🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.47 AU - 0.75 AU

Year: 308 Days

Day: 12.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.5

Radius: 12.5

Gravity: 6.12 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.87 AU - 1.07 AU

Year: 617 Days

Day: 12.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,847,535 km

• M1: 160,519 km (0.076 R)
• M2: 581,337 km (0.081 R)
• M3: 1,237,474 km (0.103 R)
• M4: 1,691,054 km (0.084 R)
• M5: 2,187,719 km (0.087 R)
• M6: 2,601,357 km (0.11 R)
• M7: 4,185,748 km (0.04 R)
• M8: 4,881,379 km (0.069 R)
• M9: 5,302,197 km (0.059 R)
• M10: 5,920,635 km (0.084 R)
• M11: 6,462,030 km (0.12 R)
• M12: 7,552,299 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.8

Radius: 13.8

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.6 AU - 2.3 AU

Year: 1758 Days

Day: 12.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,847,535 km

• M1: 171,589 km (0.111 R)
• M2: 632,500 km (0.053 R)
• M3: 1,192,445 km (0.118 R)
• M4: 1,886,280 km (0.103 R)
• M5: 2,434,556 km (0.098 R)
• M6: 3,305,664 km (0.102 R)
• M7: 3,753,560 km (0.097 R)
• M8: 4,223,447 km (0.082 R)
• M9: 6,537,726 km (0.113 R)
• M10: 7,221,987 km (0.116 R)
• M11: 8,765,388 km (0.088 R)
• M12: 9,899,041 km (0.082 R)
• M13: 10,946,675 km (0.113 R)
• M14: 12,028,417 km (0.057 R)
• M15: 13,180,171 km (0.102 R)
• M16: 13,677,733 km (0.096 R)
• M17: 14,274,180 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.9

Radius: 11.9

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.03 AU - 2.73 AU

Year: 2371 Days

Day: 8.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,847,535 km

• M1: 153,637 km (0.104 R)
• M2: 559,197 km (0.079 R)
• M3: 1,177,335 km (0.112 R)
• M4: 1,591,721 km (0.091 R)
• M5: 2,020,469 km (0.097 R)
• M6: 2,637,859 km (0.116 R)
• M7: 3,318,530 km (0.034 R)
• M8: 3,961,352 km (0.076 R)
• M9: 4,836,798 km (0.096 R)
• M10: 5,454,638 km (0.057 R)
• M11: 8,053,751 km (0.062 R)
• M12: 8,551,164 km (0.025 R)
• M13: 9,577,256 km (0.087 R)
• M14: 10,488,157 km (0.071 R)
• M15: 11,455,906 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841

Radius: 14

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.31 AU - 5.07 AU

Year: 6558 Days

Day: 11.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,847,535 km

• M1: 174,132 km (0.104 R)
• M2: 806,183 km (0.028 R)
• M3: 1,247,048 km (0.063 R)
• M4: 2,018,973 km (0.105 R)
• M5: 2,551,092 km (0.055 R)
• M6: 3,134,823 km (0.076 R)
• M7: 3,928,141 km (0.073 R)
• M8: 4,493,022 km (0.087 R)
• M9: 5,723,166 km (0.066 R)
• M10: 7,392,080 km (0.072 R)
• M11: 8,054,948 km (0.073 R)
• M12: 9,635,449 km (0.097 R)
• M13: 10,475,292 km (0.099 R)
• M14: 11,061,865 km (0.113 R)
• M15: 14,932,560 km (0.082 R)
• M16: 18,476,683 km (0.062 R)
• M17: 20,443,895 km (0.07 R)
• M18: 21,129,652 km (0.067 R)
• M19: 22,386,723 km (0.071 R)
• M20: 23,361,652 km (0.118 R)
• M21: 23,859,813 km (0.101 R)
• M22: 25,746,841 km (0.081 R)
• M23: 26,367,672 km (0.038 R)
• M24: 35,483,269 km (0.047 R)
• M25: 38,281,347 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.8

Radius: 9.3

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.28 AU - 6.36 AU

Year: 9066 Days

Day: 6.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 79,847,535 km

• M1: 115,789 km (0.055 R)
• M2: 685,457 km (0.082 R)
• M3: 984,354 km (0.078 R)
• M4: 1,335,610 km (0.083 R)
• M5: 1,740,870 km (0.12 R)
• M6: 2,039,019 km (0.08 R)
• M7: 4,414,484 km (0.091 R)
• M8: 4,733,875 km (0.109 R)
• M9: 5,550,679 km (0.088 R)
• M10: 6,948,372 km (0.104 R)
• M11: 7,422,149 km (0.042 R)
• M12: 8,001,990 km (0.116 R)
• M13: 8,656,481 km (0.116 R)
• M14: 9,065,930 km (0.031 R)
• M15: 9,393,400 km (0.073 R)
• M16: 10,071,976 km (0.1 R)
• M17: 10,887,135 km (0.054 R)
• M18: 12,475,714 km (0.031 R)
• M19: 13,057,800 km (0.111 R)
• M20: 18,459,031 km (0.115 R)
• M21: 18,985,915 km (0.102 R)
• M22: 20,069,901 km (0.12 R)
• M23: 22,023,350 km (0.073 R)
• M24: 22,530,786 km (0.095 R)
• M25: 22,873,365 km (0.119 R)
• M26: 24,189,377 km (0.096 R)
• M27: 26,684,371 km (0.091 R)
• M28: 27,552,637 km (0.119 R)
• M29: 29,345,866 km (0.113 R)
• M30: 31,855,969 km (0.074 R)
• M31: 33,830,062 km (0.101 R)
• M32: 34,279,604 km (0.084 R)
• M33: 34,619,341 km (0.086 R)
• M34: 36,705,184 km (0.096 R)
• M35: 38,996,425 km (0.073 R)
• M36: 42,154,286 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 182

Radius: 6.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.14 AU - 8.1 AU

Year: 12267 Days

Day: 23.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 79,847,535 km

• M1: 86,617 km (0.077 R)
• M2: 303,983 km (0.094 R)
• M3: 2,305,453 km (0.117 R)
• M4: 2,675,857 km (0.051 R)
• M5: 3,126,446 km (0.104 R)
• M6: 4,029,269 km (0.081 R)
• M7: 6,539,970 km (0.051 R)
• M8: 10,679,493 km (0.069 R)
• M9: 12,692,631 km (0.058 R)
• M10: 14,650,718 km (0.115 R)
• M11: 17,718,073 km (0.077 R)
• M12: 18,053,321 km (0.101 R)
• M13: 23,042,560 km (0.078 R)
• M14: 25,002,292 km (0.061 R)
• M15: 30,382,879 km (0.072 R)
• M16: 31,740,629 km (0.1 R)
• M17: 32,235,349 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985

Radius: 7.5

Gravity: 17.51 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 7.18 AU - 11.16 AU

Year: 17930 Days

Day: 19.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,847,535 km

• M1: 93,349 km (0.118 R)
• M2: 499,058 km (0.11 R)
• M3: 770,429 km (0.118 R)
• M4: 1,128,267 km (0.049 R)
• M5: 1,788,293 km (0.026 R)
• M6: 2,538,825 km (0.102 R)
• M7: 3,311,648 km (0.114 R)
• M8: 4,232,124 km (0.113 R)
• M9: 5,391,358 km (0.112 R)
• M10: 5,918,092 km (0.106 R)
• M11: 6,567,945 km (0.07 R)
• M12: 7,655,521 km (0.076 R)
• M13: 8,060,483 km (0.11 R)
• M14: 8,803,685 km (0.086 R)
• M15: 9,766,497 km (0.1 R)
• M16: 11,568,104 km (0.091 R)
• M17: 16,142,209 km (0.058 R)
• M18: 17,754,425 km (0.11 R)
• M19: 18,107,027 km (0.092 R)
• M20: 21,196,971 km (0.094 R)
• M21: 21,593,854 km (0.076 R)
• M22: 26,293,322 km (0.108 R)
• M23: 29,490,827 km (0.072 R)
• M24: 31,246,657 km (0.108 R)
• M25: 33,874,343 km (0.087 R)
• M26: 41,697,863 km (0.104 R)
• M27: 44,713,906 km (0.038 R)
• M28: 53,889,641 km (0.097 R)
• M29: 58,040,533 km (0.059 R)
• M30: 59,208,593 km (0.062 R)
• M31: 59,995,927 km (0.075 R)
• M32: 73,334,073 km (0.071 R)
• M33: 79,131,888 km (0.073 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 11,087 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit