🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.87 AU - 0.89 AU

Year: 306 Days

Day: 31.9 Hours

Environment

Temp: 72 °C

Axial Tilt: 24.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.78 AU - 1.24 AU

Year: 376 Days

Day: 36.3 Hours

Environment

Temp: 21 °C

Axial Tilt: 34.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 76,831,538 km

• M1: 644,617 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.6 AU - 2.14 AU

Year: 948 Days

Day: 34.7 Hours

Environment

Temp: -55 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.9

Radius: 12.9

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 6.13 AU - 7.49 AU

Year: 6591 Days

Day: 12 Hours

Environment

Temp: -163 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,831,538 km

• M1: 161,267 km (0.099 R)
• M2: 852,109 km (0.088 R)
• M3: 2,111,424 km (0.055 R)
• M4: 4,026,427 km (0.084 R)
• M5: 6,556,127 km (0.072 R)
• M6: 7,134,322 km (0.119 R)
• M7: 7,676,615 km (0.095 R)
• M8: 10,168,616 km (0.094 R)
• M9: 11,302,269 km (0.119 R)
• M10: 12,277,946 km (0.074 R)
• M11: 14,343,893 km (0.11 R)
• M12: 17,710,144 km (0.115 R)
• M13: 18,391,413 km (0.074 R)
• M14: 18,961,680 km (0.1 R)
• M15: 26,677,788 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 973.5

Radius: 8

Gravity: 15.21 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 9.97 AU - 15.67 AU

Year: 17023 Days

Day: 18.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,831,538 km

• M1: 171,738 km (0.106 R)
• M2: 1,214,136 km (0.094 R)
• M3: 1,463,815 km (0.11 R)
• M4: 1,838,707 km (0.083 R)
• M5: 2,276,580 km (0.074 R)
• M6: 2,613,774 km (0.061 R)
• M7: 3,620,119 km (0.05 R)
• M8: 3,986,185 km (0.059 R)
• M9: 11,013,545 km (0.115 R)
• M10: 11,330,244 km (0.032 R)
• M11: 12,452,527 km (0.068 R)
• M12: 12,935,578 km (0.105 R)
• M13: 13,719,770 km (0.113 R)
• M14: 16,923,409 km (0.037 R)
• M15: 17,688,153 km (0.111 R)
• M16: 20,026,368 km (0.115 R)
• M17: 21,662,071 km (0.1 R)
• M18: 24,226,478 km (0.093 R)
• M19: 26,193,690 km (0.114 R)
• M20: 29,949,494 km (0.044 R)
• M21: 43,973,845 km (0.117 R)
• M22: 54,558,643 km (0.1 R)
• M23: 67,987,146 km (0.118 R)
• M24: 70,130,734 km (0.108 R)
• M25: 73,653,764 km (0.115 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 13,811 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit