🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.44 AU - 0.62 AU

Year: 253 Days

Day: 40.8 Hours

Environment

Temp: -112 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.3

Radius: 8.2

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.79 AU - 0.83 AU

Year: 478 Days

Day: 6.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,351,886 km

• M1: 102,175 km (0.059 R)
• M2: 438,771 km (0.104 R)
• M3: 699,669 km (0.047 R)
• M4: 1,024,895 km (0.098 R)
• M5: 1,759,121 km (0.105 R)
• M6: 2,611,979 km (0.078 R)
• M7: 3,093,235 km (0.114 R)
• M8: 3,411,879 km (0.081 R)
• M9: 4,529,524 km (0.119 R)
• M10: 5,030,079 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.7

Radius: 11

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.63 AU - 1.03 AU

Year: 496 Days

Day: 8.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,351,886 km

• M1: 136,732 km (0.034 R)
• M2: 525,986 km (0.089 R)
• M3: 1,161,029 km (0.107 R)
• M4: 1,503,459 km (0.05 R)
• M5: 2,290,194 km (0.093 R)
• M6: 2,787,607 km (0.091 R)
• M7: 3,687,887 km (0.111 R)
• M8: 4,068,464 km (0.103 R)
• M9: 4,817,351 km (0.064 R)
• M10: 5,208,848 km (0.105 R)
• M11: 5,845,088 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.7

Radius: 13.8

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1 AU - 1.26 AU

Year: 788 Days

Day: 6.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 88,351,886 km

• M1: 171,888 km (0.082 R)
• M2: 756,666 km (0.045 R)
• M3: 1,448,706 km (0.115 R)
• M4: 2,293,934 km (0.059 R)
• M5: 2,763,073 km (0.113 R)
• M6: 3,489,819 km (0.072 R)
• M7: 3,929,786 km (0.119 R)
• M8: 4,490,330 km (0.036 R)
• M9: 5,122,231 km (0.117 R)
• M10: 5,556,514 km (0.065 R)
• M11: 5,995,135 km (0.03 R)
• M12: 6,718,740 km (0.077 R)
• M13: 7,194,311 km (0.081 R)
• M14: 7,888,146 km (0.113 R)
• M15: 8,998,761 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.5

Radius: 9.6

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.43 AU - 1.81 AU

Year: 1353 Days

Day: 9.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,351,886 km

• M1: 119,379 km (0.093 R)
• M2: 490,831 km (0.041 R)
• M3: 1,159,683 km (0.086 R)
• M4: 1,673,402 km (0.115 R)
• M5: 1,974,243 km (0.097 R)
• M6: 2,443,980 km (0.067 R)
• M7: 3,266,619 km (0.049 R)
• M8: 5,471,243 km (0.09 R)
• M9: 6,250,199 km (0.06 R)
• M10: 7,458,052 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.4

Radius: 12.4

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.26 AU - 3.38 AU

Year: 3107 Days

Day: 13.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,351,886 km

• M1: 181,462 km (0.111 R)
• M2: 591,061 km (0.051 R)
• M3: 1,019,210 km (0.077 R)
• M4: 1,483,712 km (0.095 R)
• M5: 1,910,814 km (0.118 R)
• M6: 2,407,778 km (0.077 R)
• M7: 3,189,576 km (0.095 R)
• M8: 4,910,700 km (0.12 R)
• M9: 7,376,970 km (0.112 R)
• M10: 8,520,048 km (0.06 R)
• M11: 10,293,231 km (0.088 R)
• M12: 10,682,784 km (0.116 R)
• M13: 14,469,256 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.5

Radius: 11.6

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.04 AU - 3.24 AU

Year: 3650 Days

Day: 14.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,351,886 km

• M1: 144,212 km (0.107 R)
• M2: 753,076 km (0.086 R)
• M3: 1,356,254 km (0.083 R)
• M4: 1,762,263 km (0.115 R)
• M5: 2,416,903 km (0.041 R)
• M6: 2,950,968 km (0.104 R)
• M7: 3,562,823 km (0.091 R)
• M8: 3,986,933 km (0.099 R)
• M9: 4,589,064 km (0.119 R)
• M10: 6,453,652 km (0.115 R)
• M11: 8,778,104 km (0.117 R)
• M12: 9,161,673 km (0.088 R)
• M13: 10,679,942 km (0.045 R)
• M14: 12,455,220 km (0.099 R)
• M15: 16,815,848 km (0.097 R)
• M16: 18,077,706 km (0.094 R)
• M17: 18,889,873 km (0.11 R)
• M18: 19,401,797 km (0.113 R)
• M19: 20,386,300 km (0.071 R)
• M20: 22,597,656 km (0.095 R)
• M21: 25,659,027 km (0.075 R)
• M22: 26,844,889 km (0.053 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.2

Radius: 10.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.03 AU - 3.49 AU

Year: 3861 Days

Day: 11.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 88,351,886 km

• M1: 128,056 km (0.098 R)
• M2: 509,530 km (0.047 R)
• M3: 885,619 km (0.12 R)
• M4: 1,525,449 km (0.095 R)
• M5: 1,898,397 km (0.108 R)
• M6: 3,326,907 km (0.096 R)
• M7: 4,047,221 km (0.049 R)
• M8: 4,868,214 km (0.101 R)
• M9: 6,303,007 km (0.084 R)
• M10: 18,831,829 km (0.046 R)
• M11: 19,320,715 km (0.11 R)
• M12: 20,709,132 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 669.1

Radius: 6.7

Gravity: 14.91 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.89 AU - 7.85 AU

Year: 10547 Days

Day: 20.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 88,351,886 km

• M1: 83,326 km (0.093 R)
• M2: 365,468 km (0.119 R)
• M3: 721,810 km (0.085 R)
• M4: 1,246,300 km (0.059 R)
• M5: 1,492,837 km (0.053 R)
• M6: 1,741,020 km (0.102 R)
• M7: 2,210,608 km (0.084 R)
• M8: 2,575,178 km (0.09 R)
• M9: 3,161,452 km (0.116 R)
• M10: 4,160,616 km (0.117 R)
• M11: 6,570,638 km (0.04 R)
• M12: 7,283,472 km (0.083 R)
• M13: 7,658,663 km (0.099 R)
• M14: 8,909,002 km (0.107 R)
• M15: 9,145,815 km (0.111 R)
• M16: 12,036,046 km (0.063 R)
• M17: 14,550,188 km (0.064 R)
• M18: 15,145,588 km (0.08 R)
• M19: 15,619,813 km (0.096 R)
• M20: 16,103,762 km (0.111 R)
• M21: 21,423,462 km (0.113 R)
• M22: 24,801,233 km (0.115 R)
• M23: 25,555,056 km (0.114 R)
• M24: 26,033,769 km (0.061 R)
• M25: 26,812,277 km (0.061 R)
• M26: 27,506,112 km (0.09 R)
• M27: 32,032,794 km (0.027 R)
• M28: 32,926,491 km (0.082 R)
• M29: 33,722,053 km (0.089 R)
• M30: 34,298,005 km (0.083 R)
• M31: 37,892,542 km (0.054 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.9

Radius: 4.7

Gravity: 36.53 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 8.93 AU - 12.53 AU

Year: 23057 Days

Day: 21 Hours

Environment

Temp: -237 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 88,351,886 km

• M1: 64,028 km (0.084 R)
• M2: 211,083 km (0.053 R)
• M3: 499,956 km (0.102 R)
• M4: 1,146,817 km (0.103 R)
• M5: 1,682,976 km (0.1 R)
• M6: 3,006,169 km (0.119 R)
• M7: 3,318,829 km (0.085 R)
• M8: 3,498,197 km (0.063 R)
• M9: 5,709,253 km (0.042 R)
• M10: 6,055,123 km (0.084 R)
• M11: 6,414,757 km (0.117 R)
• M12: 7,734,509 km (0.064 R)
• M13: 8,375,386 km (0.037 R)
• M14: 10,638,054 km (0.094 R)
• M15: 11,565,262 km (0.105 R)
• M16: 13,277,858 km (0.084 R)
• M17: 13,654,845 km (0.078 R)
• M18: 13,884,328 km (0.119 R)
• M19: 14,588,635 km (0.099 R)
• M20: 16,756,457 km (0.12 R)
• M21: 18,750,896 km (0.037 R)
• M22: 19,321,163 km (0.036 R)
• M23: 21,101,228 km (0.115 R)
• M24: 22,241,314 km (0.085 R)
• M25: 22,987,658 km (0.038 R)
• M26: 26,852,369 km (0.075 R)
• M27: 27,698,495 km (0.092 R)
• M28: 28,812,101 km (0.047 R)
• M29: 35,837,068 km (0.107 R)
• M30: 36,567,255 km (0.078 R)
• M31: 36,862,112 km (0.095 R)
• M32: 37,755,959 km (0.032 R)
• M33: 49,276,940 km (0.106 R)
• M34: 54,090,551 km (0.045 R)
• M35: 57,600,566 km (0.12 R)
• M36: 64,210,099 km (0.068 R)
• M37: 64,854,417 km (0.115 R)
• M38: 67,033,459 km (0.049 R)
• M39: 78,664,096 km (0.1 R)
• M40: 85,989,305 km (0.081 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 17,250 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit