🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.42 AU - 0.64 AU

Year: 140 Days

Day: 29.9 Hours

Environment

Temp: 226 °C

Axial Tilt: 12.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.72 AU - 0.84 AU

Year: 250 Days

Day: 41.4 Hours

Environment

Temp: 136 °C

Axial Tilt: 20.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 38,759,021 km

• M1: 26,180 km (0.06 R)
• M2: 63,579 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.13 AU - 1.21 AU

Year: 460 Days

Day: 38.6 Hours

Environment

Temp: -3 °C

Axial Tilt: 2.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.22 AU - 1.62 AU

Year: 615 Days

Day: 47.1 Hours

Environment

Temp: -21 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,759,021 km

• M1: 43,533 km (0.1 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.21 AU - 3.47 AU

Year: 1739 Days

Day: 37.7 Hours

Environment

Temp: -99 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,759,021 km

• M1: 125,662 km (0.113 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.29 AU - 4.89 AU

Year: 3006 Days

Day: 25.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.8

Radius: 8.8

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.83 AU - 7.91 AU

Year: 5843 Days

Day: 10.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,759,021 km

• M1: 109,506 km (0.106 R)
• M2: 1,153,699 km (0.093 R)
• M3: 1,530,237 km (0.111 R)
• M4: 1,988,006 km (0.07 R)
• M5: 2,389,377 km (0.093 R)
• M6: 3,140,059 km (0.05 R)
• M7: 4,062,779 km (0.093 R)
• M8: 5,182,818 km (0.119 R)
• M9: 5,858,402 km (0.08 R)
• M10: 6,881,801 km (0.117 R)
• M11: 8,767,931 km (0.056 R)
• M12: 9,480,316 km (0.084 R)
• M13: 10,841,358 km (0.116 R)
• M14: 11,802,524 km (0.038 R)
• M15: 18,348,478 km (0.048 R)
• M16: 20,315,092 km (0.089 R)
• M17: 21,772,773 km (0.051 R)
• M18: 22,345,883 km (0.114 R)
• M19: 27,465,271 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 115.5

Radius: 6.3

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 10.14 AU - 16.54 AU

Year: 17708 Days

Day: 22.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,759,021 km

• M1: 129,851 km (0.089 R)
• M2: 374,144 km (0.109 R)
• M3: 3,240,290 km (0.11 R)
• M4: 3,486,977 km (0.053 R)
• M5: 5,331,070 km (0.099 R)
• M6: 10,076,314 km (0.04 R)
• M7: 10,652,116 km (0.093 R)
• M8: 16,791,613 km (0.078 R)
• M9: 19,957,254 km (0.073 R)
• M10: 21,095,095 km (0.072 R)
• M11: 22,035,916 km (0.095 R)
• M12: 23,749,410 km (0.084 R)
• M13: 27,716,297 km (0.102 R)
• M14: 32,617,721 km (0.107 R)
• M15: 34,514,922 km (0.035 R)

Kuiper Belt

Range: 30.2 - 47.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 332 - 17,374 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit