🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.58 AU - 0.64 AU

Year: 303 Days

Day: 14 Hours

Environment

Temp: -134 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619

Radius: 14.5

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.84 AU - 0.92 AU

Year: 525 Days

Day: 10.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,714,305 km

• M1: 180,415 km (0.095 R)
• M2: 675,584 km (0.026 R)
• M3: 1,374,804 km (0.098 R)
• M4: 2,264,313 km (0.108 R)
• M5: 2,920,150 km (0.041 R)
• M6: 3,389,888 km (0.109 R)
• M7: 4,169,741 km (0.087 R)
• M8: 4,708,443 km (0.056 R)
• M9: 5,244,303 km (0.093 R)
• M10: 5,927,068 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.7

Radius: 12

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.5 AU - 2.16 AU

Year: 1574 Days

Day: 10.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,714,305 km

• M1: 149,299 km (0.106 R)
• M2: 569,519 km (0.089 R)
• M3: 982,110 km (0.107 R)
• M4: 1,848,431 km (0.104 R)
• M5: 2,223,174 km (0.114 R)
• M6: 3,772,260 km (0.119 R)
• M7: 4,168,694 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.4

Radius: 9.9

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.83 AU - 3.03 AU

Year: 2408 Days

Day: 12 Hours

Environment

Temp: -190 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,714,305 km

• M1: 123,119 km (0.103 R)
• M2: 462,706 km (0.106 R)
• M3: 855,999 km (0.111 R)
• M4: 1,554,621 km (0.099 R)
• M5: 2,967,274 km (0.098 R)
• M6: 4,213,723 km (0.059 R)
• M7: 6,012,937 km (0.094 R)
• M8: 6,553,733 km (0.109 R)
• M9: 7,038,729 km (0.119 R)
• M10: 7,516,844 km (0.054 R)
• M11: 8,438,816 km (0.093 R)
• M12: 11,905,747 km (0.118 R)
• M13: 12,934,830 km (0.03 R)
• M14: 13,380,632 km (0.103 R)
• M15: 14,021,958 km (0.116 R)
• M16: 14,492,593 km (0.094 R)
• M17: 15,715,256 km (0.073 R)
• M18: 17,271,523 km (0.111 R)
• M19: 17,757,866 km (0.11 R)
• M20: 18,308,984 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.2

Radius: 8.6

Gravity: 13.14 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.4 AU - 3.6 AU

Year: 3304 Days

Day: 6.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,714,305 km

• M1: 112,498 km (0.056 R)
• M2: 978,968 km (0.083 R)
• M3: 1,592,918 km (0.093 R)
• M4: 1,899,893 km (0.069 R)
• M5: 2,802,716 km (0.117 R)
• M6: 3,447,932 km (0.1 R)
• M7: 4,256,957 km (0.111 R)
• M8: 4,980,712 km (0.115 R)
• M9: 5,372,060 km (0.039 R)
• M10: 5,925,871 km (0.089 R)
• M11: 6,305,999 km (0.054 R)
• M12: 6,922,342 km (0.066 R)
• M13: 13,731,140 km (0.092 R)
• M14: 16,243,038 km (0.093 R)
• M15: 17,105,320 km (0.107 R)
• M16: 20,134,826 km (0.107 R)
• M17: 24,532,405 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.4

Radius: 12.9

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.65 AU - 4.01 AU

Year: 4766 Days

Day: 11.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 107.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,714,305 km

• M1: 160,519 km (0.09 R)
• M2: 585,376 km (0.091 R)
• M3: 1,206,357 km (0.091 R)
• M4: 1,749,248 km (0.094 R)
• M5: 2,308,146 km (0.078 R)
• M6: 2,914,316 km (0.097 R)
• M7: 3,978,555 km (0.117 R)
• M8: 5,436,087 km (0.116 R)
• M9: 6,133,064 km (0.115 R)
• M10: 6,939,845 km (0.092 R)
• M11: 7,788,664 km (0.093 R)
• M12: 9,313,963 km (0.1 R)
• M13: 10,616,811 km (0.104 R)
• M14: 11,170,623 km (0.099 R)
• M15: 12,601,825 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.4

Radius: 8.9

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.26 AU - 5.72 AU

Year: 8179 Days

Day: 8.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,714,305 km

• M1: 110,702 km (0.05 R)
• M2: 505,641 km (0.111 R)
• M3: 906,563 km (0.089 R)
• M4: 1,576,313 km (0.105 R)
• M5: 1,924,577 km (0.062 R)
• M6: 2,474,947 km (0.096 R)
• M7: 3,439,255 km (0.113 R)
• M8: 4,078,936 km (0.069 R)
• M9: 4,401,917 km (0.109 R)
• M10: 5,099,343 km (0.092 R)
• M11: 6,781,271 km (0.077 R)
• M12: 7,200,295 km (0.036 R)
• M13: 7,525,820 km (0.111 R)
• M14: 8,206,341 km (0.089 R)
• M15: 8,521,693 km (0.116 R)
• M16: 8,845,273 km (0.077 R)
• M17: 12,086,610 km (0.114 R)
• M18: 17,298,600 km (0.115 R)
• M19: 18,015,623 km (0.064 R)
• M20: 18,549,388 km (0.088 R)
• M21: 20,142,904 km (0.096 R)
• M22: 21,675,684 km (0.061 R)
• M23: 23,363,298 km (0.081 R)
• M24: 24,644,454 km (0.093 R)
• M25: 31,279,269 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279

Radius: 7.7

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 8.31 AU - 13.85 AU

Year: 23450 Days

Day: 16.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,714,305 km

• M1: 96,191 km (0.102 R)
• M2: 382,223 km (0.052 R)
• M3: 771,626 km (0.101 R)
• M4: 1,109,867 km (0.039 R)
• M5: 1,622,987 km (0.101 R)
• M6: 2,346,143 km (0.052 R)
• M7: 2,780,576 km (0.043 R)
• M8: 3,090,991 km (0.102 R)
• M9: 3,753,411 km (0.105 R)
• M10: 4,411,492 km (0.107 R)
• M11: 6,111,671 km (0.118 R)
• M12: 6,391,719 km (0.119 R)
• M13: 7,508,018 km (0.119 R)
• M14: 9,208,796 km (0.105 R)
• M15: 9,792,527 km (0.12 R)
• M16: 15,457,050 km (0.104 R)
• M17: 15,903,002 km (0.095 R)
• M18: 16,205,040 km (0.062 R)
• M19: 17,134,192 km (0.118 R)
• M20: 17,853,907 km (0.103 R)
• M21: 20,845,865 km (0.097 R)
• M22: 25,470,234 km (0.106 R)
• M23: 27,801,418 km (0.084 R)
• M24: 33,620,925 km (0.096 R)
• M25: 34,369,662 km (0.093 R)
• M26: 38,959,923 km (0.09 R)
• M27: 44,687,726 km (0.046 R)
• M28: 44,988,119 km (0.119 R)
• M29: 49,334,685 km (0.058 R)
• M30: 52,772,444 km (0.107 R)
• M31: 57,246,019 km (0.1 R)
• M32: 58,313,100 km (0.084 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: 459 - 18,142 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit