🌌 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: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.44 AU - 0.6 AU

Year: 246 Days

Day: 40.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 52,662,269 km

• M1: 151,991 km (0.113 R)
• M2: 748,438 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.62 AU - 0.7 AU

Year: 352 Days

Day: 39.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,662,269 km

• M1: 60,288 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.2

Radius: 12.3

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.7 AU - 1.16 AU

Year: 588 Days

Day: 5.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,662,269 km

• M1: 153,039 km (0.085 R)
• M2: 570,417 km (0.107 R)
• M3: 953,686 km (0.089 R)
• M4: 1,357,002 km (0.104 R)
• M5: 1,800,111 km (0.078 R)
• M6: 2,807,204 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.1

Radius: 10.2

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.81 AU - 1.07 AU

Year: 598 Days

Day: 14.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,662,269 km

• M1: 126,859 km (0.113 R)
• M2: 543,339 km (0.045 R)
• M3: 2,004,163 km (0.094 R)
• M4: 2,357,214 km (0.041 R)
• M5: 2,715,800 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.8

Radius: 12

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.92 AU - 1.02 AU

Year: 627 Days

Day: 10.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,662,269 km

• M1: 149,299 km (0.09 R)
• M2: 613,052 km (0.058 R)
• M3: 1,125,425 km (0.064 R)
• M4: 1,501,663 km (0.048 R)
• M5: 1,912,908 km (0.098 R)
• M6: 2,701,738 km (0.058 R)
• M7: 3,171,924 km (0.107 R)
• M8: 3,673,525 km (0.025 R)
• M9: 4,164,954 km (0.099 R)
• M10: 4,605,520 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.2

Radius: 8.2

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.96 AU - 1.4 AU

Year: 841 Days

Day: 8.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,662,269 km

• M1: 102,026 km (0.05 R)
• M2: 384,317 km (0.108 R)
• M3: 868,715 km (0.099 R)
• M4: 1,281,755 km (0.095 R)
• M5: 1,587,832 km (0.074 R)
• M6: 2,340,010 km (0.095 R)
• M7: 2,802,118 km (0.111 R)
• M8: 3,375,526 km (0.103 R)
• M9: 3,995,610 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.8

Radius: 13.6

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.02 AU - 1.58 AU

Year: 972 Days

Day: 7.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,662,269 km

• M1: 169,195 km (0.097 R)
• M2: 705,204 km (0.109 R)
• M3: 1,256,323 km (0.103 R)
• M4: 1,710,352 km (0.066 R)
• M5: 3,155,169 km (0.081 R)
• M6: 3,635,677 km (0.119 R)
• M7: 4,511,124 km (0.056 R)
• M8: 5,920,485 km (0.081 R)
• M9: 6,404,883 km (0.087 R)
• M10: 6,868,337 km (0.108 R)
• M11: 7,504,428 km (0.093 R)
• M12: 8,020,241 km (0.078 R)
• M13: 9,297,059 km (0.093 R)
• M14: 10,045,796 km (0.11 R)
• M15: 10,964,178 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.6

Radius: 8.4

Gravity: 12.81 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.36 AU - 3.42 AU

Year: 4095 Days

Day: 11.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,662,269 km

• M1: 120,426 km (0.061 R)
• M2: 555,756 km (0.082 R)
• M3: 823,536 km (0.097 R)
• M4: 1,752,689 km (0.118 R)
• M5: 2,368,882 km (0.098 R)
• M6: 2,666,881 km (0.096 R)
• M7: 3,736,506 km (0.077 R)
• M8: 4,236,313 km (0.1 R)
• M9: 4,652,344 km (0.087 R)
• M10: 6,066,493 km (0.106 R)
• M11: 7,395,371 km (0.034 R)
• M12: 8,987,092 km (0.053 R)
• M13: 9,266,391 km (0.068 R)
• M14: 11,020,127 km (0.106 R)
• M15: 11,903,503 km (0.073 R)
• M16: 12,984,347 km (0.101 R)
• M17: 13,863,384 km (0.114 R)
• M18: 15,797,386 km (0.106 R)
• M19: 17,101,131 km (0.116 R)
• M20: 19,321,014 km (0.09 R)
• M21: 21,654,890 km (0.05 R)
• M22: 23,261,422 km (0.104 R)
• M23: 23,788,754 km (0.055 R)
• M24: 28,641,709 km (0.105 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.5

Radius: 14

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.76 AU - 5.98 AU

Year: 7050 Days

Day: 7.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,662,269 km

• M1: 174,880 km (0.092 R)
• M2: 693,386 km (0.08 R)
• M3: 1,442,722 km (0.115 R)
• M4: 2,071,931 km (0.096 R)
• M5: 3,986,634 km (0.046 R)
• M6: 4,481,204 km (0.039 R)
• M7: 5,625,179 km (0.067 R)
• M8: 9,267,738 km (0.099 R)
• M9: 15,717,799 km (0.083 R)
• M10: 17,346,023 km (0.109 R)
• M11: 19,431,417 km (0.113 R)
• M12: 24,176,213 km (0.107 R)
• M13: 29,550,067 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 577.5

Radius: 3.3

Gravity: 53.03 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.43 AU - 8.87 AU

Year: 12542 Days

Day: 24.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 52,662,269 km

• M1: 41,139 km (0.098 R)
• M2: 173,384 km (0.114 R)
• M3: 487,839 km (0.112 R)
• M4: 601,383 km (0.054 R)
• M5: 796,160 km (0.036 R)
• M6: 1,259,165 km (0.111 R)
• M7: 1,670,111 km (0.101 R)
• M8: 1,781,561 km (0.084 R)
• M9: 1,932,057 km (0.103 R)
• M10: 3,235,054 km (0.09 R)
• M11: 3,434,169 km (0.118 R)
• M12: 3,884,159 km (0.104 R)
• M13: 4,554,208 km (0.065 R)
• M14: 5,933,500 km (0.093 R)
• M15: 7,312,643 km (0.112 R)
• M16: 9,381,582 km (0.086 R)
• M17: 11,636,022 km (0.07 R)
• M18: 12,043,825 km (0.115 R)
• M19: 13,073,956 km (0.096 R)
• M20: 14,293,029 km (0.085 R)
• M21: 14,693,204 km (0.119 R)
• M22: 14,828,141 km (0.12 R)
• M23: 16,880,474 km (0.073 R)
• M24: 17,554,113 km (0.102 R)
• M25: 17,858,994 km (0.085 R)
• M26: 19,681,844 km (0.108 R)
• M27: 20,680,260 km (0.075 R)
• M28: 21,624,821 km (0.066 R)
• M29: 23,507,211 km (0.058 R)
• M30: 25,108,656 km (0.108 R)
• M31: 27,185,673 km (0.03 R)
• M32: 35,414,154 km (0.094 R)
• M33: 36,145,987 km (0.03 R)
• M34: 36,392,225 km (0.108 R)
• M35: 36,515,643 km (0.108 R)
• M36: 41,016,595 km (0.07 R)
• M37: 43,608,079 km (0.065 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 20,113 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit