🌌 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 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.52 AU - 0.8 AU

Year: 352 Days

Day: 17.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 20.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,161,250 km

• M1: 30,668 km (0.081 R)
• M2: 160,967 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.9

Radius: 13.6

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.67 AU - 0.99 AU

Year: 496 Days

Day: 10 Hours

Environment

Temp: -154 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 84,161,250 km

• M1: 174,431 km (0.045 R)
• M2: 597,344 km (0.088 R)
• M3: 1,034,619 km (0.104 R)
• M4: 1,647,372 km (0.078 R)
• M5: 2,256,983 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.1

Radius: 13.9

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.59 AU - 1.61 AU

Year: 1328 Days

Day: 13.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,161,250 km

• M1: 172,935 km (0.098 R)
• M2: 997,219 km (0.05 R)
• M3: 1,580,950 km (0.113 R)
• M4: 2,137,006 km (0.106 R)
• M5: 3,405,895 km (0.111 R)
• M6: 4,280,593 km (0.116 R)
• M7: 4,798,501 km (0.084 R)
• M8: 5,940,681 km (0.076 R)
• M9: 7,185,485 km (0.039 R)
• M10: 7,996,605 km (0.098 R)
• M11: 9,256,667 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.3

Radius: 12.8

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.43 AU - 2.07 AU

Year: 1519 Days

Day: 13.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,161,250 km

• M1: 159,172 km (0.112 R)
• M2: 581,188 km (0.109 R)
• M3: 1,501,514 km (0.041 R)
• M4: 2,242,921 km (0.062 R)
• M5: 2,757,687 km (0.069 R)
• M6: 3,350,992 km (0.072 R)
• M7: 4,132,192 km (0.08 R)
• M8: 4,853,404 km (0.054 R)
• M9: 5,255,074 km (0.07 R)
• M10: 5,944,122 km (0.067 R)
• M11: 7,243,230 km (0.084 R)
• M12: 7,769,665 km (0.027 R)
• M13: 8,929,198 km (0.087 R)
• M14: 9,690,950 km (0.081 R)
• M15: 10,695,201 km (0.12 R)
• M16: 12,274,954 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.8

Radius: 11.8

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.34 AU - 2.6 AU

Year: 2547 Days

Day: 12 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,161,250 km

• M1: 157,377 km (0.098 R)
• M2: 525,238 km (0.113 R)
• M3: 905,366 km (0.063 R)
• M4: 1,296,266 km (0.087 R)
• M5: 1,884,933 km (0.067 R)
• M6: 2,401,046 km (0.105 R)
• M7: 3,220,393 km (0.107 R)
• M8: 3,603,514 km (0.11 R)
• M9: 4,071,156 km (0.054 R)
• M10: 4,618,385 km (0.118 R)
• M11: 5,235,776 km (0.054 R)
• M12: 5,884,283 km (0.093 R)
• M13: 6,814,333 km (0.095 R)
• M14: 7,982,094 km (0.087 R)
• M15: 9,058,600 km (0.105 R)
• M16: 9,470,443 km (0.095 R)
• M17: 10,572,082 km (0.069 R)
• M18: 12,401,514 km (0.072 R)
• M19: 13,885,076 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.4

Radius: 12.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.48 AU - 3.78 AU

Year: 3633 Days

Day: 10.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,161,250 km

• M1: 154,834 km (0.103 R)
• M2: 698,472 km (0.114 R)
• M3: 1,139,936 km (0.105 R)
• M4: 1,554,920 km (0.105 R)
• M5: 2,030,492 km (0.078 R)
• M6: 2,480,333 km (0.084 R)
• M7: 3,151,130 km (0.101 R)
• M8: 4,933,289 km (0.093 R)
• M9: 8,048,665 km (0.089 R)
• M10: 9,520,109 km (0.113 R)
• M11: 10,111,918 km (0.116 R)
• M12: 10,860,955 km (0.088 R)
• M13: 11,611,787 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.2

Radius: 8.7

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.3 AU - 3.9 AU

Year: 4481 Days

Day: 9 Hours

Environment

Temp: -212 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,161,250 km

• M1: 108,309 km (0.108 R)
• M2: 420,220 km (0.104 R)
• M3: 706,700 km (0.078 R)
• M4: 1,036,414 km (0.096 R)
• M5: 1,335,759 km (0.108 R)
• M6: 1,764,956 km (0.117 R)
• M7: 2,509,654 km (0.106 R)
• M8: 2,971,163 km (0.1 R)
• M9: 3,259,738 km (0.035 R)
• M10: 4,421,066 km (0.099 R)
• M11: 4,702,160 km (0.106 R)
• M12: 6,005,457 km (0.064 R)
• M13: 6,710,063 km (0.086 R)
• M14: 7,145,841 km (0.118 R)
• M15: 8,248,079 km (0.077 R)
• M16: 11,341,463 km (0.098 R)
• M17: 12,978,513 km (0.106 R)
• M18: 17,632,951 km (0.073 R)
• M19: 20,266,772 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.2

Radius: 6.4

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.96 AU - 7.06 AU

Year: 9665 Days

Day: 21.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,161,250 km

• M1: 85,869 km (0.086 R)
• M2: 509,231 km (0.077 R)
• M3: 747,241 km (0.119 R)
• M4: 1,090,868 km (0.069 R)
• M5: 1,549,086 km (0.101 R)
• M6: 2,684,384 km (0.105 R)
• M7: 2,944,684 km (0.085 R)
• M8: 3,400,808 km (0.106 R)
• M9: 5,358,745 km (0.095 R)
• M10: 7,106,198 km (0.106 R)
• M11: 7,844,613 km (0.103 R)
• M12: 9,382,030 km (0.036 R)
• M13: 9,749,144 km (0.115 R)
• M14: 10,078,259 km (0.113 R)
• M15: 11,942,398 km (0.091 R)
• M16: 12,927,350 km (0.103 R)
• M17: 13,730,093 km (0.115 R)
• M18: 14,810,488 km (0.11 R)
• M19: 16,735,215 km (0.102 R)
• M20: 17,688,003 km (0.067 R)
• M21: 25,129,002 km (0.118 R)
• M22: 31,069,383 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.1

Radius: 5.7

Gravity: 27.58 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 8.97 AU - 10.77 AU

Year: 20342 Days

Day: 17.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 84,161,250 km

• M1: 71,059 km (0.11 R)
• M2: 435,031 km (0.105 R)
• M3: 906,563 km (0.112 R)
• M4: 2,164,532 km (0.097 R)
• M5: 3,092,786 km (0.077 R)
• M6: 4,193,677 km (0.118 R)
• M7: 4,576,648 km (0.101 R)
• M8: 5,493,084 km (0.063 R)
• M9: 6,571,834 km (0.116 R)
• M10: 6,803,412 km (0.105 R)
• M11: 7,733,612 km (0.067 R)
• M12: 8,525,732 km (0.114 R)
• M13: 9,139,981 km (0.111 R)
• M14: 13,092,656 km (0.088 R)
• M15: 15,891,034 km (0.086 R)
• M16: 17,079,140 km (0.081 R)
• M17: 19,064,154 km (0.12 R)
• M18: 20,600,824 km (0.058 R)
• M19: 24,027,363 km (0.094 R)
• M20: 24,467,031 km (0.082 R)
• M21: 30,167,757 km (0.098 R)
• M22: 32,515,396 km (0.12 R)
• M23: 42,004,838 km (0.11 R)
• M24: 42,963,910 km (0.093 R)
• M25: 44,429,670 km (0.042 R)
• M26: 51,168,007 km (0.097 R)
• M27: 53,743,933 km (0.106 R)
• M28: 55,444,711 km (0.101 R)
• M29: 55,635,747 km (0.111 R)
• M30: 56,404,830 km (0.069 R)
• M31: 61,782,275 km (0.091 R)
• M32: 63,021,993 km (0.084 R)
• M33: 65,124,890 km (0.077 R)
• M34: 72,395,795 km (0.082 R)
• M35: 73,312,232 km (0.099 R)
• M36: 74,004,571 km (0.093 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 16,113 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit