🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.45 AU - 0.57 AU

Year: 134 Days

Day: 40.5 Hours

Environment

Temp: 197 °C

Axial Tilt: 4.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.83 AU - 1.13 AU

Year: 356 Days

Day: 17.3 Hours

Environment

Temp: 38 °C

Axial Tilt: 37.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.09 AU - 1.37 AU

Year: 501 Days

Day: 37.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 30 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.2 AU - 1.5 AU

Year: 576 Days

Day: 16.7 Hours

Environment

Temp: 2 °C

Axial Tilt: 5.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 60,439,099 km

• M1: 49,068 km (0.029 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.3 AU - 1.8 AU

Year: 708 Days

Day: 15.9 Hours

Environment

Temp: -44 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.85 AU - 2.67 AU

Year: 1247 Days

Day: 20.1 Hours

Environment

Temp: -71 °C

Axial Tilt: 13.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,439,099 km

• M1: 50,564 km (0.109 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.2 AU - 3.22 AU

Year: 1638 Days

Day: 40 Hours

Environment

Temp: -103 °C

Axial Tilt: 47.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.99 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 13.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 436.1

Radius: 6

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 12.78 AU - 13.76 AU

Year: 17745 Days

Day: 24.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 156.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,439,099 km

• M1: 87,664 km (0.098 R)
• M2: 286,630 km (0.054 R)
• M3: 682,914 km (0.119 R)
• M4: 1,531,733 km (0.083 R)
• M5: 2,405,534 km (0.099 R)
• M6: 2,729,862 km (0.111 R)
• M7: 3,710,775 km (0.12 R)
• M8: 5,394,050 km (0.076 R)
• M9: 6,262,167 km (0.064 R)
• M10: 7,756,799 km (0.053 R)
• M11: 9,739,121 km (0.063 R)
• M12: 10,962,083 km (0.107 R)
• M13: 11,431,072 km (0.077 R)
• M14: 11,731,016 km (0.118 R)
• M15: 12,097,830 km (0.071 R)
• M16: 12,535,404 km (0.097 R)
• M17: 13,441,967 km (0.083 R)
• M18: 14,530,890 km (0.119 R)
• M19: 18,805,051 km (0.037 R)
• M20: 19,476,895 km (0.099 R)
• M21: 21,316,649 km (0.098 R)
• M22: 21,771,128 km (0.106 R)
• M23: 32,512,554 km (0.111 R)
• M24: 38,202,509 km (0.096 R)
• M25: 42,343,528 km (0.119 R)
• M26: 44,227,114 km (0.08 R)
• M27: 48,005,358 km (0.04 R)
• M28: 50,855,198 km (0.085 R)
• M29: 54,320,034 km (0.109 R)
• M30: 59,001,849 km (0.071 R)
• M31: 59,538,157 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 11,726 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit