🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.67

Radius: 1.23

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.51 AU - 0.67 AU

Year: 288 Days

Day: 37.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,499,864 km

• M1: 60,886 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.2

Radius: 10.3

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.72 AU - 0.98 AU

Year: 498 Days

Day: 9.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,499,864 km

• M1: 128,205 km (0.119 R)
• M2: 500,704 km (0.094 R)
• M3: 956,678 km (0.048 R)
• M4: 1,377,048 km (0.11 R)
• M5: 1,820,307 km (0.116 R)
• M6: 2,194,002 km (0.078 R)
• M7: 2,574,131 km (0.087 R)
• M8: 2,909,679 km (0.112 R)
• M9: 3,392,281 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.7

Radius: 13.5

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.68 AU - 1.1 AU

Year: 534 Days

Day: 11.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,499,864 km

• M1: 167,849 km (0.078 R)
• M2: 689,347 km (0.059 R)
• M3: 1,127,070 km (0.094 R)
• M4: 1,576,462 km (0.107 R)
• M5: 2,051,286 km (0.048 R)
• M6: 2,660,299 km (0.116 R)
• M7: 3,691,178 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.4

Radius: 14.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.42 AU - 2.64 AU

Year: 2559 Days

Day: 13 Hours

Environment

Temp: -193 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,499,864 km

• M1: 176,525 km (0.054 R)
• M2: 1,066,334 km (0.096 R)
• M3: 1,616,255 km (0.098 R)
• M4: 2,269,101 km (0.119 R)
• M5: 3,234,156 km (0.075 R)
• M6: 4,263,539 km (0.074 R)
• M7: 4,865,671 km (0.116 R)
• M8: 5,875,307 km (0.093 R)
• M9: 6,701,386 km (0.072 R)
• M10: 7,892,484 km (0.076 R)
• M11: 8,804,134 km (0.046 R)
• M12: 9,751,088 km (0.079 R)
• M13: 10,910,023 km (0.102 R)
• M14: 11,694,215 km (0.045 R)
• M15: 13,628,067 km (0.105 R)
• M16: 15,258,085 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777

Radius: 11.2

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.28 AU - 4.38 AU

Year: 4766 Days

Day: 6.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,499,864 km

• M1: 140,024 km (0.063 R)
• M2: 528,230 km (0.099 R)
• M3: 1,452,147 km (0.056 R)
• M4: 1,982,172 km (0.093 R)
• M5: 2,340,758 km (0.096 R)
• M6: 3,036,986 km (0.072 R)
• M7: 4,142,963 km (0.099 R)
• M8: 11,143,994 km (0.069 R)
• M9: 13,153,692 km (0.072 R)
• M10: 14,436,344 km (0.103 R)
• M11: 17,125,366 km (0.066 R)
• M12: 19,789,106 km (0.096 R)
• M13: 21,687,203 km (0.086 R)
• M14: 23,935,211 km (0.067 R)
• M15: 25,760,903 km (0.119 R)
• M16: 27,000,321 km (0.108 R)
• M17: 27,677,551 km (0.114 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 16,190 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit