🌌 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 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.6

Radius: 12

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.56 AU - 0.72 AU

Year: 347 Days

Day: 10.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,828,499 km

• M1: 149,299 km (0.117 R)
• M2: 525,687 km (0.062 R)
• M3: 1,387,221 km (0.082 R)
• M4: 1,964,519 km (0.102 R)
• M5: 2,833,533 km (0.067 R)
• M6: 3,423,398 km (0.114 R)
• M7: 3,893,733 km (0.04 R)
• M8: 4,287,924 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.2

Radius: 10.5

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.57 AU - 0.75 AU

Year: 364 Days

Day: 5.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 65.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 57,828,499 km

• M1: 130,599 km (0.084 R)
• M2: 606,320 km (0.082 R)
• M3: 950,395 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.4

Radius: 12.4

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.65 AU - 0.69 AU

Year: 372 Days

Day: 6.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,828,499 km

• M1: 154,235 km (0.102 R)
• M2: 564,283 km (0.064 R)
• M3: 1,279,660 km (0.104 R)
• M4: 1,734,737 km (0.067 R)
• M5: 2,385,039 km (0.119 R)
• M6: 3,181,947 km (0.113 R)
• M7: 3,596,333 km (0.069 R)
• M8: 4,175,127 km (0.108 R)
• M9: 5,136,892 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.7

Radius: 10.9

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.74 AU - 0.76 AU

Year: 441 Days

Day: 11.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,828,499 km

• M1: 136,732 km (0.117 R)
• M2: 495,468 km (0.081 R)
• M3: 837,299 km (0.115 R)
• M4: 1,470,697 km (0.115 R)
• M5: 2,261,770 km (0.085 R)
• M6: 3,139,611 km (0.113 R)
• M7: 4,146,554 km (0.101 R)
• M8: 4,641,424 km (0.115 R)
• M9: 5,891,015 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.9

Radius: 8.9

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.87 AU - 0.87 AU

Year: 550 Days

Day: 12.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 88.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,828,499 km

• M1: 110,702 km (0.085 R)
• M2: 426,204 km (0.099 R)
• M3: 768,484 km (0.091 R)
• M4: 1,045,839 km (0.088 R)
• M5: 1,612,515 km (0.076 R)
• M6: 2,006,407 km (0.112 R)
• M7: 2,381,449 km (0.12 R)
• M8: 2,746,168 km (0.108 R)
• M9: 3,197,654 km (0.07 R)
• M10: 3,481,292 km (0.071 R)
• M11: 3,909,591 km (0.1 R)
• M12: 4,450,836 km (0.066 R)
• M13: 4,822,138 km (0.115 R)
• M14: 5,499,218 km (0.045 R)
• M15: 5,794,823 km (0.095 R)
• M16: 6,357,610 km (0.078 R)
• M17: 6,956,451 km (0.039 R)
• M18: 7,683,047 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447

Radius: 12.3

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.17 AU - 1.29 AU

Year: 925 Days

Day: 12.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,828,499 km

• M1: 153,039 km (0.063 R)
• M2: 600,486 km (0.12 R)
• M3: 1,228,647 km (0.108 R)
• M4: 1,957,039 km (0.048 R)
• M5: 2,478,538 km (0.095 R)
• M6: 2,993,154 km (0.055 R)
• M7: 3,442,247 km (0.058 R)
• M8: 4,070,857 km (0.115 R)
• M9: 4,575,152 km (0.119 R)
• M10: 5,391,507 km (0.096 R)
• M11: 6,405,332 km (0.108 R)
• M12: 7,611,689 km (0.113 R)
• M13: 8,183,452 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.4

Radius: 9.9

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.26 AU - 3.64 AU

Year: 3437 Days

Day: 11.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,828,499 km

• M1: 123,119 km (0.105 R)
• M2: 432,637 km (0.101 R)
• M3: 1,188,705 km (0.071 R)
• M4: 1,542,354 km (0.095 R)
• M5: 2,194,302 km (0.101 R)
• M6: 2,658,803 km (0.053 R)
• M7: 3,036,986 km (0.066 R)
• M8: 3,634,630 km (0.036 R)
• M9: 4,163,458 km (0.107 R)
• M10: 4,993,876 km (0.101 R)
• M11: 5,931,107 km (0.114 R)
• M12: 7,581,770 km (0.034 R)
• M13: 8,054,349 km (0.115 R)
• M14: 8,714,974 km (0.09 R)
• M15: 9,994,783 km (0.112 R)
• M16: 11,682,547 km (0.106 R)
• M17: 12,270,915 km (0.062 R)
• M18: 12,746,935 km (0.091 R)
• M19: 14,014,478 km (0.113 R)
• M20: 16,328,009 km (0.12 R)
• M21: 18,488,352 km (0.091 R)
• M22: 19,114,419 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.7

Radius: 14.4

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.14 AU - 4.3 AU

Year: 4866 Days

Day: 8.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,828,499 km

• M1: 179,218 km (0.073 R)
• M2: 844,480 km (0.068 R)
• M3: 1,660,387 km (0.069 R)
• M4: 2,116,810 km (0.074 R)
• M5: 2,763,521 km (0.099 R)
• M6: 3,518,991 km (0.047 R)
• M7: 4,287,026 km (0.075 R)
• M8: 4,763,495 km (0.083 R)
• M9: 5,444,764 km (0.118 R)
• M10: 6,768,406 km (0.073 R)
• M11: 8,605,618 km (0.115 R)
• M12: 12,176,967 km (0.086 R)
• M13: 12,677,522 km (0.116 R)
• M14: 13,507,042 km (0.119 R)
• M15: 17,950,548 km (0.106 R)
• M16: 18,468,755 km (0.086 R)
• M17: 18,930,414 km (0.078 R)
• M18: 22,010,933 km (0.068 R)
• M19: 22,830,580 km (0.113 R)
• M20: 23,825,256 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 351.6

Radius: 5.4

Gravity: 12.06 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 7.29 AU - 10.83 AU

Year: 18496 Days

Day: 19 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,828,499 km

• M1: 73,602 km (0.119 R)
• M2: 282,291 km (0.115 R)
• M3: 495,468 km (0.12 R)
• M4: 1,117,945 km (0.069 R)
• M5: 1,404,275 km (0.032 R)
• M6: 1,771,388 km (0.096 R)
• M7: 2,480,482 km (0.113 R)
• M8: 2,673,164 km (0.099 R)
• M9: 3,363,409 km (0.12 R)
• M10: 3,763,882 km (0.095 R)
• M11: 4,377,234 km (0.055 R)
• M12: 4,627,661 km (0.118 R)
• M13: 4,987,443 km (0.114 R)
• M14: 5,191,495 km (0.116 R)
• M15: 6,821,214 km (0.067 R)
• M16: 7,115,473 km (0.11 R)
• M17: 9,469,096 km (0.108 R)
• M18: 11,105,548 km (0.103 R)
• M19: 11,337,125 km (0.119 R)
• M20: 13,372,254 km (0.098 R)
• M21: 17,362,030 km (0.11 R)
• M22: 19,290,795 km (0.06 R)
• M23: 20,393,182 km (0.075 R)
• M24: 24,240,839 km (0.109 R)
• M25: 24,728,827 km (0.088 R)
• M26: 25,223,398 km (0.109 R)
• M27: 26,540,009 km (0.108 R)
• M28: 37,451,079 km (0.118 R)
• M29: 38,630,209 km (0.114 R)
• M30: 39,698,937 km (0.106 R)
• M31: 40,924,592 km (0.11 R)
• M32: 43,451,150 km (0.042 R)
• M33: 46,527,930 km (0.089 R)
• M34: 53,603,759 km (0.12 R)
• M35: 55,436,333 km (0.102 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 17,258 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit