🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.63 AU - 0.65 AU

Year: 195 Days

Day: 46.3 Hours

Environment

Temp: 107 °C

Axial Tilt: 2.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.77 AU - 1.11 AU

Year: 347 Days

Day: 42 Hours

Environment

Temp: 34 °C

Axial Tilt: 31.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1 AU - 1.18 AU

Year: 433 Days

Day: 30.3 Hours

Environment

Temp: -6 °C

Axial Tilt: 8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.39 AU - 2.19 AU

Year: 912 Days

Day: 12.8 Hours

Environment

Temp: -71 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.13 AU - 2.39 AU

Year: 1294 Days

Day: 31.4 Hours

Environment

Temp: -86 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.65 AU - 2.93 AU

Year: 1775 Days

Day: 22.8 Hours

Environment

Temp: -109 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.57 AU - 3.51 AU

Year: 2018 Days

Day: 46.2 Hours

Environment

Temp: -117 °C

Axial Tilt: 24.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 78,642,210 km

• M1: 74,949 km (0.107 R)
• M2: 344,673 km (0.076 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.45 AU - 4.63 AU

Year: 3092 Days

Day: 32.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 82 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.1

Radius: 8.3

Gravity: 13.05 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.04 AU - 8.44 AU

Year: 9007 Days

Day: 14.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,642,210 km

• M1: 103,223 km (0.111 R)
• M2: 595,400 km (0.112 R)
• M3: 1,043,445 km (0.108 R)
• M4: 1,306,887 km (0.05 R)
• M5: 1,718,730 km (0.115 R)
• M6: 2,023,012 km (0.108 R)
• M7: 3,323,915 km (0.093 R)
• M8: 3,721,995 km (0.119 R)
• M9: 4,673,886 km (0.084 R)
• M10: 6,774,839 km (0.107 R)
• M11: 7,090,640 km (0.091 R)
• M12: 7,666,891 km (0.11 R)
• M13: 8,453,327 km (0.058 R)
• M14: 8,773,317 km (0.063 R)
• M15: 9,831,871 km (0.11 R)
• M16: 10,548,445 km (0.118 R)
• M17: 11,800,579 km (0.115 R)
• M18: 13,703,614 km (0.066 R)
• M19: 14,018,517 km (0.116 R)
• M20: 14,338,058 km (0.087 R)
• M21: 19,735,998 km (0.095 R)
• M22: 23,821,367 km (0.085 R)
• M23: 27,133,015 km (0.097 R)
• M24: 28,031,799 km (0.072 R)
• M25: 35,120,494 km (0.088 R)
• M26: 44,682,042 km (0.08 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 739.5

Radius: 5.7

Gravity: 22.76 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 12.08 AU - 16.18 AU

Year: 20226 Days

Day: 18.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,642,210 km

• M1: 70,909 km (0.084 R)
• M2: 1,832,873 km (0.103 R)
• M3: 4,148,349 km (0.05 R)
• M4: 4,348,361 km (0.032 R)
• M5: 4,624,968 km (0.12 R)
• M6: 5,329,125 km (0.028 R)
• M7: 5,768,195 km (0.088 R)
• M8: 9,716,531 km (0.101 R)
• M9: 9,951,400 km (0.045 R)
• M10: 11,570,797 km (0.091 R)
• M11: 14,242,166 km (0.033 R)
• M12: 14,621,696 km (0.095 R)
• M13: 16,372,440 km (0.118 R)
• M14: 19,811,096 km (0.071 R)
• M15: 21,648,607 km (0.094 R)
• M16: 22,455,089 km (0.068 R)
• M17: 22,865,735 km (0.086 R)
• M18: 24,235,304 km (0.09 R)
• M19: 26,675,844 km (0.081 R)
• M20: 32,821,922 km (0.094 R)
• M21: 36,644,597 km (0.095 R)
• M22: 39,998,431 km (0.058 R)
• M23: 41,211,371 km (0.112 R)
• M24: 47,141,131 km (0.061 R)
• M25: 48,493,945 km (0.086 R)
• M26: 59,867,422 km (0.064 R)
• M27: 65,539,426 km (0.073 R)
• M28: 66,377,922 km (0.069 R)
• M29: 76,539,806 km (0.119 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 17,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit