🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.2

Radius: 9

Gravity: 10.15 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.45 AU - 0.67 AU

Year: 284 Days

Day: 8.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,087,213 km

• M1: 111,899 km (0.029 R)
• M2: 422,016 km (0.053 R)
• M3: 715,676 km (0.034 R)
• M4: 1,112,559 km (0.115 R)
• M5: 1,700,778 km (0.106 R)
• M6: 2,713,107 km (0.057 R)
• M7: 2,997,193 km (0.071 R)
• M8: 3,466,482 km (0.088 R)
• M9: 3,766,426 km (0.097 R)
• M10: 4,249,028 km (0.096 R)
• M11: 4,606,717 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.9

Radius: 9.1

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.81 AU - 1.2 AU

Year: 678 Days

Day: 5.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,087,213 km

• M1: 113,395 km (0.11 R)
• M2: 524,341 km (0.086 R)
• M3: 839,543 km (0.095 R)
• M4: 1,291,329 km (0.103 R)
• M5: 1,650,962 km (0.09 R)
• M6: 1,973,346 km (0.068 R)
• M7: 2,817,825 km (0.109 R)
• M8: 3,498,645 km (0.047 R)
• M9: 4,051,410 km (0.109 R)
• M10: 5,423,671 km (0.038 R)
• M11: 6,063,351 km (0.09 R)
• M12: 7,262,977 km (0.062 R)
• M13: 7,609,595 km (0.111 R)
• M14: 8,015,903 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.5

Radius: 14.7

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.9 AU - 1.26 AU

Year: 761 Days

Day: 7.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,087,213 km

• M1: 182,809 km (0.07 R)
• M2: 718,967 km (0.115 R)
• M3: 1,176,438 km (0.032 R)
• M4: 1,644,679 km (0.118 R)
• M5: 2,432,611 km (0.105 R)
• M6: 3,053,293 km (0.105 R)
• M7: 3,764,780 km (0.101 R)
• M8: 5,125,522 km (0.091 R)
• M9: 5,997,079 km (0.037 R)
• M10: 6,687,623 km (0.065 R)
• M11: 7,295,589 km (0.094 R)
• M12: 7,799,135 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.9

Radius: 14.2

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.17 AU - 1.49 AU

Year: 1040 Days

Day: 10.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,087,213 km

• M1: 176,525 km (0.114 R)
• M2: 887,564 km (0.096 R)
• M3: 1,649,616 km (0.11 R)
• M4: 2,304,555 km (0.096 R)
• M5: 2,787,158 km (0.075 R)
• M6: 3,232,361 km (0.029 R)
• M7: 4,511,124 km (0.076 R)
• M8: 5,184,314 km (0.061 R)
• M9: 6,288,496 km (0.115 R)
• M10: 7,063,263 km (0.084 R)
• M11: 8,648,702 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.6

Radius: 11.1

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.56 AU - 2.36 AU

Year: 1861 Days

Day: 13.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,087,213 km

• M1: 138,079 km (0.09 R)
• M2: 834,756 km (0.108 R)
• M3: 1,347,727 km (0.1 R)
• M4: 1,896,602 km (0.052 R)
• M5: 2,317,421 km (0.074 R)
• M6: 3,460,199 km (0.064 R)
• M7: 4,204,747 km (0.045 R)
• M8: 4,910,101 km (0.09 R)
• M9: 5,422,923 km (0.071 R)
• M10: 6,406,529 km (0.073 R)
• M11: 7,671,828 km (0.093 R)
• M12: 8,568,966 km (0.034 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.3

Radius: 10.4

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.56 AU - 3.86 AU

Year: 3901 Days

Day: 8.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,087,213 km

• M1: 129,402 km (0.055 R)
• M2: 472,729 km (0.108 R)
• M3: 845,078 km (0.096 R)
• M4: 1,175,540 km (0.11 R)
• M5: 1,687,614 km (0.063 R)
• M6: 2,226,316 km (0.064 R)
• M7: 3,108,345 km (0.111 R)
• M8: 3,488,922 km (0.074 R)
• M9: 4,484,645 km (0.12 R)
• M10: 4,997,915 km (0.111 R)
• M11: 5,415,144 km (0.081 R)
• M12: 7,125,795 km (0.117 R)
• M13: 8,317,941 km (0.11 R)
• M14: 9,441,720 km (0.108 R)
• M15: 9,797,763 km (0.06 R)
• M16: 11,181,094 km (0.045 R)
• M17: 11,535,193 km (0.05 R)
• M18: 13,819,702 km (0.084 R)
• M19: 14,434,848 km (0.11 R)
• M20: 17,079,888 km (0.104 R)
• M21: 19,838,622 km (0.065 R)
• M22: 22,249,392 km (0.086 R)
• M23: 22,952,353 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.1

Radius: 14.7

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.38 AU - 5.28 AU

Year: 7200 Days

Day: 6.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 78,087,213 km

• M1: 182,809 km (0.075 R)
• M2: 690,993 km (0.092 R)
• M3: 1,411,007 km (0.116 R)
• M4: 3,066,008 km (0.071 R)
• M5: 3,989,925 km (0.066 R)
• M6: 5,092,760 km (0.099 R)
• M7: 6,355,366 km (0.117 R)
• M8: 8,143,809 km (0.111 R)
• M9: 11,609,692 km (0.114 R)
• M10: 12,197,911 km (0.116 R)
• M11: 12,693,828 km (0.082 R)
• M12: 13,785,444 km (0.034 R)
• M13: 17,093,202 km (0.11 R)
• M14: 18,785,304 km (0.099 R)
• M15: 19,974,009 km (0.062 R)
• M16: 21,370,505 km (0.102 R)
• M17: 24,618,424 km (0.118 R)
• M18: 26,223,310 km (0.113 R)
• M19: 28,374,079 km (0.11 R)
• M20: 29,938,124 km (0.109 R)
• M21: 31,250,696 km (0.111 R)
• M22: 32,390,931 km (0.064 R)
• M23: 34,975,085 km (0.063 R)
• M24: 35,753,891 km (0.1 R)
• M25: 37,231,170 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 938.3

Radius: 3.1

Gravity: 97.64 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.52 AU - 10.12 AU

Year: 17766 Days

Day: 17.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,087,213 km

• M1: 38,596 km (0.043 R)
• M2: 218,114 km (0.12 R)
• M3: 471,383 km (0.106 R)
• M4: 582,385 km (0.048 R)
• M5: 1,770,341 km (0.084 R)
• M6: 2,062,655 km (0.049 R)
• M7: 4,187,394 km (0.076 R)
• M8: 5,904,030 km (0.101 R)
• M9: 6,507,358 km (0.071 R)
• M10: 11,923,249 km (0.084 R)
• M11: 13,966,607 km (0.064 R)
• M12: 14,876,311 km (0.107 R)
• M13: 15,109,834 km (0.069 R)
• M14: 23,935,659 km (0.103 R)
• M15: 34,030,224 km (0.096 R)
• M16: 37,505,682 km (0.058 R)
• M17: 47,970,203 km (0.068 R)
• M18: 52,145,928 km (0.115 R)
• M19: 59,828,527 km (0.081 R)
• M20: 60,616,160 km (0.094 R)
• M21: 67,379,031 km (0.053 R)
• M22: 68,231,439 km (0.065 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: 535 - 11,441 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit