🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.5

Radius: 14.2

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.71 AU - 0.77 AU

Year: 447 Days

Day: 14.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,936,599 km

• M1: 176,675 km (0.032 R)
• M2: 649,404 km (0.11 R)
• M3: 1,093,710 km (0.088 R)
• M4: 1,593,367 km (0.07 R)
• M5: 2,605,247 km (0.064 R)
• M6: 3,154,271 km (0.057 R)
• M7: 3,755,206 km (0.119 R)
• M8: 4,912,644 km (0.079 R)
• M9: 5,525,547 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.5

Radius: 11.2

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.69 AU - 0.95 AU

Year: 522 Days

Day: 8.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,936,599 km

• M1: 139,425 km (0.097 R)
• M2: 510,129 km (0.099 R)
• M3: 867,368 km (0.082 R)
• M4: 1,267,992 km (0.084 R)
• M5: 1,743,114 km (0.049 R)
• M6: 2,274,785 km (0.112 R)
• M7: 2,693,210 km (0.12 R)
• M8: 3,328,403 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.9

Radius: 13.7

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.88 AU - 1.44 AU

Year: 878 Days

Day: 9.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,936,599 km

• M1: 170,990 km (0.044 R)
• M2: 654,341 km (0.117 R)
• M3: 1,098,348 km (0.085 R)
• M4: 1,883,437 km (0.115 R)
• M5: 2,730,161 km (0.099 R)
• M6: 4,222,101 km (0.102 R)
• M7: 4,853,553 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.3

Radius: 11.2

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.03 AU - 1.35 AU

Year: 912 Days

Day: 8.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,936,599 km

• M1: 152,889 km (0.061 R)
• M2: 827,875 km (0.09 R)
• M3: 1,594,564 km (0.102 R)
• M4: 2,333,128 km (0.115 R)
• M5: 2,744,074 km (0.075 R)
• M6: 3,421,004 km (0.049 R)
• M7: 5,305,937 km (0.08 R)
• M8: 6,301,062 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.8

Radius: 8.4

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.17 AU - 1.63 AU

Year: 1164 Days

Day: 6.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,936,599 km

• M1: 104,419 km (0.083 R)
• M2: 645,664 km (0.098 R)
• M3: 911,500 km (0.094 R)
• M4: 2,681,991 km (0.027 R)
• M5: 3,326,907 km (0.087 R)
• M6: 4,957,075 km (0.053 R)
• M7: 5,985,710 km (0.101 R)
• M8: 6,351,477 km (0.108 R)
• M9: 7,515,947 km (0.076 R)
• M10: 7,942,001 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.1

Radius: 11.8

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.3 AU - 5.62 AU

Year: 7765 Days

Day: 5.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,936,599 km

• M1: 165,904 km (0.11 R)
• M2: 615,745 km (0.118 R)
• M3: 989,141 km (0.117 R)
• M4: 2,366,040 km (0.046 R)
• M5: 2,831,738 km (0.102 R)
• M6: 3,266,470 km (0.117 R)
• M7: 4,028,970 km (0.07 R)
• M8: 5,504,753 km (0.11 R)
• M9: 7,039,328 km (0.085 R)
• M10: 8,267,526 km (0.092 R)
• M11: 9,972,942 km (0.114 R)
• M12: 15,672,471 km (0.103 R)
• M13: 20,016,793 km (0.116 R)
• M14: 24,380,863 km (0.09 R)
• M15: 26,593,864 km (0.069 R)
• M16: 34,369,363 km (0.077 R)
• M17: 35,164,326 km (0.102 R)
• M18: 37,384,059 km (0.118 R)
• M19: 39,078,255 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.4

Radius: 6.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.66 AU - 6.3 AU

Year: 9017 Days

Day: 18 Hours

Environment

Temp: -234 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,936,599 km

• M1: 80,932 km (0.054 R)
• M2: 597,195 km (0.035 R)
• M3: 1,377,946 km (0.113 R)
• M4: 2,893,073 km (0.1 R)
• M5: 3,965,241 km (0.067 R)
• M6: 7,473,311 km (0.106 R)
• M7: 9,091,511 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425

Radius: 4.2

Gravity: 24.09 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 5.31 AU - 7.25 AU

Year: 11062 Days

Day: 20.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,936,599 km

• M1: 55,650 km (0.114 R)
• M2: 202,556 km (0.115 R)
• M3: 347,067 km (0.101 R)
• M4: 734,675 km (0.072 R)
• M5: 1,021,305 km (0.09 R)
• M6: 1,650,513 km (0.076 R)
• M7: 2,337,168 km (0.084 R)
• M8: 3,381,510 km (0.039 R)
• M9: 4,557,948 km (0.078 R)
• M10: 4,912,794 km (0.11 R)
• M11: 6,444,826 km (0.112 R)
• M12: 7,122,504 km (0.099 R)
• M13: 8,886,263 km (0.088 R)
• M14: 9,533,573 km (0.105 R)
• M15: 10,261,367 km (0.114 R)
• M16: 13,604,430 km (0.069 R)
• M17: 15,487,120 km (0.111 R)
• M18: 15,883,404 km (0.114 R)
• M19: 19,376,814 km (0.079 R)
• M20: 19,836,977 km (0.118 R)
• M21: 20,858,730 km (0.065 R)
• M22: 30,429,404 km (0.027 R)
• M23: 31,259,672 km (0.092 R)
• M24: 32,965,387 km (0.048 R)
• M25: 38,453,235 km (0.098 R)
• M26: 38,936,287 km (0.097 R)
• M27: 43,336,558 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.8

Radius: 8

Gravity: 15.62 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 5.41 AU - 8.83 AU

Year: 13355 Days

Day: 19.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 65,936,599 km

• M1: 99,483 km (0.076 R)
• M2: 354,248 km (0.114 R)
• M3: 890,107 km (0.087 R)
• M4: 1,468,752 km (0.099 R)
• M5: 2,664,338 km (0.056 R)
• M6: 4,218,959 km (0.082 R)
• M7: 5,334,062 km (0.104 R)
• M8: 5,707,757 km (0.113 R)
• M9: 7,244,875 km (0.099 R)
• M10: 9,144,768 km (0.117 R)
• M11: 13,758,965 km (0.059 R)
• M12: 15,413,817 km (0.069 R)
• M13: 17,602,134 km (0.105 R)
• M14: 18,096,705 km (0.055 R)
• M15: 20,983,944 km (0.094 R)
• M16: 23,168,970 km (0.09 R)
• M17: 26,995,235 km (0.028 R)
• M18: 27,652,867 km (0.104 R)
• M19: 28,433,768 km (0.1 R)
• M20: 29,690,241 km (0.047 R)
• M21: 30,983,514 km (0.032 R)
• M22: 32,930,979 km (0.11 R)
• M23: 33,681,811 km (0.06 R)
• M24: 38,843,386 km (0.041 R)
• M25: 41,684,100 km (0.104 R)
• M26: 45,425,992 km (0.073 R)
• M27: 46,200,460 km (0.062 R)
• M28: 49,385,997 km (0.118 R)
• M29: 50,369,603 km (0.106 R)
• M30: 50,700,214 km (0.12 R)
• M31: 51,032,471 km (0.104 R)
• M32: 51,869,172 km (0.052 R)
• M33: 55,659,982 km (0.066 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 223 - 10,768 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit