🌌 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: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.45 AU - 0.59 AU

Year: 134 Days

Day: 28.4 Hours

Environment

Temp: 191 °C

Axial Tilt: 18.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,352,592 km

• M1: 47,871 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.65 AU - 0.73 AU

Year: 205 Days

Day: 17.2 Hours

Environment

Temp: 134 °C

Axial Tilt: 25.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.77 AU - 0.89 AU

Year: 271 Days

Day: 33.4 Hours

Environment

Temp: 161 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.98 AU - 1.62 AU

Year: 531 Days

Day: 41.7 Hours

Environment

Temp: -6 °C

Axial Tilt: 38.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,352,592 km

• M1: 146,008 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.56 AU - 2.92 AU

Year: 1624 Days

Day: 14.2 Hours

Environment

Temp: -87 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 4.94 AU - 5.02 AU

Year: 3980 Days

Day: 22.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419

Radius: 12.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.17 AU - 8.45 AU

Year: 6365 Days

Day: 9.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,352,592 km

• M1: 159,023 km (0.109 R)
• M2: 614,698 km (0.097 R)
• M3: 1,085,183 km (0.108 R)
• M4: 1,674,898 km (0.049 R)
• M5: 2,408,675 km (0.094 R)
• M6: 7,826,362 km (0.112 R)
• M7: 8,729,185 km (0.081 R)
• M8: 10,299,065 km (0.11 R)
• M9: 12,001,340 km (0.118 R)
• M10: 15,607,247 km (0.066 R)
• M11: 22,063,891 km (0.115 R)
• M12: 24,481,692 km (0.025 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.5

Radius: 13

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 10.84 AU - 13.52 AU

Year: 15225 Days

Day: 13.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,352,592 km

• M1: 161,715 km (0.08 R)
• M2: 1,330,823 km (0.069 R)
• M3: 1,807,441 km (0.094 R)
• M4: 3,166,688 km (0.056 R)
• M5: 8,014,556 km (0.064 R)
• M6: 9,944,518 km (0.112 R)
• M7: 11,734,906 km (0.105 R)
• M8: 12,229,925 km (0.115 R)
• M9: 16,553,154 km (0.091 R)
• M10: 17,734,828 km (0.106 R)
• M11: 19,311,290 km (0.109 R)
• M12: 20,354,137 km (0.045 R)
• M13: 22,081,394 km (0.025 R)
• M14: 36,082,857 km (0.047 R)
• M15: 55,223,755 km (0.052 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.7

Radius: 14.8

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 9.95 AU - 15.15 AU

Year: 15924 Days

Day: 8.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,352,592 km

• M1: 184,305 km (0.053 R)
• M2: 689,945 km (0.056 R)
• M3: 1,227,002 km (0.102 R)
• M4: 2,359,757 km (0.109 R)
• M5: 3,074,984 km (0.119 R)
• M6: 4,449,340 km (0.118 R)
• M7: 5,116,397 km (0.094 R)
• M8: 7,481,689 km (0.116 R)
• M9: 8,088,158 km (0.054 R)
• M10: 9,506,795 km (0.103 R)
• M11: 11,506,470 km (0.025 R)
• M12: 12,444,448 km (0.118 R)
• M13: 15,640,457 km (0.07 R)
• M14: 16,634,984 km (0.075 R)
• M15: 17,187,599 km (0.051 R)
• M16: 19,005,063 km (0.039 R)
• M17: 21,314,405 km (0.094 R)
• M18: 29,704,452 km (0.107 R)
• M19: 30,636,597 km (0.107 R)
• M20: 32,682,048 km (0.052 R)
• M21: 41,202,545 km (0.109 R)
• M22: 41,779,693 km (0.085 R)
• M23: 43,991,797 km (0.096 R)
• M24: 45,971,126 km (0.119 R)
• M25: 51,594,810 km (0.109 R)
• M26: 52,097,159 km (0.114 R)
• M27: 52,772,145 km (0.074 R)
• M28: 55,005,940 km (0.112 R)
• M29: 56,944,729 km (0.102 R)
• M30: 59,294,462 km (0.106 R)
• M31: 61,145,437 km (0.114 R)
• M32: 63,993,631 km (0.042 R)

Kuiper Belt

Range: 30.6 - 50.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 19,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit