🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.48 AU - 0.8 AU

Year: 326 Days

Day: 46.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.6

Radius: 14

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.57 AU - 0.89 AU

Year: 397 Days

Day: 11.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,930,224 km

• M1: 174,431 km (0.112 R)
• M2: 674,238 km (0.115 R)
• M3: 1,175,390 km (0.117 R)
• M4: 1,963,622 km (0.118 R)
• M5: 2,438,146 km (0.113 R)
• M6: 2,917,757 km (0.039 R)
• M7: 3,483,686 km (0.111 R)
• M8: 4,443,356 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.7

Radius: 10.1

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.92 AU - 2.06 AU

Year: 1785 Days

Day: 11.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 130.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,930,224 km

• M1: 125,662 km (0.074 R)
• M2: 444,455 km (0.116 R)
• M3: 1,266,496 km (0.115 R)
• M4: 1,618,350 km (0.064 R)
• M5: 2,593,429 km (0.119 R)
• M6: 2,908,781 km (0.096 R)
• M7: 3,497,598 km (0.063 R)
• M8: 3,939,211 km (0.108 R)
• M9: 5,967,160 km (0.11 R)
• M10: 7,082,412 km (0.116 R)
• M11: 8,028,469 km (0.073 R)
• M12: 8,516,607 km (0.103 R)
• M13: 8,992,029 km (0.113 R)
• M14: 10,382,541 km (0.091 R)
• M15: 11,911,132 km (0.099 R)
• M16: 12,914,036 km (0.067 R)
• M17: 13,713,038 km (0.057 R)
• M18: 14,190,555 km (0.104 R)
• M19: 15,087,095 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.6

Radius: 8.7

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.82 AU - 4.36 AU

Year: 4325 Days

Day: 6.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 113.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,930,224 km

• M1: 108,458 km (0.086 R)
• M2: 669,301 km (0.081 R)
• M3: 1,140,385 km (0.1 R)
• M4: 1,451,997 km (0.079 R)
• M5: 2,168,272 km (0.068 R)
• M6: 2,637,560 km (0.115 R)
• M7: 3,173,120 km (0.088 R)
• M8: 3,679,958 km (0.067 R)
• M9: 3,984,090 km (0.114 R)
• M10: 4,415,980 km (0.04 R)
• M11: 5,766,549 km (0.077 R)
• M12: 6,122,293 km (0.075 R)
• M13: 7,373,230 km (0.071 R)
• M14: 8,574,501 km (0.073 R)
• M15: 9,258,612 km (0.12 R)
• M16: 10,940,990 km (0.093 R)
• M17: 13,049,273 km (0.082 R)
• M18: 15,259,132 km (0.071 R)
• M19: 16,155,373 km (0.085 R)
• M20: 16,534,454 km (0.095 R)
• M21: 17,650,155 km (0.03 R)
• M22: 18,696,592 km (0.045 R)
• M23: 22,017,815 km (0.111 R)
• M24: 22,416,942 km (0.033 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.5

Radius: 11.8

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.8 AU - 5.4 AU

Year: 6273 Days

Day: 9.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,930,224 km

• M1: 146,756 km (0.066 R)
• M2: 615,894 km (0.097 R)
• M3: 1,479,673 km (0.097 R)
• M4: 2,231,551 km (0.111 R)
• M5: 2,951,117 km (0.051 R)
• M6: 3,348,000 km (0.083 R)
• M7: 4,166,002 km (0.07 R)
• M8: 5,283,498 km (0.1 R)
• M9: 8,236,709 km (0.084 R)
• M10: 9,065,781 km (0.083 R)
• M11: 13,222,208 km (0.096 R)
• M12: 16,555,697 km (0.072 R)
• M13: 18,909,919 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.2

Radius: 12

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 4.37 AU - 5.11 AU

Year: 6561 Days

Day: 11.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,930,224 km

• M1: 149,299 km (0.051 R)
• M2: 833,111 km (0.114 R)
• M3: 1,484,908 km (0.091 R)
• M4: 1,957,488 km (0.083 R)
• M5: 2,917,607 km (0.09 R)
• M6: 3,527,518 km (0.063 R)
• M7: 5,213,785 km (0.115 R)
• M8: 5,588,079 km (0.084 R)
• M9: 7,079,869 km (0.097 R)
• M10: 7,618,720 km (0.103 R)
• M11: 8,520,646 km (0.036 R)
• M12: 9,769,938 km (0.077 R)
• M13: 12,965,797 km (0.055 R)
• M14: 14,923,734 km (0.111 R)
• M15: 16,333,993 km (0.111 R)
• M16: 19,122,797 km (0.101 R)
• M17: 20,862,769 km (0.106 R)
• M18: 21,972,187 km (0.082 R)
• M19: 33,896,783 km (0.097 R)
• M20: 38,278,804 km (0.048 R)
• M21: 39,103,387 km (0.052 R)
• M22: 39,699,535 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852.7

Radius: 3.1

Gravity: 88.73 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 8.15 AU - 8.39 AU

Year: 15121 Days

Day: 17.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 67,930,224 km

• M1: 38,596 km (0.066 R)
• M2: 258,655 km (0.089 R)
• M3: 475,422 km (0.08 R)
• M4: 1,061,696 km (0.088 R)
• M5: 1,481,468 km (0.027 R)
• M6: 1,677,291 km (0.056 R)
• M7: 1,983,817 km (0.072 R)
• M8: 2,305,154 km (0.099 R)
• M9: 2,456,247 km (0.116 R)
• M10: 5,550,231 km (0.089 R)
• M11: 5,861,394 km (0.054 R)
• M12: 6,433,756 km (0.071 R)
• M13: 6,997,740 km (0.115 R)
• M14: 7,360,664 km (0.088 R)
• M15: 8,474,121 km (0.03 R)
• M16: 8,678,621 km (0.102 R)
• M17: 9,695,288 km (0.091 R)
• M18: 12,545,577 km (0.1 R)
• M19: 14,124,283 km (0.107 R)
• M20: 17,176,828 km (0.12 R)
• M21: 20,457,808 km (0.113 R)
• M22: 22,633,709 km (0.118 R)
• M23: 32,380,758 km (0.102 R)
• M24: 37,471,873 km (0.111 R)
• M25: 39,422,031 km (0.067 R)
• M26: 39,991,550 km (0.098 R)
• M27: 41,585,515 km (0.09 R)
• M28: 42,323,930 km (0.047 R)
• M29: 50,361,076 km (0.087 R)
• M30: 50,695,427 km (0.08 R)
• M31: 56,969,861 km (0.064 R)
• M32: 59,730,091 km (0.114 R)
• M33: 61,048,198 km (0.105 R)
• M34: 66,916,923 km (0.045 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: 338 - 12,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit