🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.7

Radius: 12.9

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.46 AU - 0.56 AU

Year: 247 Days

Day: 11.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,154,171 km

• M1: 160,369 km (0.097 R)
• M2: 581,786 km (0.113 R)
• M3: 1,064,090 km (0.099 R)
• M4: 2,185,924 km (0.098 R)
• M5: 2,641,599 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398

Radius: 15

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.03 AU - 1.47 AU

Year: 948 Days

Day: 10.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,154,171 km

• M1: 186,698 km (0.073 R)
• M2: 759,209 km (0.115 R)
• M3: 1,538,913 km (0.082 R)
• M4: 2,822,164 km (0.119 R)
• M5: 3,374,778 km (0.088 R)
• M6: 4,332,803 km (0.105 R)
• M7: 4,817,650 km (0.096 R)
• M8: 5,374,902 km (0.104 R)
• M9: 6,211,603 km (0.086 R)
• M10: 7,177,855 km (0.094 R)
• M11: 7,790,309 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108

Radius: 10.2

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.07 AU - 1.63 AU

Year: 1064 Days

Day: 6.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,154,171 km

• M1: 126,859 km (0.094 R)
• M2: 545,135 km (0.083 R)
• M3: 1,093,860 km (0.113 R)
• M4: 1,469,201 km (0.072 R)
• M5: 2,094,370 km (0.109 R)
• M6: 2,487,962 km (0.118 R)
• M7: 3,378,668 km (0.05 R)
• M8: 3,833,296 km (0.095 R)
• M9: 4,245,139 km (0.098 R)
• M10: 4,880,631 km (0.074 R)
• M11: 5,729,150 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.3

Radius: 14.6

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.94 AU - 3.18 AU

Year: 2778 Days

Day: 12.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,154,171 km

• M1: 181,612 km (0.09 R)
• M2: 804,089 km (0.051 R)
• M3: 1,335,161 km (0.076 R)
• M4: 1,968,558 km (0.06 R)
• M5: 2,484,671 km (0.119 R)
• M6: 3,142,154 km (0.103 R)
• M7: 4,585,025 km (0.077 R)
• M8: 5,042,645 km (0.085 R)
• M9: 6,158,496 km (0.079 R)
• M10: 8,232,371 km (0.099 R)
• M11: 10,154,404 km (0.109 R)
• M12: 11,179,898 km (0.114 R)
• M13: 11,634,077 km (0.049 R)
• M14: 13,162,069 km (0.052 R)
• M15: 13,809,529 km (0.092 R)
• M16: 15,725,579 km (0.107 R)
• M17: 16,191,875 km (0.095 R)
• M18: 17,925,116 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497

Radius: 9.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.58 AU - 5.04 AU

Year: 7155 Days

Day: 12.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,154,171 km

• M1: 119,379 km (0.116 R)
• M2: 421,417 km (0.103 R)
• M3: 1,221,167 km (0.086 R)
• M4: 1,551,629 km (0.049 R)
• M5: 1,927,718 km (0.06 R)
• M6: 2,233,197 km (0.06 R)
• M7: 2,697,549 km (0.09 R)
• M8: 3,061,969 km (0.107 R)
• M9: 3,750,718 km (0.12 R)
• M10: 4,083,124 km (0.067 R)
• M11: 4,383,517 km (0.117 R)
• M12: 5,258,216 km (0.101 R)
• M13: 6,147,276 km (0.119 R)
• M14: 7,097,821 km (0.051 R)
• M15: 7,872,887 km (0.11 R)
• M16: 8,581,083 km (0.115 R)
• M17: 9,288,382 km (0.104 R)
• M18: 10,215,291 km (0.076 R)
• M19: 15,732,759 km (0.097 R)
• M20: 16,919,070 km (0.048 R)
• M21: 17,632,503 km (0.092 R)
• M22: 18,706,017 km (0.112 R)
• M23: 23,838,421 km (0.111 R)
• M24: 27,559,817 km (0.114 R)
• M25: 28,275,643 km (0.03 R)
• M26: 31,167,071 km (0.062 R)
• M27: 33,435,872 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.1

Radius: 4.8

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.11 AU - 7.73 AU

Year: 13709 Days

Day: 24.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,154,171 km

• M1: 68,067 km (0.087 R)
• M2: 499,058 km (0.036 R)
• M3: 674,537 km (0.109 R)
• M4: 1,118,543 km (0.107 R)
• M5: 1,414,448 km (0.033 R)
• M6: 2,590,437 km (0.097 R)
• M7: 4,737,615 km (0.105 R)
• M8: 5,747,849 km (0.098 R)
• M9: 9,589,523 km (0.088 R)
• M10: 20,683,850 km (0.113 R)
• M11: 21,003,092 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 453.4

Radius: 5.3

Gravity: 16.14 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 5.75 AU - 9.19 AU

Year: 13848 Days

Day: 21 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,154,171 km

• M1: 113,246 km (0.079 R)
• M2: 329,714 km (0.071 R)
• M3: 595,549 km (0.051 R)
• M4: 773,571 km (0.053 R)
• M5: 1,143,825 km (0.109 R)
• M6: 1,451,399 km (0.1 R)
• M7: 4,916,085 km (0.103 R)
• M8: 5,277,214 km (0.118 R)
• M9: 5,550,979 km (0.051 R)
• M10: 6,662,192 km (0.044 R)
• M11: 8,689,392 km (0.096 R)
• M12: 11,830,648 km (0.112 R)
• M13: 14,431,856 km (0.12 R)
• M14: 15,308,500 km (0.12 R)
• M15: 17,093,053 km (0.099 R)
• M16: 18,150,560 km (0.117 R)
• M17: 18,774,234 km (0.065 R)
• M18: 19,492,603 km (0.113 R)
• M19: 19,899,658 km (0.103 R)
• M20: 22,461,372 km (0.091 R)
• M21: 24,568,159 km (0.115 R)
• M22: 26,405,071 km (0.081 R)
• M23: 26,903,232 km (0.09 R)
• M24: 32,009,307 km (0.109 R)
• M25: 38,230,185 km (0.108 R)
• M26: 42,705,405 km (0.089 R)
• M27: 48,402,541 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.9

Radius: 7.6

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.51 AU - 8.99 AU

Year: 14633 Days

Day: 21 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,154,171 km

• M1: 106,663 km (0.099 R)
• M2: 533,167 km (0.074 R)
• M3: 2,170,216 km (0.11 R)
• M4: 2,454,452 km (0.069 R)
• M5: 3,627,599 km (0.065 R)
• M6: 4,434,230 km (0.104 R)
• M7: 5,677,538 km (0.081 R)
• M8: 6,220,728 km (0.105 R)
• M9: 8,613,995 km (0.098 R)
• M10: 14,063,097 km (0.111 R)
• M11: 15,634,623 km (0.115 R)
• M12: 26,463,265 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.4

Radius: 5.9

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 8.06 AU - 12.06 AU

Year: 21642 Days

Day: 22.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,154,171 km

• M1: 73,453 km (0.116 R)
• M2: 271,071 km (0.111 R)
• M3: 1,670,410 km (0.09 R)
• M4: 1,962,126 km (0.105 R)
• M5: 2,344,797 km (0.116 R)
• M6: 3,715,562 km (0.047 R)
• M7: 8,093,394 km (0.106 R)
• M8: 8,550,565 km (0.098 R)
• M9: 12,070,005 km (0.089 R)
• M10: 14,508,450 km (0.072 R)
• M11: 20,002,432 km (0.104 R)
• M12: 39,709,408 km (0.102 R)
• M13: 48,048,443 km (0.095 R)
• M14: 51,222,311 km (0.099 R)
• M15: 51,998,125 km (0.044 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: 331 - 20,191 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit