🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.46 AU - 0.66 AU

Year: 271 Days

Day: 40.1 Hours

Environment

Temp: -123 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,854,186 km

• M1: 311,762 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.7

Radius: 13.1

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.69 AU - 1.15 AU

Year: 570 Days

Day: 14.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,854,186 km

• M1: 162,912 km (0.107 R)
• M2: 646,562 km (0.092 R)
• M3: 1,179,430 km (0.09 R)
• M4: 1,594,564 km (0.101 R)
• M5: 2,029,445 km (0.063 R)
• M6: 2,648,182 km (0.084 R)
• M7: 3,356,527 km (0.071 R)
• M8: 3,867,404 km (0.085 R)
• M9: 4,738,662 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.6

Radius: 13.7

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.78 AU - 1.24 AU

Year: 655 Days

Day: 13.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,854,186 km

• M1: 170,392 km (0.066 R)
• M2: 731,534 km (0.108 R)
• M3: 1,377,946 km (0.075 R)
• M4: 1,873,265 km (0.105 R)
• M5: 2,779,977 km (0.069 R)
• M6: 3,274,997 km (0.116 R)
• M7: 3,962,249 km (0.117 R)
• M8: 4,626,165 km (0.107 R)
• M9: 5,645,375 km (0.078 R)
• M10: 6,744,171 km (0.117 R)
• M11: 8,679,369 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.3

Radius: 14.1

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.43 AU - 2.79 AU

Year: 2723 Days

Day: 11.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,854,186 km

• M1: 175,927 km (0.114 R)
• M2: 772,224 km (0.081 R)
• M3: 1,336,807 km (0.111 R)
• M4: 1,952,551 km (0.105 R)
• M5: 2,514,890 km (0.118 R)
• M6: 3,266,170 km (0.075 R)
• M7: 3,841,075 km (0.101 R)
• M8: 4,972,334 km (0.118 R)
• M9: 5,544,695 km (0.115 R)
• M10: 6,186,321 km (0.097 R)
• M11: 6,877,164 km (0.036 R)
• M12: 7,589,698 km (0.064 R)
• M13: 8,701,659 km (0.03 R)
• M14: 9,398,935 km (0.082 R)
• M15: 10,867,687 km (0.098 R)
• M16: 12,734,369 km (0.052 R)
• M17: 15,086,347 km (0.119 R)
• M18: 16,143,106 km (0.042 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 460.4

Radius: 3.8

Gravity: 31.88 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.27 AU - 7.49 AU

Year: 11652 Days

Day: 20.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 59,854,186 km

• M1: 49,218 km (0.079 R)
• M2: 300,393 km (0.116 R)
• M3: 562,338 km (0.082 R)
• M4: 681,269 km (0.061 R)
• M5: 817,403 km (0.098 R)
• M6: 1,099,993 km (0.088 R)
• M7: 1,352,066 km (0.098 R)
• M8: 1,554,920 km (0.11 R)
• M9: 1,793,379 km (0.039 R)
• M10: 2,823,510 km (0.038 R)
• M11: 2,953,361 km (0.107 R)
• M12: 3,201,694 km (0.075 R)
• M13: 4,030,615 km (0.04 R)
• M14: 6,064,398 km (0.094 R)
• M15: 7,040,375 km (0.048 R)
• M16: 7,239,490 km (0.103 R)
• M17: 8,335,593 km (0.092 R)
• M18: 9,393,400 km (0.113 R)
• M19: 11,009,655 km (0.117 R)
• M20: 11,550,452 km (0.083 R)
• M21: 13,521,703 km (0.05 R)
• M22: 14,141,636 km (0.108 R)
• M23: 18,944,326 km (0.068 R)
• M24: 27,575,376 km (0.095 R)
• M25: 28,469,672 km (0.107 R)
• M26: 31,161,685 km (0.051 R)
• M27: 31,590,433 km (0.069 R)
• M28: 31,806,153 km (0.03 R)
• M29: 34,931,552 km (0.096 R)
• M30: 36,449,820 km (0.116 R)
• M31: 40,373,174 km (0.109 R)
• M32: 42,044,182 km (0.036 R)
• M33: 42,174,632 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 843

Radius: 3

Gravity: 93.67 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.28 AU - 8.2 AU

Year: 12578 Days

Day: 22.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,854,186 km

• M1: 38,147 km (0.117 R)
• M2: 159,771 km (0.081 R)
• M3: 296,353 km (0.086 R)
• M4: 397,930 km (0.106 R)
• M5: 823,536 km (0.086 R)
• M6: 1,064,538 km (0.115 R)
• M7: 1,604,437 km (0.052 R)
• M8: 2,668,527 km (0.107 R)
• M9: 4,500,802 km (0.082 R)
• M10: 4,893,346 km (0.056 R)
• M11: 5,974,341 km (0.114 R)
• M12: 6,777,382 km (0.106 R)
• M13: 8,112,992 km (0.056 R)
• M14: 10,318,663 km (0.099 R)
• M15: 14,155,848 km (0.065 R)
• M16: 19,012,094 km (0.097 R)
• M17: 28,972,919 km (0.107 R)
• M18: 32,418,756 km (0.114 R)
• M19: 35,238,377 km (0.073 R)
• M20: 35,491,048 km (0.117 R)
• M21: 36,902,204 km (0.063 R)
• M22: 37,687,444 km (0.111 R)
• M23: 52,959,441 km (0.092 R)
• M24: 54,461,853 km (0.06 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 14,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit