🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.77 AU - 1.09 AU

Year: 326 Days

Day: 17.1 Hours

Environment

Temp: 144 °C

Axial Tilt: 34.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 30,730,209 km

• M1: 93,499 km (0.052 R)
• M2: 115,789 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.29 AU - 1.37 AU

Year: 557 Days

Day: 17 Hours

Environment

Temp: -18 °C

Axial Tilt: 11.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.11 AU - 3.13 AU

Year: 1541 Days

Day: 24.8 Hours

Environment

Temp: -93 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.09 AU - 3.31 AU

Year: 1612 Days

Day: 36.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.37 AU - 3.35 AU

Year: 1758 Days

Day: 38.6 Hours

Environment

Temp: -97 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.76 AU - 4.66 AU

Year: 3139 Days

Day: 41.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,730,209 km

• M1: 1,561,503 km (0.104 R)

Asteroid Belt

Center: 5.29 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.7

Radius: 10

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.54 AU - 7.2 AU

Year: 5843 Days

Day: 14.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 30,730,209 km

• M1: 124,465 km (0.063 R)
• M2: 511,475 km (0.082 R)
• M3: 840,291 km (0.074 R)
• M4: 1,338,003 km (0.111 R)
• M5: 1,925,923 km (0.093 R)
• M6: 2,327,743 km (0.06 R)
• M7: 2,876,318 km (0.113 R)
• M8: 3,363,259 km (0.11 R)
• M9: 4,427,798 km (0.119 R)
• M10: 5,188,653 km (0.102 R)
• M11: 5,586,134 km (0.079 R)
• M12: 6,636,610 km (0.058 R)
• M13: 7,278,385 km (0.116 R)
• M14: 8,035,201 km (0.078 R)
• M15: 8,375,237 km (0.107 R)
• M16: 9,124,872 km (0.074 R)
• M17: 9,620,938 km (0.096 R)
• M18: 12,128,647 km (0.109 R)
• M19: 12,526,578 km (0.087 R)
• M20: 13,036,258 km (0.1 R)
• M21: 17,814,862 km (0.118 R)
• M22: 20,209,027 km (0.089 R)
• M23: 21,267,132 km (0.107 R)
• M24: 23,493,448 km (0.102 R)
• M25: 26,531,182 km (0.087 R)
• M26: 28,754,356 km (0.025 R)
• M27: 29,107,108 km (0.03 R)

Kuiper Belt

Range: 30.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 19,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit