🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.4

Radius: 13.3

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.54 AU - 0.9 AU

Year: 407 Days

Day: 5.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,881,790 km

• M1: 165,455 km (0.118 R)
• M2: 583,581 km (0.106 R)
• M3: 1,090,718 km (0.117 R)
• M4: 1,546,692 km (0.103 R)
• M5: 2,459,838 km (0.089 R)
• M6: 2,978,942 km (0.1 R)
• M7: 3,498,945 km (0.104 R)
• M8: 4,132,791 km (0.11 R)
• M9: 5,598,401 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.1

Radius: 14.2

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.84 AU - 1.86 AU

Year: 1678 Days

Day: 14.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,881,790 km

• M1: 176,525 km (0.111 R)
• M2: 730,786 km (0.058 R)
• M3: 1,283,999 km (0.045 R)
• M4: 1,948,811 km (0.086 R)
• M5: 2,427,225 km (0.044 R)
• M6: 2,886,042 km (0.051 R)
• M7: 3,967,186 km (0.096 R)
• M8: 4,459,662 km (0.12 R)
• M9: 6,168,369 km (0.066 R)
• M10: 6,877,164 km (0.066 R)
• M11: 8,254,661 km (0.086 R)
• M12: 9,009,083 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.1

Radius: 12.3

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.26 AU - 3.32 AU

Year: 3979 Days

Day: 14.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,881,790 km

• M1: 153,039 km (0.055 R)
• M2: 629,807 km (0.117 R)
• M3: 1,016,667 km (0.115 R)
• M4: 1,925,325 km (0.071 R)
• M5: 3,484,882 km (0.103 R)
• M6: 4,334,299 km (0.076 R)
• M7: 4,894,394 km (0.059 R)
• M8: 5,691,900 km (0.084 R)
• M9: 6,313,180 km (0.078 R)
• M10: 10,665,131 km (0.1 R)
• M11: 11,611,039 km (0.087 R)
• M12: 12,366,658 km (0.04 R)
• M13: 12,819,042 km (0.068 R)
• M14: 13,800,553 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.8

Radius: 10.4

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.28 AU - 5.02 AU

Year: 5638 Days

Day: 9.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,881,790 km

• M1: 142,866 km (0.117 R)
• M2: 469,737 km (0.12 R)
• M3: 794,215 km (0.105 R)
• M4: 1,230,891 km (0.06 R)
• M5: 2,358,261 km (0.028 R)
• M6: 3,631,638 km (0.107 R)
• M7: 4,071,605 km (0.073 R)
• M8: 5,555,167 km (0.07 R)
• M9: 6,140,993 km (0.111 R)
• M10: 7,568,455 km (0.11 R)
• M11: 8,253,614 km (0.073 R)
• M12: 9,054,561 km (0.062 R)
• M13: 9,396,841 km (0.101 R)
• M14: 10,810,989 km (0.034 R)
• M15: 13,263,796 km (0.036 R)
• M16: 16,010,862 km (0.063 R)
• M17: 17,139,428 km (0.039 R)
• M18: 19,935,412 km (0.068 R)
• M19: 23,163,286 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.7

Radius: 11.7

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.37 AU - 4.83 AU

Year: 6579 Days

Day: 6.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,881,790 km

• M1: 146,157 km (0.107 R)
• M2: 580,141 km (0.072 R)
• M3: 1,147,565 km (0.105 R)
• M4: 1,650,663 km (0.097 R)
• M5: 2,243,669 km (0.106 R)
• M6: 2,991,658 km (0.085 R)
• M7: 5,176,236 km (0.108 R)
• M8: 6,143,237 km (0.078 R)
• M9: 8,365,214 km (0.102 R)
• M10: 9,248,888 km (0.111 R)
• M11: 12,231,272 km (0.092 R)
• M12: 20,763,736 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 159.9

Radius: 5.2

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.45 AU - 8.83 AU

Year: 12723 Days

Day: 19 Hours

Environment

Temp: -228 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,881,790 km

• M1: 72,854 km (0.069 R)
• M2: 298,149 km (0.086 R)
• M3: 530,923 km (0.05 R)
• M4: 1,241,064 km (0.098 R)
• M5: 1,436,140 km (0.112 R)
• M6: 3,771,512 km (0.078 R)
• M7: 5,602,291 km (0.082 R)
• M8: 8,428,194 km (0.089 R)
• M9: 9,563,343 km (0.026 R)
• M10: 13,028,479 km (0.041 R)
• M11: 17,641,329 km (0.086 R)
• M12: 19,699,048 km (0.086 R)
• M13: 19,913,272 km (0.08 R)
• M14: 27,439,541 km (0.1 R)
• M15: 27,617,413 km (0.079 R)
• M16: 30,665,918 km (0.049 R)
• M17: 33,727,289 km (0.075 R)
• M18: 34,033,815 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501

Radius: 4.3

Gravity: 27.1 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 8.24 AU - 11.44 AU

Year: 20584 Days

Day: 19.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 69,881,790 km

• M1: 53,556 km (0.081 R)
• M2: 193,131 km (0.081 R)
• M3: 427,700 km (0.069 R)
• M4: 776,862 km (0.107 R)
• M5: 1,030,879 km (0.079 R)
• M6: 1,521,560 km (0.108 R)
• M7: 1,704,219 km (0.057 R)
• M8: 2,363,198 km (0.071 R)
• M9: 2,725,972 km (0.047 R)
• M10: 3,021,727 km (0.095 R)
• M11: 3,561,925 km (0.103 R)
• M12: 5,226,950 km (0.101 R)
• M13: 5,489,943 km (0.091 R)
• M14: 5,683,074 km (0.077 R)
• M15: 7,396,268 km (0.075 R)
• M16: 10,390,619 km (0.102 R)
• M17: 11,357,171 km (0.098 R)
• M18: 12,849,560 km (0.098 R)
• M19: 16,138,169 km (0.086 R)
• M20: 19,856,275 km (0.026 R)
• M21: 20,588,557 km (0.064 R)
• M22: 21,149,399 km (0.12 R)
• M23: 22,793,779 km (0.06 R)
• M24: 23,596,371 km (0.071 R)
• M25: 25,151,591 km (0.106 R)
• M26: 27,441,785 km (0.076 R)
• M27: 27,779,876 km (0.057 R)
• M28: 32,181,494 km (0.075 R)
• M29: 35,007,099 km (0.061 R)
• M30: 37,300,733 km (0.094 R)
• M31: 41,146,146 km (0.049 R)
• M32: 46,035,603 km (0.068 R)
• M33: 46,993,628 km (0.1 R)
• M34: 47,964,668 km (0.066 R)
• M35: 65,775,341 km (0.115 R)
• M36: 66,989,926 km (0.078 R)
• M37: 68,219,322 km (0.035 R)
• M38: 68,839,555 km (0.094 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 18,769 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit