🌌 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: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.48 AU - 0.54 AU

Year: 134 Days

Day: 35.5 Hours

Environment

Temp: 159 °C

Axial Tilt: 26 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 100,842,551 km

• M1: 29,471 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.82 AU - 1.22 AU

Year: 380 Days

Day: 14.8 Hours

Environment

Temp: 28 °C

Axial Tilt: 20 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 100,842,551 km

• M1: 747,840 km (0.08 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.85 AU - 1.33 AU

Year: 420 Days

Day: 30.8 Hours

Environment

Temp: 2 °C

Axial Tilt: 35 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.22 AU - 1.26 AU

Year: 509 Days

Day: 19.5 Hours

Environment

Temp: 0 °C

Axial Tilt: 0.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.31 AU - 1.53 AU

Year: 624 Days

Day: 12.8 Hours

Environment

Temp: -41 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,842,551 km

• M1: 31,416 km (0.038 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.59 AU - 1.99 AU

Year: 884 Days

Day: 43.3 Hours

Environment

Temp: -63 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,842,551 km

• M1: 42,336 km (0.063 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.19 AU - 3.53 AU

Year: 1785 Days

Day: 27.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 0.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.12 AU - 4.06 AU

Year: 2510 Days

Day: 15.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.8

Radius: 14.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 8.26 AU - 8.42 AU

Year: 8886 Days

Day: 12.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 100,842,551 km

• M1: 182,061 km (0.027 R)
• M2: 847,921 km (0.091 R)
• M3: 2,903,096 km (0.116 R)
• M4: 3,622,064 km (0.082 R)
• M5: 4,650,699 km (0.098 R)
• M6: 5,143,773 km (0.085 R)
• M7: 7,399,859 km (0.067 R)
• M8: 7,952,772 km (0.119 R)
• M9: 9,594,609 km (0.098 R)
• M10: 17,406,011 km (0.057 R)
• M11: 19,331,336 km (0.088 R)
• M12: 22,439,381 km (0.086 R)
• M13: 24,543,176 km (0.112 R)
• M14: 26,500,664 km (0.081 R)
• M15: 27,517,631 km (0.085 R)
• M16: 33,742,398 km (0.114 R)
• M17: 35,823,305 km (0.108 R)
• M18: 39,758,776 km (0.05 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 840.7

Radius: 7.5

Gravity: 14.95 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 16.45 AU - 19.01 AU

Year: 27545 Days

Day: 18.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 100,842,551 km

• M1: 95,443 km (0.056 R)
• M2: 454,179 km (0.116 R)
• M3: 1,705,565 km (0.119 R)
• M4: 2,474,947 km (0.097 R)
• M5: 8,971,384 km (0.089 R)
• M6: 11,305,111 km (0.025 R)
• M7: 11,873,882 km (0.092 R)
• M8: 14,506,057 km (0.028 R)
• M9: 20,679,961 km (0.104 R)
• M10: 23,757,787 km (0.114 R)
• M11: 24,220,942 km (0.048 R)
• M12: 25,646,909 km (0.063 R)
• M13: 31,912,068 km (0.116 R)
• M14: 33,769,326 km (0.066 R)
• M15: 35,246,006 km (0.112 R)
• M16: 37,229,674 km (0.095 R)
• M17: 37,697,766 km (0.108 R)
• M18: 40,754,050 km (0.096 R)
• M19: 45,198,453 km (0.047 R)
• M20: 47,354,458 km (0.113 R)
• M21: 49,766,574 km (0.102 R)
• M22: 55,846,680 km (0.099 R)
• M23: 63,729,441 km (0.084 R)
• M24: 75,515,509 km (0.026 R)
• M25: 88,120,177 km (0.097 R)
• M26: 89,508,595 km (0.096 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 159 - 11,976 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit