🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.46 AU - 0.72 AU

Year: 192 Days

Day: 34.3 Hours

Environment

Temp: 19 °C

Axial Tilt: 19.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.54 AU - 0.64 AU

Year: 192 Days

Day: 15.5 Hours

Environment

Temp: 16 °C

Axial Tilt: 3.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1 AU - 1.64 AU

Year: 644 Days

Day: 47.8 Hours

Environment

Temp: -85 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.24 AU - 1.44 AU

Year: 659 Days

Day: 13.8 Hours

Environment

Temp: -84 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.8 AU - 1.82 AU

Year: 1034 Days

Day: 28.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,484,183 km

• M1: 337,642 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.6

Radius: 13.8

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.99 AU - 6.51 AU

Year: 6634 Days

Day: 12.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,484,183 km

• M1: 181,612 km (0.075 R)
• M2: 634,744 km (0.067 R)
• M3: 1,697,637 km (0.1 R)
• M4: 4,528,776 km (0.114 R)
• M5: 7,169,029 km (0.07 R)
• M6: 7,722,092 km (0.114 R)
• M7: 13,331,564 km (0.072 R)
• M8: 14,822,007 km (0.07 R)
• M9: 16,069,055 km (0.116 R)
• M10: 20,094,734 km (0.107 R)
• M11: 25,934,736 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41

Radius: 14.1

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.1 AU - 8.98 AU

Year: 9680 Days

Day: 11 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,484,183 km

• M1: 178,021 km (0.111 R)
• M2: 1,620,145 km (0.102 R)
• M3: 4,381,722 km (0.095 R)
• M4: 6,041,809 km (0.088 R)
• M5: 6,597,116 km (0.075 R)
• M6: 7,071,641 km (0.083 R)
• M7: 9,761,261 km (0.113 R)
• M8: 15,029,051 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446.9

Radius: 5.2

Gravity: 16.53 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 12.61 AU - 13.67 AU

Year: 20224 Days

Day: 20.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,484,183 km

• M1: 71,957 km (0.072 R)
• M2: 485,146 km (0.1 R)
• M3: 1,701,377 km (0.114 R)
• M4: 1,894,059 km (0.112 R)
• M5: 2,160,492 km (0.107 R)
• M6: 2,792,095 km (0.047 R)
• M7: 6,076,815 km (0.114 R)
• M8: 9,566,335 km (0.113 R)
• M9: 10,995,144 km (0.117 R)
• M10: 12,108,003 km (0.105 R)
• M11: 13,914,996 km (0.094 R)
• M12: 17,071,211 km (0.072 R)
• M13: 21,789,379 km (0.113 R)
• M14: 27,198,239 km (0.041 R)
• M15: 29,800,494 km (0.101 R)
• M16: 34,327,176 km (0.107 R)
• M17: 45,947,789 km (0.049 R)
• M18: 56,116,704 km (0.111 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 19,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit