🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.72 AU - 0.96 AU

Year: 293 Days

Day: 46.6 Hours

Environment

Temp: 28 °C

Axial Tilt: 10.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.46 AU - 1.68 AU

Year: 749 Days

Day: 27.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 66.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.28 AU - 1.88 AU

Year: 756 Days

Day: 13.6 Hours

Environment

Temp: -49 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.54 AU - 2.22 AU

Year: 982 Days

Day: 37.9 Hours

Environment

Temp: -74 °C

Axial Tilt: 29.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.76 AU - 3.14 AU

Year: 1929 Days

Day: 37.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.76 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.9

Radius: 9.5

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.04 AU - 5.08 AU

Year: 3708 Days

Day: 9.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 92,259,885 km

• M1: 119,080 km (0.086 R)
• M2: 737,069 km (0.078 R)
• M3: 1,037,012 km (0.088 R)
• M4: 1,612,366 km (0.107 R)
• M5: 2,311,437 km (0.081 R)
• M6: 5,227,698 km (0.084 R)
• M7: 5,527,043 km (0.1 R)
• M8: 6,557,174 km (0.086 R)
• M9: 6,970,812 km (0.058 R)
• M10: 7,435,613 km (0.109 R)
• M11: 11,745,677 km (0.119 R)
• M12: 13,337,847 km (0.085 R)
• M13: 14,212,097 km (0.098 R)
• M14: 15,344,104 km (0.097 R)
• M15: 16,017,444 km (0.117 R)
• M16: 20,143,952 km (0.113 R)
• M17: 23,355,519 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.8

Radius: 13

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.99 AU - 8.83 AU

Year: 7681 Days

Day: 12.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 92,259,885 km

• M1: 161,715 km (0.107 R)
• M2: 645,066 km (0.068 R)
• M3: 1,136,944 km (0.053 R)
• M4: 2,107,984 km (0.078 R)
• M5: 2,792,843 km (0.083 R)
• M6: 3,671,132 km (0.119 R)
• M7: 4,108,257 km (0.092 R)
• M8: 5,437,284 km (0.053 R)
• M9: 6,544,608 km (0.065 R)
• M10: 7,673,174 km (0.119 R)
• M11: 9,437,531 km (0.053 R)
• M12: 10,669,619 km (0.029 R)
• M13: 12,686,049 km (0.108 R)
• M14: 13,094,302 km (0.115 R)
• M15: 14,945,126 km (0.099 R)
• M16: 17,966,704 km (0.044 R)
• M17: 31,414,805 km (0.109 R)
• M18: 32,163,991 km (0.061 R)
• M19: 33,809,418 km (0.06 R)
• M20: 38,592,959 km (0.034 R)
• M21: 40,576,029 km (0.077 R)
• M22: 41,464,790 km (0.058 R)
• M23: 42,496,267 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.3

Radius: 13.8

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 10.07 AU - 12.73 AU

Year: 14657 Days

Day: 8.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 92,259,885 km

• M1: 171,738 km (0.067 R)
• M2: 848,519 km (0.089 R)
• M3: 1,384,678 km (0.067 R)
• M4: 2,323,405 km (0.082 R)
• M5: 5,966,711 km (0.111 R)
• M6: 6,777,980 km (0.08 R)
• M7: 8,324,972 km (0.087 R)
• M8: 9,077,898 km (0.117 R)
• M9: 9,875,853 km (0.101 R)
• M10: 11,857,875 km (0.113 R)
• M11: 13,207,398 km (0.036 R)
• M12: 13,954,041 km (0.05 R)
• M13: 14,585,792 km (0.081 R)
• M14: 15,383,747 km (0.119 R)
• M15: 16,596,089 km (0.096 R)
• M16: 19,555,882 km (0.045 R)
• M17: 20,347,554 km (0.097 R)
• M18: 27,144,534 km (0.11 R)
• M19: 28,352,088 km (0.1 R)
• M20: 32,190,021 km (0.108 R)
• M21: 33,667,450 km (0.103 R)
• M22: 36,757,543 km (0.08 R)
• M23: 41,884,711 km (0.104 R)
• M24: 44,694,159 km (0.076 R)
• M25: 50,521,894 km (0.076 R)
• M26: 52,179,887 km (0.08 R)
• M27: 55,779,212 km (0.112 R)
• M28: 60,276,124 km (0.108 R)
• M29: 64,428,512 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.6

Radius: 3.1

Gravity: 14.32 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 12.52 AU - 13.56 AU

Year: 17931 Days

Day: 19.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 92,259,885 km

• M1: 115,639 km (0.09 R)
• M2: 411,095 km (0.08 R)
• M3: 669,899 km (0.118 R)
• M4: 835,355 km (0.11 R)
• M5: 1,357,152 km (0.062 R)
• M6: 2,274,336 km (0.101 R)
• M7: 3,785,574 km (0.09 R)
• M8: 4,474,921 km (0.114 R)
• M9: 9,250,833 km (0.081 R)
• M10: 10,290,987 km (0.078 R)
• M11: 14,237,080 km (0.116 R)
• M12: 28,537,589 km (0.042 R)
• M13: 34,861,241 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 542.5

Radius: 4.5

Gravity: 26.79 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 15.97 AU - 20.79 AU

Year: 30006 Days

Day: 21.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 92,259,885 km

• M1: 57,595 km (0.086 R)
• M2: 314,455 km (0.111 R)
• M3: 593,754 km (0.05 R)
• M4: 827,276 km (0.079 R)
• M5: 1,514,080 km (0.088 R)
• M6: 2,058,467 km (0.092 R)
• M7: 2,447,272 km (0.092 R)
• M8: 2,723,878 km (0.09 R)
• M9: 3,616,379 km (0.111 R)
• M10: 3,776,748 km (0.03 R)
• M11: 3,941,754 km (0.069 R)
• M12: 4,918,329 km (0.055 R)
• M13: 5,441,623 km (0.106 R)
• M14: 5,956,987 km (0.085 R)
• M15: 6,272,340 km (0.072 R)
• M16: 6,504,216 km (0.098 R)
• M17: 12,286,922 km (0.093 R)
• M18: 13,321,990 km (0.105 R)
• M19: 14,017,470 km (0.11 R)
• M20: 16,863,270 km (0.116 R)
• M21: 18,326,637 km (0.111 R)
• M22: 25,494,469 km (0.109 R)
• M23: 26,085,231 km (0.065 R)
• M24: 32,364,452 km (0.11 R)
• M25: 34,042,491 km (0.095 R)
• M26: 45,171,675 km (0.039 R)
• M27: 46,384,765 km (0.094 R)
• M28: 48,875,719 km (0.038 R)
• M29: 50,708,442 km (0.069 R)
• M30: 51,080,492 km (0.087 R)
• M31: 52,018,471 km (0.03 R)
• M32: 57,685,837 km (0.119 R)
• M33: 57,888,242 km (0.087 R)
• M34: 62,462,945 km (0.106 R)
• M35: 67,947,054 km (0.115 R)
• M36: 79,860,579 km (0.094 R)
• M37: 82,142,994 km (0.064 R)
• M38: 83,688,490 km (0.102 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 19,254 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit