🌌 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: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.45 AU - 0.67 AU

Year: 271 Days

Day: 24.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,720,520 km

• M1: 19,298 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.8

Radius: 11.3

Gravity: 7.82 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.69 AU - 0.93 AU

Year: 471 Days

Day: 11.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,720,520 km

• M1: 140,472 km (0.096 R)
• M2: 640,578 km (0.118 R)
• M3: 1,072,766 km (0.107 R)
• M4: 1,488,648 km (0.084 R)
• M5: 2,887,089 km (0.042 R)
• M6: 3,461,844 km (0.098 R)
• M7: 3,859,027 km (0.081 R)
• M8: 4,301,238 km (0.092 R)
• M9: 5,637,446 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.7

Radius: 14.3

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.9 AU - 1.26 AU

Year: 725 Days

Day: 5.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 69.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,720,520 km

• M1: 177,872 km (0.088 R)
• M2: 1,280,259 km (0.088 R)
• M3: 1,891,067 km (0.099 R)
• M4: 3,484,134 km (0.117 R)
• M5: 3,941,904 km (0.115 R)
• M6: 4,997,616 km (0.105 R)
• M7: 5,940,980 km (0.114 R)
• M8: 6,475,942 km (0.104 R)
• M9: 7,305,762 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.6

Radius: 10.5

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.45 AU - 2.11 AU

Year: 1533 Days

Day: 9 Hours

Environment

Temp: -186 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,720,520 km

• M1: 130,898 km (0.117 R)
• M2: 935,435 km (0.094 R)
• M3: 1,313,170 km (0.052 R)
• M4: 1,717,234 km (0.05 R)
• M5: 2,357,962 km (0.104 R)
• M6: 2,769,805 km (0.095 R)
• M7: 3,308,656 km (0.091 R)
• M8: 4,939,572 km (0.082 R)
• M9: 7,094,978 km (0.034 R)
• M10: 8,032,807 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.2

Radius: 11.2

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.76 AU - 4.46 AU

Year: 4429 Days

Day: 7 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,720,520 km

• M1: 139,276 km (0.07 R)
• M2: 554,559 km (0.088 R)
• M3: 976,724 km (0.1 R)
• M4: 1,327,831 km (0.083 R)
• M5: 3,049,553 km (0.054 R)
• M6: 3,421,004 km (0.089 R)
• M7: 4,279,995 km (0.108 R)
• M8: 4,773,369 km (0.068 R)
• M9: 5,415,443 km (0.089 R)
• M10: 5,934,099 km (0.104 R)
• M11: 7,205,830 km (0.088 R)
• M12: 8,574,800 km (0.074 R)
• M13: 9,320,995 km (0.108 R)
• M14: 10,498,928 km (0.057 R)
• M15: 11,307,056 km (0.088 R)
• M16: 12,546,773 km (0.1 R)
• M17: 12,996,465 km (0.118 R)
• M18: 14,034,225 km (0.049 R)
• M19: 16,809,565 km (0.093 R)
• M20: 17,356,345 km (0.05 R)
• M21: 18,485,659 km (0.092 R)
• M22: 19,133,867 km (0.112 R)
• M23: 20,202,444 km (0.115 R)
• M24: 20,682,354 km (0.028 R)
• M25: 22,825,643 km (0.084 R)
• M26: 24,027,213 km (0.109 R)
• M27: 27,716,895 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.5

Radius: 4.4

Gravity: 45.69 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 6.19 AU - 7.79 AU

Year: 11932 Days

Day: 20.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 58,720,520 km

• M1: 59,091 km (0.051 R)
• M2: 219,161 km (0.085 R)
• M3: 379,979 km (0.061 R)
• M4: 605,871 km (0.078 R)
• M5: 1,171,351 km (0.102 R)
• M6: 2,280,021 km (0.088 R)
• M7: 3,273,800 km (0.089 R)
• M8: 3,725,436 km (0.117 R)
• M9: 5,154,993 km (0.103 R)
• M10: 5,329,723 km (0.099 R)
• M11: 5,915,249 km (0.044 R)
• M12: 6,342,052 km (0.079 R)
• M13: 6,706,173 km (0.111 R)
• M14: 7,974,913 km (0.041 R)
• M15: 8,399,172 km (0.113 R)
• M16: 8,838,242 km (0.079 R)
• M17: 9,499,315 km (0.113 R)
• M18: 11,739,543 km (0.114 R)
• M19: 15,943,692 km (0.11 R)
• M20: 18,177,488 km (0.031 R)
• M21: 24,508,619 km (0.111 R)
• M22: 26,011,479 km (0.098 R)
• M23: 26,422,425 km (0.092 R)
• M24: 27,468,563 km (0.081 R)
• M25: 31,579,811 km (0.116 R)
• M26: 33,842,180 km (0.025 R)
• M27: 35,450,806 km (0.042 R)
• M28: 38,288,079 km (0.074 R)
• M29: 43,683,177 km (0.069 R)
• M30: 43,827,838 km (0.063 R)
• M31: 45,439,755 km (0.107 R)
• M32: 49,406,342 km (0.097 R)
• M33: 53,266,865 km (0.079 R)
• M34: 54,933,086 km (0.112 R)
• M35: 56,633,864 km (0.099 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: 470 - 13,460 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit