🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.7

Radius: 13.8

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.59 AU - 0.83 AU

Year: 406 Days

Day: 12.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,443,473 km

• M1: 171,589 km (0.099 R)
• M2: 823,387 km (0.03 R)
• M3: 1,291,329 km (0.075 R)
• M4: 1,730,099 km (0.068 R)
• M5: 2,528,354 km (0.062 R)
• M6: 3,085,007 km (0.075 R)
• M7: 3,676,218 km (0.098 R)
• M8: 4,239,005 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228

Radius: 11.7

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.42 AU - 1.6 AU

Year: 1259 Days

Day: 14.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 84.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,443,473 km

• M1: 146,008 km (0.098 R)
• M2: 515,365 km (0.112 R)
• M3: 927,806 km (0.093 R)
• M4: 1,786,498 km (0.098 R)
• M5: 2,195,050 km (0.072 R)
• M6: 3,373,731 km (0.103 R)
• M7: 4,764,842 km (0.116 R)
• M8: 5,395,546 km (0.115 R)
• M9: 6,975,450 km (0.052 R)
• M10: 7,374,876 km (0.076 R)
• M11: 8,342,325 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.7

Radius: 10

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.68 AU - 1.78 AU

Year: 1543 Days

Day: 7.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,443,473 km

• M1: 124,316 km (0.066 R)
• M2: 574,456 km (0.116 R)
• M3: 892,950 km (0.107 R)
• M4: 1,313,469 km (0.05 R)
• M5: 1,709,604 km (0.047 R)
• M6: 2,077,466 km (0.087 R)
• M7: 2,411,966 km (0.073 R)
• M8: 2,747,365 km (0.111 R)
• M9: 3,152,326 km (0.036 R)
• M10: 4,176,473 km (0.112 R)
• M11: 4,903,669 km (0.083 R)
• M12: 5,483,809 km (0.061 R)
• M13: 6,272,639 km (0.085 R)
• M14: 6,979,040 km (0.101 R)
• M15: 8,347,860 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.4

Radius: 9.8

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.21 AU - 4.35 AU

Year: 6006 Days

Day: 6.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,443,473 km

• M1: 121,922 km (0.098 R)
• M2: 502,948 km (0.108 R)
• M3: 1,031,029 km (0.1 R)
• M4: 1,808,638 km (0.1 R)
• M5: 3,374,479 km (0.11 R)
• M6: 3,764,481 km (0.084 R)
• M7: 5,146,316 km (0.038 R)
• M8: 6,154,456 km (0.114 R)
• M9: 7,079,270 km (0.051 R)
• M10: 9,837,706 km (0.095 R)
• M11: 10,866,640 km (0.112 R)
• M12: 11,479,093 km (0.116 R)
• M13: 13,832,717 km (0.092 R)
• M14: 17,490,235 km (0.078 R)
• M15: 18,862,496 km (0.076 R)
• M16: 25,073,800 km (0.07 R)
• M17: 25,481,454 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.3

Radius: 13

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.75 AU - 5.31 AU

Year: 7651 Days

Day: 14.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,443,473 km

• M1: 161,715 km (0.095 R)
• M2: 590,313 km (0.09 R)
• M3: 1,364,781 km (0.116 R)
• M4: 1,808,489 km (0.104 R)
• M5: 4,514,714 km (0.102 R)
• M6: 5,408,412 km (0.036 R)
• M7: 6,067,390 km (0.106 R)
• M8: 6,726,818 km (0.11 R)
• M9: 11,620,015 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.6

Radius: 4.2

Gravity: 19.99 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 5.82 AU - 7.52 AU

Year: 11684 Days

Day: 20.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 21,443,473 km

• M1: 52,210 km (0.09 R)
• M2: 201,658 km (0.047 R)
• M3: 590,612 km (0.035 R)
• M4: 871,557 km (0.058 R)
• M5: 2,387,732 km (0.119 R)
• M6: 2,557,525 km (0.104 R)
• M7: 3,365,802 km (0.085 R)
• M8: 5,340,644 km (0.069 R)
• M9: 5,967,908 km (0.104 R)
• M10: 6,317,219 km (0.113 R)
• M11: 6,606,392 km (0.056 R)
• M12: 7,526,718 km (0.119 R)
• M13: 8,749,082 km (0.071 R)
• M14: 8,972,431 km (0.049 R)
• M15: 10,847,342 km (0.092 R)
• M16: 12,012,559 km (0.081 R)
• M17: 15,221,284 km (0.087 R)
• M18: 16,406,099 km (0.116 R)
• M19: 17,021,096 km (0.096 R)
• M20: 17,229,336 km (0.067 R)
• M21: 18,296,717 km (0.11 R)
• M22: 20,095,033 km (0.086 R)
• M23: 23,777,834 km (0.113 R)
• M24: 26,747,800 km (0.111 R)
• M25: 28,565,115 km (0.026 R)
• M26: 29,955,777 km (0.035 R)
• M27: 37,943,854 km (0.052 R)
• M28: 38,180,668 km (0.107 R)
• M29: 41,726,287 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 12.6

Radius: 7.9

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.29 AU - 11.09 AU

Year: 22062 Days

Day: 15.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,443,473 km

• M1: 98,286 km (0.044 R)
• M2: 361,428 km (0.084 R)
• M3: 746,493 km (0.038 R)
• M4: 1,085,781 km (0.081 R)
• M5: 2,533,440 km (0.114 R)
• M6: 2,798,527 km (0.104 R)
• M7: 3,786,920 km (0.097 R)
• M8: 5,359,643 km (0.069 R)
• M9: 6,234,940 km (0.098 R)
• M10: 7,419,606 km (0.117 R)
• M11: 8,924,411 km (0.119 R)
• M12: 15,044,759 km (0.036 R)
• M13: 15,555,336 km (0.086 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 550 - 11,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit