🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.65 AU - 0.69 AU

Year: 191 Days

Day: 14.4 Hours

Environment

Temp: 246 °C

Axial Tilt: 18 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 45,802,526 km

• M1: 301,739 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.75 AU - 1.21 AU

Year: 338 Days

Day: 38.2 Hours

Environment

Temp: 85 °C

Axial Tilt: 31.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.82 AU - 1.18 AU

Year: 348 Days

Day: 36.1 Hours

Environment

Temp: 124 °C

Axial Tilt: 23 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.4 AU - 2.4 AU

Year: 1295 Days

Day: 19.9 Hours

Environment

Temp: -62 °C

Axial Tilt: 54.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.27 AU - 4.67 AU

Year: 2755 Days

Day: 44.4 Hours

Environment

Temp: -102 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.09 AU - 5.79 AU

Year: 3824 Days

Day: 16.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 136.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.1

Radius: 9.7

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.85 AU - 6.25 AU

Year: 5182 Days

Day: 5.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,802,526 km

• M1: 121,324 km (0.036 R)
• M2: 558,000 km (0.108 R)
• M3: 993,629 km (0.117 R)
• M4: 1,408,015 km (0.076 R)
• M5: 2,062,805 km (0.113 R)
• M6: 3,191,671 km (0.071 R)
• M7: 3,597,829 km (0.041 R)
• M8: 4,084,471 km (0.106 R)
• M9: 4,844,278 km (0.09 R)
• M10: 5,299,355 km (0.086 R)
• M11: 5,782,706 km (0.108 R)
• M12: 7,481,090 km (0.109 R)
• M13: 8,693,431 km (0.115 R)
• M14: 9,285,689 km (0.072 R)
• M15: 9,947,062 km (0.11 R)
• M16: 11,088,194 km (0.096 R)
• M17: 13,112,702 km (0.07 R)
• M18: 14,978,786 km (0.079 R)
• M19: 16,356,582 km (0.105 R)
• M20: 16,834,099 km (0.109 R)
• M21: 17,198,370 km (0.111 R)
• M22: 18,131,860 km (0.119 R)
• M23: 19,362,452 km (0.087 R)
• M24: 21,276,108 km (0.095 R)
• M25: 21,702,163 km (0.079 R)
• M26: 24,301,127 km (0.114 R)
• M27: 25,238,058 km (0.085 R)
• M28: 26,361,389 km (0.104 R)
• M29: 27,769,853 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.8

Radius: 12.5

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.89 AU - 9.37 AU

Year: 8829 Days

Day: 11.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,802,526 km

• M1: 156,330 km (0.083 R)
• M2: 668,254 km (0.072 R)
• M3: 1,442,722 km (0.11 R)
• M4: 1,886,130 km (0.067 R)
• M5: 2,291,839 km (0.088 R)
• M6: 3,012,004 km (0.072 R)
• M7: 4,174,379 km (0.064 R)
• M8: 4,997,317 km (0.093 R)
• M9: 5,414,994 km (0.113 R)
• M10: 7,203,885 km (0.033 R)
• M11: 7,696,362 km (0.109 R)
• M12: 8,167,595 km (0.119 R)
• M13: 9,167,956 km (0.101 R)
• M14: 10,766,708 km (0.089 R)
• M15: 12,197,014 km (0.088 R)
• M16: 13,198,272 km (0.087 R)
• M17: 15,031,893 km (0.098 R)
• M18: 15,431,469 km (0.112 R)
• M19: 16,182,750 km (0.115 R)
• M20: 17,173,836 km (0.107 R)
• M21: 17,758,015 km (0.106 R)
• M22: 22,312,522 km (0.045 R)
• M23: 26,320,997 km (0.108 R)
• M24: 30,893,007 km (0.078 R)
• M25: 31,323,401 km (0.108 R)
• M26: 32,749,816 km (0.049 R)
• M27: 33,762,444 km (0.117 R)
• M28: 39,772,090 km (0.108 R)
• M29: 41,054,144 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 586.7

Radius: 4.1

Gravity: 34.9 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 12.68 AU - 18.82 AU

Year: 21768 Days

Day: 23.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 45,802,526 km

• M1: 51,162 km (0.104 R)
• M2: 319,242 km (0.093 R)
• M3: 474,674 km (0.117 R)
• M4: 1,728,304 km (0.086 R)
• M5: 2,072,978 km (0.101 R)
• M6: 2,371,575 km (0.096 R)
• M7: 2,625,742 km (0.111 R)
• M8: 2,796,732 km (0.056 R)
• M9: 3,556,689 km (0.101 R)
• M10: 3,735,908 km (0.068 R)
• M11: 4,145,058 km (0.043 R)
• M12: 4,583,380 km (0.098 R)
• M13: 4,795,809 km (0.025 R)
• M14: 5,916,297 km (0.11 R)
• M15: 9,318,152 km (0.034 R)
• M16: 10,067,638 km (0.119 R)
• M17: 10,856,467 km (0.042 R)
• M18: 11,620,314 km (0.076 R)
• M19: 12,487,682 km (0.117 R)
• M20: 13,325,879 km (0.091 R)
• M21: 13,905,122 km (0.093 R)
• M22: 15,269,305 km (0.053 R)
• M23: 19,065,351 km (0.115 R)
• M24: 19,707,275 km (0.099 R)
• M25: 20,080,373 km (0.096 R)
• M26: 25,922,768 km (0.062 R)
• M27: 28,807,763 km (0.039 R)
• M28: 29,409,296 km (0.083 R)
• M29: 34,797,213 km (0.119 R)
• M30: 35,479,379 km (0.099 R)
• M31: 39,612,768 km (0.071 R)
• M32: 49,673,973 km (0.085 R)
• M33: 50,364,666 km (0.109 R)
• M34: 60,719,233 km (0.099 R)
• M35: 61,508,810 km (0.082 R)
• M36: 62,907,101 km (0.049 R)
• M37: 71,524,537 km (0.097 R)
• M38: 73,739,483 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.6

Radius: 4.3

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 15.34 AU - 24.66 AU

Year: 31149 Days

Day: 19.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,802,526 km

• M1: 53,706 km (0.07 R)
• M2: 207,941 km (0.095 R)
• M3: 408,552 km (0.1 R)
• M4: 685,906 km (0.103 R)
• M5: 1,301,053 km (0.055 R)
• M6: 1,667,867 km (0.099 R)
• M7: 1,998,179 km (0.052 R)
• M8: 3,793,353 km (0.047 R)
• M9: 4,535,658 km (0.085 R)
• M10: 6,302,409 km (0.078 R)
• M11: 7,177,556 km (0.08 R)
• M12: 8,044,775 km (0.119 R)
• M13: 8,304,926 km (0.1 R)
• M14: 10,437,593 km (0.11 R)
• M15: 11,657,115 km (0.119 R)
• M16: 13,206,201 km (0.095 R)
• M17: 17,058,196 km (0.059 R)
• M18: 21,184,554 km (0.117 R)
• M19: 22,268,690 km (0.094 R)
• M20: 27,460,634 km (0.096 R)

Kuiper Belt

Range: 31.5 - 48.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 12,629 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit