🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.54 AU - 0.62 AU

Year: 170 Days

Day: 29 Hours

Environment

Temp: 169 °C

Axial Tilt: 11.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 100,886,769 km

• M1: 45,179 km (0.12 R)
• M2: 103,073 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.5 AU - 0.72 AU

Year: 183 Days

Day: 38.3 Hours

Environment

Temp: 169 °C

Axial Tilt: 5.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.47 AU - 2.43 AU

Year: 1048 Days

Day: 38.6 Hours

Environment

Temp: -74 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,886,769 km

• M1: 80,932 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.81 AU - 2.59 AU

Year: 1256 Days

Day: 13.8 Hours

Environment

Temp: -95 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.45 AU - 4.07 AU

Year: 2807 Days

Day: 20.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,886,769 km

• M1: 744,399 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.2

Radius: 14.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.92 AU - 7.26 AU

Year: 6513 Days

Day: 7.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 100,886,769 km

• M1: 192,084 km (0.106 R)
• M2: 663,018 km (0.119 R)
• M3: 1,278,763 km (0.113 R)
• M4: 2,158,847 km (0.103 R)
• M5: 2,887,089 km (0.062 R)
• M6: 6,007,701 km (0.112 R)
• M7: 8,938,323 km (0.057 R)
• M8: 10,525,108 km (0.107 R)
• M9: 20,239,096 km (0.09 R)
• M10: 22,887,876 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.8

Radius: 11.8

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.28 AU - 10.68 AU

Year: 11238 Days

Day: 6.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 100,886,769 km

• M1: 147,055 km (0.103 R)
• M2: 533,765 km (0.113 R)
• M3: 1,447,060 km (0.08 R)
• M4: 2,393,716 km (0.1 R)
• M5: 2,834,580 km (0.113 R)
• M6: 4,206,243 km (0.058 R)
• M7: 5,141,828 km (0.096 R)
• M8: 5,882,338 km (0.067 R)
• M9: 6,870,432 km (0.109 R)
• M10: 7,691,275 km (0.085 R)
• M11: 8,165,949 km (0.115 R)
• M12: 8,576,446 km (0.097 R)
• M13: 9,663,424 km (0.119 R)
• M14: 13,876,549 km (0.075 R)
• M15: 14,284,951 km (0.106 R)
• M16: 14,761,420 km (0.119 R)
• M17: 17,171,442 km (0.037 R)
• M18: 17,915,542 km (0.12 R)
• M19: 20,054,193 km (0.062 R)
• M20: 27,760,278 km (0.052 R)
• M21: 31,608,085 km (0.119 R)
• M22: 32,214,405 km (0.088 R)
• M23: 32,725,581 km (0.115 R)
• M24: 37,911,840 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993.1

Radius: 3.5

Gravity: 81.07 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 13.88 AU - 18.74 AU

Year: 25360 Days

Day: 22.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 100,886,769 km

• M1: 44,879 km (0.101 R)
• M2: 314,305 km (0.113 R)
• M3: 661,522 km (0.07 R)
• M4: 802,892 km (0.075 R)
• M5: 1,238,820 km (0.12 R)
• M6: 1,581,698 km (0.048 R)
• M7: 2,233,646 km (0.032 R)
• M8: 2,378,008 km (0.093 R)
• M9: 4,404,311 km (0.054 R)
• M10: 4,867,017 km (0.097 R)
• M11: 6,071,579 km (0.037 R)
• M12: 9,050,372 km (0.077 R)
• M13: 21,072,206 km (0.113 R)
• M14: 22,044,144 km (0.077 R)
• M15: 29,035,600 km (0.055 R)
• M16: 29,299,940 km (0.085 R)
• M17: 30,373,454 km (0.084 R)
• M18: 35,832,280 km (0.086 R)
• M19: 39,112,214 km (0.113 R)
• M20: 39,273,331 km (0.066 R)
• M21: 41,573,847 km (0.078 R)
• M22: 57,288,505 km (0.08 R)
• M23: 75,286,924 km (0.049 R)
• M24: 92,937,079 km (0.12 R)
• M25: 99,381,605 km (0.097 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 412 - 18,491 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit