🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.5

Radius: 10.2

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.74 AU - 0.76 AU

Year: 441 Days

Day: 10.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,736,284 km

• M1: 126,859 km (0.108 R)
• M2: 543,639 km (0.086 R)
• M3: 884,273 km (0.069 R)
• M4: 1,329,775 km (0.099 R)
• M5: 1,820,157 km (0.088 R)
• M6: 2,173,807 km (0.117 R)
• M7: 2,693,510 km (0.091 R)
• M8: 3,066,308 km (0.068 R)
• M9: 5,610,967 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10

Radius: 14.1

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.73 AU - 0.79 AU

Year: 449 Days

Day: 14.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 44,736,284 km

• M1: 177,722 km (0.115 R)
• M2: 764,296 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.5

Radius: 10.7

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.88 AU - 0.98 AU

Year: 608 Days

Day: 13.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,736,284 km

• M1: 133,142 km (0.112 R)
• M2: 565,929 km (0.117 R)
• M3: 977,173 km (0.115 R)
• M4: 1,463,666 km (0.097 R)
• M5: 2,213,600 km (0.111 R)
• M6: 3,165,042 km (0.078 R)
• M7: 3,582,121 km (0.099 R)
• M8: 4,738,513 km (0.086 R)
• M9: 5,180,574 km (0.072 R)
• M10: 5,520,909 km (0.081 R)
• M11: 5,857,205 km (0.119 R)
• M12: 6,949,419 km (0.108 R)
• M13: 7,476,303 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.8

Radius: 14.4

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.07 AU - 1.15 AU

Year: 793 Days

Day: 9.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 44,736,284 km

• M1: 179,069 km (0.109 R)
• M2: 654,939 km (0.106 R)
• M3: 1,127,968 km (0.076 R)
• M4: 1,824,496 km (0.059 R)
• M5: 2,341,057 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.6

Radius: 12

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.23 AU - 1.39 AU

Year: 1017 Days

Day: 13.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 75.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,736,284 km

• M1: 149,299 km (0.041 R)
• M2: 731,085 km (0.103 R)
• M3: 1,126,622 km (0.063 R)
• M4: 1,555,668 km (0.081 R)
• M5: 2,812,889 km (0.083 R)
• M6: 3,205,284 km (0.081 R)
• M7: 3,689,083 km (0.042 R)
• M8: 5,107,421 km (0.113 R)
• M9: 6,270,096 km (0.082 R)
• M10: 7,290,503 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.8

Radius: 11.7

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.02 AU - 3.14 AU

Year: 2811 Days

Day: 13.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,736,284 km

• M1: 153,936 km (0.078 R)
• M2: 529,277 km (0.117 R)
• M3: 1,272,330 km (0.1 R)
• M4: 1,820,756 km (0.109 R)
• M5: 2,317,720 km (0.079 R)
• M6: 3,288,161 km (0.03 R)
• M7: 4,718,766 km (0.03 R)
• M8: 5,252,531 km (0.082 R)
• M9: 9,270,879 km (0.104 R)
• M10: 12,566,820 km (0.077 R)
• M11: 13,309,124 km (0.106 R)
• M12: 14,129,668 km (0.054 R)
• M13: 15,189,420 km (0.096 R)
• M14: 18,806,098 km (0.079 R)
• M15: 19,963,088 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.8

Radius: 10.5

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.12 AU - 3.06 AU

Year: 2827 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,736,284 km

• M1: 130,749 km (0.103 R)
• M2: 751,131 km (0.12 R)
• M3: 1,633,609 km (0.086 R)
• M4: 2,329,388 km (0.097 R)
• M5: 2,983,879 km (0.098 R)
• M6: 3,880,120 km (0.086 R)
• M7: 6,676,553 km (0.111 R)
• M8: 7,370,687 km (0.095 R)
• M9: 8,024,131 km (0.117 R)
• M10: 8,871,453 km (0.06 R)
• M11: 10,886,536 km (0.098 R)
• M12: 11,546,412 km (0.1 R)
• M13: 12,665,255 km (0.104 R)
• M14: 14,983,723 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.8

Radius: 14.9

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.32 AU - 4.84 AU

Year: 5590 Days

Day: 9.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,736,284 km

• M1: 185,501 km (0.075 R)
• M2: 804,986 km (0.081 R)
• M3: 1,543,700 km (0.043 R)
• M4: 2,485,120 km (0.085 R)
• M5: 3,319,128 km (0.064 R)
• M6: 4,071,904 km (0.028 R)
• M7: 4,981,908 km (0.097 R)
• M8: 6,312,581 km (0.091 R)
• M9: 7,032,745 km (0.112 R)
• M10: 8,871,603 km (0.108 R)
• M11: 9,562,595 km (0.066 R)
• M12: 10,628,031 km (0.053 R)
• M13: 11,528,162 km (0.1 R)
• M14: 13,082,483 km (0.095 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.9

Radius: 14.4

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.2 AU - 6.48 AU

Year: 8370 Days

Day: 12 Hours

Environment

Temp: -229 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,736,284 km

• M1: 179,069 km (0.046 R)
• M2: 693,536 km (0.052 R)
• M3: 1,200,373 km (0.099 R)
• M4: 2,484,521 km (0.109 R)
• M5: 2,947,078 km (0.047 R)
• M6: 4,212,227 km (0.118 R)
• M7: 4,756,165 km (0.082 R)
• M8: 7,420,354 km (0.059 R)
• M9: 9,641,732 km (0.06 R)
• M10: 10,852,727 km (0.097 R)
• M11: 13,272,772 km (0.113 R)
• M12: 14,322,201 km (0.095 R)
• M13: 20,659,017 km (0.119 R)
• M14: 24,618,424 km (0.084 R)
• M15: 25,355,194 km (0.098 R)
• M16: 28,050,498 km (0.066 R)
• M17: 28,753,160 km (0.098 R)
• M18: 29,570,413 km (0.076 R)
• M19: 30,193,488 km (0.075 R)
• M20: 31,789,697 km (0.065 R)
• M21: 35,966,769 km (0.105 R)
• M22: 41,783,134 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 444.9

Radius: 8

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 6.46 AU - 6.5 AU

Year: 11188 Days

Day: 15.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,736,284 km

• M1: 128,953 km (0.057 R)
• M2: 1,111,213 km (0.071 R)
• M3: 5,579,253 km (0.085 R)
• M4: 6,020,566 km (0.109 R)
• M5: 7,245,922 km (0.103 R)
• M6: 10,944,879 km (0.116 R)
• M7: 12,021,535 km (0.094 R)
• M8: 12,874,094 km (0.076 R)
• M9: 15,409,927 km (0.064 R)
• M10: 16,621,670 km (0.068 R)
• M11: 19,157,503 km (0.116 R)
• M12: 23,039,269 km (0.071 R)
• M13: 25,254,963 km (0.026 R)
• M14: 38,733,731 km (0.12 R)
• M15: 41,471,522 km (0.091 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: 338 - 11,968 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit