🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.43 AU - 0.61 AU

Year: 246 Days

Day: 46.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 49.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,422,534 km

• M1: 26,778 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.56 AU - 0.66 AU

Year: 313 Days

Day: 12.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 147 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.5

Radius: 13.5

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.81 AU - 0.81 AU

Year: 478 Days

Day: 8.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,422,534 km

• M1: 167,849 km (0.095 R)
• M2: 592,108 km (0.061 R)
• M3: 1,196,185 km (0.06 R)
• M4: 1,617,452 km (0.078 R)
• M5: 2,185,326 km (0.096 R)
• M6: 2,776,387 km (0.092 R)
• M7: 3,312,546 km (0.116 R)
• M8: 4,083,573 km (0.104 R)
• M9: 4,519,950 km (0.089 R)
• M10: 5,068,525 km (0.097 R)
• M11: 5,785,398 km (0.095 R)
• M12: 6,706,473 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.5

Radius: 10.6

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.87 AU - 1.89 AU

Year: 1691 Days

Day: 14.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,422,534 km

• M1: 136,134 km (0.115 R)
• M2: 475,272 km (0.085 R)
• M3: 816,206 km (0.048 R)
• M4: 1,402,031 km (0.094 R)
• M5: 1,946,867 km (0.105 R)
• M6: 2,628,734 km (0.108 R)
• M7: 3,652,582 km (0.094 R)
• M8: 4,409,696 km (0.113 R)
• M9: 5,351,415 km (0.093 R)
• M10: 6,613,722 km (0.053 R)
• M11: 7,134,921 km (0.108 R)
• M12: 7,550,354 km (0.11 R)
• M13: 7,899,665 km (0.056 R)
• M14: 9,468,348 km (0.105 R)
• M15: 9,906,969 km (0.054 R)
• M16: 10,656,904 km (0.088 R)
• M17: 11,374,225 km (0.115 R)
• M18: 12,014,504 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.4

Radius: 10.6

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.32 AU - 2.4 AU

Year: 2378 Days

Day: 11.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,422,534 km

• M1: 131,796 km (0.118 R)
• M2: 570,417 km (0.104 R)
• M3: 1,069,475 km (0.079 R)
• M4: 2,043,806 km (0.067 R)
• M5: 2,854,178 km (0.098 R)
• M6: 3,423,547 km (0.086 R)
• M7: 4,328,914 km (0.117 R)
• M8: 5,263,302 km (0.099 R)
• M9: 6,304,204 km (0.097 R)
• M10: 8,905,711 km (0.106 R)
• M11: 9,259,659 km (0.084 R)
• M12: 9,592,515 km (0.056 R)
• M13: 10,154,404 km (0.099 R)
• M14: 10,606,489 km (0.102 R)
• M15: 11,378,264 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 376.3

Radius: 4

Gravity: 23.52 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.97 AU - 8.91 AU

Year: 13313 Days

Day: 17.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,422,534 km

• M1: 55,351 km (0.092 R)
• M2: 213,177 km (0.058 R)
• M3: 429,346 km (0.104 R)
• M4: 800,199 km (0.105 R)
• M5: 1,047,484 km (0.088 R)
• M6: 1,833,920 km (0.087 R)
• M7: 1,998,478 km (0.059 R)
• M8: 2,395,660 km (0.087 R)
• M9: 3,417,264 km (0.068 R)
• M10: 5,008,387 km (0.111 R)
• M11: 5,946,366 km (0.092 R)
• M12: 6,125,434 km (0.11 R)
• M13: 8,884,917 km (0.074 R)
• M14: 10,455,096 km (0.102 R)
• M15: 12,029,763 km (0.05 R)
• M16: 13,508,389 km (0.111 R)
• M17: 14,515,781 km (0.086 R)
• M18: 17,542,744 km (0.065 R)
• M19: 21,130,101 km (0.117 R)
• M20: 22,831,627 km (0.042 R)
• M21: 23,270,846 km (0.11 R)
• M22: 24,806,469 km (0.118 R)
• M23: 29,400,769 km (0.112 R)
• M24: 34,416,187 km (0.037 R)
• M25: 35,694,650 km (0.118 R)
• M26: 37,976,766 km (0.083 R)
• M27: 45,541,930 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.6

Radius: 5.9

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 7.52 AU - 8.32 AU

Year: 14622 Days

Day: 20.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 51,422,534 km

• M1: 73,453 km (0.113 R)
• M2: 393,293 km (0.032 R)
• M3: 650,452 km (0.102 R)
• M4: 837,748 km (0.12 R)
• M5: 1,351,766 km (0.072 R)
• M6: 1,678,339 km (0.06 R)
• M7: 2,163,634 km (0.073 R)
• M8: 2,370,677 km (0.055 R)
• M9: 2,716,697 km (0.072 R)
• M10: 3,166,389 km (0.111 R)
• M11: 4,155,978 km (0.071 R)
• M12: 5,716,733 km (0.045 R)
• M13: 5,931,556 km (0.118 R)
• M14: 6,226,263 km (0.109 R)
• M15: 7,046,359 km (0.095 R)
• M16: 7,377,120 km (0.06 R)
• M17: 8,663,213 km (0.091 R)
• M18: 10,565,948 km (0.106 R)
• M19: 13,852,164 km (0.109 R)
• M20: 16,433,775 km (0.096 R)
• M21: 19,000,725 km (0.081 R)
• M22: 19,319,368 km (0.068 R)
• M23: 21,477,318 km (0.059 R)
• M24: 23,699,145 km (0.111 R)
• M25: 25,486,840 km (0.046 R)
• M26: 29,222,448 km (0.083 R)
• M27: 33,538,347 km (0.113 R)
• M28: 34,709,698 km (0.12 R)
• M29: 35,185,868 km (0.061 R)
• M30: 41,509,819 km (0.104 R)
• M31: 42,181,064 km (0.105 R)
• M32: 43,269,987 km (0.085 R)
• M33: 46,504,892 km (0.101 R)
• M34: 49,445,836 km (0.111 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 11,574 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit