🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.47 AU - 0.77 AU

Year: 181 Days

Day: 28.9 Hours

Environment

Temp: 213 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 93,448,486 km

• M1: 61,335 km (0.06 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2 AU - 2.3 AU

Year: 1169 Days

Day: 47.9 Hours

Environment

Temp: -70 °C

Axial Tilt: 92 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,448,486 km

• M1: 173,982 km (0.1 R)

Asteroid Belt

Center: 5.17 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.1

Radius: 13.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 7.8 AU - 8.58 AU

Year: 8692 Days

Day: 13.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 93,448,486 km

• M1: 169,046 km (0.107 R)
• M2: 875,596 km (0.107 R)
• M3: 1,534,725 km (0.052 R)
• M4: 2,100,504 km (0.107 R)
• M5: 3,018,287 km (0.042 R)
• M6: 4,767,086 km (0.111 R)
• M7: 5,368,768 km (0.074 R)
• M8: 6,900,651 km (0.118 R)
• M9: 7,596,729 km (0.092 R)
• M10: 9,215,378 km (0.094 R)
• M11: 10,198,236 km (0.043 R)
• M12: 10,620,102 km (0.108 R)
• M13: 13,512,727 km (0.113 R)
• M14: 16,190,230 km (0.111 R)
• M15: 17,754,574 km (0.086 R)
• M16: 18,229,249 km (0.117 R)
• M17: 20,140,062 km (0.1 R)
• M18: 21,106,315 km (0.115 R)
• M19: 24,356,777 km (0.1 R)
• M20: 30,268,137 km (0.025 R)
• M21: 33,451,580 km (0.073 R)

Planet 4 - Ice Giant

Semi-Major Axis: 16.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.5

Radius: 3.8

Gravity: 58.69 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 14.89 AU - 17.77 AU

Year: 24473 Days

Day: 15.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 93,448,486 km

• M1: 47,273 km (0.047 R)
• M2: 216,917 km (0.116 R)
• M3: 875,746 km (0.079 R)
• M4: 1,454,690 km (0.115 R)
• M5: 2,301,713 km (0.042 R)
• M6: 2,469,562 km (0.075 R)
• M7: 3,434,468 km (0.047 R)
• M8: 4,626,464 km (0.082 R)
• M9: 6,579,165 km (0.085 R)
• M10: 7,682,449 km (0.069 R)
• M11: 11,103,304 km (0.058 R)
• M12: 12,436,969 km (0.097 R)
• M13: 13,029,227 km (0.092 R)
• M14: 14,189,956 km (0.116 R)
• M15: 14,836,518 km (0.059 R)
• M16: 18,270,986 km (0.117 R)
• M17: 18,555,222 km (0.117 R)
• M18: 28,138,911 km (0.091 R)
• M19: 31,267,152 km (0.097 R)
• M20: 31,402,239 km (0.106 R)
• M21: 35,787,850 km (0.044 R)
• M22: 39,136,449 km (0.067 R)
• M23: 40,725,328 km (0.11 R)
• M24: 42,356,543 km (0.097 R)
• M25: 43,188,307 km (0.08 R)
• M26: 45,056,335 km (0.05 R)
• M27: 47,154,894 km (0.079 R)
• M28: 48,589,538 km (0.046 R)
• M29: 50,238,107 km (0.102 R)
• M30: 51,357,547 km (0.086 R)
• M31: 51,545,742 km (0.091 R)
• M32: 51,734,384 km (0.111 R)
• M33: 58,220,948 km (0.076 R)
• M34: 65,892,177 km (0.116 R)
• M35: 68,363,983 km (0.076 R)
• M36: 68,819,957 km (0.118 R)
• M37: 71,130,197 km (0.11 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 19,699 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit