🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.03 AU - 1.27 AU

Year: 446 Days

Day: 21 Hours

Environment

Temp: 3 °C

Axial Tilt: 34.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 81,128,340 km

• M1: 56,249 km (0.079 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.02 AU - 1.42 AU

Year: 487 Days

Day: 39.6 Hours

Environment

Temp: 7 °C

Axial Tilt: 123.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.25 AU - 1.99 AU

Year: 746 Days

Day: 44.8 Hours

Environment

Temp: -38 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.51 AU - 3.87 AU

Year: 2061 Days

Day: 22.8 Hours

Environment

Temp: -105 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,128,340 km

• M1: 109,954 km (0.11 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.85 AU - 4.47 AU

Year: 2532 Days

Day: 16.3 Hours

Environment

Temp: -108 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,128,340 km

• M1: 1,335,460 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.9

Radius: 12.6

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.18 AU - 8.7 AU

Year: 7339 Days

Day: 8.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,128,340 km

• M1: 156,629 km (0.042 R)
• M2: 692,489 km (0.116 R)
• M3: 1,108,371 km (0.091 R)
• M4: 1,502,112 km (0.095 R)
• M5: 2,305,752 km (0.083 R)
• M6: 3,037,136 km (0.119 R)
• M7: 3,478,001 km (0.054 R)
• M8: 3,939,810 km (0.094 R)
• M9: 4,348,062 km (0.075 R)
• M10: 5,633,856 km (0.11 R)
• M11: 6,274,284 km (0.115 R)
• M12: 7,125,945 km (0.059 R)
• M13: 10,964,178 km (0.096 R)
• M14: 11,593,685 km (0.091 R)
• M15: 13,781,405 km (0.034 R)
• M16: 15,219,040 km (0.09 R)
• M17: 19,215,846 km (0.103 R)
• M18: 20,600,225 km (0.111 R)
• M19: 21,559,447 km (0.091 R)
• M20: 23,272,791 km (0.114 R)
• M21: 24,464,338 km (0.112 R)
• M22: 26,566,787 km (0.104 R)
• M23: 27,212,301 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320

Radius: 12.3

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.4 AU - 9.1 AU

Year: 8570 Days

Day: 13.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,128,340 km

• M1: 153,039 km (0.089 R)
• M2: 668,702 km (0.037 R)
• M3: 1,278,613 km (0.045 R)
• M4: 1,844,991 km (0.056 R)
• M5: 2,258,778 km (0.119 R)
• M6: 2,790,299 km (0.111 R)
• M7: 3,299,381 km (0.047 R)
• M8: 6,306,448 km (0.058 R)
• M9: 8,152,336 km (0.061 R)
• M10: 8,625,065 km (0.107 R)
• M11: 11,463,386 km (0.063 R)
• M12: 11,957,358 km (0.11 R)
• M13: 13,308,077 km (0.089 R)
• M14: 14,357,805 km (0.1 R)
• M15: 14,932,111 km (0.099 R)
• M16: 16,684,501 km (0.055 R)
• M17: 17,577,899 km (0.112 R)
• M18: 18,102,539 km (0.111 R)
• M19: 23,621,653 km (0.083 R)
• M20: 26,934,199 km (0.088 R)
• M21: 30,169,851 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.6

Radius: 5.1

Gravity: 16.29 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 16.93 AU - 17.91 AU

Year: 26294 Days

Day: 18.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,128,340 km

• M1: 64,028 km (0.112 R)
• M2: 290,669 km (0.11 R)
• M3: 1,124,677 km (0.077 R)
• M4: 1,825,244 km (0.092 R)
• M5: 2,141,344 km (0.113 R)
• M6: 2,334,624 km (0.119 R)
• M7: 2,707,273 km (0.059 R)
• M8: 4,817,799 km (0.07 R)
• M9: 11,636,171 km (0.076 R)
• M10: 30,928,761 km (0.11 R)
• M11: 40,916,962 km (0.114 R)
• M12: 42,299,097 km (0.064 R)
• M13: 46,964,157 km (0.111 R)
• M14: 48,139,398 km (0.069 R)
• M15: 51,251,333 km (0.106 R)
• M16: 52,317,667 km (0.116 R)
• M17: 53,580,422 km (0.097 R)
• M18: 63,399,278 km (0.037 R)
• M19: 66,710,328 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.9

Radius: 4

Gravity: 22.49 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 18.01 AU - 20.35 AU

Year: 30378 Days

Day: 18.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,128,340 km

• M1: 49,816 km (0.09 R)
• M2: 317,895 km (0.104 R)
• M3: 491,728 km (0.038 R)
• M4: 948,899 km (0.096 R)
• M5: 1,088,624 km (0.11 R)
• M6: 1,442,123 km (0.103 R)
• M7: 1,773,034 km (0.12 R)
• M8: 3,016,791 km (0.098 R)
• M9: 3,408,139 km (0.025 R)
• M10: 3,707,783 km (0.104 R)
• M11: 4,189,937 km (0.116 R)
• M12: 4,569,317 km (0.066 R)
• M13: 5,802,901 km (0.081 R)
• M14: 6,317,817 km (0.111 R)
• M15: 6,495,988 km (0.109 R)
• M16: 6,956,301 km (0.095 R)
• M17: 8,149,344 km (0.096 R)
• M18: 9,705,910 km (0.069 R)
• M19: 12,745,888 km (0.077 R)
• M20: 19,093,924 km (0.115 R)
• M21: 20,034,895 km (0.052 R)
• M22: 31,850,583 km (0.114 R)
• M23: 33,306,021 km (0.036 R)
• M24: 34,529,133 km (0.099 R)
• M25: 35,782,015 km (0.06 R)
• M26: 44,590,488 km (0.103 R)
• M27: 51,980,922 km (0.105 R)
• M28: 54,739,357 km (0.112 R)
• M29: 62,364,809 km (0.07 R)
• M30: 67,177,672 km (0.082 R)
• M31: 67,392,345 km (0.109 R)
• M32: 69,784,265 km (0.105 R)
• M33: 70,446,236 km (0.093 R)
• M34: 72,909,514 km (0.094 R)
• M35: 78,244,324 km (0.092 R)

Kuiper Belt

Range: 30.3 - 53.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 15,833 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit