🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.49 AU - 0.79 AU

Year: 331 Days

Day: 40.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.8

Radius: 13.3

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.76 AU - 1.06 AU

Year: 561 Days

Day: 10.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 60.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 43,082,418 km

• M1: 165,455 km (0.102 R)
• M2: 952,938 km (0.103 R)
• M3: 1,568,534 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.8

Radius: 12.4

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.05 AU - 1.23 AU

Year: 786 Days

Day: 10.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,082,418 km

• M1: 156,330 km (0.115 R)
• M2: 741,856 km (0.093 R)
• M3: 1,131,857 km (0.087 R)
• M4: 2,056,672 km (0.06 R)
• M5: 2,478,837 km (0.064 R)
• M6: 3,057,631 km (0.112 R)
• M7: 3,556,689 km (0.106 R)
• M8: 4,619,582 km (0.112 R)
• M9: 5,243,405 km (0.117 R)
• M10: 5,632,809 km (0.088 R)
• M11: 6,284,008 km (0.114 R)
• M12: 6,702,733 km (0.102 R)
• M13: 7,879,918 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.1

Radius: 8.4

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.03 AU - 1.67 AU

Year: 1013 Days

Day: 9.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,082,418 km

• M1: 106,514 km (0.055 R)
• M2: 376,837 km (0.077 R)
• M3: 651,648 km (0.108 R)
• M4: 1,002,306 km (0.115 R)
• M5: 1,334,563 km (0.065 R)
• M6: 1,829,133 km (0.109 R)
• M7: 2,312,484 km (0.099 R)
• M8: 2,574,430 km (0.118 R)
• M9: 2,924,190 km (0.111 R)
• M10: 3,469,623 km (0.068 R)
• M11: 3,746,679 km (0.104 R)
• M12: 5,006,592 km (0.062 R)
• M13: 5,571,623 km (0.089 R)
• M14: 6,235,838 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.3

Radius: 13.9

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.4 AU - 2.04 AU

Year: 1456 Days

Day: 14.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,082,418 km

• M1: 174,282 km (0.106 R)
• M2: 670,049 km (0.096 R)
• M3: 1,300,305 km (0.036 R)
• M4: 2,935,858 km (0.103 R)
• M5: 4,492,274 km (0.077 R)
• M6: 5,233,382 km (0.103 R)
• M7: 5,786,595 km (0.044 R)
• M8: 6,378,704 km (0.078 R)
• M9: 7,239,340 km (0.057 R)
• M10: 8,232,221 km (0.07 R)
• M11: 9,905,174 km (0.043 R)
• M12: 10,488,307 km (0.034 R)
• M13: 11,652,328 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.7

Radius: 8.4

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.68 AU - 1.84 AU

Year: 1508 Days

Day: 7.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,082,418 km

• M1: 109,506 km (0.075 R)
• M2: 406,457 km (0.056 R)
• M3: 778,208 km (0.081 R)
• M4: 1,044,343 km (0.065 R)
• M5: 1,976,487 km (0.074 R)
• M6: 3,297,287 km (0.088 R)
• M7: 3,935,172 km (0.12 R)
• M8: 4,996,419 km (0.111 R)
• M9: 8,179,264 km (0.061 R)
• M10: 9,315,759 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 14.5

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.81 AU - 2.77 AU

Year: 2238 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,082,418 km

• M1: 183,108 km (0.119 R)
• M2: 719,117 km (0.069 R)
• M3: 1,774,680 km (0.044 R)
• M4: 2,689,770 km (0.062 R)
• M5: 3,146,492 km (0.069 R)
• M6: 3,711,224 km (0.051 R)
• M7: 4,707,995 km (0.117 R)
• M8: 5,163,520 km (0.095 R)
• M9: 5,623,534 km (0.107 R)
• M10: 6,111,223 km (0.099 R)
• M11: 7,380,112 km (0.094 R)
• M12: 9,694,391 km (0.075 R)
• M13: 10,474,544 km (0.07 R)
• M14: 11,057,078 km (0.108 R)
• M15: 12,244,885 km (0.103 R)
• M16: 15,511,055 km (0.067 R)
• M17: 17,157,829 km (0.109 R)
• M18: 17,641,329 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.6

Radius: 8.6

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.52 AU - 2.74 AU

Year: 2754 Days

Day: 6.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,082,418 km

• M1: 109,206 km (0.084 R)
• M2: 511,625 km (0.092 R)
• M3: 900,729 km (0.098 R)
• M4: 1,169,407 km (0.111 R)
• M5: 1,726,210 km (0.109 R)
• M6: 2,021,815 km (0.047 R)
• M7: 2,379,055 km (0.093 R)
• M8: 2,905,041 km (0.11 R)
• M9: 3,750,119 km (0.098 R)
• M10: 4,550,169 km (0.11 R)
• M11: 4,979,216 km (0.083 R)
• M12: 5,410,207 km (0.075 R)
• M13: 6,402,190 km (0.044 R)
• M14: 7,418,858 km (0.095 R)
• M15: 7,791,207 km (0.094 R)
• M16: 8,110,897 km (0.082 R)
• M17: 8,776,608 km (0.053 R)
• M18: 11,314,536 km (0.069 R)
• M19: 11,934,021 km (0.06 R)
• M20: 12,488,879 km (0.083 R)
• M21: 15,828,352 km (0.116 R)
• M22: 16,394,131 km (0.115 R)
• M23: 17,675,138 km (0.043 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.9

Radius: 12.9

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 4.9 AU - 7.06 AU

Year: 9442 Days

Day: 12 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 43,082,418 km

• M1: 160,369 km (0.062 R)
• M2: 815,159 km (0.066 R)
• M3: 1,688,960 km (0.107 R)
• M4: 2,146,281 km (0.066 R)
• M5: 2,866,445 km (0.096 R)
• M6: 3,386,148 km (0.109 R)
• M7: 3,942,801 km (0.05 R)
• M8: 4,937,029 km (0.077 R)
• M9: 5,493,533 km (0.063 R)
• M10: 6,230,452 km (0.119 R)
• M11: 7,108,592 km (0.099 R)
• M12: 7,617,673 km (0.116 R)
• M13: 8,151,139 km (0.066 R)
• M14: 10,539,170 km (0.096 R)
• M15: 11,202,487 km (0.114 R)
• M16: 11,947,933 km (0.093 R)
• M17: 13,012,023 km (0.086 R)
• M18: 14,077,608 km (0.119 R)
• M19: 15,072,733 km (0.066 R)
• M20: 16,247,825 km (0.115 R)
• M21: 18,195,739 km (0.073 R)
• M22: 19,985,677 km (0.108 R)
• M23: 21,483,750 km (0.082 R)
• M24: 23,140,247 km (0.083 R)
• M25: 24,174,268 km (0.039 R)
• M26: 27,940,095 km (0.043 R)
• M27: 34,685,014 km (0.104 R)
• M28: 35,244,810 km (0.068 R)
• M29: 37,544,727 km (0.068 R)
• M30: 40,065,601 km (0.105 R)
• M31: 42,569,420 km (0.071 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 14,395 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit