🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.7

Radius: 8.9

Gravity: 11.04 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.5 AU - 0.74 AU

Year: 343 Days

Day: 5.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,380,253 km

• M1: 110,702 km (0.08 R)
• M2: 396,734 km (0.104 R)
• M3: 676,482 km (0.106 R)
• M4: 1,076,057 km (0.12 R)
• M5: 1,475,484 km (0.097 R)
• M6: 2,028,398 km (0.101 R)
• M7: 2,398,951 km (0.044 R)
• M8: 2,865,697 km (0.099 R)
• M9: 3,391,833 km (0.049 R)
• M10: 3,916,771 km (0.069 R)
• M11: 4,232,722 km (0.116 R)
• M12: 5,284,246 km (0.033 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.4

Radius: 11.4

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.64 AU - 0.9 AU

Year: 475 Days

Day: 6.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,380,253 km

• M1: 141,819 km (0.087 R)
• M2: 536,159 km (0.082 R)
• M3: 1,021,753 km (0.081 R)
• M4: 1,434,494 km (0.062 R)
• M5: 1,850,825 km (0.104 R)
• M6: 2,312,484 km (0.05 R)
• M7: 3,161,302 km (0.075 R)
• M8: 3,651,983 km (0.057 R)
• M9: 4,220,156 km (0.094 R)
• M10: 5,260,908 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.2

Radius: 10

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.68 AU - 0.92 AU

Year: 503 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,380,253 km

• M1: 124,316 km (0.09 R)
• M2: 476,320 km (0.06 R)
• M3: 913,145 km (0.025 R)
• M4: 1,304,194 km (0.082 R)
• M5: 1,751,791 km (0.084 R)
• M6: 2,202,829 km (0.08 R)
• M7: 3,029,506 km (0.115 R)
• M8: 3,448,530 km (0.106 R)
• M9: 3,787,818 km (0.096 R)
• M10: 4,249,776 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.5

Radius: 13.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.01 AU - 1.01 AU

Year: 713 Days

Day: 9.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,380,253 km

• M1: 171,589 km (0.028 R)
• M2: 623,973 km (0.117 R)
• M3: 1,140,235 km (0.1 R)
• M4: 1,664,576 km (0.073 R)
• M5: 2,094,819 km (0.114 R)
• M6: 2,938,850 km (0.111 R)
• M7: 3,826,714 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.3

Radius: 10

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.1 AU - 1.46 AU

Year: 1018 Days

Day: 6.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,380,253 km

• M1: 124,316 km (0.094 R)
• M2: 451,486 km (0.032 R)
• M3: 1,246,749 km (0.103 R)
• M4: 1,890,019 km (0.056 R)
• M5: 2,316,373 km (0.111 R)
• M6: 2,899,057 km (0.047 R)
• M7: 4,147,451 km (0.037 R)
• M8: 4,609,858 km (0.11 R)
• M9: 5,347,525 km (0.081 R)
• M10: 5,723,465 km (0.1 R)
• M11: 7,743,485 km (0.099 R)
• M12: 8,307,918 km (0.037 R)
• M13: 8,642,718 km (0.105 R)
• M14: 9,103,030 km (0.083 R)
• M15: 9,762,607 km (0.094 R)
• M16: 10,680,540 km (0.099 R)
• M17: 11,076,675 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.3

Radius: 10.5

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.45 AU - 1.87 AU

Year: 1503 Days

Day: 12.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,380,253 km

• M1: 130,749 km (0.118 R)
• M2: 541,245 km (0.113 R)
• M3: 1,060,051 km (0.103 R)
• M4: 1,579,604 km (0.046 R)
• M5: 3,005,421 km (0.117 R)
• M6: 3,690,131 km (0.1 R)
• M7: 4,269,374 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.5

Radius: 11.2

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.04 AU - 2.14 AU

Year: 2124 Days

Day: 14 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,380,253 km

• M1: 139,276 km (0.066 R)
• M2: 535,860 km (0.043 R)
• M3: 1,100,292 km (0.067 R)
• M4: 1,616,854 km (0.111 R)
• M5: 2,174,255 km (0.036 R)
• M6: 2,972,510 km (0.081 R)
• M7: 3,454,514 km (0.071 R)
• M8: 4,020,443 km (0.076 R)
• M9: 4,471,780 km (0.069 R)
• M10: 4,956,626 km (0.078 R)
• M11: 6,901,698 km (0.064 R)
• M12: 7,675,717 km (0.091 R)
• M13: 8,971,833 km (0.109 R)
• M14: 10,194,646 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270

Radius: 12.1

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4 AU - 4.48 AU

Year: 6137 Days

Day: 11.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,380,253 km

• M1: 174,282 km (0.093 R)
• M2: 636,090 km (0.087 R)
• M3: 1,195,586 km (0.065 R)
• M4: 1,717,234 km (0.064 R)
• M5: 2,227,213 km (0.107 R)
• M6: 2,703,533 km (0.045 R)
• M7: 3,556,689 km (0.12 R)
• M8: 5,201,518 km (0.098 R)
• M9: 5,627,423 km (0.096 R)
• M10: 6,280,567 km (0.111 R)
• M11: 9,104,377 km (0.043 R)
• M12: 10,332,725 km (0.067 R)
• M13: 11,445,733 km (0.057 R)
• M14: 12,731,976 km (0.115 R)
• M15: 13,459,470 km (0.106 R)
• M16: 15,104,299 km (0.11 R)
• M17: 18,298,812 km (0.109 R)
• M18: 19,796,585 km (0.088 R)
• M19: 20,248,521 km (0.092 R)
• M20: 23,534,887 km (0.055 R)
• M21: 25,304,629 km (0.107 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: 198 - 16,408 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit