🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.54 AU - 0.6 AU

Year: 282 Days

Day: 41.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.6

Radius: 13.5

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.89 AU - 0.91 AU

Year: 560 Days

Day: 5 Hours

Environment

Temp: -162 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,786,302 km

• M1: 167,849 km (0.112 R)
• M2: 711,039 km (0.105 R)
• M3: 1,184,666 km (0.095 R)
• M4: 1,770,640 km (0.096 R)
• M5: 2,726,122 km (0.095 R)
• M6: 3,158,310 km (0.115 R)
• M7: 3,777,346 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.3

Radius: 12.4

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.95 AU - 1.27 AU

Year: 767 Days

Day: 5.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,786,302 km

• M1: 154,235 km (0.118 R)
• M2: 541,395 km (0.026 R)
• M3: 1,227,899 km (0.108 R)
• M4: 1,891,515 km (0.09 R)
• M5: 2,375,315 km (0.106 R)
• M6: 2,773,844 km (0.055 R)
• M7: 3,206,032 km (0.097 R)
• M8: 4,126,059 km (0.107 R)
• M9: 4,677,925 km (0.114 R)
• M10: 5,246,697 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.9

Radius: 14.3

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.33 AU - 1.33 AU

Year: 1006 Days

Day: 12.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,786,302 km

• M1: 178,171 km (0.099 R)
• M2: 677,529 km (0.05 R)
• M3: 1,219,372 km (0.106 R)
• M4: 1,798,017 km (0.112 R)
• M5: 3,040,876 km (0.092 R)
• M6: 4,606,268 km (0.115 R)
• M7: 6,290,291 km (0.073 R)
• M8: 7,249,064 km (0.086 R)
• M9: 7,776,097 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.9

Radius: 10.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.35 AU - 3.59 AU

Year: 4240 Days

Day: 5.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,786,302 km

• M1: 135,087 km (0.093 R)
• M2: 481,705 km (0.103 R)
• M3: 1,294,470 km (0.116 R)
• M4: 1,755,681 km (0.072 R)
• M5: 4,014,908 km (0.11 R)
• M6: 5,031,126 km (0.108 R)
• M7: 5,574,017 km (0.095 R)
• M8: 6,924,437 km (0.063 R)
• M9: 7,378,466 km (0.036 R)
• M10: 7,982,094 km (0.114 R)
• M11: 12,582,976 km (0.11 R)
• M12: 18,585,740 km (0.11 R)
• M13: 20,126,000 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.5

Radius: 9.5

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.53 AU - 3.77 AU

Year: 4575 Days

Day: 14.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 24,786,302 km

• M1: 120,277 km (0.074 R)
• M2: 488,736 km (0.107 R)
• M3: 1,105,379 km (0.095 R)
• M4: 1,554,471 km (0.118 R)
• M5: 2,319,814 km (0.116 R)
• M6: 2,752,451 km (0.085 R)
• M7: 3,101,912 km (0.065 R)
• M8: 3,650,038 km (0.067 R)
• M9: 3,981,547 km (0.097 R)
• M10: 4,333,402 km (0.073 R)
• M11: 4,757,063 km (0.088 R)
• M12: 5,658,839 km (0.068 R)
• M13: 6,509,751 km (0.111 R)
• M14: 7,584,163 km (0.078 R)
• M15: 8,733,823 km (0.055 R)
• M16: 12,038,141 km (0.114 R)
• M17: 12,776,855 km (0.096 R)
• M18: 13,755,524 km (0.115 R)
• M19: 14,672,709 km (0.096 R)
• M20: 20,494,459 km (0.119 R)
• M21: 22,268,391 km (0.057 R)
• M22: 24,999,450 km (0.053 R)
• M23: 26,939,585 km (0.098 R)
• M24: 28,459,050 km (0.062 R)
• M25: 29,239,801 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139

Radius: 12

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.22 AU - 5.6 AU

Year: 8255 Days

Day: 6.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 24,786,302 km

• M1: 152,440 km (0.093 R)
• M2: 788,231 km (0.112 R)
• M3: 1,178,682 km (0.088 R)
• M4: 1,761,814 km (0.084 R)
• M5: 2,642,347 km (0.064 R)
• M6: 3,101,313 km (0.118 R)
• M7: 4,857,443 km (0.103 R)
• M8: 5,391,358 km (0.088 R)
• M9: 5,824,294 km (0.088 R)
• M10: 7,525,970 km (0.095 R)
• M11: 8,708,840 km (0.069 R)
• M12: 9,772,930 km (0.04 R)
• M13: 10,295,475 km (0.092 R)
• M14: 11,049,897 km (0.088 R)
• M15: 14,134,755 km (0.062 R)
• M16: 14,595,815 km (0.106 R)
• M17: 16,094,637 km (0.087 R)
• M18: 16,597,585 km (0.082 R)
• M19: 18,471,298 km (0.112 R)
• M20: 19,084,649 km (0.109 R)
• M21: 20,940,710 km (0.081 R)
• M22: 22,426,815 km (0.087 R)
• M23: 23,694,208 km (0.062 R)
• M24: 24,418,561 km (0.055 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 17,354 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit