🌌 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: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.44 AU - 0.7 AU

Year: 282 Days

Day: 41.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 8.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.6

Radius: 14.6

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.61 AU - 0.75 AU

Year: 368 Days

Day: 9.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,873,827 km

• M1: 181,612 km (0.109 R)
• M2: 713,283 km (0.093 R)
• M3: 1,196,783 km (0.093 R)
• M4: 1,808,040 km (0.087 R)
• M5: 2,301,713 km (0.093 R)
• M6: 2,812,590 km (0.067 R)
• M7: 3,515,999 km (0.1 R)
• M8: 4,115,886 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.7

Radius: 9.7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.55 AU - 0.83 AU

Year: 376 Days

Day: 11.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,873,827 km

• M1: 120,725 km (0.12 R)
• M2: 508,782 km (0.099 R)
• M3: 818,001 km (0.07 R)
• M4: 1,475,185 km (0.113 R)
• M5: 1,778,419 km (0.111 R)
• M6: 2,243,220 km (0.105 R)
• M7: 2,639,056 km (0.082 R)
• M8: 3,122,257 km (0.092 R)
• M9: 3,428,933 km (0.107 R)
• M10: 4,278,948 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569

Radius: 13.5

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.55 AU - 0.85 AU

Year: 384 Days

Day: 7.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,873,827 km

• M1: 167,849 km (0.097 R)
• M2: 611,107 km (0.054 R)
• M3: 1,091,765 km (0.066 R)
• M4: 1,530,685 km (0.099 R)
• M5: 2,082,552 km (0.08 R)
• M6: 2,670,771 km (0.114 R)
• M7: 3,119,714 km (0.055 R)
• M8: 3,561,177 km (0.115 R)
• M9: 4,019,545 km (0.085 R)
• M10: 4,753,173 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330

Radius: 8.3

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.13 AU - 4.35 AU

Year: 4745 Days

Day: 6.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,873,827 km

• M1: 107,411 km (0.068 R)
• M2: 369,357 km (0.038 R)
• M3: 717,621 km (0.102 R)
• M4: 1,648,718 km (0.116 R)
• M5: 2,028,398 km (0.087 R)
• M6: 2,683,187 km (0.102 R)
• M7: 3,086,354 km (0.067 R)
• M8: 3,529,463 km (0.077 R)
• M9: 4,229,281 km (0.084 R)
• M10: 4,848,317 km (0.065 R)
• M11: 5,605,582 km (0.108 R)
• M12: 6,040,463 km (0.045 R)
• M13: 8,179,114 km (0.089 R)
• M14: 8,490,876 km (0.096 R)
• M15: 9,324,286 km (0.115 R)
• M16: 9,896,498 km (0.108 R)
• M17: 10,943,533 km (0.04 R)
• M18: 13,020,699 km (0.104 R)
• M19: 13,784,097 km (0.083 R)
• M20: 15,876,373 km (0.088 R)
• M21: 19,367,838 km (0.101 R)
• M22: 19,860,763 km (0.09 R)
• M23: 20,425,196 km (0.116 R)
• M24: 21,064,876 km (0.118 R)
• M25: 21,849,966 km (0.073 R)
• M26: 22,451,648 km (0.078 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 649.9

Radius: 4.8

Gravity: 28.21 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 6.09 AU - 6.93 AU

Year: 10896 Days

Day: 19.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 49,873,827 km

• M1: 63,729 km (0.06 R)
• M2: 217,964 km (0.072 R)
• M3: 541,095 km (0.038 R)
• M4: 856,897 km (0.095 R)
• M5: 1,287,290 km (0.051 R)
• M6: 1,473,090 km (0.106 R)
• M7: 2,269,549 km (0.067 R)
• M8: 3,594,388 km (0.074 R)
• M9: 4,332,055 km (0.09 R)
• M10: 5,198,676 km (0.03 R)
• M11: 5,992,292 km (0.111 R)
• M12: 6,361,500 km (0.091 R)
• M13: 8,714,525 km (0.063 R)
• M14: 9,779,063 km (0.102 R)
• M15: 10,290,538 km (0.112 R)
• M16: 11,422,246 km (0.099 R)
• M17: 13,551,323 km (0.101 R)
• M18: 14,251,292 km (0.097 R)
• M19: 16,424,051 km (0.113 R)
• M20: 16,782,488 km (0.086 R)
• M21: 18,191,699 km (0.118 R)
• M22: 18,730,252 km (0.098 R)
• M23: 19,042,762 km (0.099 R)
• M24: 19,358,712 km (0.095 R)
• M25: 21,498,112 km (0.057 R)
• M26: 21,668,952 km (0.073 R)
• M27: 24,433,970 km (0.074 R)
• M28: 25,756,265 km (0.102 R)
• M29: 27,626,239 km (0.039 R)
• M30: 29,479,457 km (0.115 R)
• M31: 30,436,435 km (0.048 R)
• M32: 33,891,098 km (0.071 R)
• M33: 35,058,859 km (0.115 R)
• M34: 43,994,490 km (0.032 R)
• M35: 47,231,937 km (0.098 R)
• M36: 47,665,622 km (0.11 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: 541 - 11,908 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit