🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.63 AU - 0.65 AU

Year: 189 Days

Day: 32.9 Hours

Environment

Temp: 173 °C

Axial Tilt: 33 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.56 AU - 0.84 AU

Year: 216 Days

Day: 23.1 Hours

Environment

Temp: 177 °C

Axial Tilt: 5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.71 AU - 1.17 AU

Year: 336 Days

Day: 44.8 Hours

Environment

Temp: 33 °C

Axial Tilt: 20.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.62 AU - 2.16 AU

Year: 959 Days

Day: 40.4 Hours

Environment

Temp: -67 °C

Axial Tilt: 1.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.63 AU - 2.65 AU

Year: 1155 Days

Day: 38.5 Hours

Environment

Temp: -75 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,612,204 km

• M1: 396,734 km (0.077 R)

Asteroid Belt

Center: 3.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Terrestrial

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 4.19 AU - 5.01 AU

Year: 3640 Days

Day: 17.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 58,612,204 km

• M1: 47,572 km (0.095 R)
• M2: 97,538 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.3

Radius: 14.6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 4.8 AU - 4.8 AU

Year: 3880 Days

Day: 10.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,612,204 km

• M1: 185,352 km (0.117 R)
• M2: 1,052,720 km (0.113 R)
• M3: 1,669,512 km (0.059 R)
• M4: 2,584,154 km (0.089 R)
• M5: 4,615,543 km (0.083 R)
• M6: 6,248,254 km (0.111 R)
• M7: 6,791,743 km (0.106 R)
• M8: 8,476,963 km (0.099 R)
• M9: 12,128,647 km (0.117 R)
• M10: 13,253,623 km (0.078 R)
• M11: 13,817,757 km (0.118 R)
• M12: 15,247,613 km (0.102 R)
• M13: 16,450,380 km (0.065 R)
• M14: 20,376,726 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 299.3

Radius: 5

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 13.16 AU - 15.92 AU

Year: 20456 Days

Day: 24.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,612,204 km

• M1: 63,280 km (0.113 R)
• M2: 229,782 km (0.037 R)
• M3: 1,279,810 km (0.054 R)
• M4: 1,857,557 km (0.084 R)
• M5: 3,377,471 km (0.083 R)
• M6: 4,127,106 km (0.101 R)
• M7: 4,307,671 km (0.111 R)
• M8: 5,015,717 km (0.11 R)
• M9: 5,504,902 km (0.081 R)
• M10: 5,873,512 km (0.104 R)
• M11: 8,153,084 km (0.052 R)
• M12: 12,835,946 km (0.088 R)
• M13: 16,742,545 km (0.108 R)
• M14: 20,058,830 km (0.096 R)
• M15: 37,433,277 km (0.104 R)
• M16: 42,887,615 km (0.083 R)
• M17: 53,996,603 km (0.116 R)
• M18: 55,846,531 km (0.112 R)
• M19: 56,016,773 km (0.092 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 20,059 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit