🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.5 AU - 0.68 AU

Year: 166 Days

Day: 13.1 Hours

Environment

Temp: 173 °C

Axial Tilt: 169.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,159,030 km

• M1: 28,124 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.57 AU - 0.77 AU

Year: 201 Days

Day: 34.9 Hours

Environment

Temp: 131 °C

Axial Tilt: 5.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,159,030 km

• M1: 16,605 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.61 AU - 0.81 AU

Year: 220 Days

Day: 14.8 Hours

Environment

Temp: 150 °C

Axial Tilt: 29.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.92 AU - 1 AU

Year: 345 Days

Day: 34.6 Hours

Environment

Temp: 33 °C

Axial Tilt: 25.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.15 AU - 1.47 AU

Year: 550 Days

Day: 33.3 Hours

Environment

Temp: -9 °C

Axial Tilt: 48.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.37 AU - 4.27 AU

Year: 2741 Days

Day: 42.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 19.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.7

Radius: 4.2

Gravity: 18.8 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 18.15 AU - 19.93 AU

Year: 30498 Days

Day: 15.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,159,030 km

• M1: 102,475 km (0.097 R)
• M2: 647,908 km (0.055 R)
• M3: 2,501,276 km (0.114 R)
• M4: 4,744,796 km (0.091 R)
• M5: 8,800,843 km (0.076 R)
• M6: 12,999,457 km (0.048 R)
• M7: 17,139,278 km (0.073 R)
• M8: 23,315,875 km (0.091 R)
• M9: 28,725,783 km (0.113 R)
• M10: 29,455,821 km (0.077 R)
• M11: 31,334,770 km (0.11 R)
• M12: 33,425,400 km (0.062 R)
• M13: 37,882,070 km (0.064 R)
• M14: 39,650,467 km (0.114 R)
• M15: 45,448,132 km (0.107 R)
• M16: 49,496,101 km (0.108 R)
• M17: 62,054,394 km (0.097 R)
• M18: 72,922,828 km (0.062 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 13,176 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit