🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.66 AU - 0.7 AU

Year: 212 Days

Day: 16 Hours

Environment

Temp: 95 °C

Axial Tilt: 1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 89,272,053 km

• M1: 103,372 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.04 AU - 1.38 AU

Year: 504 Days

Day: 40.8 Hours

Environment

Temp: -8 °C

Axial Tilt: 4.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 89,272,053 km

• M1: 258,804 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.71 AU - 3.79 AU

Year: 2219 Days

Day: 21.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Ice Giant

Semi-Major Axis: 16.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416

Radius: 6.6

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 14.56 AU - 18.8 AU

Year: 25801 Days

Day: 15.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 89,272,053 km

• M1: 82,279 km (0.119 R)
• M2: 588,967 km (0.045 R)
• M3: 798,553 km (0.118 R)
• M4: 1,422,676 km (0.119 R)
• M5: 1,703,321 km (0.067 R)
• M6: 3,324,513 km (0.084 R)
• M7: 4,334,000 km (0.09 R)
• M8: 6,317,518 km (0.049 R)
• M9: 8,052,105 km (0.102 R)
• M10: 9,277,611 km (0.067 R)
• M11: 9,674,046 km (0.076 R)
• M12: 13,694,039 km (0.119 R)
• M13: 19,705,181 km (0.071 R)
• M14: 19,984,181 km (0.087 R)
• M15: 28,909,789 km (0.074 R)
• M16: 32,909,437 km (0.11 R)
• M17: 37,832,853 km (0.097 R)
• M18: 39,429,810 km (0.068 R)
• M19: 40,021,470 km (0.08 R)
• M20: 42,602,332 km (0.099 R)
• M21: 45,130,686 km (0.112 R)
• M22: 52,596,367 km (0.1 R)
• M23: 57,942,397 km (0.084 R)
• M24: 69,054,527 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 570.7

Radius: 4.9

Gravity: 23.77 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 13.88 AU - 21.22 AU

Year: 27846 Days

Day: 20.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 89,272,053 km

• M1: 60,886 km (0.117 R)
• M2: 222,901 km (0.108 R)
• M3: 923,019 km (0.042 R)
• M4: 3,567,311 km (0.081 R)
• M5: 4,470,732 km (0.094 R)
• M6: 5,642,981 km (0.089 R)
• M7: 8,028,768 km (0.04 R)
• M8: 8,631,648 km (0.08 R)
• M9: 9,323,089 km (0.053 R)
• M10: 9,988,799 km (0.096 R)
• M11: 15,896,270 km (0.115 R)
• M12: 17,829,673 km (0.106 R)
• M13: 23,119,753 km (0.115 R)
• M14: 23,777,534 km (0.052 R)
• M15: 24,110,988 km (0.119 R)
• M16: 27,742,177 km (0.07 R)
• M17: 36,949,178 km (0.065 R)
• M18: 37,998,757 km (0.12 R)
• M19: 44,212,753 km (0.077 R)
• M20: 46,425,605 km (0.079 R)
• M21: 47,823,447 km (0.074 R)
• M22: 48,000,122 km (0.064 R)
• M23: 58,604,367 km (0.07 R)
• M24: 61,063,308 km (0.064 R)
• M25: 65,748,414 km (0.119 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 542 - 19,663 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit