🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.5

Radius: 11.6

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.86 AU - 0.96 AU

Year: 599 Days

Day: 11.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,291,159 km

• M1: 144,362 km (0.119 R)
• M2: 765,343 km (0.037 R)
• M3: 1,137,692 km (0.062 R)
• M4: 1,519,466 km (0.088 R)
• M5: 2,670,322 km (0.095 R)
• M6: 3,349,197 km (0.116 R)
• M7: 4,072,802 km (0.059 R)
• M8: 4,443,954 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.5

Radius: 11.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.14 AU - 1.3 AU

Year: 930 Days

Day: 5.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,291,159 km

• M1: 147,952 km (0.108 R)
• M2: 787,034 km (0.1 R)
• M3: 1,876,705 km (0.088 R)
• M4: 2,626,191 km (0.072 R)
• M5: 3,165,790 km (0.078 R)
• M6: 3,551,902 km (0.086 R)
• M7: 4,045,126 km (0.088 R)
• M8: 5,242,059 km (0.114 R)
• M9: 6,346,839 km (0.049 R)
• M10: 7,908,641 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19

Radius: 15

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.99 AU - 2.69 AU

Year: 2471 Days

Day: 13.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,291,159 km

• M1: 186,698 km (0.06 R)
• M2: 1,071,420 km (0.068 R)
• M3: 1,568,534 km (0.098 R)
• M4: 2,275,234 km (0.119 R)
• M5: 3,145,445 km (0.047 R)
• M6: 4,161,962 km (0.099 R)
• M7: 4,850,561 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.3

Radius: 14.2

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.29 AU - 3.79 AU

Year: 4597 Days

Day: 9.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,291,159 km

• M1: 179,368 km (0.059 R)
• M2: 1,064,389 km (0.05 R)
• M3: 1,648,419 km (0.092 R)
• M4: 2,909,978 km (0.109 R)
• M5: 4,080,581 km (0.104 R)
• M6: 5,449,102 km (0.094 R)
• M7: 6,070,233 km (0.113 R)
• M8: 6,877,762 km (0.108 R)
• M9: 8,349,805 km (0.104 R)
• M10: 10,316,269 km (0.078 R)
• M11: 13,440,920 km (0.09 R)
• M12: 15,583,012 km (0.09 R)
• M13: 17,464,504 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.9

Radius: 8.6

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.42 AU - 4.94 AU

Year: 5899 Days

Day: 10.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,291,159 km

• M1: 106,962 km (0.092 R)
• M2: 398,678 km (0.116 R)
• M3: 885,619 km (0.108 R)
• M4: 1,310,328 km (0.074 R)
• M5: 1,711,250 km (0.096 R)
• M6: 2,473,750 km (0.1 R)
• M7: 3,740,994 km (0.104 R)
• M8: 4,883,772 km (0.074 R)
• M9: 5,229,942 km (0.112 R)
• M10: 6,846,945 km (0.061 R)
• M11: 7,840,873 km (0.092 R)
• M12: 10,155,451 km (0.1 R)
• M13: 10,457,340 km (0.109 R)
• M14: 12,202,100 km (0.072 R)
• M15: 12,494,265 km (0.082 R)
• M16: 14,079,254 km (0.097 R)
• M17: 14,727,312 km (0.086 R)
• M18: 17,031,867 km (0.06 R)
• M19: 17,520,155 km (0.11 R)
• M20: 21,202,656 km (0.101 R)
• M21: 23,976,350 km (0.045 R)
• M22: 25,134,985 km (0.052 R)
• M23: 27,479,782 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.7

Radius: 13.2

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.15 AU - 4.65 AU

Year: 6371 Days

Day: 7.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,291,159 km

• M1: 164,109 km (0.058 R)
• M2: 809,025 km (0.045 R)
• M3: 1,763,011 km (0.1 R)
• M4: 2,752,002 km (0.114 R)
• M5: 4,664,312 km (0.05 R)
• M6: 6,776,036 km (0.116 R)
• M7: 11,208,321 km (0.115 R)
• M8: 14,001,014 km (0.118 R)
• M9: 14,832,778 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.1

Radius: 6.5

Gravity: 11.13 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.58 AU - 6.22 AU

Year: 9892 Days

Day: 22.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,291,159 km

• M1: 81,680 km (0.115 R)
• M2: 452,384 km (0.109 R)
• M3: 1,050,626 km (0.097 R)
• M4: 2,565,903 km (0.049 R)
• M5: 3,118,667 km (0.044 R)
• M6: 5,769,990 km (0.103 R)
• M7: 6,353,272 km (0.078 R)
• M8: 8,297,296 km (0.1 R)
• M9: 9,543,297 km (0.109 R)
• M10: 10,162,333 km (0.103 R)
• M11: 17,334,204 km (0.111 R)
• M12: 18,398,893 km (0.111 R)
• M13: 19,961,891 km (0.047 R)
• M14: 24,209,124 km (0.085 R)
• M15: 27,101,599 km (0.08 R)
• M16: 32,279,780 km (0.106 R)
• M17: 36,341,362 km (0.119 R)
• M18: 41,101,566 km (0.103 R)
• M19: 41,849,705 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49

Radius: 6.5

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 7.45 AU - 8.31 AU

Year: 15269 Days

Day: 22.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,291,159 km

• M1: 80,783 km (0.084 R)
• M2: 284,984 km (0.05 R)
• M3: 527,332 km (0.092 R)
• M4: 1,535,622 km (0.102 R)
• M5: 1,854,116 km (0.041 R)
• M6: 2,509,803 km (0.092 R)
• M7: 2,776,985 km (0.107 R)
• M8: 3,570,004 km (0.119 R)
• M9: 3,865,160 km (0.053 R)
• M10: 6,410,418 km (0.1 R)
• M11: 8,314,799 km (0.097 R)
• M12: 9,534,770 km (0.044 R)
• M13: 11,311,095 km (0.076 R)
• M14: 12,277,048 km (0.114 R)
• M15: 13,297,007 km (0.108 R)
• M16: 16,578,586 km (0.066 R)
• M17: 19,191,761 km (0.115 R)
• M18: 20,032,950 km (0.053 R)
• M19: 21,511,875 km (0.075 R)
• M20: 24,161,103 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844.5

Radius: 5.2

Gravity: 31.23 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 7.3 AU - 9.88 AU

Year: 17378 Days

Day: 17.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,291,159 km

• M1: 64,776 km (0.087 R)
• M2: 259,702 km (0.077 R)
• M3: 614,997 km (0.103 R)
• M4: 1,015,770 km (0.094 R)
• M5: 1,183,170 km (0.077 R)
• M6: 1,414,897 km (0.05 R)
• M7: 1,676,693 km (0.101 R)
• M8: 2,150,021 km (0.084 R)
• M9: 4,300,490 km (0.059 R)
• M10: 5,762,660 km (0.09 R)
• M11: 8,690,888 km (0.115 R)
• M12: 9,454,735 km (0.083 R)
• M13: 9,738,223 km (0.086 R)
• M14: 12,549,317 km (0.059 R)
• M15: 18,186,314 km (0.107 R)
• M16: 18,624,785 km (0.063 R)
• M17: 19,160,196 km (0.053 R)
• M18: 20,637,924 km (0.071 R)
• M19: 24,982,695 km (0.083 R)
• M20: 28,585,460 km (0.105 R)
• M21: 32,136,615 km (0.087 R)
• M22: 35,018,767 km (0.103 R)
• M23: 41,592,696 km (0.057 R)
• M24: 44,216,343 km (0.071 R)
• M25: 48,271,942 km (0.113 R)
• M26: 58,431,283 km (0.042 R)
• M27: 66,146,793 km (0.09 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 18,785 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit