🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.57 AU - 0.77 AU

Year: 349 Days

Day: 41.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,070,639 km

• M1: 427,252 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.4

Radius: 8.9

Gravity: 10 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.7 AU - 0.92 AU

Year: 464 Days

Day: 8.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,070,639 km

• M1: 110,702 km (0.051 R)
• M2: 410,945 km (0.087 R)
• M3: 807,679 km (0.108 R)
• M4: 1,213,538 km (0.117 R)
• M5: 1,839,156 km (0.049 R)
• M6: 2,443,532 km (0.099 R)
• M7: 3,439,853 km (0.098 R)
• M8: 3,812,801 km (0.091 R)
• M9: 4,113,642 km (0.101 R)
• M10: 4,459,812 km (0.117 R)
• M11: 4,967,696 km (0.109 R)
• M12: 5,310,575 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.1

Radius: 12.1

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.7 AU - 3.32 AU

Year: 3320 Days

Day: 11.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,070,639 km

• M1: 150,495 km (0.103 R)
• M2: 662,120 km (0.112 R)
• M3: 1,115,851 km (0.11 R)
• M4: 1,532,929 km (0.103 R)
• M5: 2,360,355 km (0.08 R)
• M6: 2,809,298 km (0.051 R)
• M7: 3,352,339 km (0.049 R)
• M8: 4,070,408 km (0.03 R)
• M9: 4,535,059 km (0.059 R)
• M10: 5,035,016 km (0.111 R)
• M11: 7,974,165 km (0.103 R)
• M12: 9,142,375 km (0.033 R)
• M13: 10,180,434 km (0.092 R)
• M14: 10,666,328 km (0.105 R)
• M15: 11,210,266 km (0.109 R)
• M16: 11,684,790 km (0.05 R)
• M17: 12,398,971 km (0.119 R)
• M18: 13,094,750 km (0.025 R)
• M19: 16,250,218 km (0.111 R)
• M20: 16,858,633 km (0.038 R)
• M21: 20,132,133 km (0.079 R)
• M22: 22,018,413 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.5

Radius: 12.4

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.99 AU - 3.61 AU

Year: 3812 Days

Day: 8.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 46,070,639 km

• M1: 154,235 km (0.105 R)
• M2: 663,018 km (0.094 R)
• M3: 1,167,911 km (0.106 R)
• M4: 1,706,014 km (0.086 R)
• M5: 2,626,490 km (0.097 R)
• M6: 3,107,148 km (0.065 R)
• M7: 3,545,619 km (0.084 R)
• M8: 4,025,529 km (0.105 R)
• M9: 4,620,031 km (0.037 R)
• M10: 5,325,385 km (0.09 R)
• M11: 6,731,455 km (0.089 R)
• M12: 7,142,999 km (0.109 R)
• M13: 7,775,050 km (0.101 R)
• M14: 8,774,065 km (0.116 R)
• M15: 9,578,004 km (0.1 R)
• M16: 10,223,070 km (0.063 R)
• M17: 10,683,233 km (0.11 R)
• M18: 12,903,564 km (0.101 R)
• M19: 13,491,185 km (0.053 R)
• M20: 14,354,215 km (0.069 R)
• M21: 17,340,488 km (0.091 R)
• M22: 17,935,887 km (0.039 R)
• M23: 18,668,169 km (0.081 R)
• M24: 20,918,420 km (0.106 R)
• M25: 24,070,148 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673

Radius: 12.6

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.75 AU - 4.41 AU

Year: 4307 Days

Day: 9.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,070,639 km

• M1: 156,779 km (0.109 R)
• M2: 659,577 km (0.048 R)
• M3: 1,396,347 km (0.079 R)
• M4: 1,847,235 km (0.117 R)
• M5: 2,411,518 km (0.109 R)
• M6: 3,277,390 km (0.077 R)
• M7: 4,387,556 km (0.117 R)
• M8: 5,790,934 km (0.102 R)
• M9: 6,472,202 km (0.071 R)
• M10: 11,194,409 km (0.055 R)
• M11: 14,146,573 km (0.103 R)
• M12: 15,661,700 km (0.088 R)
• M13: 20,316,737 km (0.094 R)
• M14: 24,361,415 km (0.085 R)
• M15: 26,373,207 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.3

Radius: 9

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.36 AU - 5.72 AU

Year: 8291 Days

Day: 6.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,070,639 km

• M1: 118,033 km (0.113 R)
• M2: 1,214,585 km (0.108 R)
• M3: 2,515,189 km (0.072 R)
• M4: 4,342,527 km (0.112 R)
• M5: 5,070,171 km (0.099 R)
• M6: 7,854,636 km (0.056 R)
• M7: 10,748,158 km (0.064 R)
• M8: 12,262,089 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.3

Radius: 3

Gravity: 56.59 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.11 AU - 8.21 AU

Year: 10928 Days

Day: 23 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 46,070,639 km

• M1: 37,848 km (0.091 R)
• M2: 240,404 km (0.062 R)
• M3: 582,983 km (0.104 R)
• M4: 1,091,765 km (0.092 R)
• M5: 1,395,449 km (0.029 R)
• M6: 1,559,857 km (0.12 R)
• M7: 1,706,762 km (0.073 R)
• M8: 3,095,330 km (0.115 R)
• M9: 6,001,119 km (0.106 R)
• M10: 6,736,542 km (0.108 R)
• M11: 7,285,865 km (0.11 R)
• M12: 8,295,950 km (0.109 R)
• M13: 8,472,924 km (0.116 R)
• M14: 8,926,355 km (0.026 R)
• M15: 9,253,227 km (0.088 R)
• M16: 9,395,793 km (0.093 R)
• M17: 12,332,400 km (0.091 R)
• M18: 13,697,331 km (0.097 R)
• M19: 14,257,724 km (0.058 R)
• M20: 15,291,595 km (0.113 R)
• M21: 17,147,656 km (0.095 R)
• M22: 17,945,013 km (0.039 R)
• M23: 21,631,403 km (0.047 R)
• M24: 23,254,540 km (0.115 R)
• M25: 27,811,591 km (0.089 R)
• M26: 28,809,408 km (0.049 R)
• M27: 32,818,631 km (0.117 R)
• M28: 35,301,657 km (0.081 R)
• M29: 38,885,274 km (0.042 R)
• M30: 39,256,426 km (0.082 R)
• M31: 40,257,685 km (0.101 R)
• M32: 42,703,759 km (0.093 R)
• M33: 44,568,198 km (0.103 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 18,504 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit