🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.9

Radius: 11.2

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.68 AU - 0.9 AU

Year: 476 Days

Day: 7.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,535,225 km

• M1: 139,874 km (0.109 R)
• M2: 498,460 km (0.086 R)
• M3: 1,075,609 km (0.087 R)
• M4: 1,796,970 km (0.091 R)
• M5: 2,293,934 km (0.06 R)
• M6: 3,370,889 km (0.067 R)
• M7: 4,077,739 km (0.106 R)
• M8: 5,962,223 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.7

Radius: 14.7

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.8 AU - 0.82 AU

Year: 494 Days

Day: 14.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,535,225 km

• M1: 182,809 km (0.113 R)
• M2: 789,129 km (0.091 R)
• M3: 1,685,519 km (0.057 R)
• M4: 2,192,806 km (0.091 R)
• M5: 2,911,773 km (0.075 R)
• M6: 3,513,156 km (0.101 R)
• M7: 4,069,960 km (0.112 R)
• M8: 4,579,041 km (0.117 R)
• M9: 5,097,847 km (0.112 R)
• M10: 5,923,028 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.5

Radius: 10.8

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.79 AU - 2.67 AU

Year: 2259 Days

Day: 12.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,535,225 km

• M1: 134,339 km (0.072 R)
• M2: 668,403 km (0.066 R)
• M3: 1,091,616 km (0.084 R)
• M4: 1,438,533 km (0.115 R)
• M5: 2,107,984 km (0.053 R)
• M6: 2,671,369 km (0.119 R)
• M7: 3,300,578 km (0.059 R)
• M8: 3,755,355 km (0.113 R)
• M9: 4,137,877 km (0.107 R)
• M10: 4,506,337 km (0.074 R)
• M11: 5,422,175 km (0.096 R)
• M12: 6,534,585 km (0.03 R)
• M13: 7,620,366 km (0.077 R)
• M14: 8,357,584 km (0.111 R)
• M15: 10,077,361 km (0.106 R)
• M16: 11,372,879 km (0.063 R)
• M17: 13,102,978 km (0.089 R)
• M18: 14,555,424 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.8

Radius: 9.6

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.11 AU - 3.31 AU

Year: 3026 Days

Day: 10.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,535,225 km

• M1: 119,379 km (0.08 R)
• M2: 636,838 km (0.091 R)
• M3: 1,633,908 km (0.101 R)
• M4: 2,080,308 km (0.079 R)
• M5: 4,610,906 km (0.081 R)
• M6: 5,296,961 km (0.042 R)
• M7: 5,625,329 km (0.119 R)
• M8: 6,473,698 km (0.095 R)
• M9: 6,894,667 km (0.091 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.2

Radius: 5.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.51 AU - 7.87 AU

Year: 11736 Days

Day: 19.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,535,225 km

• M1: 72,106 km (0.096 R)
• M2: 276,158 km (0.103 R)
• M3: 704,606 km (0.084 R)
• M4: 942,167 km (0.089 R)
• M5: 1,445,265 km (0.063 R)
• M6: 2,403,888 km (0.054 R)
• M7: 2,706,375 km (0.074 R)
• M8: 3,989,775 km (0.076 R)
• M9: 4,262,492 km (0.093 R)
• M10: 4,821,988 km (0.051 R)
• M11: 12,905,509 km (0.058 R)
• M12: 14,950,961 km (0.082 R)
• M13: 16,446,341 km (0.049 R)
• M14: 20,399,914 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355.2

Radius: 3.5

Gravity: 29 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 7.62 AU - 12.2 AU

Year: 21159 Days

Day: 18.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 154.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,535,225 km

• M1: 43,533 km (0.093 R)
• M2: 249,080 km (0.025 R)
• M3: 550,969 km (0.091 R)
• M4: 2,261,321 km (0.047 R)
• M5: 2,603,003 km (0.108 R)
• M6: 2,978,045 km (0.073 R)
• M7: 11,851,443 km (0.114 R)
• M8: 12,290,961 km (0.091 R)
• M9: 13,606,974 km (0.117 R)
• M10: 19,376,963 km (0.064 R)
• M11: 41,093,488 km (0.093 R)
• M12: 51,721,369 km (0.057 R)
• M13: 55,808,383 km (0.119 R)
• M14: 57,394,869 km (0.097 R)
• M15: 58,109,498 km (0.068 R)
• M16: 60,473,144 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189.3

Radius: 5.9

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 9.93 AU - 10.69 AU

Year: 22453 Days

Day: 19.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,535,225 km

• M1: 76,594 km (0.036 R)
• M2: 313,557 km (0.103 R)
• M3: 869,313 km (0.102 R)
• M4: 1,545,944 km (0.1 R)
• M5: 2,193,254 km (0.112 R)
• M6: 3,418,461 km (0.094 R)
• M7: 4,006,081 km (0.097 R)
• M8: 4,206,393 km (0.104 R)
• M9: 5,803,051 km (0.065 R)
• M10: 9,870,318 km (0.087 R)
• M11: 12,327,912 km (0.101 R)
• M12: 22,717,933 km (0.09 R)
• M13: 23,173,309 km (0.064 R)
• M14: 24,862,867 km (0.052 R)
• M15: 27,754,893 km (0.119 R)
• M16: 33,605,815 km (0.05 R)
• M17: 41,028,413 km (0.069 R)
• M18: 42,112,100 km (0.114 R)
• M19: 46,200,310 km (0.113 R)
• M20: 47,966,762 km (0.075 R)
• M21: 49,625,054 km (0.112 R)
• M22: 51,165,314 km (0.097 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 11,272 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit