🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.3

Radius: 13.4

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 12.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,108,663 km

• M1: 166,652 km (0.052 R)
• M2: 606,619 km (0.091 R)
• M3: 1,075,459 km (0.053 R)
• M4: 1,553,275 km (0.066 R)
• M5: 2,456,995 km (0.094 R)
• M6: 2,918,654 km (0.054 R)
• M7: 3,416,666 km (0.064 R)
• M8: 3,886,852 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.6

Radius: 9.5

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.58 AU - 0.7 AU

Year: 341 Days

Day: 10.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 65,108,663 km

• M1: 118,182 km (0.114 R)
• M2: 635,791 km (0.067 R)
• M3: 1,029,533 km (0.105 R)
• M4: 1,646,025 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.4

Radius: 10.8

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.78 AU - 0.82 AU

Year: 477 Days

Day: 6.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,108,663 km

• M1: 134,788 km (0.115 R)
• M2: 473,926 km (0.082 R)
• M3: 815,907 km (0.067 R)
• M4: 1,339,051 km (0.089 R)
• M5: 3,081,866 km (0.08 R)
• M6: 3,721,696 km (0.027 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.1

Radius: 12.8

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.83 AU - 1.37 AU

Year: 769 Days

Day: 9.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,108,663 km

• M1: 161,715 km (0.063 R)
• M2: 661,223 km (0.079 R)
• M3: 1,330,374 km (0.094 R)
• M4: 2,070,883 km (0.077 R)
• M5: 2,994,501 km (0.118 R)
• M6: 3,437,161 km (0.102 R)
• M7: 4,017,002 km (0.115 R)
• M8: 5,568,033 km (0.048 R)
• M9: 5,991,245 km (0.078 R)
• M10: 7,755,303 km (0.104 R)
• M11: 8,677,275 km (0.085 R)
• M12: 9,275,666 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.9

Radius: 8.4

Gravity: 13.6 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.94 AU - 1.28 AU

Year: 780 Days

Day: 7.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 71.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,108,663 km

• M1: 104,569 km (0.096 R)
• M2: 440,117 km (0.077 R)
• M3: 858,542 km (0.112 R)
• M4: 1,514,080 km (0.104 R)
• M5: 1,974,841 km (0.1 R)
• M6: 2,789,252 km (0.101 R)
• M7: 3,083,511 km (0.073 R)
• M8: 3,586,011 km (0.056 R)
• M9: 4,077,589 km (0.055 R)
• M10: 5,623,085 km (0.104 R)
• M11: 8,488,333 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.3

Radius: 8.2

Gravity: 12.1 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.19 AU - 1.23 AU

Year: 888 Days

Day: 7.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,108,663 km

• M1: 102,175 km (0.085 R)
• M2: 371,900 km (0.096 R)
• M3: 713,432 km (0.083 R)
• M4: 1,037,461 km (0.117 R)
• M5: 1,435,990 km (0.118 R)
• M6: 1,953,449 km (0.031 R)
• M7: 2,272,242 km (0.103 R)
• M8: 2,589,838 km (0.106 R)
• M9: 2,924,190 km (0.068 R)
• M10: 3,231,613 km (0.041 R)
• M11: 3,725,735 km (0.09 R)
• M12: 4,071,605 km (0.055 R)
• M13: 4,387,406 km (0.097 R)
• M14: 5,012,426 km (0.101 R)
• M15: 6,285,055 km (0.081 R)
• M16: 7,810,804 km (0.047 R)
• M17: 8,646,458 km (0.043 R)
• M18: 9,453,837 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.7

Radius: 13.9

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.23 AU - 1.43 AU

Year: 1023 Days

Day: 10.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,108,663 km

• M1: 172,935 km (0.12 R)
• M2: 719,566 km (0.073 R)
• M3: 1,180,776 km (0.117 R)
• M4: 1,648,718 km (0.056 R)
• M5: 2,210,309 km (0.063 R)
• M6: 2,796,134 km (0.103 R)
• M7: 3,295,192 km (0.117 R)
• M8: 3,982,744 km (0.081 R)
• M9: 5,281,403 km (0.095 R)
• M10: 5,730,197 km (0.118 R)
• M11: 6,293,433 km (0.085 R)
• M12: 6,798,774 km (0.093 R)
• M13: 7,331,193 km (0.111 R)
• M14: 8,075,592 km (0.11 R)
• M15: 9,477,025 km (0.029 R)
• M16: 10,050,284 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.5

Radius: 12.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.4 AU - 1.42 AU

Year: 1116 Days

Day: 12.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,108,663 km

• M1: 151,842 km (0.09 R)
• M2: 546,930 km (0.096 R)
• M3: 992,432 km (0.101 R)
• M4: 1,465,910 km (0.077 R)
• M5: 2,161,689 km (0.03 R)
• M6: 2,557,525 km (0.079 R)
• M7: 3,243,731 km (0.1 R)
• M8: 3,660,959 km (0.113 R)
• M9: 4,551,964 km (0.055 R)
• M10: 5,463,015 km (0.077 R)
• M11: 6,250,199 km (0.12 R)
• M12: 7,254,599 km (0.074 R)
• M13: 8,549,967 km (0.083 R)
• M14: 10,174,151 km (0.076 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.4

Radius: 10.5

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.58 AU - 2.92 AU

Year: 3041 Days

Day: 11.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,108,663 km

• M1: 130,749 km (0.099 R)
• M2: 473,477 km (0.082 R)
• M3: 898,485 km (0.118 R)
• M4: 1,622,239 km (0.088 R)
• M5: 4,457,269 km (0.112 R)
• M6: 4,960,516 km (0.117 R)
• M7: 5,577,906 km (0.114 R)
• M8: 5,918,840 km (0.072 R)
• M9: 7,208,224 km (0.051 R)
• M10: 8,815,803 km (0.105 R)
• M11: 9,684,817 km (0.099 R)
• M12: 11,383,500 km (0.097 R)
• M13: 11,805,516 km (0.062 R)
• M14: 14,267,299 km (0.068 R)
• M15: 17,943,217 km (0.094 R)
• M16: 18,922,934 km (0.111 R)
• M17: 19,277,182 km (0.057 R)
• M18: 20,613,988 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.2

Radius: 5.7

Gravity: 10.56 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 8.37 AU - 12.43 AU

Year: 22366 Days

Day: 16.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,108,663 km

• M1: 70,909 km (0.086 R)
• M2: 456,573 km (0.118 R)
• M3: 981,212 km (0.074 R)
• M4: 1,379,741 km (0.085 R)
• M5: 2,283,013 km (0.076 R)
• M6: 5,387,468 km (0.11 R)
• M7: 5,918,840 km (0.103 R)
• M8: 6,237,633 km (0.12 R)
• M9: 7,308,604 km (0.081 R)
• M10: 12,115,483 km (0.074 R)
• M11: 12,695,025 km (0.106 R)
• M12: 14,905,932 km (0.09 R)
• M13: 18,097,303 km (0.057 R)
• M14: 30,816,114 km (0.083 R)
• M15: 35,020,114 km (0.094 R)
• M16: 50,550,018 km (0.082 R)
• M17: 58,153,330 km (0.102 R)
• M18: 61,471,560 km (0.054 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: 240 - 13,731 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit