🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.9

Radius: 8.6

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.54 AU - 0.86 AU

Year: 372 Days

Day: 12 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,131,018 km

• M1: 107,710 km (0.077 R)
• M2: 718,668 km (0.059 R)
• M3: 989,141 km (0.119 R)
• M4: 1,308,233 km (0.054 R)
• M5: 1,939,237 km (0.107 R)
• M6: 2,869,886 km (0.116 R)
• M7: 3,649,889 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.5

Radius: 8.5

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.73 AU - 2.25 AU

Year: 1785 Days

Day: 7 Hours

Environment

Temp: -184 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,131,018 km

• M1: 105,766 km (0.109 R)
• M2: 669,151 km (0.116 R)
• M3: 1,274,873 km (0.041 R)
• M4: 1,606,681 km (0.095 R)
• M5: 1,874,013 km (0.079 R)
• M6: 2,331,782 km (0.076 R)
• M7: 2,677,054 km (0.104 R)
• M8: 3,133,327 km (0.054 R)
• M9: 4,777,408 km (0.117 R)
• M10: 5,359,793 km (0.085 R)
• M11: 5,656,744 km (0.086 R)
• M12: 6,744,171 km (0.044 R)
• M13: 7,477,201 km (0.118 R)
• M14: 8,597,390 km (0.106 R)
• M15: 9,524,747 km (0.077 R)
• M16: 9,961,423 km (0.034 R)
• M17: 10,236,833 km (0.093 R)
• M18: 11,652,777 km (0.076 R)
• M19: 12,467,038 km (0.048 R)
• M20: 13,112,553 km (0.093 R)
• M21: 14,122,338 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.9

Radius: 14.2

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.75 AU - 3.11 AU

Year: 3189 Days

Day: 9.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,131,018 km

• M1: 182,958 km (0.104 R)
• M2: 670,797 km (0.108 R)
• M3: 1,146,069 km (0.053 R)
• M4: 1,594,265 km (0.107 R)
• M5: 2,642,048 km (0.114 R)
• M6: 3,778,842 km (0.07 R)
• M7: 4,414,334 km (0.049 R)
• M8: 5,145,419 km (0.096 R)
• M9: 5,606,180 km (0.068 R)
• M10: 6,436,000 km (0.093 R)
• M11: 9,236,322 km (0.071 R)
• M12: 10,967,768 km (0.086 R)
• M13: 14,204,467 km (0.066 R)
• M14: 17,227,541 km (0.097 R)
• M15: 21,695,581 km (0.097 R)
• M16: 22,228,000 km (0.052 R)
• M17: 22,700,878 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.7

Radius: 13.5

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.86 AU - 4.52 AU

Year: 5453 Days

Day: 10.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,131,018 km

• M1: 168,746 km (0.1 R)
• M2: 2,112,621 km (0.057 R)
• M3: 3,444,042 km (0.112 R)
• M4: 5,679,782 km (0.066 R)
• M5: 6,166,723 km (0.087 R)
• M6: 6,781,271 km (0.059 R)
• M7: 7,543,622 km (0.098 R)
• M8: 8,057,940 km (0.052 R)
• M9: 14,074,317 km (0.092 R)
• M10: 15,490,411 km (0.061 R)
• M11: 18,080,249 km (0.111 R)
• M12: 20,519,742 km (0.094 R)
• M13: 21,090,308 km (0.034 R)
• M14: 22,337,954 km (0.058 R)
• M15: 22,789,889 km (0.079 R)
• M16: 25,795,460 km (0.037 R)
• M17: 28,347,899 km (0.083 R)
• M18: 28,966,935 km (0.098 R)
• M19: 30,140,381 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.6

Radius: 7.7

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 8.22 AU - 12.2 AU

Year: 20743 Days

Day: 18.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,131,018 km

• M1: 95,892 km (0.118 R)
• M2: 531,970 km (0.067 R)
• M3: 851,361 km (0.073 R)
• M4: 1,421,180 km (0.102 R)
• M5: 1,790,537 km (0.096 R)
• M6: 2,656,858 km (0.079 R)
• M7: 3,296,539 km (0.097 R)
• M8: 3,976,311 km (0.055 R)
• M9: 4,681,217 km (0.112 R)
• M10: 5,012,576 km (0.065 R)
• M11: 8,350,254 km (0.106 R)
• M12: 8,641,072 km (0.074 R)
• M13: 9,449,649 km (0.098 R)
• M14: 9,925,968 km (0.033 R)
• M15: 12,869,755 km (0.116 R)
• M16: 13,855,306 km (0.088 R)
• M17: 15,754,750 km (0.095 R)
• M18: 22,391,360 km (0.105 R)
• M19: 31,024,953 km (0.068 R)
• M20: 32,194,958 km (0.114 R)
• M21: 34,127,613 km (0.048 R)
• M22: 34,747,097 km (0.116 R)
• M23: 51,472,139 km (0.106 R)
• M24: 55,120,831 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.8

Radius: 4.1

Gravity: 31.64 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.69 AU - 11.79 AU

Year: 20835 Days

Day: 20.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 71,131,018 km

• M1: 52,210 km (0.114 R)
• M2: 397,631 km (0.119 R)
• M3: 567,275 km (0.093 R)
• M4: 1,213,987 km (0.1 R)
• M5: 1,593,816 km (0.113 R)
• M6: 2,009,399 km (0.114 R)
• M7: 2,274,187 km (0.097 R)
• M8: 2,923,591 km (0.119 R)
• M9: 3,345,906 km (0.106 R)
• M10: 3,543,076 km (0.098 R)
• M11: 4,149,097 km (0.08 R)
• M12: 4,476,716 km (0.09 R)
• M13: 5,486,203 km (0.086 R)
• M14: 5,880,991 km (0.088 R)
• M15: 6,294,181 km (0.081 R)
• M16: 6,995,496 km (0.072 R)
• M17: 7,459,249 km (0.117 R)
• M18: 8,603,523 km (0.096 R)
• M19: 9,299,602 km (0.109 R)
• M20: 9,746,152 km (0.068 R)
• M21: 10,501,920 km (0.097 R)
• M22: 13,490,586 km (0.081 R)
• M23: 13,632,106 km (0.089 R)
• M24: 14,135,054 km (0.096 R)
• M25: 15,640,158 km (0.11 R)
• M26: 19,142,244 km (0.082 R)
• M27: 21,169,595 km (0.078 R)
• M28: 23,437,498 km (0.083 R)
• M29: 24,054,739 km (0.078 R)
• M30: 26,521,159 km (0.051 R)
• M31: 27,078,860 km (0.117 R)
• M32: 31,203,124 km (0.096 R)
• M33: 32,963,592 km (0.104 R)
• M34: 39,501,467 km (0.113 R)
• M35: 41,112,487 km (0.09 R)
• M36: 43,842,199 km (0.086 R)
• M37: 43,997,332 km (0.115 R)
• M38: 44,308,645 km (0.063 R)
• M39: 45,409,835 km (0.118 R)
• M40: 51,018,559 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 461

Radius: 5.4

Gravity: 15.81 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 10.63 AU - 10.63 AU

Year: 22036 Days

Day: 16.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,131,018 km

• M1: 68,067 km (0.091 R)
• M2: 262,095 km (0.077 R)
• M3: 448,046 km (0.117 R)
• M4: 966,103 km (0.116 R)
• M5: 1,389,615 km (0.114 R)
• M6: 1,947,764 km (0.07 R)
• M7: 2,246,212 km (0.099 R)
• M8: 2,644,292 km (0.105 R)
• M9: 3,219,645 km (0.077 R)
• M10: 4,091,053 km (0.115 R)
• M11: 5,220,068 km (0.051 R)
• M12: 6,542,812 km (0.107 R)
• M13: 8,376,733 km (0.101 R)
• M14: 12,019,890 km (0.12 R)
• M15: 15,111,928 km (0.09 R)
• M16: 17,003,593 km (0.115 R)
• M17: 19,854,480 km (0.093 R)
• M18: 23,008,601 km (0.096 R)
• M19: 26,481,217 km (0.109 R)
• M20: 27,712,258 km (0.065 R)
• M21: 31,882,298 km (0.096 R)
• M22: 42,639,881 km (0.063 R)
• M23: 65,933,317 km (0.05 R)
• M24: 66,543,227 km (0.086 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 15,961 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit