🌌 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: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.47 AU - 0.65 AU

Year: 271 Days

Day: 45.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.7

Radius: 10.8

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.81 AU - 0.87 AU

Year: 497 Days

Day: 13.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,644,073 km

• M1: 135,236 km (0.054 R)
• M2: 509,530 km (0.076 R)
• M3: 965,654 km (0.083 R)
• M4: 1,331,571 km (0.117 R)
• M5: 1,718,730 km (0.076 R)
• M6: 2,127,731 km (0.093 R)
• M7: 2,506,662 km (0.073 R)
• M8: 2,902,348 km (0.062 R)
• M9: 3,371,038 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767

Radius: 8.9

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.33 AU - 1.53 AU

Year: 1104 Days

Day: 6.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,644,073 km

• M1: 111,750 km (0.028 R)
• M2: 398,978 km (0.067 R)
• M3: 728,242 km (0.042 R)
• M4: 1,186,311 km (0.076 R)
• M5: 1,771,089 km (0.074 R)
• M6: 2,290,044 km (0.115 R)
• M7: 2,585,799 km (0.115 R)
• M8: 3,298,783 km (0.1 R)
• M9: 4,001,893 km (0.11 R)
• M10: 4,993,128 km (0.11 R)
• M11: 5,350,817 km (0.038 R)
• M12: 5,984,812 km (0.071 R)
• M13: 6,644,539 km (0.09 R)
• M14: 7,004,322 km (0.107 R)
• M15: 7,710,873 km (0.059 R)
• M16: 8,108,504 km (0.092 R)
• M17: 9,684,667 km (0.069 R)
• M18: 10,853,924 km (0.079 R)
• M19: 11,252,602 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.7

Radius: 14.3

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.31 AU - 1.99 AU

Year: 1368 Days

Day: 5.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,644,073 km

• M1: 180,565 km (0.1 R)
• M2: 688,898 km (0.054 R)
• M3: 1,159,832 km (0.117 R)
• M4: 1,708,408 km (0.115 R)
• M5: 2,157,650 km (0.113 R)
• M6: 2,877,964 km (0.085 R)
• M7: 4,084,620 km (0.05 R)
• M8: 5,785,847 km (0.07 R)
• M9: 6,897,958 km (0.05 R)
• M10: 8,587,217 km (0.078 R)
• M11: 9,966,958 km (0.111 R)
• M12: 11,819,877 km (0.112 R)
• M13: 12,847,615 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.5

Radius: 9.5

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.99 AU - 3.89 AU

Year: 4120 Days

Day: 8.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,644,073 km

• M1: 118,182 km (0.07 R)
• M2: 488,138 km (0.083 R)
• M3: 896,390 km (0.067 R)
• M4: 1,572,423 km (0.038 R)
• M5: 2,048,444 km (0.06 R)
• M6: 3,078,275 km (0.102 R)
• M7: 3,495,354 km (0.102 R)
• M8: 4,074,747 km (0.116 R)
• M9: 4,443,506 km (0.115 R)
• M10: 4,740,308 km (0.074 R)
• M11: 5,528,389 km (0.105 R)
• M12: 5,899,542 km (0.084 R)
• M13: 8,349,805 km (0.103 R)
• M14: 9,127,714 km (0.071 R)
• M15: 9,496,922 km (0.1 R)
• M16: 10,265,256 km (0.094 R)
• M17: 14,194,744 km (0.119 R)
• M18: 14,590,879 km (0.071 R)
• M19: 15,929,181 km (0.058 R)
• M20: 16,628,252 km (0.059 R)
• M21: 17,629,660 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.8

Radius: 13.6

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.23 AU - 4.11 AU

Year: 4540 Days

Day: 13.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,644,073 km

• M1: 169,345 km (0.12 R)
• M2: 704,456 km (0.108 R)
• M3: 1,316,760 km (0.093 R)
• M4: 1,856,210 km (0.112 R)
• M5: 2,591,783 km (0.088 R)
• M6: 3,535,596 km (0.029 R)
• M7: 4,099,281 km (0.096 R)
• M8: 6,816,876 km (0.103 R)
• M9: 8,015,753 km (0.077 R)
• M10: 9,270,430 km (0.093 R)
• M11: 13,002,000 km (0.079 R)
• M12: 14,676,150 km (0.111 R)
• M13: 16,489,874 km (0.119 R)
• M14: 20,422,204 km (0.117 R)
• M15: 22,315,365 km (0.076 R)
• M16: 23,565,853 km (0.086 R)
• M17: 24,018,237 km (0.111 R)
• M18: 26,045,737 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.2

Radius: 9.3

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.09 AU - 5.53 AU

Year: 6811 Days

Day: 12.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 61,644,073 km

• M1: 115,639 km (0.099 R)
• M2: 555,756 km (0.088 R)
• M3: 984,504 km (0.095 R)
• M4: 1,282,203 km (0.026 R)
• M5: 1,682,078 km (0.074 R)
• M6: 2,164,232 km (0.055 R)
• M7: 2,565,903 km (0.108 R)
• M8: 3,229,070 km (0.116 R)
• M9: 4,002,341 km (0.112 R)
• M10: 4,312,458 km (0.114 R)
• M11: 4,750,929 km (0.076 R)
• M12: 5,219,021 km (0.111 R)
• M13: 7,291,550 km (0.101 R)
• M14: 8,787,229 km (0.043 R)
• M15: 10,919,448 km (0.051 R)
• M16: 11,999,096 km (0.119 R)
• M17: 12,647,004 km (0.088 R)
• M18: 13,318,250 km (0.03 R)
• M19: 13,720,668 km (0.094 R)
• M20: 19,496,043 km (0.032 R)
• M21: 20,695,968 km (0.031 R)
• M22: 22,184,167 km (0.041 R)
• M23: 23,994,900 km (0.074 R)
• M24: 24,936,170 km (0.063 R)
• M25: 25,990,984 km (0.093 R)
• M26: 26,710,550 km (0.082 R)
• M27: 30,409,956 km (0.103 R)
• M28: 31,512,043 km (0.109 R)
• M29: 38,923,272 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.5

Radius: 8.4

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.77 AU - 4.97 AU

Year: 6939 Days

Day: 5.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 61,644,073 km

• M1: 104,419 km (0.112 R)
• M2: 451,786 km (0.07 R)
• M3: 1,005,148 km (0.097 R)
• M4: 1,388,268 km (0.091 R)
• M5: 2,483,325 km (0.091 R)
• M6: 2,847,745 km (0.113 R)
• M7: 3,582,121 km (0.082 R)
• M8: 3,983,043 km (0.116 R)
• M9: 4,925,360 km (0.106 R)
• M10: 5,368,170 km (0.078 R)
• M11: 6,243,766 km (0.115 R)
• M12: 6,607,140 km (0.1 R)
• M13: 7,277,188 km (0.036 R)
• M14: 8,530,071 km (0.096 R)
• M15: 9,839,950 km (0.095 R)
• M16: 10,125,532 km (0.094 R)
• M17: 10,670,517 km (0.08 R)
• M18: 11,059,023 km (0.114 R)
• M19: 14,569,037 km (0.106 R)
• M20: 15,372,378 km (0.051 R)
• M21: 15,757,293 km (0.119 R)
• M22: 17,243,548 km (0.092 R)
• M23: 18,634,210 km (0.069 R)
• M24: 19,452,510 km (0.093 R)
• M25: 20,360,270 km (0.076 R)
• M26: 20,958,512 km (0.102 R)
• M27: 21,296,005 km (0.097 R)
• M28: 21,981,762 km (0.062 R)
• M29: 23,542,217 km (0.104 R)
• M30: 25,556,403 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873.5

Radius: 7.4

Gravity: 15.95 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.39 AU - 7.51 AU

Year: 10577 Days

Day: 21.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 61,644,073 km

• M1: 94,097 km (0.066 R)
• M2: 455,675 km (0.118 R)
• M3: 1,352,215 km (0.103 R)
• M4: 1,873,713 km (0.118 R)
• M5: 2,342,703 km (0.116 R)
• M6: 3,287,413 km (0.09 R)
• M7: 4,256,359 km (0.104 R)
• M8: 5,938,287 km (0.089 R)
• M9: 6,947,325 km (0.095 R)
• M10: 7,449,675 km (0.115 R)
• M11: 8,340,680 km (0.106 R)
• M12: 13,369,711 km (0.099 R)
• M13: 14,412,408 km (0.09 R)
• M14: 20,704,495 km (0.045 R)
• M15: 21,393,393 km (0.058 R)
• M16: 22,545,446 km (0.097 R)
• M17: 23,644,991 km (0.071 R)
• M18: 25,069,162 km (0.063 R)
• M19: 26,049,776 km (0.064 R)
• M20: 26,348,972 km (0.078 R)
• M21: 26,650,412 km (0.119 R)
• M22: 27,055,822 km (0.066 R)
• M23: 33,760,051 km (0.113 R)
• M24: 34,354,253 km (0.103 R)
• M25: 38,451,589 km (0.062 R)
• M26: 40,018,926 km (0.119 R)
• M27: 41,628,300 km (0.067 R)
• M28: 42,037,301 km (0.11 R)
• M29: 42,586,774 km (0.091 R)
• M30: 43,700,081 km (0.077 R)
• M31: 53,475,255 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 397.5

Radius: 7

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 8.42 AU - 10.74 AU

Year: 19145 Days

Day: 22.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,644,073 km

• M1: 109,057 km (0.116 R)
• M2: 464,352 km (0.107 R)
• M3: 937,979 km (0.113 R)
• M4: 1,367,175 km (0.117 R)
• M5: 1,732,493 km (0.093 R)
• M6: 1,992,793 km (0.1 R)
• M7: 2,422,139 km (0.119 R)
• M8: 3,281,579 km (0.076 R)
• M9: 4,947,202 km (0.082 R)
• M10: 5,847,332 km (0.102 R)
• M11: 8,300,737 km (0.06 R)
• M12: 12,601,377 km (0.032 R)
• M13: 12,988,386 km (0.099 R)
• M14: 16,759,150 km (0.118 R)
• M15: 16,992,224 km (0.103 R)
• M16: 22,493,386 km (0.051 R)
• M17: 25,132,741 km (0.084 R)
• M18: 28,740,893 km (0.096 R)
• M19: 32,198,847 km (0.108 R)
• M20: 33,165,848 km (0.062 R)
• M21: 35,030,735 km (0.085 R)
• M22: 38,158,228 km (0.049 R)
• M23: 40,622,554 km (0.076 R)
• M24: 40,902,751 km (0.068 R)
• M25: 43,191,000 km (0.091 R)
• M26: 46,627,712 km (0.051 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 13,582 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit