🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.05 AU - 1.25 AU

Year: 450 Days

Day: 15.1 Hours

Environment

Temp: 18 °C

Axial Tilt: 19.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.1 AU - 1.8 AU

Year: 638 Days

Day: 25.8 Hours

Environment

Temp: -32 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,732,877 km

• M1: 303,684 km (0.12 R)
• M2: 355,893 km (0.079 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.79 AU - 2.15 AU

Year: 1010 Days

Day: 36 Hours

Environment

Temp: -63 °C

Axial Tilt: 145.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.55 AU - 4.25 AU

Year: 2290 Days

Day: 31.8 Hours

Environment

Temp: -103 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.9

Radius: 12.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.81 AU - 6.27 AU

Year: 4763 Days

Day: 6.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,732,877 km

• M1: 166,802 km (0.114 R)
• M2: 578,944 km (0.114 R)
• M3: 1,060,649 km (0.088 R)
• M4: 1,606,382 km (0.118 R)
• M5: 2,517,882 km (0.094 R)
• M6: 4,141,168 km (0.052 R)
• M7: 6,000,520 km (0.115 R)
• M8: 7,597,926 km (0.096 R)
• M9: 8,764,640 km (0.116 R)
• M10: 9,214,032 km (0.043 R)
• M11: 9,825,139 km (0.097 R)
• M12: 12,200,604 km (0.065 R)
• M13: 13,797,112 km (0.076 R)
• M14: 14,742,122 km (0.108 R)
• M15: 15,932,472 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 192

Radius: 8

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 13.4 AU - 17.72 AU

Year: 22418 Days

Day: 15.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,732,877 km

• M1: 99,632 km (0.087 R)
• M2: 509,530 km (0.043 R)
• M3: 1,064,090 km (0.103 R)
• M4: 2,816,180 km (0.092 R)
• M5: 4,073,101 km (0.118 R)
• M6: 4,363,770 km (0.081 R)
• M7: 7,214,058 km (0.027 R)
• M8: 9,518,314 km (0.119 R)
• M9: 12,035,298 km (0.049 R)
• M10: 13,702,866 km (0.066 R)
• M11: 16,963,501 km (0.093 R)
• M12: 23,089,983 km (0.099 R)
• M13: 24,968,483 km (0.069 R)
• M14: 29,240,549 km (0.117 R)
• M15: 48,146,429 km (0.04 R)
• M16: 48,446,223 km (0.048 R)
• M17: 48,747,065 km (0.074 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 13,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit