🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.61 AU - 0.71 AU

Year: 352 Days

Day: 15.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.63 AU - 0.69 AU

Year: 352 Days

Day: 37.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.7

Radius: 11.5

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.83 AU - 0.97 AU

Year: 560 Days

Day: 11.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,021,109 km

• M1: 143,165 km (0.067 R)
• M2: 550,071 km (0.084 R)
• M3: 931,845 km (0.056 R)
• M4: 1,347,727 km (0.055 R)
• M5: 1,957,339 km (0.067 R)
• M6: 2,426,926 km (0.071 R)
• M7: 3,137,965 km (0.1 R)
• M8: 3,595,884 km (0.098 R)
• M9: 4,011,467 km (0.082 R)
• M10: 4,824,831 km (0.045 R)
• M11: 5,491,139 km (0.05 R)
• M12: 5,856,158 km (0.062 R)
• M13: 6,574,378 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.3

Radius: 12.7

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.51 AU - 1.79 AU

Year: 1390 Days

Day: 13.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,021,109 km

• M1: 157,975 km (0.104 R)
• M2: 554,111 km (0.086 R)
• M3: 1,036,414 km (0.093 R)
• M4: 1,466,957 km (0.08 R)
• M5: 2,489,757 km (0.116 R)
• M6: 3,549,509 km (0.108 R)
• M7: 4,006,979 km (0.076 R)
• M8: 5,139,136 km (0.087 R)
• M9: 6,542,812 km (0.059 R)
• M10: 7,039,178 km (0.095 R)
• M11: 7,948,733 km (0.095 R)
• M12: 10,156,349 km (0.114 R)
• M13: 10,694,004 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.2

Radius: 9.5

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.22 AU - 2.42 AU

Year: 2318 Days

Day: 8 Hours

Environment

Temp: -196 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,021,109 km

• M1: 118,182 km (0.104 R)
• M2: 625,020 km (0.095 R)
• M3: 993,928 km (0.07 R)
• M4: 1,453,792 km (0.118 R)
• M5: 1,860,998 km (0.111 R)
• M6: 2,268,053 km (0.083 R)
• M7: 2,762,325 km (0.101 R)
• M8: 3,459,152 km (0.076 R)
• M9: 5,514,926 km (0.097 R)
• M10: 7,069,995 km (0.104 R)
• M11: 7,802,277 km (0.075 R)
• M12: 9,058,450 km (0.061 R)
• M13: 9,450,397 km (0.119 R)
• M14: 13,379,435 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.6

Radius: 13.3

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.51 AU - 3.33 AU

Year: 3273 Days

Day: 13.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,021,109 km

• M1: 165,455 km (0.105 R)
• M2: 592,707 km (0.108 R)
• M3: 1,775,128 km (0.099 R)
• M4: 2,252,944 km (0.119 R)
• M5: 3,278,886 km (0.109 R)
• M6: 3,908,544 km (0.099 R)
• M7: 5,097,697 km (0.119 R)
• M8: 6,713,204 km (0.067 R)
• M9: 8,479,207 km (0.093 R)
• M10: 10,537,225 km (0.103 R)
• M11: 12,688,293 km (0.082 R)
• M12: 13,681,174 km (0.108 R)
• M13: 15,217,095 km (0.102 R)
• M14: 16,233,912 km (0.102 R)
• M15: 19,089,137 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 280.6

Radius: 4.5

Gravity: 13.86 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.75 AU - 9.33 AU

Year: 14955 Days

Day: 15.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,021,109 km

• M1: 55,950 km (0.052 R)
• M2: 748,139 km (0.071 R)
• M3: 3,099,369 km (0.043 R)
• M4: 3,500,889 km (0.108 R)
• M5: 3,830,902 km (0.116 R)
• M6: 5,493,084 km (0.059 R)
• M7: 6,224,019 km (0.056 R)
• M8: 7,136,417 km (0.077 R)
• M9: 9,557,359 km (0.051 R)
• M10: 10,403,934 km (0.11 R)
• M11: 11,682,846 km (0.097 R)
• M12: 16,698,264 km (0.115 R)
• M13: 21,868,366 km (0.061 R)
• M14: 26,547,189 km (0.079 R)
• M15: 29,425,752 km (0.105 R)
• M16: 32,177,455 km (0.11 R)
• M17: 38,308,275 km (0.048 R)
• M18: 39,671,411 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 767.6

Radius: 6.4

Gravity: 18.74 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 7.77 AU - 9.77 AU

Year: 17038 Days

Day: 20.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,021,109 km

• M1: 79,586 km (0.114 R)
• M2: 338,690 km (0.115 R)
• M3: 558,598 km (0.079 R)
• M4: 1,938,190 km (0.107 R)
• M5: 2,699,194 km (0.025 R)
• M6: 3,226,676 km (0.113 R)
• M7: 4,619,881 km (0.087 R)
• M8: 5,040,850 km (0.109 R)
• M9: 6,674,309 km (0.116 R)
• M10: 8,273,361 km (0.053 R)
• M11: 8,841,234 km (0.08 R)
• M12: 10,761,173 km (0.103 R)
• M13: 11,374,973 km (0.1 R)
• M14: 15,556,683 km (0.103 R)
• M15: 16,024,176 km (0.119 R)
• M16: 16,261,289 km (0.083 R)
• M17: 19,832,938 km (0.088 R)
• M18: 23,997,742 km (0.081 R)
• M19: 26,338,351 km (0.051 R)
• M20: 26,890,666 km (0.064 R)
• M21: 30,368,667 km (0.111 R)
• M22: 33,874,643 km (0.036 R)
• M23: 37,920,667 km (0.054 R)
• M24: 47,279,659 km (0.085 R)
• M25: 55,320,844 km (0.057 R)
• M26: 55,863,136 km (0.059 R)
• M27: 57,881,361 km (0.095 R)
• M28: 58,814,702 km (0.086 R)
• M29: 61,674,565 km (0.119 R)
• M30: 67,670,148 km (0.09 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: 407 - 10,971 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit