🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.72 AU - 0.92 AU

Year: 281 Days

Day: 12.8 Hours

Environment

Temp: 128 °C

Axial Tilt: 17.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,478,384 km

• M1: 198,068 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.99 AU - 1.03 AU

Year: 384 Days

Day: 36.3 Hours

Environment

Temp: 14 °C

Axial Tilt: 1.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.85 AU - 3.05 AU

Year: 1919 Days

Day: 22.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.13 AU - 4.09 AU

Year: 2598 Days

Day: 17.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 147.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,478,384 km

• M1: 34,108 km (0.042 R)

Asteroid Belt

Center: 4.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.7

Radius: 11.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.2 AU - 6.32 AU

Year: 4569 Days

Day: 10 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 86,478,384 km

• M1: 147,055 km (0.12 R)
• M2: 951,293 km (0.087 R)
• M3: 1,975,141 km (0.086 R)
• M4: 2,857,319 km (0.113 R)
• M5: 3,624,906 km (0.103 R)
• M6: 4,661,619 km (0.093 R)
• M7: 6,974,851 km (0.117 R)
• M8: 9,623,631 km (0.062 R)
• M9: 11,853,686 km (0.071 R)
• M10: 13,346,075 km (0.039 R)
• M11: 15,526,165 km (0.083 R)
• M12: 17,310,119 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.4

Radius: 4.2

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 12.04 AU - 16.26 AU

Year: 20160 Days

Day: 16.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,478,384 km

• M1: 53,107 km (0.118 R)
• M2: 326,273 km (0.039 R)
• M3: 596,896 km (0.062 R)
• M4: 755,320 km (0.068 R)
• M5: 1,108,670 km (0.105 R)
• M6: 1,284,447 km (0.084 R)
• M7: 1,855,313 km (0.05 R)
• M8: 2,442,036 km (0.089 R)
• M9: 2,928,229 km (0.047 R)
• M10: 3,083,960 km (0.096 R)
• M11: 3,412,327 km (0.027 R)
• M12: 10,531,690 km (0.086 R)
• M13: 11,084,753 km (0.085 R)
• M14: 15,568,650 km (0.114 R)
• M15: 19,785,814 km (0.063 R)
• M16: 20,133,181 km (0.084 R)
• M17: 22,755,631 km (0.107 R)
• M18: 29,200,457 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.8

Radius: 7.6

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 13.37 AU - 17.97 AU

Year: 23494 Days

Day: 23.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,478,384 km

• M1: 94,546 km (0.051 R)
• M2: 989,440 km (0.038 R)
• M3: 2,450,264 km (0.05 R)
• M4: 2,820,369 km (0.044 R)
• M5: 3,926,645 km (0.102 R)
• M6: 4,505,738 km (0.066 R)
• M7: 6,004,709 km (0.079 R)
• M8: 7,403,000 km (0.116 R)
• M9: 8,124,660 km (0.101 R)
• M10: 10,133,610 km (0.049 R)
• M11: 10,571,782 km (0.08 R)
• M12: 11,219,691 km (0.074 R)
• M13: 11,620,912 km (0.095 R)
• M14: 14,623,940 km (0.112 R)
• M15: 16,176,616 km (0.073 R)
• M16: 17,926,313 km (0.096 R)
• M17: 19,223,775 km (0.095 R)
• M18: 21,900,979 km (0.097 R)
• M19: 25,728,141 km (0.092 R)
• M20: 28,226,276 km (0.117 R)
• M21: 41,562,926 km (0.082 R)
• M22: 44,157,402 km (0.116 R)
• M23: 45,832,599 km (0.069 R)
• M24: 46,343,326 km (0.078 R)
• M25: 47,723,815 km (0.093 R)
• M26: 50,747,936 km (0.052 R)
• M27: 54,276,351 km (0.112 R)
• M28: 57,174,960 km (0.118 R)
• M29: 60,992,398 km (0.086 R)
• M30: 70,027,212 km (0.115 R)
• M31: 78,691,173 km (0.11 R)
• M32: 79,178,862 km (0.119 R)
• M33: 85,445,965 km (0.078 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 504 - 11,769 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit