🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.67 AU - 0.67 AU

Year: 349 Days

Day: 17.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,801,938 km

• M1: 58,642 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469

Radius: 13

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.03 AU - 1.21 AU

Year: 754 Days

Day: 8.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,801,938 km

• M1: 161,715 km (0.051 R)
• M2: 731,833 km (0.056 R)
• M3: 1,140,085 km (0.109 R)
• M4: 1,645,876 km (0.11 R)
• M5: 2,691,565 km (0.101 R)
• M6: 3,675,470 km (0.085 R)
• M7: 4,154,632 km (0.09 R)
• M8: 4,627,810 km (0.111 R)
• M9: 5,431,899 km (0.079 R)
• M10: 6,728,314 km (0.033 R)
• M11: 7,383,852 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.3

Radius: 12.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.23 AU - 1.43 AU

Year: 975 Days

Day: 12.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,801,938 km

• M1: 160,369 km (0.098 R)
• M2: 707,149 km (0.07 R)
• M3: 1,207,853 km (0.048 R)
• M4: 1,774,530 km (0.082 R)
• M5: 2,441,587 km (0.107 R)
• M6: 4,501,849 km (0.073 R)
• M7: 5,179,078 km (0.094 R)
• M8: 6,823,159 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368

Radius: 10.8

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.47 AU - 1.69 AU

Year: 1263 Days

Day: 7.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,801,938 km

• M1: 136,882 km (0.118 R)
• M2: 734,974 km (0.075 R)
• M3: 1,106,875 km (0.113 R)
• M4: 1,518,119 km (0.093 R)
• M5: 1,897,649 km (0.102 R)
• M6: 2,450,862 km (0.071 R)
• M7: 2,827,849 km (0.107 R)
• M8: 3,509,416 km (0.117 R)
• M9: 4,038,245 km (0.074 R)
• M10: 4,380,674 km (0.098 R)
• M11: 5,351,714 km (0.069 R)
• M12: 6,222,972 km (0.109 R)
• M13: 7,328,201 km (0.055 R)
• M14: 7,666,891 km (0.117 R)
• M15: 8,168,792 km (0.034 R)

Asteroid Belt

Center: 3.77 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.1

Radius: 9.6

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.41 AU - 6.49 AU

Year: 9228 Days

Day: 11.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,801,938 km

• M1: 119,379 km (0.056 R)
• M2: 1,108,071 km (0.078 R)
• M3: 3,081,567 km (0.062 R)
• M4: 3,783,031 km (0.113 R)
• M5: 4,103,021 km (0.116 R)
• M6: 4,706,798 km (0.094 R)
• M7: 8,470,082 km (0.099 R)
• M8: 14,770,396 km (0.053 R)
• M9: 15,568,202 km (0.074 R)
• M10: 20,804,875 km (0.079 R)
• M11: 21,301,839 km (0.1 R)
• M12: 22,753,387 km (0.097 R)
• M13: 23,281,169 km (0.111 R)
• M14: 31,769,950 km (0.09 R)
• M15: 32,098,467 km (0.118 R)
• M16: 37,546,522 km (0.062 R)
• M17: 40,552,692 km (0.028 R)
• M18: 41,458,806 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.5

Radius: 3

Gravity: 27.28 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.62 AU - 7.06 AU

Year: 10150 Days

Day: 15.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,801,938 km

• M1: 37,399 km (0.099 R)
• M2: 178,021 km (0.115 R)
• M3: 369,208 km (0.09 R)
• M4: 1,510,041 km (0.102 R)
• M5: 1,707,660 km (0.073 R)
• M6: 2,268,801 km (0.088 R)
• M7: 2,528,054 km (0.05 R)
• M8: 4,784,140 km (0.104 R)
• M9: 6,134,560 km (0.087 R)
• M10: 6,499,728 km (0.074 R)
• M11: 8,667,401 km (0.117 R)
• M12: 11,618,519 km (0.062 R)
• M13: 17,624,574 km (0.099 R)
• M14: 18,907,675 km (0.108 R)
• M15: 20,035,344 km (0.093 R)
• M16: 22,423,674 km (0.12 R)
• M17: 24,334,786 km (0.103 R)
• M18: 29,117,730 km (0.061 R)
• M19: 31,972,955 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 553.5

Radius: 3

Gravity: 61.5 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.33 AU - 7.55 AU

Year: 10391 Days

Day: 15.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 45,801,938 km

• M1: 38,147 km (0.088 R)
• M2: 135,536 km (0.03 R)
• M3: 239,207 km (0.086 R)
• M4: 414,536 km (0.116 R)
• M5: 531,222 km (0.091 R)
• M6: 669,899 km (0.117 R)
• M7: 1,932,954 km (0.108 R)
• M8: 2,154,808 km (0.066 R)
• M9: 2,262,668 km (0.075 R)
• M10: 3,010,358 km (0.095 R)
• M11: 3,501,039 km (0.103 R)
• M12: 3,778,393 km (0.12 R)
• M13: 5,487,699 km (0.087 R)
• M14: 5,826,837 km (0.082 R)
• M15: 6,889,281 km (0.086 R)
• M16: 7,084,656 km (0.079 R)
• M17: 7,734,808 km (0.118 R)
• M18: 8,074,246 km (0.051 R)
• M19: 8,874,445 km (0.095 R)
• M20: 9,059,198 km (0.072 R)
• M21: 10,323,151 km (0.097 R)
• M22: 10,682,485 km (0.078 R)
• M23: 10,786,754 km (0.119 R)
• M24: 10,944,281 km (0.092 R)
• M25: 13,495,822 km (0.118 R)
• M26: 13,678,781 km (0.109 R)
• M27: 13,925,318 km (0.107 R)
• M28: 15,667,385 km (0.101 R)
• M29: 19,267,159 km (0.075 R)
• M30: 20,126,898 km (0.097 R)
• M31: 23,644,991 km (0.027 R)
• M32: 23,821,965 km (0.056 R)
• M33: 25,641,524 km (0.043 R)
• M34: 26,489,744 km (0.066 R)
• M35: 26,872,565 km (0.09 R)
• M36: 28,741,940 km (0.096 R)
• M37: 35,906,631 km (0.113 R)
• M38: 40,526,961 km (0.079 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 13,117 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit