🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.1

Radius: 9.3

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.87 AU - 0.89 AU

Year: 560 Days

Day: 13.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,207,417 km

• M1: 115,639 km (0.115 R)
• M2: 443,109 km (0.086 R)
• M3: 788,830 km (0.05 R)
• M4: 1,226,852 km (0.093 R)
• M5: 1,517,371 km (0.087 R)
• M6: 1,936,245 km (0.09 R)
• M7: 2,382,795 km (0.066 R)
• M8: 2,746,019 km (0.095 R)
• M9: 3,832,398 km (0.09 R)
• M10: 4,190,087 km (0.115 R)
• M11: 5,957,436 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.4

Radius: 11.2

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.99 AU - 1.23 AU

Year: 793 Days

Day: 11.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,207,417 km

• M1: 139,724 km (0.044 R)
• M2: 669,450 km (0.064 R)
• M3: 1,107,174 km (0.094 R)
• M4: 1,527,245 km (0.076 R)
• M5: 3,361,913 km (0.061 R)
• M6: 4,912,495 km (0.032 R)
• M7: 6,220,728 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.3

Radius: 14.8

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.22 AU - 4.76 AU

Year: 5406 Days

Day: 8.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 74,207,417 km

• M1: 188,045 km (0.074 R)
• M2: 651,798 km (0.08 R)
• M3: 1,595,162 km (0.101 R)
• M4: 2,121,447 km (0.086 R)
• M5: 2,636,812 km (0.101 R)
• M6: 3,492,213 km (0.061 R)
• M7: 4,218,959 km (0.112 R)
• M8: 4,960,516 km (0.043 R)
• M9: 5,913,155 km (0.107 R)
• M10: 6,433,756 km (0.105 R)
• M11: 7,127,591 km (0.108 R)
• M12: 8,025,627 km (0.08 R)
• M13: 8,502,395 km (0.059 R)
• M14: 9,253,077 km (0.062 R)
• M15: 11,976,806 km (0.109 R)
• M16: 12,760,399 km (0.102 R)
• M17: 15,378,362 km (0.119 R)
• M18: 18,132,758 km (0.038 R)
• M19: 18,887,180 km (0.1 R)
• M20: 22,898,647 km (0.108 R)
• M21: 23,376,762 km (0.102 R)
• M22: 26,474,634 km (0.119 R)
• M23: 27,445,973 km (0.1 R)
• M24: 30,985,609 km (0.096 R)
• M25: 32,563,268 km (0.042 R)
• M26: 33,371,844 km (0.107 R)
• M27: 34,401,377 km (0.095 R)
• M28: 35,664,581 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.2

Radius: 12.6

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 5.09 AU - 5.21 AU

Year: 7927 Days

Day: 12.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,207,417 km

• M1: 157,227 km (0.091 R)
• M2: 815,009 km (0.045 R)
• M3: 3,715,562 km (0.112 R)
• M4: 5,316,110 km (0.068 R)
• M5: 6,883,746 km (0.097 R)
• M6: 7,369,490 km (0.03 R)
• M7: 11,890,787 km (0.069 R)
• M8: 13,469,194 km (0.093 R)
• M9: 15,510,008 km (0.116 R)
• M10: 20,658,269 km (0.071 R)
• M11: 25,828,072 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.3

Radius: 6.4

Gravity: 15.02 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.67 AU - 7.63 AU

Year: 11631 Days

Day: 22.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,207,417 km

• M1: 269,725 km (0.086 R)
• M2: 1,008,589 km (0.066 R)
• M3: 1,500,317 km (0.081 R)
• M4: 1,768,845 km (0.074 R)
• M5: 3,599,474 km (0.108 R)
• M6: 5,381,933 km (0.063 R)
• M7: 6,974,402 km (0.066 R)
• M8: 7,597,029 km (0.09 R)
• M9: 11,277,136 km (0.084 R)
• M10: 12,607,959 km (0.026 R)
• M11: 13,593,360 km (0.06 R)
• M12: 14,234,686 km (0.112 R)
• M13: 21,112,149 km (0.103 R)
• M14: 24,129,389 km (0.103 R)
• M15: 25,837,497 km (0.085 R)
• M16: 32,676,812 km (0.116 R)
• M17: 38,311,865 km (0.101 R)
• M18: 38,819,301 km (0.057 R)
• M19: 43,452,796 km (0.061 R)
• M20: 45,546,717 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.9

Radius: 6.4

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 7.55 AU - 12.21 AU

Year: 21063 Days

Day: 16.2 Hours

Environment

Temp: -244 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,207,417 km

• M1: 167,849 km (0.098 R)
• M2: 388,954 km (0.113 R)
• M3: 604,226 km (0.046 R)
• M4: 858,243 km (0.071 R)
• M5: 2,081,056 km (0.029 R)
• M6: 2,309,342 km (0.082 R)
• M7: 7,108,292 km (0.032 R)
• M8: 9,179,774 km (0.061 R)
• M9: 10,145,877 km (0.059 R)
• M10: 11,882,260 km (0.047 R)
• M11: 18,881,046 km (0.107 R)
• M12: 20,531,111 km (0.079 R)
• M13: 26,610,768 km (0.055 R)
• M14: 28,798,189 km (0.078 R)
• M15: 31,729,110 km (0.119 R)
• M16: 33,006,825 km (0.103 R)
• M17: 33,527,426 km (0.109 R)
• M18: 38,461,613 km (0.045 R)
• M19: 39,038,013 km (0.064 R)
• M20: 52,337,413 km (0.116 R)
• M21: 55,572,617 km (0.067 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 19,543 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit