🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.3

Radius: 11.6

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.54 AU - 0.76 AU

Year: 362 Days

Day: 12.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,110,231 km

• M1: 144,212 km (0.09 R)
• M2: 509,082 km (0.099 R)
• M3: 925,712 km (0.096 R)
• M4: 1,344,286 km (0.071 R)
• M5: 2,117,109 km (0.113 R)
• M6: 2,682,739 km (0.08 R)
• M7: 4,219,707 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.3

Radius: 8.8

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.17 AU - 2.53 AU

Year: 2487 Days

Day: 10.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,110,231 km

• M1: 109,506 km (0.07 R)
• M2: 442,361 km (0.03 R)
• M3: 898,485 km (0.118 R)
• M4: 1,399,937 km (0.061 R)
• M5: 2,078,363 km (0.107 R)
• M6: 2,446,673 km (0.105 R)
• M7: 2,858,367 km (0.031 R)
• M8: 3,347,701 km (0.118 R)
• M9: 3,803,376 km (0.1 R)
• M10: 5,907,470 km (0.096 R)
• M11: 6,271,741 km (0.118 R)
• M12: 8,174,327 km (0.091 R)
• M13: 10,644,188 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.2

Radius: 12.5

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.16 AU - 3.44 AU

Year: 4138 Days

Day: 12.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 131.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,110,231 km

• M1: 155,582 km (0.116 R)
• M2: 676,332 km (0.111 R)
• M3: 2,269,250 km (0.107 R)
• M4: 3,808,163 km (0.117 R)
• M5: 5,362,635 km (0.106 R)
• M6: 5,844,639 km (0.099 R)
• M7: 6,384,837 km (0.097 R)
• M8: 6,773,492 km (0.101 R)
• M9: 7,369,939 km (0.119 R)
• M10: 7,831,748 km (0.108 R)
• M11: 9,525,345 km (0.117 R)
• M12: 10,726,915 km (0.09 R)
• M13: 11,192,015 km (0.034 R)
• M14: 11,758,991 km (0.105 R)
• M15: 14,525,804 km (0.092 R)
• M16: 15,043,263 km (0.092 R)
• M17: 16,613,891 km (0.111 R)
• M18: 17,180,119 km (0.111 R)
• M19: 17,700,570 km (0.109 R)
• M20: 18,231,642 km (0.048 R)
• M21: 22,320,002 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.2

Radius: 12.1

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.69 AU - 4.41 AU

Year: 4617 Days

Day: 5.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,110,231 km

• M1: 150,795 km (0.107 R)
• M2: 923,617 km (0.117 R)
• M3: 1,494,932 km (0.088 R)
• M4: 1,889,122 km (0.063 R)
• M5: 2,776,387 km (0.092 R)
• M6: 4,008,774 km (0.112 R)
• M7: 5,337,802 km (0.034 R)
• M8: 6,161,188 km (0.1 R)
• M9: 7,787,018 km (0.09 R)
• M10: 8,234,764 km (0.065 R)
• M11: 10,282,011 km (0.047 R)
• M12: 12,415,426 km (0.115 R)
• M13: 13,220,263 km (0.097 R)
• M14: 13,660,230 km (0.085 R)
• M15: 14,160,635 km (0.119 R)
• M16: 16,565,122 km (0.109 R)
• M17: 18,675,649 km (0.104 R)
• M18: 20,959,709 km (0.069 R)
• M19: 21,964,259 km (0.099 R)
• M20: 23,141,295 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.3

Radius: 14.9

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.77 AU - 5.93 AU

Year: 7373 Days

Day: 13.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,110,231 km

• M1: 185,352 km (0.088 R)
• M2: 1,002,306 km (0.097 R)
• M3: 2,147,926 km (0.109 R)
• M4: 3,355,630 km (0.108 R)
• M5: 4,152,986 km (0.092 R)
• M6: 4,653,840 km (0.069 R)
• M7: 5,752,188 km (0.094 R)
• M8: 6,519,026 km (0.068 R)
• M9: 9,491,237 km (0.092 R)
• M10: 10,171,907 km (0.094 R)
• M11: 10,763,866 km (0.075 R)
• M12: 11,930,580 km (0.089 R)
• M13: 13,180,021 km (0.067 R)
• M14: 16,630,346 km (0.055 R)
• M15: 20,209,176 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.5

Radius: 9.9

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.12 AU - 6.44 AU

Year: 8375 Days

Day: 9.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,110,231 km

• M1: 123,119 km (0.11 R)
• M2: 587,920 km (0.064 R)
• M3: 1,001,109 km (0.106 R)
• M4: 1,393,654 km (0.089 R)
• M5: 2,117,857 km (0.072 R)
• M6: 3,119,864 km (0.117 R)
• M7: 3,614,434 km (0.108 R)
• M8: 6,684,332 km (0.113 R)
• M9: 7,186,831 km (0.094 R)
• M10: 7,839,676 km (0.079 R)
• M11: 10,853,026 km (0.047 R)
• M12: 13,872,959 km (0.097 R)
• M13: 16,563,327 km (0.095 R)
• M14: 20,774,656 km (0.069 R)
• M15: 21,929,402 km (0.114 R)
• M16: 24,456,559 km (0.104 R)
• M17: 25,278,749 km (0.064 R)
• M18: 26,498,869 km (0.116 R)
• M19: 32,532,750 km (0.111 R)
• M20: 32,972,268 km (0.107 R)
• M21: 34,314,311 km (0.039 R)
• M22: 41,963,549 km (0.03 R)
• M23: 44,881,605 km (0.034 R)
• M24: 45,837,685 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.6

Radius: 3.6

Gravity: 38.32 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.46 AU - 6.96 AU

Year: 10682 Days

Day: 20.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,110,231 km

• M1: 44,730 km (0.106 R)
• M2: 302,636 km (0.086 R)
• M3: 426,354 km (0.093 R)
• M4: 747,092 km (0.101 R)
• M5: 1,795,922 km (0.107 R)
• M6: 2,072,828 km (0.109 R)
• M7: 3,519,888 km (0.113 R)
• M8: 3,796,046 km (0.097 R)
• M9: 6,256,482 km (0.092 R)
• M10: 7,523,427 km (0.096 R)
• M11: 8,023,831 km (0.101 R)
• M12: 8,457,366 km (0.087 R)
• M13: 8,952,086 km (0.118 R)
• M14: 14,178,737 km (0.062 R)
• M15: 15,595,428 km (0.117 R)
• M16: 25,469,486 km (0.089 R)
• M17: 25,933,389 km (0.115 R)
• M18: 28,936,417 km (0.111 R)
• M19: 32,378,963 km (0.105 R)
• M20: 33,584,572 km (0.08 R)
• M21: 40,690,770 km (0.103 R)
• M22: 41,579,980 km (0.103 R)
• M23: 41,836,241 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.8

Radius: 7.3

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 8.86 AU - 10.08 AU

Year: 20116 Days

Day: 20.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,110,231 km

• M1: 90,806 km (0.112 R)
• M2: 458,667 km (0.072 R)
• M3: 2,618,262 km (0.1 R)
• M4: 2,914,017 km (0.03 R)
• M5: 3,232,062 km (0.094 R)
• M6: 6,589,188 km (0.081 R)
• M7: 7,182,044 km (0.074 R)
• M8: 9,021,799 km (0.115 R)
• M9: 11,213,707 km (0.082 R)
• M10: 11,996,403 km (0.087 R)
• M11: 13,074,256 km (0.12 R)
• M12: 14,077,758 km (0.072 R)
• M13: 15,203,632 km (0.109 R)
• M14: 15,714,658 km (0.076 R)
• M15: 21,654,591 km (0.081 R)
• M16: 26,665,970 km (0.112 R)
• M17: 35,233,739 km (0.094 R)
• M18: 39,038,163 km (0.101 R)
• M19: 53,740,193 km (0.052 R)
• M20: 56,126,728 km (0.063 R)
• M21: 60,744,814 km (0.105 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 11,007 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit