🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.19 AU - 1.41 AU

Year: 519 Days

Day: 25.3 Hours

Environment

Temp: 21 °C

Axial Tilt: 34.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 50,622,793 km

• M1: 920,326 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.11 AU - 1.57 AU

Year: 543 Days

Day: 13.5 Hours

Environment

Temp: -2 °C

Axial Tilt: 3.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 50,622,793 km

• M1: 173,982 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.32 AU - 1.74 AU

Year: 662 Days

Day: 16.6 Hours

Environment

Temp: -19 °C

Axial Tilt: 15.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.7 AU - 2.26 AU

Year: 975 Days

Day: 39 Hours

Environment

Temp: -46 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.26 AU - 3.1 AU

Year: 1535 Days

Day: 19.6 Hours

Environment

Temp: -79 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.91 AU - 5.39 AU

Year: 4089 Days

Day: 33.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,622,793 km

• M1: 345,870 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.1

Radius: 13.1

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 11.02 AU - 11.64 AU

Year: 13342 Days

Day: 13.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,622,793 km

• M1: 192,084 km (0.099 R)
• M2: 607,517 km (0.095 R)
• M3: 1,208,751 km (0.103 R)
• M4: 1,624,782 km (0.111 R)
• M5: 2,969,967 km (0.114 R)
• M6: 4,497,211 km (0.082 R)
• M7: 5,599,000 km (0.028 R)
• M8: 6,496,886 km (0.071 R)
• M9: 6,959,143 km (0.042 R)
• M10: 8,778,553 km (0.095 R)
• M11: 10,323,749 km (0.077 R)
• M12: 16,349,102 km (0.116 R)
• M13: 17,769,534 km (0.1 R)
• M14: 19,964,434 km (0.084 R)
• M15: 21,127,258 km (0.115 R)
• M16: 27,409,920 km (0.117 R)
• M17: 27,956,252 km (0.095 R)
• M18: 28,733,413 km (0.112 R)
• M19: 35,866,837 km (0.106 R)
• M20: 40,049,893 km (0.113 R)
• M21: 46,375,789 km (0.093 R)
• M22: 52,998,935 km (0.091 R)
• M23: 54,018,295 km (0.029 R)
• M24: 57,154,764 km (0.103 R)
• M25: 59,311,965 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83.2

Radius: 5.8

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 11.21 AU - 18.45 AU

Year: 19980 Days

Day: 24.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,622,793 km

• M1: 72,106 km (0.06 R)
• M2: 517,609 km (0.095 R)
• M3: 914,941 km (0.057 R)
• M4: 1,159,533 km (0.112 R)
• M5: 1,642,435 km (0.086 R)
• M6: 2,388,480 km (0.081 R)
• M7: 3,826,714 km (0.093 R)
• M8: 4,254,713 km (0.083 R)
• M9: 4,602,977 km (0.101 R)
• M10: 10,682,186 km (0.08 R)
• M11: 11,224,927 km (0.052 R)
• M12: 20,194,217 km (0.082 R)
• M13: 30,990,994 km (0.072 R)
• M14: 35,446,019 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.9

Radius: 6.4

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 15.74 AU - 19.86 AU

Year: 26273 Days

Day: 19.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 153.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,622,793 km

• M1: 116,387 km (0.112 R)
• M2: 595,998 km (0.102 R)
• M3: 2,477,191 km (0.112 R)
• M4: 3,338,725 km (0.062 R)
• M5: 3,692,075 km (0.057 R)
• M6: 4,070,109 km (0.055 R)
• M7: 5,360,690 km (0.088 R)
• M8: 7,862,714 km (0.113 R)
• M9: 8,720,209 km (0.085 R)
• M10: 9,688,257 km (0.105 R)
• M11: 10,512,990 km (0.1 R)
• M12: 12,657,625 km (0.099 R)
• M13: 15,213,206 km (0.071 R)
• M14: 15,624,002 km (0.058 R)
• M15: 16,539,541 km (0.103 R)
• M16: 20,894,783 km (0.113 R)
• M17: 24,810,508 km (0.074 R)
• M18: 28,151,926 km (0.091 R)
• M19: 38,293,165 km (0.057 R)
• M20: 44,379,106 km (0.042 R)
• M21: 44,657,358 km (0.096 R)
• M22: 45,640,665 km (0.092 R)

Kuiper Belt

Range: 31.4 - 52.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 19,360 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit