🌌 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: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.54 AU - 0.72 AU

Year: 328 Days

Day: 14.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.3

Radius: 14.7

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.73 AU - 0.91 AU

Year: 487 Days

Day: 9.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,001,986 km

• M1: 182,809 km (0.085 R)
• M2: 647,310 km (0.069 R)
• M3: 1,120,787 km (0.073 R)
• M4: 1,640,191 km (0.105 R)
• M5: 2,291,989 km (0.118 R)
• M6: 2,810,944 km (0.084 R)
• M7: 3,744,435 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.1

Radius: 12.7

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.99 AU - 1.49 AU

Year: 906 Days

Day: 5.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 18,001,986 km

• M1: 157,975 km (0.032 R)
• M2: 632,201 km (0.089 R)
• M3: 1,088,773 km (0.051 R)
• M4: 1,781,112 km (0.058 R)
• M5: 2,207,317 km (0.096 R)
• M6: 2,789,851 km (0.087 R)
• M7: 3,356,976 km (0.074 R)
• M8: 3,792,605 km (0.086 R)
• M9: 4,249,178 km (0.064 R)
• M10: 4,890,205 km (0.117 R)
• M11: 5,760,715 km (0.108 R)
• M12: 6,731,755 km (0.097 R)
• M13: 7,135,070 km (0.081 R)
• M14: 9,197,875 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.9

Radius: 8

Gravity: 13.73 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.38 AU - 1.66 AU

Year: 1229 Days

Day: 10.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,001,986 km

• M1: 99,632 km (0.064 R)
• M2: 510,428 km (0.117 R)
• M3: 811,718 km (0.111 R)
• M4: 1,233,135 km (0.06 R)
• M5: 1,725,611 km (0.093 R)
• M6: 3,480,694 km (0.054 R)
• M7: 4,482,401 km (0.074 R)
• M8: 5,298,457 km (0.09 R)
• M9: 5,642,532 km (0.054 R)
• M10: 6,093,570 km (0.109 R)
• M11: 7,809,158 km (0.116 R)
• M12: 8,513,914 km (0.089 R)
• M13: 10,245,509 km (0.1 R)
• M14: 11,369,438 km (0.111 R)
• M15: 11,906,495 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.5

Radius: 13.9

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.96 AU - 2.76 AU

Year: 2378 Days

Day: 5.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 18,001,986 km

• M1: 172,935 km (0.103 R)
• M2: 762,650 km (0.102 R)
• M3: 1,198,279 km (0.059 R)
• M4: 1,691,653 km (0.05 R)
• M5: 2,524,015 km (0.093 R)
• M6: 4,525,635 km (0.056 R)
• M7: 5,321,944 km (0.077 R)
• M8: 7,397,615 km (0.115 R)
• M9: 8,030,414 km (0.057 R)
• M10: 8,536,503 km (0.097 R)
• M11: 10,367,282 km (0.069 R)
• M12: 11,434,214 km (0.112 R)
• M13: 13,475,926 km (0.098 R)
• M14: 14,283,754 km (0.093 R)
• M15: 14,746,461 km (0.111 R)
• M16: 16,045,718 km (0.09 R)
• M17: 16,545,824 km (0.119 R)
• M18: 17,841,940 km (0.049 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 12,813 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit