🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.58 AU - 0.74 AU

Year: 341 Days

Day: 18.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,167,323 km

• M1: 290,818 km (0.076 R)
• M2: 550,371 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.9

Radius: 9.2

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.01 AU - 1.13 AU

Year: 704 Days

Day: 10.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,167,323 km

• M1: 114,442 km (0.079 R)
• M2: 410,945 km (0.096 R)
• M3: 802,892 km (0.079 R)
• M4: 1,234,631 km (0.039 R)
• M5: 2,206,868 km (0.105 R)
• M6: 2,895,766 km (0.085 R)
• M7: 3,376,723 km (0.1 R)
• M8: 3,793,353 km (0.113 R)
• M9: 4,197,267 km (0.111 R)
• M10: 4,713,081 km (0.118 R)
• M11: 5,343,337 km (0.097 R)
• M12: 6,208,910 km (0.044 R)
• M13: 7,076,428 km (0.114 R)
• M14: 8,070,656 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.9

Radius: 11.4

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.01 AU - 1.33 AU

Year: 805 Days

Day: 14.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,167,323 km

• M1: 144,661 km (0.103 R)
• M2: 502,350 km (0.113 R)
• M3: 952,789 km (0.086 R)
• M4: 1,495,380 km (0.114 R)
• M5: 1,985,613 km (0.117 R)
• M6: 3,378,219 km (0.055 R)
• M7: 3,927,393 km (0.096 R)
• M8: 5,129,561 km (0.115 R)
• M9: 5,554,120 km (0.044 R)
• M10: 7,040,525 km (0.115 R)
• M11: 7,664,348 km (0.106 R)
• M12: 8,967,794 km (0.089 R)
• M13: 9,846,831 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.8

Radius: 12.9

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.58 AU - 1.84 AU

Year: 1422 Days

Day: 9.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,167,323 km

• M1: 160,818 km (0.118 R)
• M2: 572,062 km (0.091 R)
• M3: 1,023,100 km (0.086 R)
• M4: 1,916,947 km (0.12 R)
• M5: 2,355,119 km (0.107 R)
• M6: 2,951,865 km (0.096 R)
• M7: 3,617,576 km (0.071 R)
• M8: 4,076,991 km (0.089 R)
• M9: 4,683,311 km (0.059 R)
• M10: 5,191,794 km (0.081 R)
• M11: 6,121,246 km (0.075 R)
• M12: 6,871,329 km (0.107 R)
• M13: 8,229,828 km (0.059 R)
• M14: 9,820,502 km (0.067 R)
• M15: 10,310,584 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 13.8

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.75 AU - 2.45 AU

Year: 1935 Days

Day: 8.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 53,167,323 km

• M1: 181,761 km (0.064 R)
• M2: 627,264 km (0.037 R)
• M3: 1,320,052 km (0.104 R)
• M4: 2,046,948 km (0.12 R)
• M5: 2,676,156 km (0.099 R)
• M6: 3,332,592 km (0.084 R)
• M7: 4,366,911 km (0.054 R)
• M8: 4,948,698 km (0.093 R)
• M9: 6,192,305 km (0.094 R)
• M10: 7,121,906 km (0.101 R)
• M11: 7,576,833 km (0.109 R)
• M12: 8,326,917 km (0.106 R)
• M13: 8,800,244 km (0.109 R)
• M14: 10,222,471 km (0.109 R)
• M15: 10,914,212 km (0.085 R)
• M16: 11,559,427 km (0.1 R)
• M17: 12,391,341 km (0.069 R)
• M18: 15,221,284 km (0.03 R)
• M19: 16,318,585 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.9

Radius: 12.7

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.18 AU - 2.58 AU

Year: 2335 Days

Day: 7.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,167,323 km

• M1: 163,062 km (0.11 R)
• M2: 2,780,426 km (0.104 R)
• M3: 3,279,485 km (0.093 R)
• M4: 3,779,441 km (0.081 R)
• M5: 5,367,572 km (0.087 R)
• M6: 7,225,577 km (0.051 R)
• M7: 8,916,332 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.9

Radius: 14.5

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.87 AU - 6.15 AU

Year: 7130 Days

Day: 6.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,167,323 km

• M1: 184,903 km (0.038 R)
• M2: 1,244,205 km (0.098 R)
• M3: 1,965,716 km (0.118 R)
• M4: 3,508,968 km (0.078 R)
• M5: 8,171,784 km (0.05 R)
• M6: 11,035,985 km (0.11 R)
• M7: 13,488,043 km (0.095 R)
• M8: 14,614,066 km (0.081 R)
• M9: 20,691,779 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 758.6

Radius: 6.9

Gravity: 15.93 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 5.46 AU - 8 AU

Year: 11101 Days

Day: 20 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 53,167,323 km

• M1: 85,869 km (0.117 R)
• M2: 303,235 km (0.103 R)
• M3: 731,683 km (0.103 R)
• M4: 1,107,623 km (0.105 R)
• M5: 1,448,556 km (0.118 R)
• M6: 1,941,780 km (0.05 R)
• M7: 2,440,540 km (0.053 R)
• M8: 3,483,087 km (0.105 R)
• M9: 3,717,507 km (0.067 R)
• M10: 4,131,893 km (0.114 R)
• M11: 4,669,398 km (0.116 R)
• M12: 7,127,142 km (0.029 R)
• M13: 9,062,489 km (0.053 R)
• M14: 9,507,992 km (0.097 R)
• M15: 10,335,866 km (0.087 R)
• M16: 10,932,313 km (0.062 R)
• M17: 11,154,765 km (0.111 R)
• M18: 11,437,206 km (0.064 R)
• M19: 13,045,234 km (0.062 R)
• M20: 13,295,511 km (0.108 R)
• M21: 15,139,305 km (0.102 R)
• M22: 16,702,752 km (0.099 R)
• M23: 18,370,918 km (0.062 R)
• M24: 19,569,945 km (0.101 R)
• M25: 23,387,383 km (0.093 R)
• M26: 31,998,985 km (0.094 R)
• M27: 33,263,087 km (0.088 R)
• M28: 35,524,558 km (0.089 R)
• M29: 37,129,444 km (0.049 R)
• M30: 39,170,557 km (0.091 R)
• M31: 39,823,402 km (0.099 R)
• M32: 40,883,004 km (0.116 R)
• M33: 43,335,661 km (0.038 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 18,660 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit