🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.6

Radius: 11.4

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.41 AU - 0.65 AU

Year: 271 Days

Day: 13.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,751,745 km

• M1: 141,819 km (0.105 R)
• M2: 540,946 km (0.055 R)
• M3: 956,230 km (0.106 R)
• M4: 1,590,375 km (0.034 R)
• M5: 2,167,673 km (0.106 R)
• M6: 2,653,717 km (0.057 R)
• M7: 3,161,601 km (0.035 R)
• M8: 3,611,891 km (0.087 R)
• M9: 3,986,185 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163

Radius: 12

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.51 AU - 0.61 AU

Year: 295 Days

Day: 13.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 84,751,745 km

• M1: 150,346 km (0.06 R)
• M2: 654,191 km (0.062 R)
• M3: 1,109,867 km (0.087 R)
• M4: 1,791,584 km (0.101 R)
• M5: 2,769,206 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.5

Radius: 10.9

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.62 AU - 1.92 AU

Year: 1655 Days

Day: 12.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,751,745 km

• M1: 135,536 km (0.111 R)
• M2: 593,904 km (0.073 R)
• M3: 1,617,602 km (0.03 R)
• M4: 2,449,216 km (0.073 R)
• M5: 3,905,701 km (0.117 R)
• M6: 5,301,001 km (0.111 R)
• M7: 8,527,228 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.8

Radius: 14.4

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.6 AU - 2.1 AU

Year: 1769 Days

Day: 6.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,751,745 km

• M1: 193,280 km (0.054 R)
• M2: 737,518 km (0.111 R)
• M3: 1,222,065 km (0.068 R)
• M4: 2,797,031 km (0.098 R)
• M5: 3,573,444 km (0.084 R)
• M6: 4,242,296 km (0.11 R)
• M7: 4,889,906 km (0.044 R)
• M8: 6,212,949 km (0.092 R)
• M9: 6,945,380 km (0.063 R)
• M10: 10,959,390 km (0.095 R)
• M11: 11,992,364 km (0.115 R)
• M12: 12,968,789 km (0.081 R)
• M13: 14,209,703 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 13.4

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.64 AU - 2.66 AU

Year: 2216 Days

Day: 6.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,751,745 km

• M1: 166,652 km (0.102 R)
• M2: 609,163 km (0.098 R)
• M3: 1,080,845 km (0.119 R)
• M4: 1,513,631 km (0.106 R)
• M5: 2,029,894 km (0.088 R)
• M6: 2,593,279 km (0.099 R)
• M7: 4,659,974 km (0.118 R)
• M8: 5,674,247 km (0.102 R)
• M9: 6,428,968 km (0.08 R)
• M10: 7,834,590 km (0.104 R)
• M11: 9,066,529 km (0.091 R)
• M12: 9,711,595 km (0.112 R)
• M13: 10,423,680 km (0.049 R)
• M14: 11,401,153 km (0.072 R)
• M15: 13,193,335 km (0.109 R)
• M16: 14,112,016 km (0.057 R)
• M17: 14,747,807 km (0.078 R)
• M18: 17,227,242 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438.6

Radius: 5.7

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.58 AU - 5.66 AU

Year: 9365 Days

Day: 17.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 98.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,751,745 km

• M1: 127,906 km (0.12 R)
• M2: 320,887 km (0.111 R)
• M3: 526,585 km (0.119 R)
• M4: 1,269,787 km (0.028 R)
• M5: 1,691,802 km (0.099 R)
• M6: 2,412,565 km (0.069 R)
• M7: 3,740,396 km (0.114 R)
• M8: 5,215,431 km (0.098 R)
• M9: 5,914,651 km (0.07 R)
• M10: 6,286,851 km (0.107 R)
• M11: 7,654,025 km (0.068 R)
• M12: 7,973,866 km (0.105 R)
• M13: 11,214,754 km (0.071 R)
• M14: 12,758,903 km (0.085 R)
• M15: 13,095,199 km (0.115 R)
• M16: 21,283,439 km (0.095 R)
• M17: 30,410,405 km (0.067 R)
• M18: 32,028,156 km (0.094 R)
• M19: 35,544,454 km (0.065 R)
• M20: 38,956,782 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 793.3

Radius: 6.3

Gravity: 19.99 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.14 AU - 6.84 AU

Year: 10305 Days

Day: 19.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 84,751,745 km

• M1: 78,389 km (0.11 R)
• M2: 276,756 km (0.082 R)
• M3: 624,272 km (0.114 R)
• M4: 908,807 km (0.101 R)
• M5: 1,133,204 km (0.12 R)
• M6: 2,718,044 km (0.071 R)
• M7: 3,190,773 km (0.078 R)
• M8: 3,850,200 km (0.115 R)
• M9: 6,960,490 km (0.113 R)
• M10: 7,583,266 km (0.098 R)
• M11: 9,474,781 km (0.076 R)
• M12: 10,879,505 km (0.069 R)
• M13: 11,265,168 km (0.039 R)
• M14: 12,899,824 km (0.06 R)
• M15: 14,290,486 km (0.076 R)
• M16: 15,431,469 km (0.043 R)
• M17: 19,618,714 km (0.117 R)
• M18: 22,855,114 km (0.063 R)
• M19: 23,124,839 km (0.101 R)
• M20: 27,531,095 km (0.081 R)
• M21: 28,662,054 km (0.057 R)
• M22: 29,930,644 km (0.088 R)
• M23: 32,240,136 km (0.111 R)
• M24: 33,960,661 km (0.05 R)
• M25: 37,833,900 km (0.107 R)
• M26: 41,857,484 km (0.119 R)
• M27: 44,879,810 km (0.072 R)
• M28: 46,157,077 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.9

Radius: 6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.59 AU - 8.83 AU

Year: 16536 Days

Day: 19.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,751,745 km

• M1: 78,090 km (0.115 R)
• M2: 527,183 km (0.094 R)
• M3: 797,207 km (0.09 R)
• M4: 996,172 km (0.104 R)
• M5: 1,438,683 km (0.108 R)
• M6: 1,698,385 km (0.078 R)
• M7: 2,139,100 km (0.081 R)
• M8: 2,743,326 km (0.077 R)
• M9: 4,041,237 km (0.05 R)
• M10: 4,308,269 km (0.078 R)
• M11: 5,293,969 km (0.1 R)
• M12: 6,071,280 km (0.083 R)
• M13: 8,266,180 km (0.052 R)
• M14: 9,689,604 km (0.053 R)
• M15: 12,908,501 km (0.086 R)
• M16: 15,216,796 km (0.117 R)
• M17: 19,789,854 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687.2

Radius: 7.4

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.33 AU - 10.41 AU

Year: 23473 Days

Day: 24 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,751,745 km

• M1: 92,601 km (0.064 R)
• M2: 407,355 km (0.094 R)
• M3: 654,491 km (0.091 R)
• M4: 2,156,753 km (0.081 R)
• M5: 2,517,732 km (0.086 R)
• M6: 2,840,265 km (0.092 R)
• M7: 3,079,472 km (0.116 R)
• M8: 4,774,266 km (0.079 R)
• M9: 5,429,356 km (0.095 R)
• M10: 7,858,227 km (0.104 R)
• M11: 8,994,273 km (0.073 R)
• M12: 10,995,144 km (0.052 R)
• M13: 14,564,998 km (0.114 R)
• M14: 22,703,721 km (0.084 R)
• M15: 24,320,874 km (0.088 R)
• M16: 31,167,370 km (0.047 R)
• M17: 32,087,696 km (0.1 R)
• M18: 33,570,510 km (0.083 R)
• M19: 48,674,510 km (0.074 R)
• M20: 62,428,239 km (0.116 R)
• M21: 64,310,629 km (0.094 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 14,101 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit