🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.46 AU - 0.6 AU

Year: 253 Days

Day: 46.9 Hours

Environment

Temp: -110 °C

Axial Tilt: 12.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.1

Radius: 13.7

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.89 AU - 1.37 AU

Year: 788 Days

Day: 11.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,008,716 km

• M1: 170,691 km (0.096 R)
• M2: 694,433 km (0.063 R)
• M3: 1,259,913 km (0.052 R)
• M4: 1,874,611 km (0.073 R)
• M5: 2,721,185 km (0.068 R)
• M6: 3,588,554 km (0.102 R)
• M7: 4,247,981 km (0.11 R)
• M8: 5,227,099 km (0.082 R)
• M9: 5,994,237 km (0.092 R)
• M10: 6,790,247 km (0.072 R)
• M11: 7,296,337 km (0.114 R)
• M12: 8,255,558 km (0.101 R)
• M13: 9,104,227 km (0.083 R)
• M14: 9,663,574 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.6

Radius: 10.4

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.44 AU - 1.92 AU

Year: 1428 Days

Day: 10.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 116.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,008,716 km

• M1: 129,552 km (0.112 R)
• M2: 514,018 km (0.059 R)
• M3: 1,088,923 km (0.089 R)
• M4: 1,732,792 km (0.095 R)
• M5: 2,201,931 km (0.096 R)
• M6: 2,552,588 km (0.106 R)
• M7: 2,900,104 km (0.043 R)
• M8: 3,338,276 km (0.079 R)
• M9: 4,696,027 km (0.095 R)
• M10: 5,101,587 km (0.091 R)
• M11: 5,509,540 km (0.076 R)
• M12: 5,873,362 km (0.056 R)
• M13: 6,276,079 km (0.086 R)
• M14: 6,745,069 km (0.047 R)
• M15: 7,415,267 km (0.115 R)
• M16: 8,349,356 km (0.104 R)
• M17: 8,715,722 km (0.052 R)
• M18: 10,321,804 km (0.102 R)
• M19: 10,678,446 km (0.102 R)
• M20: 11,485,377 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.3

Radius: 14.6

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.83 AU - 2.11 AU

Year: 1814 Days

Day: 10.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,008,716 km

• M1: 182,061 km (0.119 R)
• M2: 1,003,054 km (0.116 R)
• M3: 1,888,075 km (0.028 R)
• M4: 4,598,639 km (0.092 R)
• M5: 6,196,194 km (0.092 R)
• M6: 7,941,852 km (0.118 R)
• M7: 8,630,451 km (0.037 R)
• M8: 9,172,893 km (0.076 R)
• M9: 10,127,477 km (0.092 R)
• M10: 12,727,488 km (0.066 R)
• M11: 13,352,059 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.8

Radius: 11.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.75 AU - 2.85 AU

Year: 3074 Days

Day: 9.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,008,716 km

• M1: 139,575 km (0.098 R)
• M2: 517,609 km (0.06 R)
• M3: 898,934 km (0.119 R)
• M4: 1,548,338 km (0.112 R)
• M5: 2,180,539 km (0.077 R)
• M6: 3,011,854 km (0.109 R)
• M7: 3,417,563 km (0.05 R)
• M8: 4,674,185 km (0.064 R)
• M9: 5,195,983 km (0.102 R)
• M10: 5,599,747 km (0.066 R)
• M11: 6,413,410 km (0.112 R)
• M12: 7,089,293 km (0.07 R)
• M13: 7,650,884 km (0.103 R)
• M14: 8,445,548 km (0.025 R)
• M15: 9,149,256 km (0.055 R)
• M16: 11,286,411 km (0.086 R)
• M17: 11,750,763 km (0.074 R)
• M18: 12,227,980 km (0.064 R)
• M19: 15,367,441 km (0.117 R)
• M20: 16,202,646 km (0.059 R)
• M21: 17,906,716 km (0.091 R)
• M22: 18,422,978 km (0.102 R)
• M23: 19,666,585 km (0.071 R)
• M24: 20,526,174 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.1

Radius: 10.6

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.36 AU - 5.4 AU

Year: 6013 Days

Day: 12.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 48,008,716 km

• M1: 134,937 km (0.105 R)
• M2: 957,726 km (0.079 R)
• M3: 2,873,326 km (0.038 R)
• M4: 3,313,593 km (0.047 R)
• M5: 4,452,332 km (0.095 R)
• M6: 8,666,953 km (0.061 R)
• M7: 9,842,194 km (0.104 R)
• M8: 10,490,401 km (0.082 R)
• M9: 11,776,045 km (0.084 R)
• M10: 12,113,388 km (0.111 R)
• M11: 12,457,015 km (0.092 R)
• M12: 13,475,178 km (0.092 R)
• M13: 14,602,996 km (0.085 R)
• M14: 17,540,051 km (0.04 R)
• M15: 19,014,937 km (0.114 R)
• M16: 20,363,262 km (0.109 R)
• M17: 23,476,394 km (0.095 R)
• M18: 29,730,782 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.2

Radius: 10.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.02 AU - 6.16 AU

Year: 8670 Days

Day: 7 Hours

Environment

Temp: -228 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,008,716 km

• M1: 134,339 km (0.108 R)
• M2: 702,661 km (0.098 R)
• M3: 1,088,175 km (0.047 R)
• M4: 1,467,854 km (0.103 R)
• M5: 2,092,276 km (0.099 R)
• M6: 2,820,219 km (0.029 R)
• M7: 4,588,615 km (0.116 R)
• M8: 5,842,694 km (0.073 R)
• M9: 6,346,241 km (0.055 R)
• M10: 7,601,517 km (0.058 R)
• M11: 14,554,078 km (0.07 R)
• M12: 15,586,153 km (0.078 R)
• M13: 19,278,229 km (0.083 R)
• M14: 20,332,445 km (0.079 R)
• M15: 20,905,854 km (0.097 R)
• M16: 21,885,420 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.6

Radius: 6.8

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 5.85 AU - 9.59 AU

Year: 14071 Days

Day: 20.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 48,008,716 km

• M1: 87,814 km (0.032 R)
• M2: 307,723 km (0.106 R)
• M3: 522,097 km (0.099 R)
• M4: 888,611 km (0.105 R)
• M5: 1,136,645 km (0.043 R)
• M6: 1,902,436 km (0.103 R)
• M7: 2,228,709 km (0.093 R)
• M8: 2,693,510 km (0.1 R)
• M9: 3,339,473 km (0.069 R)
• M10: 3,559,681 km (0.042 R)
• M11: 4,307,671 km (0.082 R)
• M12: 5,451,047 km (0.11 R)
• M13: 8,101,473 km (0.105 R)
• M14: 8,500,749 km (0.025 R)
• M15: 8,866,666 km (0.119 R)
• M16: 10,592,277 km (0.115 R)
• M17: 11,286,561 km (0.045 R)
• M18: 12,297,543 km (0.068 R)
• M19: 14,433,951 km (0.118 R)
• M20: 16,522,486 km (0.097 R)
• M21: 17,309,670 km (0.052 R)
• M22: 19,662,396 km (0.04 R)
• M23: 20,060,925 km (0.112 R)
• M24: 21,288,675 km (0.098 R)
• M25: 22,652,558 km (0.113 R)
• M26: 23,002,468 km (0.112 R)
• M27: 25,647,807 km (0.115 R)
• M28: 26,605,233 km (0.041 R)
• M29: 28,388,141 km (0.116 R)
• M30: 30,038,355 km (0.092 R)
• M31: 30,354,904 km (0.027 R)
• M32: 38,757,218 km (0.098 R)
• M33: 39,006,897 km (0.094 R)
• M34: 39,383,584 km (0.071 R)
• M35: 41,303,374 km (0.084 R)
• M36: 46,867,667 km (0.088 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: 347 - 17,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit