🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.74 AU - 1.02 AU

Year: 311 Days

Day: 36.4 Hours

Environment

Temp: 20 °C

Axial Tilt: 130.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.93 AU - 1.01 AU

Year: 360 Days

Day: 28.4 Hours

Environment

Temp: 28 °C

Axial Tilt: 1.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Asteroid Belt

Center: 3.51 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.9

Radius: 9.5

Gravity: 10.03 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.09 AU - 6.99 AU

Year: 5592 Days

Day: 12.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 92,792,841 km

• M1: 118,482 km (0.103 R)
• M2: 539,899 km (0.111 R)
• M3: 842,086 km (0.085 R)
• M4: 1,617,751 km (0.089 R)
• M5: 2,830,242 km (0.098 R)
• M6: 3,626,851 km (0.1 R)
• M7: 9,445,460 km (0.074 R)
• M8: 9,799,708 km (0.083 R)
• M9: 13,233,428 km (0.11 R)
• M10: 13,789,782 km (0.09 R)
• M11: 16,680,611 km (0.044 R)
• M12: 17,133,444 km (0.105 R)
• M13: 19,880,211 km (0.089 R)
• M14: 20,907,350 km (0.085 R)
• M15: 22,828,635 km (0.025 R)
• M16: 26,143,275 km (0.096 R)
• M17: 27,464,823 km (0.075 R)
• M18: 28,461,892 km (0.071 R)
• M19: 28,830,352 km (0.096 R)
• M20: 30,145,317 km (0.089 R)
• M21: 32,591,991 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.2

Radius: 13

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.08 AU - 9.04 AU

Year: 8620 Days

Day: 7.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 92,792,841 km

• M1: 161,715 km (0.063 R)
• M2: 749,186 km (0.088 R)
• M3: 1,247,646 km (0.083 R)
• M4: 2,261,321 km (0.055 R)
• M5: 2,997,792 km (0.102 R)
• M6: 5,596,008 km (0.083 R)
• M7: 6,159,992 km (0.111 R)
• M8: 8,291,462 km (0.075 R)
• M9: 9,160,326 km (0.064 R)
• M10: 9,663,424 km (0.116 R)
• M11: 12,025,126 km (0.086 R)
• M12: 12,517,751 km (0.07 R)
• M13: 15,505,221 km (0.111 R)
• M14: 20,599,477 km (0.057 R)
• M15: 21,866,571 km (0.075 R)
• M16: 22,684,572 km (0.043 R)
• M17: 23,353,424 km (0.108 R)
• M18: 25,889,258 km (0.069 R)
• M19: 29,384,463 km (0.104 R)
• M20: 33,504,388 km (0.073 R)
• M21: 40,261,425 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 275.3

Radius: 3.3

Gravity: 25.28 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 13.68 AU - 19.36 AU

Year: 25295 Days

Day: 24.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 92,792,841 km

• M1: 41,289 km (0.102 R)
• M2: 363,523 km (0.061 R)
• M3: 903,721 km (0.105 R)
• M4: 1,347,278 km (0.088 R)
• M5: 1,641,687 km (0.067 R)
• M6: 2,879,011 km (0.115 R)
• M7: 3,392,431 km (0.116 R)
• M8: 3,670,683 km (0.108 R)
• M9: 3,786,322 km (0.038 R)
• M10: 4,465,646 km (0.093 R)
• M11: 4,597,442 km (0.076 R)
• M12: 5,295,465 km (0.05 R)
• M13: 6,429,118 km (0.115 R)
• M14: 6,597,116 km (0.049 R)
• M15: 8,644,812 km (0.114 R)
• M16: 8,849,612 km (0.065 R)
• M17: 11,079,517 km (0.065 R)
• M18: 12,517,751 km (0.099 R)
• M19: 14,791,489 km (0.047 R)
• M20: 15,010,950 km (0.031 R)
• M21: 18,315,118 km (0.11 R)
• M22: 18,738,031 km (0.101 R)
• M23: 19,167,526 km (0.08 R)
• M24: 19,341,210 km (0.046 R)
• M25: 20,135,425 km (0.096 R)
• M26: 21,694,534 km (0.091 R)
• M27: 26,206,555 km (0.095 R)
• M28: 26,527,742 km (0.105 R)
• M29: 27,728,265 km (0.092 R)
• M30: 29,422,909 km (0.076 R)
• M31: 29,653,888 km (0.094 R)
• M32: 35,048,238 km (0.115 R)
• M33: 37,975,120 km (0.062 R)
• M34: 38,800,751 km (0.095 R)
• M35: 41,494,111 km (0.093 R)
• M36: 43,706,514 km (0.108 R)
• M37: 50,812,862 km (0.101 R)
• M38: 55,954,989 km (0.04 R)
• M39: 61,810,399 km (0.062 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.8

Radius: 3.7

Gravity: 41.33 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 16.67 AU - 20.05 AU

Year: 29637 Days

Day: 17.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 92,792,841 km

• M1: 60,587 km (0.041 R)
• M2: 186,997 km (0.091 R)
• M3: 317,297 km (0.053 R)
• M4: 723,156 km (0.041 R)
• M5: 2,808,999 km (0.083 R)
• M6: 4,125,610 km (0.12 R)
• M7: 5,297,560 km (0.11 R)
• M8: 5,718,678 km (0.092 R)
• M9: 6,026,401 km (0.107 R)
• M10: 6,532,191 km (0.05 R)
• M11: 8,497,608 km (0.071 R)
• M12: 9,613,907 km (0.114 R)
• M13: 10,496,535 km (0.085 R)
• M14: 16,685,399 km (0.099 R)
• M15: 18,519,020 km (0.059 R)
• M16: 20,891,343 km (0.077 R)
• M17: 23,569,893 km (0.096 R)
• M18: 31,994,646 km (0.119 R)
• M19: 33,381,568 km (0.09 R)
• M20: 44,398,703 km (0.065 R)
• M21: 51,558,757 km (0.106 R)
• M22: 56,403,184 km (0.077 R)
• M23: 61,966,430 km (0.093 R)
• M24: 67,658,479 km (0.116 R)
• M25: 69,248,406 km (0.093 R)
• M26: 77,326,092 km (0.053 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 12,722 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit