🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.72 AU - 0.72 AU

Year: 228 Days

Day: 35.6 Hours

Environment

Temp: 181 °C

Axial Tilt: 2.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.01 AU - 1.17 AU

Year: 424 Days

Day: 26.4 Hours

Environment

Temp: 21 °C

Axial Tilt: 25.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.79 AU - 2.13 AU

Year: 1023 Days

Day: 17 Hours

Environment

Temp: -68 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.73 AU - 2.19 AU

Year: 1023 Days

Day: 25.7 Hours

Environment

Temp: -62 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.78 AU - 2.28 AU

Year: 1078 Days

Day: 33.3 Hours

Environment

Temp: -74 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,897,203 km

• M1: 319,391 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.69 AU - 2.47 AU

Year: 1118 Days

Day: 45.7 Hours

Environment

Temp: -84 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,897,203 km

• M1: 51,910 km (0.104 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.93 AU - 3.29 AU

Year: 2045 Days

Day: 24 Hours

Environment

Temp: -105 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,897,203 km

• M1: 329,714 km (0.073 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.78 AU - 4.42 AU

Year: 2546 Days

Day: 34.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,897,203 km

• M1: 139,874 km (0.063 R)

Asteroid Belt

Center: 4.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 9.8

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.47 AU - 4.63 AU

Year: 3618 Days

Day: 12 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 18,897,203 km

• M1: 128,804 km (0.071 R)
• M2: 699,520 km (0.055 R)
• M3: 1,037,760 km (0.047 R)
• M4: 1,402,330 km (0.099 R)
• M5: 2,428,721 km (0.109 R)
• M6: 2,784,615 km (0.098 R)
• M7: 3,915,874 km (0.104 R)
• M8: 4,478,511 km (0.119 R)
• M9: 4,841,436 km (0.119 R)
• M10: 5,276,466 km (0.103 R)
• M11: 5,599,000 km (0.074 R)
• M12: 6,078,760 km (0.097 R)
• M13: 6,802,514 km (0.09 R)
• M14: 7,120,559 km (0.093 R)
• M15: 8,640,175 km (0.104 R)
• M16: 9,204,607 km (0.092 R)
• M17: 9,914,150 km (0.043 R)
• M18: 10,282,310 km (0.114 R)
• M19: 10,744,717 km (0.105 R)
• M20: 11,177,055 km (0.119 R)
• M21: 12,449,684 km (0.097 R)
• M22: 12,878,581 km (0.037 R)
• M23: 20,422,802 km (0.039 R)
• M24: 22,458,231 km (0.096 R)
• M25: 23,597,419 km (0.079 R)
• M26: 25,301,787 km (0.065 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.1

Radius: 11.3

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.59 AU - 7.13 AU

Year: 5288 Days

Day: 11.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 18,897,203 km

• M1: 140,472 km (0.087 R)
• M2: 547,827 km (0.078 R)
• M3: 1,090,568 km (0.114 R)
• M4: 1,942,528 km (0.105 R)
• M5: 2,499,182 km (0.085 R)
• M6: 3,061,371 km (0.085 R)
• M7: 5,533,027 km (0.089 R)
• M8: 6,302,259 km (0.116 R)
• M9: 6,657,105 km (0.099 R)
• M10: 7,467,178 km (0.117 R)
• M11: 7,958,906 km (0.113 R)
• M12: 8,570,761 km (0.057 R)
• M13: 9,007,288 km (0.117 R)
• M14: 9,423,469 km (0.118 R)
• M15: 10,257,028 km (0.087 R)
• M16: 11,659,508 km (0.086 R)
• M17: 12,449,385 km (0.094 R)
• M18: 13,814,167 km (0.102 R)
• M19: 15,325,105 km (0.1 R)
• M20: 16,528,620 km (0.119 R)
• M21: 17,312,214 km (0.104 R)
• M22: 17,902,527 km (0.032 R)
• M23: 18,728,905 km (0.097 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 13,805 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit