🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.75 AU - 1.19 AU

Year: 364 Days

Day: 31 Hours

Environment

Temp: 13 °C

Axial Tilt: 15.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.32 AU - 1.62 AU

Year: 679 Days

Day: 21.5 Hours

Environment

Temp: -48 °C

Axial Tilt: 42.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.5 AU - 1.56 AU

Year: 721 Days

Day: 40.3 Hours

Environment

Temp: -57 °C

Axial Tilt: 7.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.9

Radius: 8.6

Gravity: 9.81 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 7.01 AU - 9.05 AU

Year: 8665 Days

Day: 8.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 110,548,031 km

• M1: 123,418 km (0.108 R)
• M2: 604,974 km (0.116 R)
• M3: 931,546 km (0.05 R)
• M4: 1,414,298 km (0.104 R)
• M5: 5,448,654 km (0.1 R)
• M6: 6,741,030 km (0.082 R)
• M7: 15,632,977 km (0.053 R)
• M8: 16,507,826 km (0.079 R)
• M9: 17,132,397 km (0.09 R)
• M10: 21,133,990 km (0.08 R)
• M11: 25,351,005 km (0.073 R)
• M12: 28,192,018 km (0.092 R)
• M13: 38,578,598 km (0.039 R)
• M14: 39,064,492 km (0.05 R)
• M15: 42,710,491 km (0.105 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.2

Radius: 3.3

Gravity: 79.45 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 17.61 AU - 20.09 AU

Year: 31165 Days

Day: 21.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 110,548,031 km

• M1: 41,139 km (0.106 R)
• M2: 168,896 km (0.09 R)
• M3: 337,792 km (0.109 R)
• M4: 729,439 km (0.106 R)
• M5: 1,094,009 km (0.114 R)
• M6: 1,368,073 km (0.102 R)
• M7: 2,168,122 km (0.052 R)
• M8: 3,462,293 km (0.077 R)
• M9: 4,195,622 km (0.111 R)
• M10: 4,500,353 km (0.078 R)
• M11: 4,901,873 km (0.085 R)
• M12: 8,228,332 km (0.047 R)
• M13: 9,910,859 km (0.068 R)
• M14: 10,519,124 km (0.054 R)
• M15: 16,868,357 km (0.106 R)
• M16: 29,556,351 km (0.096 R)
• M17: 30,952,697 km (0.089 R)
• M18: 33,128,897 km (0.056 R)
• M19: 34,787,938 km (0.102 R)
• M20: 38,763,052 km (0.107 R)
• M21: 41,287,516 km (0.114 R)
• M22: 43,919,541 km (0.11 R)
• M23: 60,526,251 km (0.074 R)
• M24: 70,329,699 km (0.088 R)
• M25: 78,735,454 km (0.078 R)
• M26: 79,265,479 km (0.12 R)
• M27: 80,064,780 km (0.079 R)
• M28: 87,218,850 km (0.049 R)
• M29: 102,465,416 km (0.101 R)
• M30: 109,556,505 km (0.064 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 17,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit