🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.48 AU - 0.66 AU

Year: 282 Days

Day: 21.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.54 AU - 0.7 AU

Year: 320 Days

Day: 14.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 26,619,617 km

• M1: 80,633 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.4

Radius: 12.1

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.8 AU - 1.08 AU

Year: 598 Days

Day: 5.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 26,619,617 km

• M1: 150,495 km (0.115 R)
• M2: 563,535 km (0.097 R)
• M3: 1,216,530 km (0.065 R)
• M4: 1,638,845 km (0.091 R)
• M5: 2,567,548 km (0.091 R)
• M6: 3,161,452 km (0.051 R)
• M7: 3,577,932 km (0.097 R)
• M8: 5,542,601 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.9

Radius: 10.9

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.73 AU - 2.83 AU

Year: 2258 Days

Day: 11.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 26,619,617 km

• M1: 135,536 km (0.118 R)
• M2: 474,524 km (0.032 R)
• M3: 939,026 km (0.12 R)
• M4: 1,515,726 km (0.106 R)
• M5: 2,019,272 km (0.087 R)
• M6: 2,942,740 km (0.054 R)
• M7: 3,509,566 km (0.116 R)
• M8: 3,986,334 km (0.054 R)
• M9: 5,094,107 km (0.097 R)
• M10: 5,480,817 km (0.083 R)
• M11: 5,913,454 km (0.066 R)
• M12: 6,451,408 km (0.111 R)
• M13: 8,165,501 km (0.036 R)
• M14: 9,829,328 km (0.113 R)
• M15: 10,508,054 km (0.058 R)
• M16: 11,420,451 km (0.047 R)
• M17: 13,769,437 km (0.084 R)
• M18: 14,619,302 km (0.094 R)
• M19: 15,008,107 km (0.08 R)
• M20: 15,755,797 km (0.064 R)
• M21: 16,267,871 km (0.064 R)
• M22: 16,950,187 km (0.115 R)
• M23: 19,227,515 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.6

Radius: 8.6

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.07 AU - 4.37 AU

Year: 4707 Days

Day: 5.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,619,617 km

• M1: 107,112 km (0.113 R)
• M2: 482,752 km (0.103 R)
• M3: 787,633 km (0.107 R)
• M4: 1,263,354 km (0.08 R)
• M5: 1,596,508 km (0.099 R)
• M6: 2,244,417 km (0.062 R)
• M7: 3,150,382 km (0.111 R)
• M8: 4,813,012 km (0.057 R)
• M9: 5,663,626 km (0.118 R)
• M10: 6,799,672 km (0.118 R)
• M11: 9,239,763 km (0.072 R)
• M12: 10,850,483 km (0.031 R)
• M13: 11,202,786 km (0.075 R)
• M14: 11,562,569 km (0.094 R)
• M15: 19,242,026 km (0.117 R)
• M16: 19,758,588 km (0.093 R)
• M17: 20,152,030 km (0.092 R)
• M18: 21,501,403 km (0.116 R)
• M19: 24,304,418 km (0.088 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: 178 - 15,756 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit