,837 km

• M1: 214,374 km (0.104 R)
• M2: 613,351 km (0.092 R)
• M3: 1,020,856 km (0.099 R)
• M4: 1,418,038 km (0.1 R)
• M5: 1,942,080 km (0.109 R)
• M6: 2,543,164 km (0.104 R)
• M7: 2,944,684 km (0.093 R)
• M8: 3,530,659 km (0.09 R)
• M9: 4,229,581 km (0.088 R)
• M10: 5,225,902 km (0.091 R)
• M11: 5,635,053 km (0.08 R)
• M12: 7,096,025 km (0.106 R)
• M13: 9,566,036 km (0.111 R)
• M14: 10,515,085 km (0.073 R)
• M15: 12,676,774 km (0.105 R)
• M16: 13,299,999 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.4

Radius: 13.8

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.22 AU - 3.48 AU

Year: 3208 Days

Day: 13.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,760,837 km

• M1: 171,589 km (0.103 R)
• M2: 1,038,808 km (0.092 R)
• M3: 1,685,669 km (0.109 R)
• M4: 2,287,501 km (0.054 R)
• M5: 2,841,612 km (0.077 R)
• M6: 5,129,412 km (0.115 R)
• M7: 9,359,740 km (0.08 R)
• M8: 10,612,623 km (0.099 R)
• M9: 11,595,481 km (0.102 R)
• M10: 13,326,029 km (0.075 R)
• M11: 13,953,592 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.3

Radius: 8.4

Gravity: 11.3 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.95 AU - 4.23 AU

Year: 4536 Days

Day: 13.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 89,760,837 km

• M1: 104,569 km (0.082 R)
• M2: 562,338 km (0.076 R)
• M3: 1,209,648 km (0.077 R)
• M4: 1,932,505 km (0.108 R)
• M5: 2,255,337 km (0.113 R)
• M6: 2,648,481 km (0.086 R)
• M7: 3,086,802 km (0.047 R)
• M8: 3,488,473 km (0.078 R)
• M9: 6,903,643 km (0.117 R)
• M10: 7,207,925 km (0.093 R)
• M11: 9,025,688 km (0.09 R)
• M12: 10,855,869 km (0.111 R)
• M13: 11,268,160 km (0.117 R)
• M14: 14,289,140 km (0.104 R)
• M15: 18,000,962 km (0.045 R)
• M16: 21,872,405 km (0.11 R)
• M17: 28,451,421 km (0.059 R)
• M18: 28,972,620 km (0.089 R)
• M19: 29,411,839 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 320.1

Radius: 4.3

Gravity: 17.31 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.22 AU - 10.5 AU

Year: 17587 Days

Day: 18.1 Hours

Environment

Temp: -244 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,760,837 km

• M1: 53,706 km (0.116 R)
• M2: 218,562 km (0.06 R)
• M3: 1,016,069 km (0.115 R)
• M4: 2,070,734 km (0.104 R)
• M5: 3,784,976 km (0.094 R)
• M6: 4,268,626 km (0.063 R)
• M7: 7,320,123 km (0.107 R)
• M8: 8,390,645 km (0.084 R)
• M9: 12,281,985 km (0.088 R)
• M10: 16,409,989 km (0.114 R)
• M11: 19,349,288 km (0.098 R)
• M12: 23,539,524 km (0.059 R)
• M13: 27,981,833 km (0.071 R)
• M14: 41,257,148 km (0.07 R)
• M15: 42,625,819 km (0.111 R)
• M16: 48,253,691 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760

Radius: 3.8

Gravity: 52.63 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 8.34 AU - 13.66 AU

Year: 24329 Days

Day: 19.8 Hours

Environment

Temp: -245 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 89,760,837 km

• M1: 49,068 km (0.074 R)
• M2: 652,995 km (0.085 R)
• M3: 1,679,236 km (0.113 R)
• M4: 2,694,108 km (0.114 R)
• M5: 2,905,041 km (0.115 R)
• M6: 3,420,107 km (0.109 R)
• M7: 3,763,284 km (0.084 R)
• M8: 4,129,200 km (0.076 R)
• M9: 4,518,155 km (0.105 R)
• M10: 5,576,261 km (0.066 R)
• M11: 6,885,691 km (0.042 R)
• M12: 7,741,690 km (0.06 R)
• M13: 9,541,053 km (0.098 R)
• M14: 9,968,903 km (0.107 R)
• M15: 14,892,019 km (0.06 R)
• M16: 15,218,891 km (0.102 R)
• M17: 15,718,099 km (0.069 R)
• M18: 16,661,612 km (0.075 R)
• M19: 17,102,627 km (0.114 R)
• M20: 23,565,105 km (0.051 R)
• M21: 28,631,088 km (0.09 R)
• M22: 28,756,750 km (0.084 R)
• M23: 30,294,466 km (0.115 R)
• M24: 30,425,065 km (0.077 R)
• M25: 33,393,386 km (0.061 R)
• M26: 34,235,174 km (0.084 R)
• M27: 34,804,094 km (0.112 R)
• M28: 35,091,023 km (0.12 R)
• M29: 41,969,383 km (0.082 R)
• M30: 42,294,310 km (0.098 R)
• M31: 46,847,321 km (0.11 R)
• M32: 47,724,713 km (0.041 R)
• M33: 48,078,811 km (0.081 R)
• M34: 50,422,860 km (0.091 R)
• M35: 51,902,532 km (0.034 R)
• M36: 56,515,084 km (0.094 R)
• M37: 65,885,445 km (0.105 R)
• M38: 70,591,794 km (0.097 R)
• M39: 74,087,298 km (0.085 R)
• M40: 80,917,638 km (0.141 R)
• M41: 81,421,035 km (0.119 R)
• M42: 83,968,986 km (0.059 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 13,438 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit