🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.57 AU - 0.77 AU

Year: 349 Days

Day: 38.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,487,536 km

• M1: 90,208 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.2

Radius: 11.8

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.76 AU - 1.2 AU

Year: 617 Days

Day: 9.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,487,536 km

• M1: 146,756 km (0.101 R)
• M2: 741,257 km (0.051 R)
• M3: 1,188,705 km (0.072 R)
• M4: 1,801,308 km (0.035 R)
• M5: 2,200,734 km (0.114 R)
• M6: 2,659,850 km (0.093 R)
• M7: 3,219,795 km (0.118 R)
• M8: 4,530,272 km (0.114 R)
• M9: 6,110,026 km (0.093 R)
• M10: 6,710,661 km (0.054 R)
• M11: 7,111,135 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.4

Radius: 8.6

Gravity: 11.32 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.66 AU - 2.08 AU

Year: 1626 Days

Day: 10.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,487,536 km

• M1: 106,962 km (0.077 R)
• M2: 379,679 km (0.086 R)
• M3: 697,575 km (0.066 R)
• M4: 985,700 km (0.098 R)
• M5: 1,497,774 km (0.118 R)
• M6: 1,815,221 km (0.057 R)
• M7: 2,141,793 km (0.117 R)
• M8: 2,670,920 km (0.042 R)
• M9: 3,737,703 km (0.109 R)
• M10: 4,605,819 km (0.102 R)
• M11: 5,109,066 km (0.115 R)
• M12: 7,055,335 km (0.064 R)
• M13: 8,374,788 km (0.115 R)
• M14: 9,417,635 km (0.119 R)
• M15: 9,851,469 km (0.105 R)
• M16: 11,049,149 km (0.054 R)
• M17: 12,184,148 km (0.116 R)
• M18: 13,311,817 km (0.119 R)
• M19: 14,463,870 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703

Radius: 15

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.79 AU - 2.97 AU

Year: 2335 Days

Day: 6 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,487,536 km

• M1: 186,549 km (0.055 R)
• M2: 748,289 km (0.106 R)
• M3: 1,473,988 km (0.058 R)
• M4: 1,941,182 km (0.079 R)
• M5: 2,427,525 km (0.105 R)
• M6: 2,949,472 km (0.094 R)
• M7: 3,441,798 km (0.076 R)
• M8: 3,913,032 km (0.099 R)
• M9: 6,463,675 km (0.118 R)
• M10: 6,930,720 km (0.075 R)
• M11: 7,420,503 km (0.103 R)
• M12: 9,098,542 km (0.08 R)
• M13: 11,929,981 km (0.117 R)
• M14: 12,425,450 km (0.057 R)
• M15: 14,828,291 km (0.083 R)
• M16: 15,401,849 km (0.081 R)
• M17: 17,685,610 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 193.3

Radius: 12

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.99 AU - 3.47 AU

Year: 3691 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,487,536 km

• M1: 149,299 km (0.115 R)
• M2: 622,178 km (0.109 R)
• M3: 1,078,301 km (0.062 R)
• M4: 1,609,823 km (0.056 R)
• M5: 2,152,713 km (0.109 R)
• M6: 2,979,092 km (0.095 R)
• M7: 3,969,131 km (0.097 R)
• M8: 4,905,464 km (0.095 R)
• M9: 5,576,410 km (0.091 R)
• M10: 6,106,735 km (0.116 R)
• M11: 6,803,412 km (0.11 R)
• M12: 7,581,171 km (0.105 R)
• M13: 9,513,976 km (0.082 R)
• M14: 9,957,683 km (0.092 R)
• M15: 10,667,375 km (0.107 R)
• M16: 11,486,573 km (0.055 R)
• M17: 12,148,095 km (0.084 R)
• M18: 13,461,864 km (0.078 R)
• M19: 14,153,305 km (0.077 R)
• M20: 15,004,966 km (0.099 R)
• M21: 15,466,774 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.1

Radius: 10.7

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.83 AU - 4.07 AU

Year: 4991 Days

Day: 8.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 29,487,536 km

• M1: 133,142 km (0.028 R)
• M2: 523,892 km (0.115 R)
• M3: 871,408 km (0.034 R)
• M4: 1,834,519 km (0.103 R)
• M5: 2,402,392 km (0.112 R)
• M6: 2,737,342 km (0.112 R)
• M7: 3,629,095 km (0.093 R)
• M8: 4,260,547 km (0.106 R)
• M9: 4,963,807 km (0.077 R)
• M10: 5,343,636 km (0.06 R)
• M11: 7,027,958 km (0.068 R)
• M12: 7,473,012 km (0.102 R)
• M13: 8,572,407 km (0.065 R)
• M14: 9,734,333 km (0.114 R)
• M15: 11,365,698 km (0.095 R)
• M16: 12,616,336 km (0.119 R)
• M17: 13,172,242 km (0.12 R)
• M18: 13,850,070 km (0.034 R)
• M19: 14,387,276 km (0.113 R)
• M20: 16,318,136 km (0.028 R)
• M21: 18,674,153 km (0.083 R)
• M22: 21,107,362 km (0.108 R)
• M23: 21,461,161 km (0.089 R)
• M24: 23,215,346 km (0.12 R)
• M25: 23,973,807 km (0.101 R)
• M26: 25,460,211 km (0.041 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 462 - 20,025 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit