🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.9

Radius: 12.1

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.51 AU - 0.71 AU

Year: 318 Days

Day: 8.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,524,770 km

• M1: 150,495 km (0.066 R)
• M2: 526,734 km (0.114 R)
• M3: 996,621 km (0.116 R)
• M4: 1,504,356 km (0.077 R)
• M5: 2,158,996 km (0.111 R)
• M6: 2,566,950 km (0.101 R)
• M7: 2,966,227 km (0.116 R)
• M8: 3,385,250 km (0.034 R)
• M9: 4,489,283 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 13.9

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.55 AU - 0.69 AU

Year: 326 Days

Day: 9.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,524,770 km

• M1: 172,935 km (0.112 R)
• M2: 614,997 km (0.096 R)
• M3: 1,241,812 km (0.117 R)
• M4: 1,751,342 km (0.107 R)
• M5: 2,449,366 km (0.089 R)
• M6: 3,171,026 km (0.107 R)
• M7: 3,603,962 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.8

Radius: 12.6

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.7 AU - 0.76 AU

Year: 416 Days

Day: 5 Hours

Environment

Temp: -155 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,524,770 km

• M1: 157,078 km (0.115 R)
• M2: 613,650 km (0.118 R)
• M3: 1,030,879 km (0.11 R)
• M4: 1,448,107 km (0.108 R)
• M5: 2,033,035 km (0.074 R)
• M6: 2,578,768 km (0.115 R)
• M7: 3,056,284 km (0.101 R)
• M8: 3,895,977 km (0.047 R)
• M9: 4,541,791 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.8

Radius: 9.5

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.9 AU - 1.28 AU

Year: 759 Days

Day: 10.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,524,770 km

• M1: 120,127 km (0.112 R)
• M2: 498,161 km (0.078 R)
• M3: 796,309 km (0.026 R)
• M4: 1,167,013 km (0.114 R)
• M5: 2,043,507 km (0.105 R)
• M6: 2,380,701 km (0.05 R)
• M7: 2,707,273 km (0.116 R)
• M8: 3,136,918 km (0.107 R)
• M9: 3,565,516 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.6

Radius: 10.8

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.26 AU - 1.36 AU

Year: 1000 Days

Day: 8.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,524,770 km

• M1: 144,512 km (0.098 R)
• M2: 495,618 km (0.045 R)
• M3: 984,504 km (0.099 R)
• M4: 1,359,396 km (0.1 R)
• M5: 2,305,602 km (0.109 R)
• M6: 2,821,865 km (0.092 R)
• M7: 3,425,342 km (0.094 R)
• M8: 3,776,449 km (0.112 R)
• M9: 4,732,977 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.2

Radius: 10.3

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.71 AU - 2.23 AU

Year: 1844 Days

Day: 7.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,524,770 km

• M1: 128,056 km (0.063 R)
• M2: 457,470 km (0.111 R)
• M3: 950,844 km (0.097 R)
• M4: 1,365,829 km (0.062 R)
• M5: 1,796,072 km (0.096 R)
• M6: 2,390,724 km (0.101 R)
• M7: 3,204,237 km (0.069 R)
• M8: 3,778,693 km (0.067 R)
• M9: 4,818,847 km (0.071 R)
• M10: 5,350,517 km (0.11 R)
• M11: 6,136,205 km (0.109 R)
• M12: 6,787,405 km (0.115 R)
• M13: 7,129,984 km (0.114 R)
• M14: 7,539,583 km (0.106 R)
• M15: 7,936,167 km (0.074 R)
• M16: 8,496,411 km (0.081 R)
• M17: 9,114,549 km (0.096 R)
• M18: 10,755,937 km (0.111 R)
• M19: 11,815,539 km (0.071 R)
• M20: 13,430,448 km (0.107 R)
• M21: 13,887,619 km (0.069 R)
• M22: 14,269,393 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.8

Radius: 11.5

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.11 AU - 2.95 AU

Year: 2684 Days

Day: 7.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,524,770 km

• M1: 143,016 km (0.071 R)
• M2: 513,719 km (0.113 R)
• M3: 1,183,768 km (0.054 R)
• M4: 1,786,199 km (0.118 R)
• M5: 2,497,088 km (0.114 R)
• M6: 2,894,719 km (0.074 R)
• M7: 3,858,279 km (0.116 R)
• M8: 4,371,699 km (0.059 R)
• M9: 4,907,109 km (0.111 R)
• M10: 5,337,054 km (0.084 R)
• M11: 8,435,674 km (0.088 R)
• M12: 9,303,641 km (0.098 R)
• M13: 10,578,514 km (0.109 R)
• M14: 11,217,148 km (0.077 R)
• M15: 11,839,175 km (0.104 R)
• M16: 12,837,442 km (0.111 R)
• M17: 13,938,183 km (0.099 R)
• M18: 15,300,421 km (0.102 R)
• M19: 17,071,810 km (0.063 R)
• M20: 17,452,836 km (0.101 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: 232 - 16,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit