🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.68 AU - 0.86 AU

Year: 252 Days

Day: 43.3 Hours

Environment

Temp: 180 °C

Axial Tilt: 18.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.98 AU - 1.46 AU

Year: 502 Days

Day: 42.5 Hours

Environment

Temp: 7 °C

Axial Tilt: 35 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 52,024,251 km

• M1: 306,227 km (0.088 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.37 AU - 3.05 AU

Year: 1663 Days

Day: 41.7 Hours

Environment

Temp: -95 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.14 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.1

Radius: 11.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 5.02 AU - 6.12 AU

Year: 4900 Days

Day: 11.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,024,251 km

• M1: 143,016 km (0.03 R)
• M2: 878,887 km (0.078 R)
• M3: 1,602,792 km (0.06 R)
• M4: 2,102,448 km (0.053 R)
• M5: 3,576,436 km (0.045 R)
• M6: 4,130,846 km (0.109 R)
• M7: 9,224,354 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.2

Radius: 10.3

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 9 AU - 9 AU

Year: 10065 Days

Day: 14 Hours

Environment

Temp: -169 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,024,251 km

• M1: 128,205 km (0.064 R)
• M2: 471,383 km (0.107 R)
• M3: 926,160 km (0.106 R)
• M4: 1,833,023 km (0.082 R)
• M5: 2,587,445 km (0.079 R)
• M6: 3,159,507 km (0.059 R)
• M7: 3,561,626 km (0.05 R)
• M8: 5,071,667 km (0.099 R)
• M9: 5,491,439 km (0.105 R)
• M10: 5,864,835 km (0.095 R)
• M11: 6,662,491 km (0.09 R)
• M12: 7,286,912 km (0.076 R)
• M13: 8,926,505 km (0.07 R)
• M14: 9,348,371 km (0.115 R)
• M15: 10,642,393 km (0.114 R)
• M16: 16,671,636 km (0.084 R)
• M17: 18,948,066 km (0.113 R)
• M18: 22,096,653 km (0.029 R)
• M19: 23,483,724 km (0.064 R)
• M20: 23,928,778 km (0.115 R)
• M21: 24,836,089 km (0.075 R)
• M22: 27,794,237 km (0.098 R)
• M23: 30,135,294 km (0.086 R)
• M24: 35,907,079 km (0.106 R)
• M25: 38,310,220 km (0.089 R)
• M26: 38,679,726 km (0.075 R)
• M27: 41,721,949 km (0.102 R)
• M28: 42,244,045 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.5

Radius: 8

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 10.71 AU - 12.57 AU

Year: 14804 Days

Day: 13.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 52,024,251 km

• M1: 99,483 km (0.053 R)
• M2: 409,898 km (0.102 R)
• M3: 785,688 km (0.108 R)
• M4: 1,234,482 km (0.079 R)
• M5: 1,909,916 km (0.066 R)
• M6: 2,201,482 km (0.11 R)
• M7: 3,943,400 km (0.118 R)
• M8: 4,449,041 km (0.092 R)
• M9: 5,287,836 km (0.115 R)
• M10: 5,727,354 km (0.106 R)
• M11: 7,481,539 km (0.118 R)
• M12: 8,802,040 km (0.031 R)
• M13: 9,131,304 km (0.027 R)
• M14: 11,064,408 km (0.099 R)
• M15: 11,337,574 km (0.105 R)
• M16: 11,897,519 km (0.082 R)
• M17: 13,378,089 km (0.072 R)
• M18: 14,066,987 km (0.088 R)
• M19: 16,700,657 km (0.091 R)
• M20: 18,551,931 km (0.084 R)
• M21: 18,937,894 km (0.096 R)
• M22: 20,535,749 km (0.1 R)
• M23: 21,032,264 km (0.089 R)
• M24: 23,906,637 km (0.078 R)
• M25: 25,770,627 km (0.079 R)
• M26: 30,208,597 km (0.1 R)
• M27: 30,528,437 km (0.091 R)
• M28: 31,720,882 km (0.052 R)
• M29: 34,662,425 km (0.092 R)
• M30: 36,079,416 km (0.112 R)
• M31: 36,681,099 km (0.09 R)
• M32: 40,174,658 km (0.051 R)
• M33: 42,134,539 km (0.038 R)
• M34: 43,883,937 km (0.094 R)
• M35: 48,833,532 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594.3

Radius: 4.7

Gravity: 26.9 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 12.2 AU - 13.22 AU

Year: 16892 Days

Day: 15.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 52,024,251 km

• M1: 63,579 km (0.12 R)
• M2: 365,617 km (0.096 R)
• M3: 531,521 km (0.066 R)
• M4: 767,287 km (0.051 R)
• M5: 1,046,587 km (0.081 R)
• M6: 1,391,111 km (0.119 R)
• M7: 1,988,455 km (0.11 R)
• M8: 2,493,946 km (0.098 R)
• M9: 2,859,862 km (0.047 R)
• M10: 4,426,003 km (0.108 R)
• M11: 4,892,449 km (0.034 R)
• M12: 6,001,268 km (0.082 R)
• M13: 6,656,507 km (0.11 R)
• M14: 7,222,884 km (0.097 R)
• M15: 9,010,729 km (0.098 R)
• M16: 9,923,126 km (0.05 R)
• M17: 11,193,361 km (0.117 R)
• M18: 14,690,810 km (0.114 R)
• M19: 14,981,030 km (0.068 R)
• M20: 17,604,378 km (0.114 R)
• M21: 18,683,278 km (0.064 R)
• M22: 19,109,931 km (0.088 R)
• M23: 19,282,268 km (0.082 R)
• M24: 19,717,897 km (0.047 R)
• M25: 21,340,286 km (0.115 R)
• M26: 23,738,340 km (0.083 R)
• M27: 28,948,086 km (0.111 R)
• M28: 31,396,404 km (0.12 R)
• M29: 32,120,458 km (0.091 R)
• M30: 33,351,948 km (0.06 R)
• M31: 33,853,250 km (0.099 R)
• M32: 35,257,675 km (0.053 R)
• M33: 35,647,228 km (0.063 R)
• M34: 36,171,269 km (0.029 R)
• M35: 50,999,410 km (0.098 R)
• M36: 53,012,249 km (0.037 R)
• M37: 62,347,755 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.5

Radius: 5.3

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 14.04 AU - 19.68 AU

Year: 25807 Days

Day: 15.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,024,251 km

• M1: 65,973 km (0.103 R)
• M2: 947,852 km (0.111 R)
• M3: 1,346,231 km (0.106 R)
• M4: 3,077,378 km (0.077 R)
• M5: 4,737,765 km (0.12 R)
• M6: 10,682,934 km (0.026 R)
• M7: 11,401,452 km (0.077 R)
• M8: 12,934,531 km (0.108 R)
• M9: 13,686,410 km (0.115 R)
• M10: 17,964,161 km (0.083 R)
• M11: 21,810,921 km (0.113 R)
• M12: 27,170,564 km (0.111 R)
• M13: 32,087,546 km (0.085 R)
• M14: 35,473,993 km (0.096 R)
• M15: 37,565,970 km (0.085 R)
• M16: 37,817,444 km (0.105 R)
• M17: 49,872,340 km (0.106 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 19,020 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit