🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.62 AU - 0.64 AU

Year: 318 Days

Day: 45.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,086,978 km

• M1: 343,178 km (0.099 R)
• M2: 413,489 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.8

Radius: 14.2

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.7 AU - 0.94 AU

Year: 472 Days

Day: 10.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 172.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,086,978 km

• M1: 183,856 km (0.086 R)
• M2: 1,205,160 km (0.119 R)
• M3: 1,684,322 km (0.064 R)
• M4: 2,219,584 km (0.098 R)
• M5: 2,715,949 km (0.099 R)
• M6: 3,170,727 km (0.103 R)
• M7: 4,173,033 km (0.034 R)
• M8: 4,632,298 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.5

Radius: 11.4

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.98 AU - 1.14 AU

Year: 694 Days

Day: 6.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,086,978 km

• M1: 141,968 km (0.084 R)
• M2: 600,486 km (0.098 R)
• M3: 964,457 km (0.096 R)
• M4: 1,580,502 km (0.117 R)
• M5: 2,086,142 km (0.086 R)
• M6: 2,968,471 km (0.086 R)
• M7: 3,402,304 km (0.115 R)
• M8: 4,139,971 km (0.116 R)
• M9: 4,592,505 km (0.086 R)
• M10: 5,094,107 km (0.059 R)
• M11: 5,737,228 km (0.12 R)
• M12: 6,548,497 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.1

Radius: 12

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.05 AU - 1.45 AU

Year: 889 Days

Day: 11.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,086,978 km

• M1: 151,842 km (0.095 R)
• M2: 547,379 km (0.077 R)
• M3: 1,137,393 km (0.066 R)
• M4: 1,602,792 km (0.035 R)
• M5: 2,389,826 km (0.104 R)
• M6: 2,878,712 km (0.057 R)
• M7: 3,292,200 km (0.107 R)
• M8: 3,776,000 km (0.051 R)
• M9: 5,073,761 km (0.045 R)
• M10: 5,950,405 km (0.071 R)
• M11: 6,925,185 km (0.037 R)
• M12: 7,377,868 km (0.087 R)
• M13: 8,158,918 km (0.116 R)
• M14: 9,304,090 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.4

Radius: 8.5

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.11 AU - 1.79 AU

Year: 1110 Days

Day: 12.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,086,978 km

• M1: 105,766 km (0.095 R)
• M2: 499,956 km (0.092 R)
• M3: 889,958 km (0.111 R)
• M4: 2,927,331 km (0.114 R)
• M5: 3,630,890 km (0.081 R)
• M6: 4,426,302 km (0.066 R)
• M7: 5,277,663 km (0.101 R)
• M8: 5,870,220 km (0.065 R)
• M9: 6,613,273 km (0.07 R)
• M10: 8,160,863 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.9

Radius: 12.5

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.83 AU - 2.47 AU

Year: 2004 Days

Day: 13.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,086,978 km

• M1: 156,180 km (0.113 R)
• M2: 784,641 km (0.083 R)
• M3: 1,234,482 km (0.108 R)
• M4: 1,805,646 km (0.095 R)
• M5: 2,222,276 km (0.077 R)
• M6: 2,834,730 km (0.115 R)
• M7: 3,716,161 km (0.074 R)
• M8: 4,339,834 km (0.117 R)
• M9: 5,054,463 km (0.045 R)
• M10: 6,195,596 km (0.111 R)
• M11: 6,665,333 km (0.062 R)
• M12: 7,617,972 km (0.085 R)
• M13: 8,127,353 km (0.072 R)
• M14: 8,820,141 km (0.074 R)
• M15: 9,586,232 km (0.093 R)
• M16: 10,324,048 km (0.115 R)
• M17: 11,794,296 km (0.091 R)
• M18: 12,192,825 km (0.093 R)
• M19: 15,334,081 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.8

Radius: 14.7

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.68 AU - 2.7 AU

Year: 2805 Days

Day: 14.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,086,978 km

• M1: 182,809 km (0.048 R)
• M2: 773,571 km (0.047 R)
• M3: 1,474,586 km (0.067 R)
• M4: 1,972,598 km (0.065 R)
• M5: 3,250,762 km (0.116 R)
• M6: 3,809,659 km (0.11 R)
• M7: 4,542,839 km (0.034 R)
• M8: 6,348,485 km (0.086 R)
• M9: 7,729,722 km (0.102 R)
• M10: 8,733,224 km (0.072 R)
• M11: 10,282,161 km (0.116 R)
• M12: 12,357,083 km (0.1 R)
• M13: 12,985,095 km (0.101 R)
• M14: 14,599,406 km (0.074 R)
• M15: 16,184,844 km (0.114 R)
• M16: 17,825,783 km (0.094 R)
• M17: 19,038,723 km (0.062 R)
• M18: 19,515,042 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.8

Radius: 14.4

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.81 AU - 5.83 AU

Year: 7802 Days

Day: 5.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,086,978 km

• M1: 182,210 km (0.059 R)
• M2: 677,828 km (0.083 R)
• M3: 1,128,267 km (0.112 R)
• M4: 1,616,255 km (0.076 R)
• M5: 2,134,612 km (0.085 R)
• M6: 3,845,264 km (0.037 R)
• M7: 4,619,283 km (0.087 R)
• M8: 5,102,783 km (0.107 R)
• M9: 6,206,068 km (0.118 R)
• M10: 6,868,637 km (0.091 R)
• M11: 8,670,244 km (0.061 R)
• M12: 9,911,009 km (0.106 R)
• M13: 12,095,736 km (0.114 R)
• M14: 12,909,249 km (0.11 R)
• M15: 14,345,837 km (0.103 R)
• M16: 15,319,720 km (0.119 R)
• M17: 16,598,632 km (0.091 R)
• M18: 18,934,453 km (0.104 R)
• M19: 22,033,522 km (0.049 R)
• M20: 23,661,746 km (0.075 R)
• M21: 24,848,356 km (0.079 R)
• M22: 25,896,738 km (0.066 R)
• M23: 28,551,950 km (0.066 R)
• M24: 30,882,835 km (0.115 R)
• M25: 31,890,526 km (0.099 R)
• M26: 32,920,059 km (0.118 R)
• M27: 34,505,796 km (0.099 R)
• M28: 36,475,252 km (0.102 R)
• M29: 38,172,739 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.8

Radius: 4.6

Gravity: 24 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 9.83 AU - 12.19 AU

Year: 23228 Days

Day: 22.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 76,086,978 km

• M1: 202,107 km (0.082 R)
• M2: 751,281 km (0.094 R)
• M3: 1,303,147 km (0.105 R)
• M4: 1,520,662 km (0.03 R)
• M5: 1,892,413 km (0.096 R)
• M6: 2,257,133 km (0.109 R)
• M7: 2,411,069 km (0.116 R)
• M8: 5,650,012 km (0.078 R)
• M9: 6,144,433 km (0.111 R)
• M10: 7,031,698 km (0.115 R)
• M11: 9,503,953 km (0.03 R)
• M12: 10,996,191 km (0.112 R)
• M13: 11,312,292 km (0.071 R)
• M14: 12,775,808 km (0.085 R)
• M15: 13,195,879 km (0.099 R)
• M16: 14,435,895 km (0.11 R)
• M17: 14,586,690 km (0.05 R)
• M18: 15,356,670 km (0.117 R)
• M19: 15,911,529 km (0.069 R)
• M20: 16,727,136 km (0.05 R)
• M21: 18,177,188 km (0.114 R)
• M22: 19,987,921 km (0.07 R)
• M23: 23,858,018 km (0.102 R)
• M24: 24,709,379 km (0.067 R)
• M25: 29,150,491 km (0.085 R)
• M26: 29,391,643 km (0.053 R)
• M27: 32,004,071 km (0.057 R)
• M28: 33,564,377 km (0.025 R)
• M29: 35,998,633 km (0.095 R)
• M30: 39,277,071 km (0.087 R)
• M31: 41,977,611 km (0.057 R)
• M32: 44,479,636 km (0.09 R)
• M33: 45,443,046 km (0.119 R)
• M34: 47,245,102 km (0.095 R)
• M35: 47,744,759 km (0.105 R)
• M36: 51,869,322 km (0.117 R)
• M37: 52,046,146 km (0.097 R)
• M38: 57,540,128 km (0.098 R)
• M39: 58,875,439 km (0.09 R)
• M40: 61,806,061 km (0.094 R)
• M41: 73,382,692 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 16,766 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit