🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.42 AU - 0.64 AU

Year: 138 Days

Day: 14.9 Hours

Environment

Temp: 249 °C

Axial Tilt: 12.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.63 AU - 2.13 AU

Year: 919 Days

Day: 28.7 Hours

Environment

Temp: -41 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.87 AU - 3.59 AU

Year: 2069 Days

Day: 23.5 Hours

Environment

Temp: -111 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.2

Radius: 10.2

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.56 AU - 6.96 AU

Year: 4928 Days

Day: 12.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,983,329 km

• M1: 139,575 km (0.045 R)
• M2: 904,469 km (0.089 R)
• M3: 1,475,035 km (0.114 R)
• M4: 1,970,054 km (0.12 R)
• M5: 4,905,613 km (0.113 R)
• M6: 5,524,649 km (0.12 R)
• M7: 5,926,469 km (0.107 R)
• M8: 6,534,435 km (0.091 R)
• M9: 7,910,287 km (0.029 R)
• M10: 9,551,375 km (0.112 R)
• M11: 13,189,147 km (0.111 R)
• M12: 14,709,061 km (0.057 R)
• M13: 15,148,131 km (0.062 R)
• M14: 17,537,209 km (0.088 R)
• M15: 19,437,251 km (0.108 R)
• M16: 27,746,216 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.7

Radius: 8.2

Gravity: 13.1 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.27 AU - 7.09 AU

Year: 5476 Days

Day: 5.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,983,329 km

• M1: 102,026 km (0.113 R)
• M2: 428,747 km (0.116 R)
• M3: 1,606,232 km (0.093 R)
• M4: 2,213,450 km (0.111 R)
• M5: 3,877,278 km (0.094 R)
• M6: 5,369,068 km (0.099 R)
• M7: 8,232,820 km (0.079 R)
• M8: 8,513,166 km (0.074 R)
• M9: 8,841,384 km (0.096 R)
• M10: 11,430,175 km (0.081 R)
• M11: 11,880,464 km (0.117 R)
• M12: 13,193,934 km (0.085 R)
• M13: 14,369,923 km (0.109 R)
• M14: 15,311,641 km (0.095 R)
• M15: 15,859,169 km (0.07 R)
• M16: 17,845,231 km (0.118 R)
• M17: 19,351,681 km (0.11 R)
• M18: 20,866,809 km (0.118 R)
• M19: 24,541,830 km (0.106 R)
• M20: 28,901,860 km (0.045 R)
• M21: 29,737,962 km (0.082 R)
• M22: 33,956,323 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.3

Radius: 8.9

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 7.02 AU - 7.36 AU

Year: 6872 Days

Day: 8.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,983,329 km

• M1: 110,852 km (0.11 R)
• M2: 416,480 km (0.075 R)
• M3: 863,329 km (0.113 R)
• M4: 2,136,258 km (0.077 R)
• M5: 2,428,572 km (0.09 R)
• M6: 3,877,577 km (0.067 R)
• M7: 4,478,212 km (0.092 R)
• M8: 6,030,589 km (0.094 R)
• M9: 6,910,225 km (0.088 R)
• M10: 7,208,972 km (0.096 R)
• M11: 7,634,129 km (0.11 R)
• M12: 8,323,775 km (0.068 R)
• M13: 8,966,298 km (0.117 R)
• M14: 11,194,558 km (0.112 R)
• M15: 12,300,386 km (0.076 R)
• M16: 12,851,953 km (0.058 R)
• M17: 14,302,903 km (0.096 R)
• M18: 15,476,349 km (0.105 R)
• M19: 16,054,095 km (0.077 R)
• M20: 19,087,940 km (0.115 R)
• M21: 20,128,244 km (0.09 R)
• M22: 22,159,783 km (0.041 R)
• M23: 23,142,043 km (0.069 R)
• M24: 24,669,437 km (0.101 R)
• M25: 25,369,405 km (0.104 R)
• M26: 27,084,844 km (0.051 R)
• M27: 29,948,746 km (0.082 R)
• M28: 32,276,788 km (0.069 R)
• M29: 37,979,608 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.5

Radius: 8.6

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.52 AU - 10.8 AU

Year: 9882 Days

Day: 11 Hours

Environment

Temp: -173 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,983,329 km

• M1: 109,954 km (0.095 R)
• M2: 505,790 km (0.114 R)
• M3: 897,587 km (0.087 R)
• M4: 2,078,214 km (0.09 R)
• M5: 2,972,061 km (0.069 R)
• M6: 4,300,789 km (0.082 R)
• M7: 5,161,875 km (0.069 R)
• M8: 5,633,407 km (0.116 R)
• M9: 5,987,505 km (0.118 R)
• M10: 6,898,556 km (0.067 R)
• M11: 7,180,847 km (0.08 R)
• M12: 7,470,918 km (0.085 R)
• M13: 9,040,947 km (0.078 R)
• M14: 9,477,923 km (0.076 R)
• M15: 13,434,038 km (0.064 R)
• M16: 13,875,352 km (0.079 R)
• M17: 16,442,452 km (0.113 R)
• M18: 18,064,990 km (0.093 R)
• M19: 18,525,452 km (0.117 R)
• M20: 19,151,519 km (0.111 R)
• M21: 20,694,921 km (0.112 R)
• M22: 29,460,309 km (0.099 R)
• M23: 30,098,344 km (0.056 R)
• M24: 35,779,024 km (0.052 R)
• M25: 36,872,285 km (0.064 R)
• M26: 38,616,746 km (0.064 R)
• M27: 41,071,347 km (0.089 R)
• M28: 43,354,061 km (0.091 R)
• M29: 46,432,038 km (0.037 R)
• M30: 49,652,730 km (0.043 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.1

Radius: 9.9

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.68 AU - 11.02 AU

Year: 11869 Days

Day: 12 Hours

Environment

Temp: -179 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,983,329 km

• M1: 127,308 km (0.075 R)
• M2: 536,308 km (0.098 R)
• M3: 885,320 km (0.112 R)
• M4: 1,427,463 km (0.112 R)
• M5: 1,857,706 km (0.088 R)
• M6: 2,180,090 km (0.044 R)
• M7: 3,177,758 km (0.046 R)
• M8: 4,127,555 km (0.112 R)
• M9: 4,511,273 km (0.104 R)
• M10: 5,576,111 km (0.034 R)
• M11: 6,046,148 km (0.116 R)
• M12: 7,697,558 km (0.062 R)
• M13: 9,442,767 km (0.102 R)
• M14: 10,558,019 km (0.04 R)
• M15: 11,437,206 km (0.072 R)
• M16: 12,533,160 km (0.086 R)
• M17: 12,875,290 km (0.085 R)
• M18: 15,124,494 km (0.112 R)
• M19: 15,840,769 km (0.08 R)
• M20: 19,233,649 km (0.075 R)
• M21: 22,324,939 km (0.115 R)
• M22: 23,510,951 km (0.11 R)
• M23: 24,828,011 km (0.031 R)
• M24: 25,277,702 km (0.076 R)
• M25: 25,824,482 km (0.068 R)
• M26: 30,078,447 km (0.074 R)
• M27: 32,800,081 km (0.077 R)
• M28: 34,554,266 km (0.026 R)
• M29: 34,889,963 km (0.07 R)
• M30: 38,487,792 km (0.112 R)
• M31: 40,314,382 km (0.116 R)
• M32: 40,935,961 km (0.077 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.6

Radius: 12.7

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 10.97 AU - 13.49 AU

Year: 15245 Days

Day: 8.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,983,329 km

• M1: 158,125 km (0.113 R)
• M2: 902,524 km (0.069 R)
• M3: 1,398,590 km (0.08 R)
• M4: 2,461,035 km (0.061 R)
• M5: 3,403,352 km (0.117 R)
• M6: 3,973,170 km (0.058 R)
• M7: 4,843,231 km (0.057 R)
• M8: 5,719,575 km (0.113 R)
• M9: 8,027,871 km (0.118 R)
• M10: 8,474,271 km (0.118 R)
• M11: 8,884,917 km (0.099 R)
• M12: 12,014,953 km (0.099 R)
• M13: 16,126,052 km (0.109 R)
• M14: 19,278,079 km (0.112 R)
• M15: 19,810,797 km (0.035 R)
• M16: 20,628,350 km (0.109 R)
• M17: 23,718,294 km (0.115 R)
• M18: 27,885,941 km (0.096 R)
• M19: 30,083,085 km (0.109 R)
• M20: 32,144,842 km (0.102 R)
• M21: 32,894,477 km (0.095 R)
• M22: 37,639,722 km (0.057 R)
• M23: 43,274,774 km (0.114 R)
• M24: 47,489,994 km (0.112 R)
• M25: 50,951,988 km (0.116 R)
• M26: 53,177,405 km (0.074 R)
• M27: 56,545,602 km (0.042 R)
• M28: 59,490,136 km (0.092 R)
• M29: 62,729,230 km (0.07 R)
• M30: 69,142,041 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 418.9

Radius: 3.2

Gravity: 40.91 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 16.23 AU - 18.71 AU

Year: 26028 Days

Day: 24.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,983,329 km

• M1: 123,867 km (0.073 R)
• M2: 575,952 km (0.108 R)
• M3: 722,259 km (0.104 R)
• M4: 837,000 km (0.053 R)
• M5: 939,774 km (0.052 R)
• M6: 2,656,858 km (0.039 R)
• M7: 4,065,023 km (0.104 R)
• M8: 4,362,573 km (0.085 R)
• M9: 4,890,654 km (0.12 R)
• M10: 10,921,243 km (0.075 R)
• M11: 13,336,351 km (0.087 R)
• M12: 13,770,634 km (0.067 R)
• M13: 14,974,896 km (0.109 R)
• M14: 16,659,668 km (0.088 R)
• M15: 17,333,307 km (0.112 R)
• M16: 21,073,104 km (0.096 R)
• M17: 22,362,488 km (0.03 R)
• M18: 41,539,589 km (0.056 R)
• M19: 46,794,214 km (0.099 R)
• M20: 47,126,172 km (0.046 R)
• M21: 48,469,860 km (0.109 R)
• M22: 52,117,953 km (0.064 R)
• M23: 63,337,943 km (0.113 R)
• M24: 73,125,534 km (0.084 R)

Kuiper Belt

Range: 30.8 - 49.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 14,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit