🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.88 AU - 0.92 AU

Year: 327 Days

Day: 25 Hours

Environment

Temp: 7 °C

Axial Tilt: 36.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 74,674,657 km

• M1: 33,211 km (0.043 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.84 AU - 1 AU

Year: 338 Days

Day: 40.5 Hours

Environment

Temp: 16 °C

Axial Tilt: 36.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.23 AU - 1.73 AU

Year: 689 Days

Day: 40.3 Hours

Environment

Temp: -59 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,674,657 km

• M1: 340,335 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.53 AU - 1.63 AU

Year: 760 Days

Day: 44.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.52 AU - 1.94 AU

Year: 871 Days

Day: 26 Hours

Environment

Temp: -67 °C

Axial Tilt: 44.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,674,657 km

• M1: 21,841 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.05 AU - 2.17 AU

Year: 1174 Days

Day: 27.1 Hours

Environment

Temp: -82 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 74,674,657 km

• M1: 36,801 km (0.054 R)
• M2: 1,424,172 km (0.071 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.82 AU - 2.84 AU

Year: 1362 Days

Day: 13.8 Hours

Environment

Temp: -87 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,674,657 km

• M1: 115,190 km (0.119 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.25 AU - 4.63 AU

Year: 2994 Days

Day: 30.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 41.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,674,657 km

• M1: 216,319 km (0.053 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 539.5

Radius: 7.3

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 14.61 AU - 15.09 AU

Year: 21911 Days

Day: 24.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,674,657 km

• M1: 90,806 km (0.114 R)
• M2: 438,172 km (0.103 R)
• M3: 781,499 km (0.08 R)
• M4: 1,342,042 km (0.096 R)
• M5: 1,799,214 km (0.079 R)
• M6: 4,281,042 km (0.118 R)
• M7: 8,339,184 km (0.044 R)
• M8: 16,040,332 km (0.082 R)
• M9: 16,281,634 km (0.109 R)
• M10: 21,145,809 km (0.107 R)
• M11: 32,573,590 km (0.093 R)
• M12: 41,818,738 km (0.084 R)
• M13: 44,931,421 km (0.097 R)
• M14: 45,411,331 km (0.106 R)
• M15: 52,670,119 km (0.085 R)
• M16: 58,168,290 km (0.117 R)
• M17: 62,038,985 km (0.063 R)
• M18: 63,032,764 km (0.045 R)
• M19: 64,441,826 km (0.114 R)
• M20: 72,898,893 km (0.096 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 15,983 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit