🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.24 AU - 1.36 AU

Year: 558 Days

Day: 20.4 Hours

Environment

Temp: -25 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,352,681 km

• M1: 35,006 km (0.094 R)
• M2: 73,602 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.81 AU - 2.25 AU

Year: 1090 Days

Day: 21.5 Hours

Environment

Temp: -87 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,352,681 km

• M1: 38,746 km (0.074 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.08 AU - 2.34 AU

Year: 1238 Days

Day: 36.4 Hours

Environment

Temp: -92 °C

Axial Tilt: 5.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,352,681 km

• M1: 218,114 km (0.046 R)
• M2: 1,288,486 km (0.103 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.41 AU - 3.95 AU

Year: 2136 Days

Day: 15.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 18 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,352,681 km

• M1: 40,840 km (0.073 R)
• M2: 103,073 km (0.104 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 3.12 AU - 4.28 AU

Year: 2681 Days

Day: 34.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,352,681 km

• M1: 44,131 km (0.097 R)

Asteroid Belt

Center: 4.22 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.9

Radius: 8.8

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.65 AU - 5.81 AU

Year: 3875 Days

Day: 7.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 42,352,681 km

• M1: 111,002 km (0.103 R)
• M2: 433,684 km (0.067 R)
• M3: 1,044,792 km (0.081 R)
• M4: 1,427,762 km (0.081 R)
• M5: 1,798,017 km (0.119 R)
• M6: 2,568,446 km (0.085 R)
• M7: 3,103,857 km (0.109 R)
• M8: 3,525,124 km (0.096 R)
• M9: 3,944,597 km (0.119 R)
• M10: 4,929,549 km (0.114 R)
• M11: 6,477,588 km (0.1 R)
• M12: 6,903,343 km (0.082 R)
• M13: 7,438,605 km (0.113 R)
• M14: 10,310,285 km (0.088 R)
• M15: 12,118,475 km (0.049 R)
• M16: 12,634,288 km (0.088 R)
• M17: 13,164,613 km (0.096 R)
• M18: 13,526,490 km (0.095 R)
• M19: 15,187,924 km (0.047 R)
• M20: 15,636,269 km (0.111 R)
• M21: 15,939,952 km (0.088 R)
• M22: 16,403,107 km (0.107 R)
• M23: 16,875,089 km (0.099 R)
• M24: 17,248,485 km (0.115 R)
• M25: 18,011,584 km (0.059 R)
• M26: 19,605,399 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.1

Radius: 9.4

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.94 AU - 10.8 AU

Year: 9952 Days

Day: 8 Hours

Environment

Temp: -172 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 42,352,681 km

• M1: 118,482 km (0.093 R)
• M2: 700,716 km (0.078 R)
• M3: 1,064,090 km (0.108 R)
• M4: 1,621,043 km (0.117 R)
• M5: 2,204,624 km (0.058 R)
• M6: 2,779,678 km (0.088 R)
• M7: 3,405,147 km (0.109 R)
• M8: 3,739,348 km (0.087 R)
• M9: 4,281,790 km (0.119 R)
• M10: 4,787,880 km (0.032 R)
• M11: 7,856,581 km (0.067 R)
• M12: 8,879,681 km (0.059 R)
• M13: 9,285,540 km (0.096 R)
• M14: 9,656,543 km (0.09 R)
• M15: 10,134,209 km (0.084 R)
• M16: 10,577,617 km (0.109 R)
• M17: 13,455,880 km (0.051 R)
• M18: 15,297,579 km (0.061 R)
• M19: 16,547,320 km (0.084 R)
• M20: 18,149,812 km (0.101 R)
• M21: 18,511,390 km (0.066 R)
• M22: 20,861,872 km (0.109 R)
• M23: 22,231,889 km (0.053 R)
• M24: 22,896,852 km (0.062 R)
• M25: 23,319,316 km (0.109 R)
• M26: 25,509,579 km (0.094 R)
• M27: 33,653,088 km (0.059 R)
• M28: 38,903,225 km (0.064 R)
• M29: 39,868,880 km (0.106 R)
• M30: 41,471,971 km (0.027 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 15,756 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit