🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.44 AU - 0.68 AU

Year: 271 Days

Day: 42.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.3

Radius: 13.6

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.8 AU - 0.86 AU

Year: 488 Days

Day: 10.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,938,884 km

• M1: 169,345 km (0.116 R)
• M2: 685,906 km (0.109 R)
• M3: 1,199,177 km (0.111 R)
• M4: 1,694,495 km (0.115 R)
• M5: 2,637,111 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.7

Radius: 13

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.8 AU - 0.94 AU

Year: 524 Days

Day: 8.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,938,884 km

• M1: 161,865 km (0.097 R)
• M2: 568,622 km (0.069 R)
• M3: 1,233,883 km (0.116 R)
• M4: 1,912,908 km (0.106 R)
• M5: 2,742,877 km (0.102 R)
• M6: 4,393,390 km (0.1 R)
• M7: 5,097,248 km (0.113 R)
• M8: 5,746,353 km (0.073 R)
• M9: 7,189,075 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.6

Radius: 11.2

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.7 AU - 2.22 AU

Year: 1772 Days

Day: 14.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,938,884 km

• M1: 139,575 km (0.114 R)
• M2: 620,233 km (0.075 R)
• M3: 1,102,985 km (0.054 R)
• M4: 1,751,342 km (0.114 R)
• M5: 2,429,918 km (0.073 R)
• M6: 3,743,238 km (0.114 R)
• M7: 4,350,755 km (0.026 R)
• M8: 4,856,246 km (0.087 R)
• M9: 5,514,178 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.9

Radius: 12.2

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.98 AU - 2.08 AU

Year: 1867 Days

Day: 5.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 172.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,938,884 km

• M1: 159,771 km (0.065 R)
• M2: 570,117 km (0.095 R)
• M3: 965,804 km (0.086 R)
• M4: 1,456,036 km (0.058 R)
• M5: 2,425,729 km (0.112 R)
• M6: 3,290,256 km (0.105 R)
• M7: 4,845,475 km (0.113 R)
• M8: 5,290,529 km (0.098 R)
• M9: 7,188,776 km (0.109 R)
• M10: 8,562,085 km (0.107 R)
• M11: 9,343,285 km (0.112 R)
• M12: 12,514,610 km (0.086 R)
• M13: 13,854,109 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.3

Radius: 12

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.18 AU - 2.52 AU

Year: 2326 Days

Day: 9.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,938,884 km

• M1: 149,299 km (0.077 R)
• M2: 942,766 km (0.078 R)
• M3: 1,993,092 km (0.064 R)
• M4: 3,233,708 km (0.106 R)
• M5: 3,669,486 km (0.082 R)
• M6: 4,227,486 km (0.072 R)
• M7: 5,146,466 km (0.087 R)
• M8: 5,979,128 km (0.032 R)
• M9: 6,526,207 km (0.078 R)
• M10: 7,595,233 km (0.109 R)
• M11: 7,976,409 km (0.098 R)
• M12: 8,674,582 km (0.059 R)
• M13: 9,197,726 km (0.1 R)
• M14: 10,307,592 km (0.116 R)
• M15: 10,855,121 km (0.12 R)
• M16: 11,671,027 km (0.104 R)
• M17: 12,137,025 km (0.081 R)
• M18: 13,749,241 km (0.072 R)
• M19: 14,802,261 km (0.104 R)
• M20: 15,703,288 km (0.029 R)
• M21: 17,449,544 km (0.112 R)
• M22: 19,498,586 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.4

Radius: 9.1

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.68 AU - 4.06 AU

Year: 4916 Days

Day: 12.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,938,884 km

• M1: 113,246 km (0.09 R)
• M2: 671,694 km (0.072 R)
• M3: 2,965,329 km (0.045 R)
• M4: 4,530,123 km (0.116 R)
• M5: 5,579,552 km (0.085 R)
• M6: 6,817,175 km (0.1 R)
• M7: 9,869,271 km (0.059 R)
• M8: 10,311,332 km (0.081 R)
• M9: 12,213,021 km (0.098 R)
• M10: 12,568,465 km (0.116 R)
• M11: 16,697,366 km (0.091 R)
• M12: 17,009,427 km (0.103 R)
• M13: 19,856,724 km (0.111 R)
• M14: 21,724,603 km (0.06 R)
• M15: 22,322,097 km (0.094 R)
• M16: 26,901,138 km (0.075 R)
• M17: 31,687,073 km (0.037 R)
• M18: 32,069,894 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.5

Radius: 6.6

Gravity: 13.65 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 5.15 AU - 6.93 AU

Year: 9585 Days

Day: 21.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,938,884 km

• M1: 82,129 km (0.105 R)
• M2: 292,464 km (0.071 R)
• M3: 510,727 km (0.09 R)
• M4: 775,216 km (0.106 R)
• M5: 1,025,045 km (0.12 R)
• M6: 1,481,917 km (0.1 R)
• M7: 1,705,565 km (0.105 R)
• M8: 2,713,705 km (0.1 R)
• M9: 2,964,132 km (0.115 R)
• M10: 3,759,095 km (0.102 R)
• M11: 4,071,156 km (0.119 R)
• M12: 4,428,546 km (0.109 R)
• M13: 4,658,777 km (0.091 R)
• M14: 5,049,975 km (0.113 R)
• M15: 8,472,176 km (0.104 R)
• M16: 9,380,086 km (0.065 R)
• M17: 11,387,839 km (0.085 R)
• M18: 13,665,616 km (0.027 R)
• M19: 13,970,048 km (0.09 R)
• M20: 14,404,031 km (0.108 R)
• M21: 16,298,239 km (0.056 R)
• M22: 17,340,488 km (0.105 R)
• M23: 17,554,113 km (0.113 R)
• M24: 17,986,750 km (0.054 R)
• M25: 18,500,320 km (0.062 R)
• M26: 18,873,118 km (0.112 R)
• M27: 19,788,358 km (0.082 R)
• M28: 20,414,724 km (0.095 R)
• M29: 21,297,501 km (0.097 R)
• M30: 22,541,856 km (0.1 R)
• M31: 23,484,771 km (0.041 R)
• M32: 26,849,227 km (0.086 R)
• M33: 33,623,917 km (0.096 R)
• M34: 34,067,624 km (0.091 R)
• M35: 34,627,868 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.1

Radius: 7.8

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.91 AU - 11.43 AU

Year: 17930 Days

Day: 18.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,938,884 km

• M1: 97,089 km (0.106 R)
• M2: 446,998 km (0.118 R)
• M3: 1,018,761 km (0.07 R)
• M4: 1,510,789 km (0.101 R)
• M5: 1,827,787 km (0.088 R)
• M6: 2,081,206 km (0.086 R)
• M7: 2,576,674 km (0.104 R)
• M8: 3,910,488 km (0.045 R)
• M9: 4,696,176 km (0.059 R)
• M10: 5,376,996 km (0.106 R)
• M11: 9,104,078 km (0.053 R)
• M12: 9,447,255 km (0.09 R)
• M13: 11,520,233 km (0.058 R)
• M14: 14,137,896 km (0.095 R)
• M15: 16,906,355 km (0.078 R)
• M16: 18,887,928 km (0.078 R)
• M17: 20,099,072 km (0.046 R)
• M18: 20,850,054 km (0.09 R)
• M19: 21,619,735 km (0.091 R)
• M20: 21,967,849 km (0.047 R)
• M21: 28,058,128 km (0.097 R)
• M22: 29,525,683 km (0.061 R)
• M23: 32,499,539 km (0.091 R)
• M24: 35,667,274 km (0.098 R)
• M25: 37,388,098 km (0.112 R)
• M26: 39,941,435 km (0.086 R)
• M27: 46,394,788 km (0.115 R)
• M28: 47,999,374 km (0.077 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: 439 - 17,623 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit