🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.93 AU - 1.21 AU

Year: 419 Days

Day: 18.7 Hours

Environment

Temp: 5 °C

Axial Tilt: 18 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.88 AU - 1.34 AU

Year: 443 Days

Day: 27.6 Hours

Environment

Temp: -11 °C

Axial Tilt: 49.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.87 AU - 1.41 AU

Year: 461 Days

Day: 46.3 Hours

Environment

Temp: -15 °C

Axial Tilt: 32.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.21 AU - 1.45 AU

Year: 581 Days

Day: 22.9 Hours

Environment

Temp: -42 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.6

Radius: 13

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.61 AU - 5.79 AU

Year: 5154 Days

Day: 11.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 100,193,327 km

• M1: 161,715 km (0.116 R)
• M2: 989,291 km (0.099 R)
• M3: 1,531,433 km (0.115 R)
• M4: 2,242,921 km (0.088 R)
• M5: 2,722,532 km (0.097 R)
• M6: 3,288,610 km (0.081 R)
• M7: 4,569,018 km (0.117 R)
• M8: 5,127,018 km (0.076 R)
• M9: 5,678,286 km (0.069 R)
• M10: 6,841,111 km (0.092 R)
• M11: 7,510,561 km (0.108 R)
• M12: 10,359,204 km (0.048 R)
• M13: 13,485,500 km (0.117 R)
• M14: 16,541,785 km (0.103 R)
• M15: 17,138,381 km (0.071 R)
• M16: 18,317,062 km (0.041 R)
• M17: 19,073,579 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.3

Radius: 12.8

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 7.41 AU - 7.63 AU

Year: 7810 Days

Day: 5.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 100,193,327 km

• M1: 159,172 km (0.08 R)
• M2: 629,358 km (0.059 R)
• M3: 1,162,974 km (0.08 R)
• M4: 1,570,478 km (0.032 R)
• M5: 2,075,521 km (0.088 R)
• M6: 2,669,724 km (0.055 R)
• M7: 3,466,183 km (0.087 R)
• M8: 4,524,887 km (0.038 R)
• M9: 5,919,887 km (0.075 R)
• M10: 7,122,953 km (0.077 R)
• M11: 8,272,613 km (0.055 R)
• M12: 13,541,001 km (0.082 R)
• M13: 14,191,153 km (0.107 R)
• M14: 14,800,316 km (0.095 R)
• M15: 18,611,471 km (0.081 R)
• M16: 19,713,858 km (0.027 R)
• M17: 20,781,687 km (0.045 R)
• M18: 21,408,951 km (0.057 R)
• M19: 23,535,186 km (0.099 R)
• M20: 24,562,474 km (0.047 R)
• M21: 24,999,300 km (0.068 R)
• M22: 25,619,533 km (0.083 R)
• M23: 26,340,894 km (0.117 R)
• M24: 29,953,982 km (0.103 R)
• M25: 31,982,529 km (0.113 R)
• M26: 33,349,105 km (0.08 R)
• M27: 38,969,946 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 655.2

Radius: 5.6

Gravity: 20.89 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 12.82 AU - 13.58 AU

Year: 18164 Days

Day: 24.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 100,193,327 km

• M1: 81,980 km (0.082 R)
• M2: 302,038 km (0.099 R)
• M3: 648,507 km (0.062 R)
• M4: 848,519 km (0.056 R)
• M5: 1,644,829 km (0.111 R)
• M6: 2,102,000 km (0.113 R)
• M7: 3,656,322 km (0.096 R)
• M8: 4,701,113 km (0.109 R)
• M9: 4,981,759 km (0.107 R)
• M10: 5,348,124 km (0.038 R)
• M11: 5,851,072 km (0.063 R)
• M12: 7,408,535 km (0.05 R)
• M13: 9,223,307 km (0.109 R)
• M14: 9,832,170 km (0.085 R)
• M15: 11,947,784 km (0.07 R)
• M16: 12,940,814 km (0.063 R)
• M17: 16,169,585 km (0.111 R)
• M18: 17,548,877 km (0.111 R)
• M19: 19,092,877 km (0.107 R)
• M20: 19,447,873 km (0.051 R)
• M21: 20,539,339 km (0.092 R)
• M22: 20,911,987 km (0.11 R)
• M23: 24,264,625 km (0.068 R)
• M24: 25,208,438 km (0.08 R)
• M25: 37,121,066 km (0.105 R)
• M26: 40,814,189 km (0.113 R)
• M27: 41,255,353 km (0.119 R)
• M28: 44,589,141 km (0.116 R)
• M29: 46,481,106 km (0.105 R)
• M30: 47,771,686 km (0.112 R)
• M31: 48,425,878 km (0.053 R)
• M32: 51,443,865 km (0.051 R)
• M33: 54,762,993 km (0.066 R)
• M34: 56,020,962 km (0.039 R)
• M35: 59,155,935 km (0.113 R)
• M36: 67,603,577 km (0.091 R)
• M37: 68,635,204 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.9

Radius: 4.8

Gravity: 26.25 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 10.8 AU - 17.4 AU

Year: 20053 Days

Day: 17.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 100,193,327 km

• M1: 67,768 km (0.101 R)
• M2: 376,089 km (0.107 R)
• M3: 925,712 km (0.094 R)
• M4: 1,530,087 km (0.09 R)
• M5: 2,072,230 km (0.094 R)
• M6: 2,257,581 km (0.104 R)
• M7: 3,760,741 km (0.113 R)
• M8: 4,294,805 km (0.117 R)
• M9: 5,950,555 km (0.1 R)
• M10: 11,953,019 km (0.101 R)
• M11: 13,238,364 km (0.096 R)
• M12: 14,316,217 km (0.115 R)
• M13: 16,240,345 km (0.108 R)
• M14: 22,832,525 km (0.12 R)
• M15: 25,991,134 km (0.102 R)
• M16: 26,544,497 km (0.05 R)
• M17: 34,601,090 km (0.047 R)
• M18: 38,747,494 km (0.104 R)
• M19: 49,853,640 km (0.079 R)
• M20: 51,918,539 km (0.106 R)
• M21: 70,528,814 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772

Radius: 4.2

Gravity: 43.76 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 17.47 AU - 18.15 AU

Year: 28467 Days

Day: 17.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 100,193,327 km

• M1: 56,847 km (0.06 R)
• M2: 204,500 km (0.101 R)
• M3: 432,338 km (0.1 R)
• M4: 817,852 km (0.058 R)
• M5: 979,567 km (0.112 R)
• M6: 1,270,684 km (0.073 R)
• M7: 1,506,899 km (0.082 R)
• M8: 1,693,298 km (0.064 R)
• M9: 1,915,750 km (0.095 R)
• M10: 2,321,909 km (0.057 R)
• M11: 4,962,012 km (0.104 R)
• M12: 5,460,921 km (0.098 R)
• M13: 6,461,282 km (0.1 R)
• M14: 6,704,677 km (0.058 R)
• M15: 9,056,505 km (0.059 R)
• M16: 11,266,066 km (0.087 R)
• M17: 12,494,863 km (0.057 R)
• M18: 12,645,059 km (0.103 R)
• M19: 13,971,095 km (0.036 R)
• M20: 15,215,599 km (0.074 R)
• M21: 16,173,923 km (0.093 R)
• M22: 23,232,400 km (0.116 R)
• M23: 24,500,690 km (0.104 R)
• M24: 26,303,644 km (0.079 R)
• M25: 27,808,150 km (0.095 R)
• M26: 32,239,538 km (0.103 R)
• M27: 40,631,829 km (0.08 R)
• M28: 40,961,692 km (0.044 R)
• M29: 41,127,297 km (0.095 R)
• M30: 53,468,673 km (0.078 R)
• M31: 63,969,994 km (0.071 R)
• M32: 64,193,045 km (0.11 R)
• M33: 71,604,722 km (0.087 R)
• M34: 79,309,162 km (0.039 R)
• M35: 93,154,893 km (0.117 R)
• M36: 96,924,909 km (0.079 R)
• M37: 97,219,019 km (0.094 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: 290 - 17,382 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit