🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.52 AU - 0.7 AU

Year: 308 Days

Day: 42.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702

Radius: 11.5

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.7 AU - 0.8 AU

Year: 419 Days

Day: 10.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,484,140 km

• M1: 143,016 km (0.103 R)
• M2: 515,514 km (0.091 R)
• M3: 889,060 km (0.112 R)
• M4: 1,259,016 km (0.115 R)
• M5: 2,524,464 km (0.081 R)
• M6: 2,927,331 km (0.114 R)
• M7: 3,361,614 km (0.079 R)
• M8: 4,127,555 km (0.087 R)
• M9: 5,177,433 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.2

Radius: 9.8

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.82 AU - 0.84 AU

Year: 488 Days

Day: 7 Hours

Environment

Temp: -152 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,484,140 km

• M1: 122,221 km (0.095 R)
• M2: 484,398 km (0.105 R)
• M3: 868,715 km (0.109 R)
• M4: 1,191,248 km (0.038 R)
• M5: 1,667,119 km (0.07 R)
• M6: 2,026,453 km (0.05 R)
• M7: 2,351,080 km (0.092 R)
• M8: 3,339,024 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.3

Radius: 14.8

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.87 AU - 1.33 AU

Year: 745 Days

Day: 12.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,484,140 km

• M1: 184,155 km (0.086 R)
• M2: 653,443 km (0.112 R)
• M3: 1,173,296 km (0.102 R)
• M4: 2,449,067 km (0.098 R)
• M5: 3,212,465 km (0.035 R)
• M6: 3,839,429 km (0.096 R)
• M7: 4,358,833 km (0.114 R)
• M8: 5,614,109 km (0.099 R)
• M9: 6,326,644 km (0.091 R)
• M10: 6,820,466 km (0.097 R)
• M11: 7,384,749 km (0.073 R)
• M12: 7,933,025 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.9

Radius: 11.5

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.12 AU - 2.26 AU

Year: 2093 Days

Day: 14.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,484,140 km

• M1: 143,016 km (0.088 R)
• M2: 614,099 km (0.097 R)
• M3: 1,040,902 km (0.089 R)
• M4: 1,513,930 km (0.1 R)
• M5: 1,913,955 km (0.087 R)
• M6: 2,384,889 km (0.095 R)
• M7: 3,000,185 km (0.107 R)
• M8: 3,457,356 km (0.082 R)
• M9: 4,161,962 km (0.096 R)
• M10: 4,864,324 km (0.113 R)
• M11: 5,334,810 km (0.11 R)
• M12: 5,965,664 km (0.113 R)
• M13: 6,459,337 km (0.081 R)
• M14: 6,907,532 km (0.06 R)
• M15: 7,300,974 km (0.085 R)
• M16: 9,027,484 km (0.074 R)
• M17: 9,408,958 km (0.079 R)
• M18: 10,110,572 km (0.092 R)
• M19: 11,110,783 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.9

Radius: 12.8

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.17 AU - 3.25 AU

Year: 2881 Days

Day: 8.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,484,140 km

• M1: 159,172 km (0.103 R)
• M2: 585,975 km (0.078 R)
• M3: 1,083,388 km (0.102 R)
• M4: 1,715,289 km (0.075 R)
• M5: 2,184,279 km (0.111 R)
• M6: 3,137,067 km (0.107 R)
• M7: 3,787,818 km (0.079 R)
• M8: 5,668,712 km (0.078 R)
• M9: 6,349,831 km (0.096 R)
• M10: 8,041,185 km (0.109 R)
• M11: 8,481,451 km (0.12 R)
• M12: 14,205,066 km (0.063 R)
• M13: 14,900,546 km (0.088 R)
• M14: 16,630,197 km (0.103 R)
• M15: 17,403,019 km (0.088 R)
• M16: 17,855,254 km (0.097 R)
• M17: 18,665,626 km (0.078 R)
• M18: 19,682,442 km (0.111 R)
• M19: 20,297,589 km (0.025 R)
• M20: 20,862,171 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468

Radius: 9.9

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 3.26 AU - 3.94 AU

Year: 4410 Days

Day: 11.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,484,140 km

• M1: 123,119 km (0.079 R)
• M2: 438,920 km (0.036 R)
• M3: 1,589,178 km (0.085 R)
• M4: 2,326,097 km (0.061 R)
• M5: 2,986,422 km (0.087 R)
• M6: 4,238,856 km (0.078 R)
• M7: 4,896,189 km (0.066 R)
• M8: 6,179,738 km (0.098 R)
• M9: 6,745,218 km (0.104 R)
• M10: 11,233,903 km (0.113 R)
• M11: 13,249,584 km (0.101 R)
• M12: 16,038,986 km (0.085 R)
• M13: 17,747,095 km (0.059 R)
• M14: 22,335,112 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.8

Radius: 4.3

Gravity: 34.39 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.52 AU - 7.06 AU

Year: 10186 Days

Day: 22.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 38,484,140 km

• M1: 53,855 km (0.073 R)
• M2: 194,627 km (0.093 R)
• M3: 393,442 km (0.075 R)
• M4: 530,025 km (0.119 R)
• M5: 682,914 km (0.112 R)
• M6: 1,091,316 km (0.11 R)
• M7: 1,381,836 km (0.045 R)
• M8: 2,080,607 km (0.05 R)
• M9: 2,371,575 km (0.084 R)
• M10: 5,315,063 km (0.089 R)
• M11: 5,650,012 km (0.029 R)
• M12: 7,334,185 km (0.103 R)
• M13: 8,490,876 km (0.073 R)
• M14: 9,230,787 km (0.075 R)
• M15: 9,962,620 km (0.119 R)
• M16: 10,575,522 km (0.11 R)
• M17: 12,331,951 km (0.052 R)
• M18: 16,691,233 km (0.112 R)
• M19: 18,826,892 km (0.053 R)
• M20: 19,682,442 km (0.082 R)
• M21: 21,807,181 km (0.087 R)
• M22: 21,976,675 km (0.069 R)
• M23: 22,490,394 km (0.05 R)
• M24: 23,720,388 km (0.119 R)
• M25: 24,261,035 km (0.116 R)
• M26: 24,625,904 km (0.116 R)
• M27: 25,180,164 km (0.097 R)
• M28: 30,866,678 km (0.043 R)
• M29: 34,982,415 km (0.058 R)
• M30: 36,391,926 km (0.056 R)
• M31: 37,595,142 km (0.088 R)
• M32: 40,846,951 km (0.102 R)
• M33: 46,768,633 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.5

Radius: 3

Gravity: 108.61 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.66 AU - 7.24 AU

Year: 10577 Days

Day: 22.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 38,484,140 km

• M1: 37,549 km (0.097 R)
• M2: 157,527 km (0.118 R)
• M3: 505,641 km (0.091 R)
• M4: 782,546 km (0.106 R)
• M5: 1,188,854 km (0.085 R)
• M6: 1,721,273 km (0.047 R)
• M7: 1,959,134 km (0.049 R)
• M8: 2,356,166 km (0.068 R)
• M9: 2,896,065 km (0.098 R)
• M10: 3,513,755 km (0.102 R)
• M11: 4,038,544 km (0.091 R)
• M12: 4,970,539 km (0.113 R)
• M13: 5,207,053 km (0.081 R)
• M14: 5,739,023 km (0.097 R)
• M15: 6,384,688 km (0.12 R)
• M16: 10,624,740 km (0.059 R)
• M17: 12,373,090 km (0.078 R)
• M18: 12,496,060 km (0.09 R)
• M19: 13,186,903 km (0.069 R)
• M20: 15,340,813 km (0.038 R)
• M21: 16,278,941 km (0.084 R)
• M22: 17,952,642 km (0.039 R)
• M23: 21,371,253 km (0.102 R)
• M24: 23,749,709 km (0.113 R)
• M25: 28,700,651 km (0.11 R)
• M26: 30,454,985 km (0.1 R)
• M27: 31,358,406 km (0.077 R)
• M28: 31,587,142 km (0.111 R)
• M29: 32,396,017 km (0.074 R)
• M30: 33,100,324 km (0.113 R)
• M31: 33,337,287 km (0.117 R)
• M32: 34,905,522 km (0.073 R)
• M33: 37,413,081 km (0.062 R)
• M34: 40,038,075 km (0.067 R)
• M35: 50,973,679 km (0.105 R)
• M36: 54,687,446 km (0.12 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230.7

Radius: 3.1

Gravity: 24.01 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.74 AU - 7.6 AU

Year: 12396 Days

Day: 21.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 38,484,140 km

• M1: 39,494 km (0.103 R)
• M2: 274,213 km (0.067 R)
• M3: 569,968 km (0.036 R)
• M4: 698,772 km (0.07 R)
• M5: 909,854 km (0.118 R)
• M6: 1,097,450 km (0.099 R)
• M7: 2,215,395 km (0.104 R)
• M8: 2,336,719 km (0.111 R)
• M9: 3,010,807 km (0.067 R)
• M10: 3,426,390 km (0.035 R)
• M11: 4,815,406 km (0.069 R)
• M12: 5,382,232 km (0.114 R)
• M13: 5,794,674 km (0.103 R)
• M14: 6,126,033 km (0.102 R)
• M15: 8,467,987 km (0.039 R)
• M16: 8,808,023 km (0.094 R)
• M17: 9,245,597 km (0.066 R)
• M18: 9,560,501 km (0.112 R)
• M19: 9,975,784 km (0.047 R)
• M20: 10,842,255 km (0.113 R)
• M21: 13,112,702 km (0.086 R)
• M22: 13,798,608 km (0.045 R)
• M23: 16,322,773 km (0.113 R)
• M24: 21,313,807 km (0.091 R)
• M25: 23,565,704 km (0.086 R)
• M26: 25,007,528 km (0.091 R)
• M27: 29,683,808 km (0.037 R)
• M28: 30,269,484 km (0.053 R)
• M29: 30,367,919 km (0.074 R)
• M30: 31,363,194 km (0.104 R)
• M31: 32,277,536 km (0.116 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: 186 - 12,184 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit