🌌 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: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.64 AU - 0.64 AU

Year: 188 Days

Day: 14.8 Hours

Environment

Temp: 183 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,856,657 km

• M1: 79,736 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.68 AU - 0.86 AU

Year: 248 Days

Day: 45.4 Hours

Environment

Temp: 148 °C

Axial Tilt: 48.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.83 AU - 0.97 AU

Year: 313 Days

Day: 40.3 Hours

Environment

Temp: 74 °C

Axial Tilt: 9.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,856,657 km

• M1: 122,521 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.12 AU - 1.22 AU

Year: 465 Days

Day: 21.1 Hours

Environment

Temp: 10 °C

Axial Tilt: 15.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 70,856,657 km

• M1: 453,282 km (0.084 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.1 AU - 1.54 AU

Year: 557 Days

Day: 17.5 Hours

Environment

Temp: 3 °C

Axial Tilt: 33.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.38 AU - 1.94 AU

Year: 785 Days

Day: 38.7 Hours

Environment

Temp: -45 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.94 AU - 4.02 AU

Year: 2383 Days

Day: 42.7 Hours

Environment

Temp: -119 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,856,657 km

• M1: 21,243 km (0.11 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.91 AU - 4.07 AU

Year: 2926 Days

Day: 15.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,856,657 km

• M1: 933,192 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.4

Radius: 4.2

Gravity: 34.89 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 11.8 AU - 15.94 AU

Year: 18962 Days

Day: 20.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,856,657 km

• M1: 57,446 km (0.093 R)
• M2: 211,382 km (0.047 R)
• M3: 412,591 km (0.112 R)
• M4: 848,070 km (0.068 R)
• M5: 1,212,491 km (0.071 R)
• M6: 2,041,413 km (0.1 R)
• M7: 3,937,416 km (0.118 R)
• M8: 4,350,007 km (0.061 R)
• M9: 4,549,870 km (0.078 R)
• M10: 8,080,080 km (0.11 R)
• M11: 17,090,809 km (0.12 R)
• M12: 22,022,003 km (0.071 R)
• M13: 24,234,257 km (0.118 R)
• M14: 35,227,307 km (0.104 R)
• M15: 38,664,617 km (0.111 R)
• M16: 63,087,816 km (0.111 R)
• M17: 66,897,026 km (0.082 R)
• M18: 68,962,075 km (0.081 R)
• M19: 70,432,622 km (0.114 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 14,004 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit