🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.94 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.8

Radius: 11.9

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.77 AU - 1.99 AU

Year: 1664 Days

Day: 9.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,463,967 km

• M1: 147,952 km (0.086 R)
• M2: 603,927 km (0.067 R)
• M3: 1,033,422 km (0.094 R)
• M4: 2,180,239 km (0.116 R)
• M5: 3,121,210 km (0.088 R)
• M6: 3,576,586 km (0.086 R)
• M7: 6,025,503 km (0.074 R)
• M8: 8,471,877 km (0.072 R)
• M9: 9,556,312 km (0.045 R)
• M10: 12,075,091 km (0.029 R)
• M11: 13,857,400 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.8

Radius: 12

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.5 AU - 3.02 AU

Year: 2961 Days

Day: 12 Hours

Environment

Temp: -206 °C

Axial Tilt: 151.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,463,967 km

• M1: 149,598 km (0.072 R)
• M2: 551,268 km (0.079 R)
• M3: 950,395 km (0.079 R)
• M4: 1,490,743 km (0.084 R)
• M5: 1,899,743 km (0.109 R)
• M6: 2,384,291 km (0.04 R)
• M7: 3,258,092 km (0.089 R)
• M8: 3,858,279 km (0.115 R)
• M9: 5,038,007 km (0.07 R)
• M10: 5,531,531 km (0.096 R)
• M11: 6,003,063 km (0.116 R)
• M12: 6,587,093 km (0.087 R)
• M13: 8,777,206 km (0.118 R)
• M14: 10,249,100 km (0.101 R)
• M15: 11,373,328 km (0.119 R)
• M16: 12,269,120 km (0.103 R)
• M17: 14,988,061 km (0.115 R)
• M18: 15,494,450 km (0.085 R)
• M19: 16,169,884 km (0.118 R)
• M20: 18,029,236 km (0.087 R)
• M21: 18,544,451 km (0.104 R)
• M22: 19,724,629 km (0.051 R)
• M23: 21,142,817 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.3

Radius: 12.3

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.03 AU - 3.89 AU

Year: 4156 Days

Day: 6.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,463,967 km

• M1: 153,188 km (0.067 R)
• M2: 569,070 km (0.075 R)
• M3: 961,914 km (0.115 R)
• M4: 2,953,660 km (0.049 R)
• M5: 3,442,397 km (0.053 R)
• M6: 4,006,979 km (0.08 R)
• M7: 4,632,747 km (0.034 R)
• M8: 5,430,552 km (0.036 R)
• M9: 6,717,992 km (0.117 R)
• M10: 10,260,619 km (0.091 R)
• M11: 11,254,846 km (0.092 R)
• M12: 12,889,652 km (0.109 R)
• M13: 16,567,216 km (0.097 R)
• M14: 17,631,007 km (0.07 R)
• M15: 18,614,313 km (0.105 R)
• M16: 19,119,505 km (0.103 R)
• M17: 20,757,453 km (0.102 R)
• M18: 21,714,580 km (0.115 R)
• M19: 25,917,532 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.7

Radius: 9.7

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.36 AU - 4.14 AU

Year: 4689 Days

Day: 11.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,463,967 km

• M1: 120,576 km (0.117 R)
• M2: 584,180 km (0.058 R)
• M3: 966,103 km (0.1 R)
• M4: 1,330,374 km (0.083 R)
• M5: 2,064,899 km (0.1 R)
• M6: 2,901,002 km (0.108 R)
• M7: 3,617,725 km (0.028 R)
• M8: 4,624,220 km (0.076 R)
• M9: 5,277,813 km (0.096 R)
• M10: 5,703,868 km (0.105 R)
• M11: 6,152,811 km (0.069 R)
• M12: 7,800,631 km (0.045 R)
• M13: 8,221,899 km (0.095 R)
• M14: 9,947,510 km (0.077 R)
• M15: 12,592,700 km (0.114 R)
• M16: 12,947,696 km (0.067 R)
• M17: 14,435,297 km (0.097 R)
• M18: 17,307,576 km (0.082 R)
• M19: 17,802,296 km (0.11 R)
• M20: 18,137,246 km (0.07 R)
• M21: 18,877,606 km (0.051 R)
• M22: 19,578,621 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.3

Radius: 8.9

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.93 AU - 3.93 AU

Year: 5030 Days

Day: 11.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,463,967 km

• M1: 113,096 km (0.084 R)
• M2: 602,431 km (0.097 R)
• M3: 1,022,501 km (0.035 R)
• M4: 1,879,099 km (0.037 R)
• M5: 2,220,481 km (0.065 R)
• M6: 2,778,182 km (0.091 R)
• M7: 3,081,716 km (0.072 R)
• M8: 3,445,239 km (0.075 R)
• M9: 3,919,015 km (0.117 R)
• M10: 4,368,707 km (0.093 R)
• M11: 4,664,162 km (0.114 R)
• M12: 5,371,611 km (0.1 R)
• M13: 6,549,993 km (0.051 R)
• M14: 10,455,994 km (0.059 R)
• M15: 12,917,477 km (0.118 R)
• M16: 13,768,838 km (0.114 R)
• M17: 22,307,586 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 380.7

Radius: 7.6

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7.51 AU - 7.55 AU

Year: 13342 Days

Day: 21.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 81.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,463,967 km

• M1: 94,546 km (0.078 R)
• M2: 812,765 km (0.097 R)
• M3: 1,233,135 km (0.089 R)
• M4: 1,612,964 km (0.12 R)
• M5: 1,902,586 km (0.108 R)
• M6: 2,793,441 km (0.106 R)
• M7: 3,452,420 km (0.088 R)
• M8: 3,753,560 km (0.105 R)
• M9: 4,673,886 km (0.094 R)
• M10: 5,946,216 km (0.065 R)
• M11: 7,938,710 km (0.1 R)
• M12: 9,735,530 km (0.071 R)
• M13: 10,597,663 km (0.083 R)
• M14: 19,883,651 km (0.1 R)
• M15: 21,350,907 km (0.062 R)
• M16: 21,602,232 km (0.105 R)
• M17: 27,447,918 km (0.08 R)
• M18: 27,944,733 km (0.108 R)
• M19: 31,051,731 km (0.054 R)
• M20: 31,482,722 km (0.085 R)
• M21: 36,132,823 km (0.099 R)
• M22: 37,697,766 km (0.061 R)
• M23: 39,685,174 km (0.102 R)
• M24: 40,833,337 km (0.106 R)
• M25: 44,138,403 km (0.097 R)
• M26: 47,049,129 km (0.094 R)
• M27: 47,332,916 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 161.9

Radius: 6.6

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 10.06 AU - 11.1 AU

Year: 22220 Days

Day: 20.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,463,967 km

• M1: 82,279 km (0.027 R)
• M2: 568,921 km (0.069 R)
• M3: 850,613 km (0.087 R)
• M4: 1,687,015 km (0.047 R)
• M5: 1,925,773 km (0.101 R)
• M6: 2,634,119 km (0.113 R)
• M7: 3,187,183 km (0.114 R)
• M8: 8,237,756 km (0.078 R)
• M9: 9,610,317 km (0.097 R)
• M10: 9,912,205 km (0.106 R)
• M11: 13,475,926 km (0.117 R)
• M12: 19,202,233 km (0.056 R)
• M13: 21,336,995 km (0.113 R)
• M14: 22,111,313 km (0.031 R)
• M15: 23,807,454 km (0.041 R)
• M16: 25,492,674 km (0.084 R)
• M17: 27,557,274 km (0.113 R)
• M18: 41,396,573 km (0.058 R)
• M19: 42,196,174 km (0.118 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: 522 - 13,811 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit