🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.8

Radius: 14

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.58 AU - 0.64 AU

Year: 318 Days

Day: 9.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,208,284 km

• M1: 174,132 km (0.116 R)
• M2: 651,200 km (0.066 R)
• M3: 1,470,996 km (0.111 R)
• M4: 2,219,434 km (0.09 R)
• M5: 2,905,490 km (0.051 R)
• M6: 3,551,154 km (0.11 R)
• M7: 4,467,740 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.8

Radius: 9.5

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.95 AU - 1.25 AU

Year: 769 Days

Day: 5.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,208,284 km

• M1: 125,064 km (0.119 R)
• M2: 502,948 km (0.1 R)
• M3: 887,265 km (0.082 R)
• M4: 1,188,106 km (0.052 R)
• M5: 1,745,059 km (0.081 R)
• M6: 2,448,020 km (0.11 R)
• M7: 3,172,971 km (0.041 R)
• M8: 3,965,241 km (0.117 R)
• M9: 4,452,781 km (0.116 R)
• M10: 5,582,693 km (0.117 R)

Asteroid Belt

Center: 1.67 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.4

Radius: 11.3

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.03 AU - 2.43 AU

Year: 2221 Days

Day: 7.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,208,284 km

• M1: 140,472 km (0.12 R)
• M2: 603,478 km (0.099 R)
• M3: 965,355 km (0.049 R)
• M4: 1,498,522 km (0.094 R)
• M5: 1,857,557 km (0.119 R)
• M6: 2,328,192 km (0.101 R)
• M7: 2,754,994 km (0.057 R)
• M8: 3,825,068 km (0.099 R)
• M9: 4,197,118 km (0.099 R)
• M10: 4,812,115 km (0.111 R)
• M11: 6,169,566 km (0.079 R)
• M12: 7,051,894 km (0.066 R)
• M13: 7,798,238 km (0.066 R)
• M14: 8,695,675 km (0.116 R)
• M15: 9,238,716 km (0.108 R)
• M16: 12,597,188 km (0.1 R)
• M17: 14,714,297 km (0.106 R)
• M18: 17,964,759 km (0.097 R)
• M19: 18,734,740 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.8

Radius: 11.9

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.54 AU - 2.9 AU

Year: 2991 Days

Day: 12.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,208,284 km

• M1: 147,952 km (0.092 R)
• M2: 544,985 km (0.105 R)
• M3: 961,017 km (0.069 R)
• M4: 1,846,786 km (0.093 R)
• M5: 2,313,681 km (0.117 R)
• M6: 2,730,760 km (0.119 R)
• M7: 3,396,320 km (0.097 R)
• M8: 3,878,026 km (0.052 R)
• M9: 4,674,933 km (0.1 R)
• M10: 5,173,992 km (0.11 R)
• M11: 5,761,164 km (0.091 R)
• M12: 6,948,372 km (0.057 R)
• M13: 7,600,021 km (0.075 R)
• M14: 8,601,279 km (0.087 R)
• M15: 9,650,708 km (0.1 R)
• M16: 11,530,256 km (0.036 R)
• M17: 14,074,766 km (0.035 R)
• M18: 14,815,276 km (0.098 R)
• M19: 17,083,030 km (0.058 R)
• M20: 19,938,853 km (0.097 R)
• M21: 21,063,530 km (0.116 R)
• M22: 21,512,174 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 10.2

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.78 AU - 4.98 AU

Year: 7189 Days

Day: 11.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,208,284 km

• M1: 155,133 km (0.111 R)
• M2: 616,942 km (0.093 R)
• M3: 1,054,515 km (0.051 R)
• M4: 1,396,347 km (0.087 R)
• M5: 3,315,687 km (0.096 R)
• M6: 5,015,269 km (0.072 R)
• M7: 8,554,904 km (0.118 R)
• M8: 11,363,903 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429

Radius: 12

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 4.82 AU - 6.32 AU

Year: 8766 Days

Day: 11.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,208,284 km

• M1: 158,574 km (0.114 R)
• M2: 536,907 km (0.061 R)
• M3: 1,865,934 km (0.119 R)
• M4: 2,267,754 km (0.079 R)
• M5: 3,935,322 km (0.12 R)
• M6: 5,532,279 km (0.119 R)
• M7: 6,969,166 km (0.048 R)
• M8: 8,393,338 km (0.064 R)
• M9: 9,549,131 km (0.088 R)
• M10: 11,758,393 km (0.075 R)
• M11: 12,440,110 km (0.092 R)
• M12: 15,807,409 km (0.098 R)
• M13: 16,315,144 km (0.114 R)
• M14: 17,097,241 km (0.114 R)
• M15: 20,702,849 km (0.119 R)
• M16: 24,956,814 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.1

Radius: 7.5

Gravity: 15.63 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 5.89 AU - 7.19 AU

Year: 11153 Days

Day: 24.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,208,284 km

• M1: 93,499 km (0.03 R)
• M2: 738,864 km (0.062 R)
• M3: 1,775,577 km (0.099 R)
• M4: 2,350,183 km (0.05 R)
• M5: 3,947,888 km (0.062 R)
• M6: 4,922,668 km (0.076 R)
• M7: 5,292,174 km (0.057 R)
• M8: 5,572,521 km (0.113 R)
• M9: 5,825,939 km (0.043 R)
• M10: 6,317,069 km (0.114 R)
• M11: 7,000,582 km (0.044 R)
• M12: 7,643,703 km (0.078 R)
• M13: 8,232,520 km (0.117 R)
• M14: 8,561,785 km (0.072 R)
• M15: 9,449,050 km (0.072 R)
• M16: 12,173,527 km (0.098 R)
• M17: 12,850,158 km (0.112 R)
• M18: 13,102,380 km (0.066 R)
• M19: 15,240,582 km (0.07 R)
• M20: 16,763,937 km (0.026 R)
• M21: 26,633,657 km (0.083 R)
• M22: 27,667,528 km (0.112 R)
• M23: 29,705,350 km (0.115 R)
• M24: 33,598,036 km (0.107 R)
• M25: 35,790,393 km (0.105 R)
• M26: 37,560,136 km (0.077 R)
• M27: 38,728,196 km (0.092 R)
• M28: 39,122,835 km (0.057 R)
• M29: 40,592,933 km (0.118 R)
• M30: 53,541,377 km (0.075 R)
• M31: 55,352,110 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.4

Radius: 7.9

Gravity: 10.08 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 8.29 AU - 8.99 AU

Year: 16936 Days

Day: 20.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,208,284 km

• M1: 98,286 km (0.054 R)
• M2: 349,161 km (0.104 R)
• M3: 967,150 km (0.102 R)
• M4: 1,612,515 km (0.118 R)
• M5: 2,539,424 km (0.066 R)
• M6: 2,908,482 km (0.106 R)
• M7: 4,588,316 km (0.059 R)
• M8: 5,615,306 km (0.092 R)
• M9: 7,363,955 km (0.055 R)
• M10: 7,923,750 km (0.054 R)
• M11: 8,362,072 km (0.082 R)
• M12: 8,816,251 km (0.093 R)
• M13: 9,075,804 km (0.076 R)
• M14: 11,522,626 km (0.118 R)
• M15: 16,393,832 km (0.096 R)
• M16: 18,170,008 km (0.118 R)
• M17: 20,611,445 km (0.09 R)
• M18: 26,348,224 km (0.086 R)
• M19: 27,434,305 km (0.101 R)
• M20: 27,876,965 km (0.12 R)
• M21: 33,441,407 km (0.1 R)
• M22: 33,693,330 km (0.062 R)
• M23: 34,328,822 km (0.099 R)
• M24: 39,422,031 km (0.099 R)
• M25: 51,577,307 km (0.061 R)
• M26: 64,244,806 km (0.063 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 542 - 18,161 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit