🌌 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: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.49 AU - 0.53 AU

Year: 133 Days

Day: 30.2 Hours

Environment

Temp: 219 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,360,308 km

• M1: 41,289 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.71 AU - 0.89 AU

Year: 261 Days

Day: 19.5 Hours

Environment

Temp: 136 °C

Axial Tilt: 47.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.94 AU - 1 AU

Year: 349 Days

Day: 21.6 Hours

Environment

Temp: 46 °C

Axial Tilt: 26.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.36 AU - 1.84 AU

Year: 739 Days

Day: 30.3 Hours

Environment

Temp: -46 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,360,308 km

• M1: 43,683 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.24 AU - 2.94 AU

Year: 1522 Days

Day: 46.7 Hours

Environment

Temp: -94 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.19 AU - 3.23 AU

Year: 1629 Days

Day: 29.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.82 AU - 4.04 AU

Year: 2846 Days

Day: 37.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.46 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 12.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.8

Radius: 3.2

Gravity: 41.29 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 10 AU - 15.98 AU

Year: 17100 Days

Day: 15.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 58,360,308 km

• M1: 48,919 km (0.084 R)
• M2: 150,944 km (0.077 R)
• M3: 316,399 km (0.06 R)
• M4: 427,252 km (0.106 R)
• M5: 564,582 km (0.115 R)
• M6: 1,006,794 km (0.117 R)
• M7: 1,162,375 km (0.107 R)
• M8: 2,005,060 km (0.053 R)
• M9: 2,760,829 km (0.099 R)
• M10: 3,856,932 km (0.065 R)
• M11: 5,979,576 km (0.065 R)
• M12: 6,172,408 km (0.119 R)
• M13: 6,985,473 km (0.08 R)
• M14: 7,286,164 km (0.107 R)
• M15: 8,673,385 km (0.092 R)
• M16: 9,223,158 km (0.104 R)
• M17: 9,325,632 km (0.112 R)
• M18: 10,840,311 km (0.089 R)
• M19: 10,954,454 km (0.089 R)
• M20: 13,939,230 km (0.082 R)
• M21: 14,972,652 km (0.085 R)
• M22: 19,533,742 km (0.059 R)
• M23: 20,043,721 km (0.1 R)
• M24: 20,215,759 km (0.047 R)
• M25: 22,727,507 km (0.117 R)
• M26: 23,291,491 km (0.089 R)
• M27: 23,864,750 km (0.075 R)
• M28: 24,058,030 km (0.115 R)
• M29: 26,252,182 km (0.115 R)
• M30: 26,355,106 km (0.057 R)
• M31: 28,576,185 km (0.107 R)
• M32: 30,463,213 km (0.096 R)
• M33: 31,033,779 km (0.065 R)
• M34: 37,524,531 km (0.115 R)
• M35: 40,602,059 km (0.102 R)
• M36: 41,710,729 km (0.105 R)
• M37: 44,278,875 km (0.113 R)
• M38: 47,710,950 km (0.044 R)
• M39: 50,836,049 km (0.045 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: 520 - 11,935 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit