🌌 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 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.53 AU - 0.75 AU

Year: 336 Days

Day: 33.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.6

Radius: 13.1

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.6 AU - 0.92 AU

Year: 435 Days

Day: 14.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,408,893 km

• M1: 162,912 km (0.119 R)
• M2: 585,676 km (0.063 R)
• M3: 1,030,729 km (0.108 R)
• M4: 1,563,747 km (0.097 R)
• M5: 2,024,209 km (0.049 R)
• M6: 2,670,920 km (0.116 R)
• M7: 3,183,443 km (0.12 R)
• M8: 3,860,074 km (0.116 R)
• M9: 4,560,790 km (0.093 R)
• M10: 5,174,890 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.1

Radius: 8.4

Gravity: 8.33 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.29 AU - 1.41 AU

Year: 1029 Days

Day: 14.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,408,893 km

• M1: 104,419 km (0.082 R)
• M2: 396,584 km (0.083 R)
• M3: 806,931 km (0.062 R)
• M4: 1,480,421 km (0.079 R)
• M5: 1,815,071 km (0.089 R)
• M6: 2,210,757 km (0.104 R)
• M7: 2,989,414 km (0.026 R)
• M8: 3,413,375 km (0.054 R)
• M9: 3,876,829 km (0.1 R)
• M10: 4,347,913 km (0.101 R)
• M11: 5,443,717 km (0.056 R)
• M12: 6,056,021 km (0.094 R)
• M13: 6,379,003 km (0.116 R)
• M14: 7,225,278 km (0.111 R)
• M15: 7,888,595 km (0.08 R)
• M16: 8,196,168 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118

Radius: 13.9

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.21 AU - 2.69 AU

Year: 2516 Days

Day: 8.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,408,893 km

• M1: 191,784 km (0.079 R)
• M2: 693,985 km (0.048 R)
• M3: 1,230,891 km (0.084 R)
• M4: 2,088,835 km (0.093 R)
• M5: 2,546,006 km (0.068 R)
• M6: 3,247,620 km (0.054 R)
• M7: 3,899,268 km (0.104 R)
• M8: 5,153,647 km (0.118 R)
• M9: 5,586,583 km (0.049 R)
• M10: 8,156,226 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.9

Radius: 12.2

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.09 AU - 2.93 AU

Year: 2609 Days

Day: 9.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,408,893 km

• M1: 151,692 km (0.051 R)
• M2: 614,847 km (0.091 R)
• M3: 1,056,311 km (0.118 R)
• M4: 1,512,135 km (0.079 R)
• M5: 2,099,905 km (0.096 R)
• M6: 2,588,492 km (0.11 R)
• M7: 3,016,641 km (0.076 R)
• M8: 3,510,763 km (0.119 R)
• M9: 4,375,439 km (0.063 R)
• M10: 5,035,165 km (0.102 R)
• M11: 5,945,468 km (0.086 R)
• M12: 7,419,007 km (0.046 R)
• M13: 7,895,626 km (0.071 R)
• M14: 9,412,848 km (0.089 R)
• M15: 9,896,198 km (0.083 R)
• M16: 10,318,214 km (0.108 R)
• M17: 11,656,666 km (0.076 R)
• M18: 13,758,666 km (0.11 R)
• M19: 18,526,948 km (0.099 R)
• M20: 19,346,894 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.7

Radius: 8.3

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.18 AU - 6.44 AU

Year: 9187 Days

Day: 9.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,408,893 km

• M1: 103,223 km (0.119 R)
• M2: 373,247 km (0.055 R)
• M3: 658,979 km (0.077 R)
• M4: 1,769,593 km (0.118 R)
• M5: 6,525,459 km (0.076 R)
• M6: 8,748,783 km (0.063 R)
• M7: 9,603,735 km (0.053 R)
• M8: 13,943,419 km (0.074 R)
• M9: 21,295,855 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392.3

Radius: 5.7

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.63 AU - 7.47 AU

Year: 10997 Days

Day: 24.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 42,408,893 km

• M1: 70,909 km (0.068 R)
• M2: 435,629 km (0.071 R)
• M3: 641,625 km (0.06 R)
• M4: 1,040,752 km (0.115 R)
• M5: 1,419,534 km (0.118 R)
• M6: 1,606,232 km (0.086 R)
• M7: 1,839,904 km (0.096 R)
• M8: 2,079,261 km (0.051 R)
• M9: 2,680,195 km (0.107 R)
• M10: 3,579,877 km (0.112 R)
• M11: 4,085,368 km (0.118 R)
• M12: 4,438,569 km (0.043 R)
• M13: 5,299,953 km (0.094 R)
• M14: 5,853,914 km (0.034 R)
• M15: 6,517,830 km (0.072 R)
• M16: 7,269,709 km (0.087 R)
• M17: 7,666,592 km (0.098 R)
• M18: 10,506,857 km (0.102 R)
• M19: 11,751,661 km (0.102 R)
• M20: 12,861,677 km (0.105 R)
• M21: 15,352,481 km (0.089 R)
• M22: 18,219,525 km (0.098 R)
• M23: 20,085,309 km (0.103 R)
• M24: 21,829,321 km (0.086 R)
• M25: 22,321,947 km (0.066 R)
• M26: 23,159,396 km (0.082 R)
• M27: 23,757,937 km (0.116 R)
• M28: 24,807,964 km (0.104 R)
• M29: 25,164,755 km (0.074 R)
• M30: 30,018,608 km (0.118 R)
• M31: 30,935,344 km (0.107 R)
• M32: 34,567,131 km (0.082 R)
• M33: 41,151,382 km (0.075 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 18,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit