🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.15 AU - 3.23 AU

Year: 1596 Days

Day: 14.4 Hours

Environment

Temp: -101 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.99 AU - 4.13 AU

Year: 2429 Days

Day: 23.8 Hours

Environment

Temp: -112 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,690,968 km

• M1: 160,668 km (0.032 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.46 AU - 3.66 AU

Year: 2429 Days

Day: 30.3 Hours

Environment

Temp: -109 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.94 AU - 4.26 AU

Year: 3002 Days

Day: 29.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,690,968 km

• M1: 503,397 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.31 AU - 4.45 AU

Year: 3315 Days

Day: 43 Hours

Environment

Temp: -127 °C

Axial Tilt: 18.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.6

Radius: 12.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 5.81 AU - 6.79 AU

Year: 5719 Days

Day: 6.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 89,690,968 km

• M1: 159,172 km (0.12 R)
• M2: 1,698,983 km (0.104 R)
• M3: 2,866,744 km (0.109 R)
• M4: 3,329,001 km (0.12 R)
• M5: 7,600,918 km (0.058 R)
• M6: 8,297,147 km (0.084 R)
• M7: 9,456,381 km (0.117 R)
• M8: 10,149,767 km (0.095 R)
• M9: 13,674,891 km (0.101 R)
• M10: 15,637,166 km (0.117 R)
• M11: 16,607,458 km (0.087 R)
• M12: 17,455,379 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.8

Radius: 12.1

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 9.02 AU - 9.9 AU

Year: 10523 Days

Day: 7.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 89,690,968 km

• M1: 150,645 km (0.117 R)
• M2: 639,232 km (0.102 R)
• M3: 1,059,602 km (0.115 R)
• M4: 2,042,909 km (0.074 R)
• M5: 2,708,619 km (0.044 R)
• M6: 4,500,951 km (0.078 R)
• M7: 5,117,594 km (0.099 R)
• M8: 5,918,391 km (0.085 R)
• M9: 6,659,499 km (0.118 R)
• M10: 7,162,746 km (0.103 R)
• M11: 7,886,351 km (0.071 R)
• M12: 8,826,723 km (0.115 R)
• M13: 9,346,277 km (0.077 R)
• M14: 10,163,979 km (0.113 R)
• M15: 16,296,594 km (0.074 R)
• M16: 19,946,333 km (0.117 R)
• M17: 21,687,503 km (0.081 R)
• M18: 23,528,005 km (0.104 R)
• M19: 23,941,494 km (0.071 R)
• M20: 25,211,280 km (0.106 R)
• M21: 26,525,348 km (0.041 R)
• M22: 28,441,248 km (0.078 R)
• M23: 29,289,917 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.5

Radius: 10.9

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 9.55 AU - 9.59 AU

Year: 10707 Days

Day: 8.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 89,690,968 km

• M1: 158,424 km (0.03 R)
• M2: 738,864 km (0.061 R)
• M3: 1,521,560 km (0.114 R)
• M4: 1,874,761 km (0.11 R)
• M5: 2,956,353 km (0.113 R)
• M6: 4,872,253 km (0.116 R)
• M7: 5,653,304 km (0.079 R)
• M8: 8,117,180 km (0.102 R)
• M9: 8,544,731 km (0.098 R)
• M10: 10,308,191 km (0.065 R)
• M11: 11,275,640 km (0.059 R)
• M12: 11,646,942 km (0.075 R)
• M13: 15,045,656 km (0.049 R)
• M14: 15,431,170 km (0.102 R)
• M15: 16,021,932 km (0.032 R)
• M16: 18,831,829 km (0.109 R)
• M17: 22,618,600 km (0.092 R)
• M18: 24,160,804 km (0.082 R)
• M19: 30,416,837 km (0.115 R)
• M20: 32,081,413 km (0.067 R)
• M21: 33,586,966 km (0.104 R)
• M22: 36,507,266 km (0.036 R)
• M23: 39,714,794 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.5

Radius: 14.7

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.9 AU - 9.96 AU

Year: 11317 Days

Day: 14.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 89,690,968 km

• M1: 182,809 km (0.073 R)
• M2: 1,171,950 km (0.12 R)
• M3: 2,051,136 km (0.089 R)
• M4: 3,061,969 km (0.039 R)
• M5: 6,389,923 km (0.11 R)
• M6: 7,087,498 km (0.09 R)
• M7: 9,937,936 km (0.109 R)
• M8: 11,160,899 km (0.091 R)
• M9: 15,639,261 km (0.059 R)
• M10: 17,625,023 km (0.078 R)
• M11: 18,765,856 km (0.073 R)
• M12: 21,194,877 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 979

Radius: 4.4

Gravity: 50.57 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 15.01 AU - 15.37 AU

Year: 21410 Days

Day: 20.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 89,690,968 km

• M1: 54,902 km (0.092 R)
• M2: 815,757 km (0.092 R)
• M3: 1,685,370 km (0.068 R)
• M4: 1,878,500 km (0.057 R)
• M5: 2,086,292 km (0.082 R)
• M6: 3,485,331 km (0.061 R)
• M7: 4,934,486 km (0.041 R)
• M8: 5,412,900 km (0.111 R)
• M9: 7,690,228 km (0.078 R)
• M10: 8,168,493 km (0.093 R)
• M11: 10,154,853 km (0.108 R)
• M12: 11,462,189 km (0.077 R)
• M13: 11,667,437 km (0.119 R)
• M14: 14,326,539 km (0.061 R)
• M15: 15,049,396 km (0.061 R)
• M16: 15,378,362 km (0.077 R)
• M17: 16,221,645 km (0.109 R)
• M18: 17,273,917 km (0.091 R)
• M19: 19,127,135 km (0.119 R)
• M20: 24,444,591 km (0.049 R)
• M21: 27,013,935 km (0.029 R)
• M22: 27,377,757 km (0.09 R)
• M23: 28,363,756 km (0.08 R)
• M24: 28,613,884 km (0.096 R)
• M25: 29,629,205 km (0.103 R)
• M26: 37,418,018 km (0.117 R)
• M27: 38,938,680 km (0.046 R)
• M28: 39,093,065 km (0.078 R)
• M29: 41,940,661 km (0.113 R)
• M30: 42,428,350 km (0.058 R)
• M31: 48,222,425 km (0.089 R)
• M32: 52,992,951 km (0.097 R)
• M33: 54,521,842 km (0.112 R)
• M34: 56,473,795 km (0.111 R)
• M35: 57,068,446 km (0.108 R)
• M36: 58,877,084 km (0.067 R)
• M37: 61,976,004 km (0.118 R)
• M38: 63,245,492 km (0.109 R)
• M39: 66,936,221 km (0.117 R)
• M40: 70,309,653 km (0.108 R)
• M41: 76,422,222 km (0.067 R)
• M42: 79,607,161 km (0.101 R)
• M43: 89,690,955 km (0.112 R)

Kuiper Belt

Range: 30.3 - 56.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 17,432 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit