🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.64 AU - 0.68 AU

Year: 168 Days

Day: 39 Hours

Environment

Temp: 274 °C

Axial Tilt: 16.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.63 AU - 0.75 AU

Year: 180 Days

Day: 18.8 Hours

Environment

Temp: 301 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 60,814,538 km

• M1: 62,233 km (0.087 R)
• M2: 233,971 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.81 AU - 0.87 AU

Year: 241 Days

Day: 26.9 Hours

Environment

Temp: 199 °C

Axial Tilt: 73.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,814,538 km

• M1: 57,894 km (0.085 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.72 AU - 1.06 AU

Year: 263 Days

Day: 36.4 Hours

Environment

Temp: 200 °C

Axial Tilt: 11.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.55 AU - 1.81 AU

Year: 682 Days

Day: 38.1 Hours

Environment

Temp: 31 °C

Axial Tilt: 28.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.59 AU - 2.17 AU

Year: 807 Days

Day: 13.4 Hours

Environment

Temp: 29 °C

Axial Tilt: 37.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 5.74 AU - 7.84 AU

Year: 5541 Days

Day: 31.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.66 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.9

Radius: 11

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 8.95 AU - 12.09 AU

Year: 10687 Days

Day: 11.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,814,538 km

• M1: 137,929 km (0.084 R)
• M2: 617,241 km (0.098 R)
• M3: 1,167,761 km (0.092 R)
• M4: 1,599,201 km (0.09 R)
• M5: 2,173,059 km (0.105 R)
• M6: 2,836,076 km (0.043 R)
• M7: 3,324,962 km (0.109 R)
• M8: 4,149,546 km (0.073 R)
• M9: 4,564,381 km (0.071 R)
• M10: 5,238,618 km (0.069 R)
• M11: 5,582,544 km (0.118 R)
• M12: 6,469,958 km (0.073 R)
• M13: 7,029,604 km (0.117 R)
• M14: 8,665,307 km (0.114 R)
• M15: 9,853,713 km (0.043 R)
• M16: 11,431,072 km (0.086 R)
• M17: 12,370,098 km (0.061 R)
• M18: 18,006,946 km (0.116 R)
• M19: 21,642,623 km (0.119 R)
• M20: 23,912,472 km (0.088 R)
• M21: 28,076,080 km (0.114 R)
• M22: 28,707,831 km (0.083 R)
• M23: 30,771,235 km (0.066 R)
• M24: 37,046,566 km (0.062 R)
• M25: 37,552,207 km (0.099 R)
• M26: 41,492,166 km (0.066 R)
• M27: 42,037,450 km (0.108 R)
• M28: 42,725,900 km (0.09 R)
• M29: 44,550,844 km (0.103 R)
• M30: 46,867,667 km (0.109 R)
• M31: 48,808,250 km (0.071 R)
• M32: 50,646,658 km (0.111 R)
• M33: 53,812,598 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.2

Radius: 12.1

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 11.5 AU - 15.1 AU

Year: 15191 Days

Day: 7.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,814,538 km

• M1: 150,495 km (0.12 R)
• M2: 553,512 km (0.119 R)
• M3: 1,042,548 km (0.099 R)
• M4: 1,707,809 km (0.089 R)
• M5: 2,310,838 km (0.105 R)
• M6: 2,910,576 km (0.069 R)
• M7: 3,324,065 km (0.102 R)
• M8: 4,240,352 km (0.085 R)
• M9: 4,677,177 km (0.051 R)
• M10: 5,247,893 km (0.106 R)
• M11: 7,157,211 km (0.098 R)
• M12: 7,870,793 km (0.112 R)
• M13: 8,878,634 km (0.081 R)
• M14: 9,388,014 km (0.09 R)
• M15: 10,079,157 km (0.103 R)
• M16: 13,717,975 km (0.085 R)
• M17: 18,642,139 km (0.103 R)
• M18: 19,141,197 km (0.073 R)
• M19: 21,862,831 km (0.097 R)
• M20: 23,944,336 km (0.03 R)
• M21: 29,272,115 km (0.104 R)
• M22: 30,060,196 km (0.101 R)
• M23: 33,598,635 km (0.038 R)
• M24: 37,934,280 km (0.113 R)
• M25: 39,005,999 km (0.108 R)
• M26: 45,714,566 km (0.118 R)
• M27: 46,928,254 km (0.043 R)
• M28: 58,656,727 km (0.115 R)
• M29: 59,729,194 km (0.088 R)

Kuiper Belt

Range: 35 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 12,310 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit