🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.57 AU - 0.83 AU

Year: 216 Days

Day: 33.3 Hours

Environment

Temp: 109 °C

Axial Tilt: 5.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.81 AU - 1.25 AU

Year: 386 Days

Day: 43.5 Hours

Environment

Temp: 21 °C

Axial Tilt: 11.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 46,512,991 km

• M1: 37,100 km (0.103 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.73

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.14 AU - 1.36 AU

Year: 516 Days

Day: 47.9 Hours

Environment

Temp: -11 °C

Axial Tilt: 2.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.17 AU - 2.61 AU

Year: 1363 Days

Day: 30.9 Hours

Environment

Temp: -79 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 46,512,991 km

• M1: 107,710 km (0.086 R)
• M2: 242,049 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.8

Radius: 12.1

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 3.77 AU - 6.13 AU

Year: 4063 Days

Day: 7.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,512,991 km

• M1: 154,535 km (0.118 R)
• M2: 1,309,729 km (0.09 R)
• M3: 2,181,885 km (0.092 R)
• M4: 2,705,477 km (0.053 R)
• M5: 3,255,100 km (0.117 R)
• M6: 4,532,217 km (0.062 R)
• M7: 7,266,118 km (0.098 R)
• M8: 7,873,785 km (0.113 R)
• M9: 8,405,904 km (0.081 R)
• M10: 13,717,377 km (0.09 R)
• M11: 15,127,037 km (0.108 R)
• M12: 20,991,872 km (0.116 R)
• M13: 22,295,468 km (0.118 R)
• M14: 23,652,321 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 248.9

Radius: 5.5

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 11.67 AU - 12.87 AU

Year: 15858 Days

Day: 21.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 46,512,991 km

• M1: 68,366 km (0.068 R)
• M2: 304,731 km (0.115 R)
• M3: 626,217 km (0.078 R)
• M4: 811,718 km (0.11 R)
• M5: 1,034,320 km (0.027 R)
• M6: 1,604,587 km (0.05 R)
• M7: 2,235,291 km (0.099 R)
• M8: 2,596,869 km (0.059 R)
• M9: 3,558,784 km (0.106 R)
• M10: 4,188,740 km (0.089 R)
• M11: 5,301,749 km (0.089 R)
• M12: 6,085,492 km (0.112 R)
• M13: 7,341,216 km (0.102 R)
• M14: 9,753,332 km (0.075 R)
• M15: 10,766,708 km (0.106 R)
• M16: 12,243,539 km (0.081 R)
• M17: 13,726,801 km (0.072 R)
• M18: 24,750,968 km (0.103 R)
• M19: 25,489,532 km (0.08 R)
• M20: 34,493,978 km (0.109 R)
• M21: 34,952,495 km (0.103 R)
• M22: 43,248,595 km (0.112 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 16,494 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit