🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.2

Radius: 8.1

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.64 AU - 0.98 AU

Year: 512 Days

Day: 9.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,631,405 km

• M1: 100,679 km (0.115 R)
• M2: 549,323 km (0.058 R)
• M3: 932,444 km (0.064 R)
• M4: 1,316,012 km (0.037 R)
• M5: 1,625,530 km (0.11 R)
• M6: 2,634,867 km (0.115 R)
• M7: 3,373,582 km (0.093 R)
• M8: 3,627,599 km (0.112 R)
• M9: 4,161,065 km (0.077 R)
• M10: 4,496,912 km (0.099 R)
• M11: 5,400,184 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.9

Radius: 14.9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.05 AU - 1.09 AU

Year: 778 Days

Day: 11.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,631,405 km

• M1: 187,446 km (0.071 R)
• M2: 725,250 km (0.119 R)
• M3: 1,202,168 km (0.098 R)
• M4: 2,091,977 km (0.118 R)
• M5: 2,584,453 km (0.097 R)
• M6: 3,513,007 km (0.119 R)
• M7: 4,002,641 km (0.079 R)
• M8: 6,631,075 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.1

Radius: 8.8

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.98 AU - 1.36 AU

Year: 890 Days

Day: 7.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,631,405 km

• M1: 109,506 km (0.084 R)
• M2: 401,521 km (0.104 R)
• M3: 691,142 km (0.088 R)
• M4: 1,026,989 km (0.101 R)
• M5: 1,552,826 km (0.115 R)
• M6: 1,887,327 km (0.11 R)
• M7: 2,390,275 km (0.089 R)
• M8: 2,679,896 km (0.052 R)
• M9: 3,111,636 km (0.104 R)
• M10: 4,329,362 km (0.059 R)
• M11: 5,073,612 km (0.096 R)
• M12: 6,110,026 km (0.089 R)
• M13: 7,719,998 km (0.073 R)
• M14: 8,516,457 km (0.046 R)
• M15: 9,141,926 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.1

Radius: 14.7

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.11 AU - 1.85 AU

Year: 1266 Days

Day: 10.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,631,405 km

• M1: 182,809 km (0.09 R)
• M2: 684,111 km (0.118 R)
• M3: 1,180,926 km (0.075 R)
• M4: 1,673,851 km (0.103 R)
• M5: 2,582,957 km (0.05 R)
• M6: 3,437,609 km (0.041 R)
• M7: 4,356,888 km (0.054 R)
• M8: 4,821,539 km (0.093 R)
• M9: 5,473,487 km (0.077 R)
• M10: 6,162,834 km (0.027 R)
• M11: 6,978,142 km (0.09 R)
• M12: 8,717,367 km (0.069 R)
• M13: 9,263,699 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.7

Radius: 10.4

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.61 AU - 2.29 AU

Year: 1914 Days

Day: 6.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 65.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,631,405 km

• M1: 129,402 km (0.092 R)
• M2: 455,077 km (0.08 R)
• M3: 859,739 km (0.101 R)
• M4: 1,407,566 km (0.101 R)
• M5: 1,736,083 km (0.032 R)
• M6: 2,092,874 km (0.1 R)
• M7: 2,678,550 km (0.09 R)
• M8: 3,033,695 km (0.074 R)
• M9: 3,387,045 km (0.057 R)
• M10: 5,219,619 km (0.088 R)
• M11: 5,729,748 km (0.111 R)
• M12: 6,146,677 km (0.109 R)
• M13: 6,583,653 km (0.091 R)
• M14: 7,320,273 km (0.089 R)
• M15: 8,141,415 km (0.068 R)
• M16: 8,605,917 km (0.084 R)
• M17: 9,120,833 km (0.109 R)
• M18: 9,656,094 km (0.1 R)
• M19: 10,390,470 km (0.066 R)
• M20: 11,426,884 km (0.067 R)
• M21: 12,490,375 km (0.117 R)
• M22: 15,647,638 km (0.084 R)
• M23: 15,980,493 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.4

Radius: 10.1

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.12 AU - 2.3 AU

Year: 2309 Days

Day: 11.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,631,405 km

• M1: 125,662 km (0.066 R)
• M2: 557,850 km (0.116 R)
• M3: 929,152 km (0.034 R)
• M4: 1,358,947 km (0.113 R)
• M5: 2,245,464 km (0.107 R)
• M6: 2,565,903 km (0.081 R)
• M7: 3,313,144 km (0.03 R)
• M8: 3,717,657 km (0.107 R)
• M9: 4,288,373 km (0.117 R)
• M10: 4,982,656 km (0.036 R)
• M11: 6,010,094 km (0.109 R)
• M12: 6,375,861 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.7

Radius: 9.7

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.66 AU - 6.1 AU

Year: 7578 Days

Day: 7.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,631,405 km

• M1: 120,576 km (0.114 R)
• M2: 702,212 km (0.027 R)
• M3: 1,142,629 km (0.115 R)
• M4: 1,914,554 km (0.105 R)
• M5: 2,480,183 km (0.113 R)
• M6: 3,944,447 km (0.079 R)
• M7: 4,832,310 km (0.1 R)
• M8: 6,961,687 km (0.035 R)
• M9: 10,036,820 km (0.099 R)
• M10: 10,940,840 km (0.083 R)
• M11: 11,359,565 km (0.086 R)
• M12: 11,680,751 km (0.101 R)
• M13: 12,737,810 km (0.05 R)
• M14: 14,660,292 km (0.103 R)
• M15: 15,559,525 km (0.119 R)
• M16: 17,185,654 km (0.074 R)
• M17: 21,497,064 km (0.108 R)
• M18: 23,166,427 km (0.061 R)
• M19: 27,044,901 km (0.039 R)
• M20: 28,493,906 km (0.066 R)
• M21: 30,095,800 km (0.09 R)
• M22: 30,505,549 km (0.079 R)
• M23: 32,609,942 km (0.051 R)
• M24: 36,638,763 km (0.118 R)
• M25: 40,612,680 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 130.2

Radius: 5.5

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 4.76 AU - 6.28 AU

Year: 9116 Days

Day: 18.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,631,405 km

• M1: 68,366 km (0.085 R)
• M2: 358,885 km (0.082 R)
• M3: 538,552 km (0.115 R)
• M4: 1,234,332 km (0.067 R)
• M5: 1,613,114 km (0.099 R)
• M6: 2,038,271 km (0.09 R)
• M7: 2,439,044 km (0.101 R)
• M8: 2,649,977 km (0.086 R)
• M9: 3,598,278 km (0.063 R)
• M10: 4,025,679 km (0.102 R)
• M11: 4,344,621 km (0.057 R)
• M12: 5,007,041 km (0.073 R)
• M13: 5,848,080 km (0.093 R)
• M14: 6,842,906 km (0.059 R)
• M15: 10,246,108 km (0.044 R)
• M16: 10,754,142 km (0.082 R)
• M17: 10,927,227 km (0.11 R)
• M18: 11,958,555 km (0.086 R)
• M19: 12,809,766 km (0.102 R)
• M20: 14,161,383 km (0.079 R)
• M21: 16,334,292 km (0.117 R)
• M22: 18,164,173 km (0.1 R)
• M23: 19,542,718 km (0.069 R)
• M24: 23,508,707 km (0.068 R)
• M25: 24,391,334 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 214.7

Radius: 4.6

Gravity: 10.15 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.24 AU - 7.18 AU

Year: 10878 Days

Day: 23.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 36,631,405 km

• M1: 57,296 km (0.075 R)
• M2: 271,371 km (0.111 R)
• M3: 428,299 km (0.114 R)
• M4: 696,976 km (0.03 R)
• M5: 878,439 km (0.051 R)
• M6: 1,101,340 km (0.054 R)
• M7: 1,384,827 km (0.099 R)
• M8: 1,701,676 km (0.097 R)
• M9: 2,112,472 km (0.109 R)
• M10: 3,190,175 km (0.095 R)
• M11: 3,558,933 km (0.113 R)
• M12: 5,411,105 km (0.06 R)
• M13: 6,095,066 km (0.093 R)
• M14: 7,190,422 km (0.064 R)
• M15: 8,172,232 km (0.103 R)
• M16: 9,807,487 km (0.109 R)
• M17: 10,168,018 km (0.119 R)
• M18: 13,708,850 km (0.093 R)
• M19: 16,688,690 km (0.113 R)
• M20: 18,328,881 km (0.118 R)
• M21: 19,013,889 km (0.087 R)
• M22: 19,858,519 km (0.103 R)
• M23: 21,171,689 km (0.1 R)
• M24: 22,232,188 km (0.05 R)
• M25: 23,727,569 km (0.094 R)
• M26: 24,213,313 km (0.107 R)
• M27: 24,540,932 km (0.098 R)
• M28: 25,372,696 km (0.099 R)
• M29: 27,268,401 km (0.105 R)
• M30: 28,522,779 km (0.085 R)
• M31: 34,438,477 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.7

Radius: 4.3

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.48 AU - 8.33 AU

Year: 14150 Days

Day: 22.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 36,631,405 km

• M1: 54,603 km (0.118 R)
• M2: 192,383 km (0.085 R)
• M3: 382,671 km (0.031 R)
• M4: 822,489 km (0.1 R)
• M5: 1,218,624 km (0.066 R)
• M6: 1,568,534 km (0.1 R)
• M7: 2,173,507 km (0.078 R)
• M8: 2,324,901 km (0.085 R)
• M9: 3,298,483 km (0.077 R)
• M10: 3,453,766 km (0.072 R)
• M11: 4,383,218 km (0.118 R)
• M12: 4,625,716 km (0.088 R)
• M13: 6,827,497 km (0.12 R)
• M14: 8,193,775 km (0.118 R)
• M15: 10,006,302 km (0.109 R)
• M16: 11,554,790 km (0.042 R)
• M17: 11,758,841 km (0.102 R)
• M18: 15,117,463 km (0.104 R)
• M19: 23,563,460 km (0.11 R)
• M20: 25,407,553 km (0.099 R)
• M21: 26,718,778 km (0.103 R)
• M22: 26,896,949 km (0.109 R)
• M23: 27,708,518 km (0.099 R)
• M24: 29,097,235 km (0.119 R)
• M25: 33,437,218 km (0.117 R)
• M26: 34,060,443 km (0.055 R)
• M27: 34,585,831 km (0.112 R)
• M28: 35,223,267 km (0.089 R)
• M29: 36,412,421 km (0.112 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: 432 - 14,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit