🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.72 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.9

Radius: 13.5

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.27 AU - 1.61 AU

Year: 1172 Days

Day: 13.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 48,933,736 km

• M1: 167,849 km (0.032 R)
• M2: 693,536 km (0.05 R)
• M3: 1,215,333 km (0.071 R)
• M4: 1,646,025 km (0.079 R)
• M5: 3,228,472 km (0.028 R)
• M6: 4,373,045 km (0.025 R)
• M7: 6,013,086 km (0.111 R)
• M8: 6,736,542 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.5

Radius: 8.9

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.68 AU - 3.4 AU

Year: 3595 Days

Day: 13.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 48,933,736 km

• M1: 112,647 km (0.104 R)
• M2: 425,606 km (0.111 R)
• M3: 885,171 km (0.106 R)
• M4: 1,338,003 km (0.082 R)
• M5: 1,631,514 km (0.089 R)
• M6: 1,968,409 km (0.039 R)
• M7: 2,760,230 km (0.103 R)
• M8: 3,071,394 km (0.083 R)
• M9: 3,504,031 km (0.069 R)
• M10: 4,375,439 km (0.088 R)
• M11: 4,996,120 km (0.1 R)
• M12: 6,849,339 km (0.118 R)
• M13: 7,329,398 km (0.079 R)
• M14: 8,103,866 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.1

Radius: 12.5

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.13 AU - 3.33 AU

Year: 3937 Days

Day: 7.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,933,736 km

• M1: 155,731 km (0.066 R)
• M2: 588,967 km (0.03 R)
• M3: 1,443,320 km (0.109 R)
• M4: 2,213,300 km (0.115 R)
• M5: 2,648,929 km (0.073 R)
• M6: 3,570,004 km (0.084 R)
• M7: 4,017,301 km (0.1 R)
• M8: 4,802,540 km (0.1 R)
• M9: 7,186,981 km (0.092 R)
• M10: 8,968,692 km (0.045 R)
• M11: 10,683,981 km (0.114 R)
• M12: 11,183,937 km (0.063 R)
• M13: 11,659,359 km (0.038 R)
• M14: 12,993,473 km (0.073 R)
• M15: 13,430,598 km (0.115 R)
• M16: 14,943,331 km (0.083 R)
• M17: 15,375,071 km (0.101 R)
• M18: 16,720,105 km (0.08 R)
• M19: 18,250,641 km (0.096 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.6

Radius: 5.7

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 8.24 AU - 9.78 AU

Year: 18343 Days

Day: 20.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 48,933,736 km

• M1: 75,996 km (0.089 R)
• M2: 375,341 km (0.094 R)
• M3: 816,206 km (0.1 R)
• M4: 1,022,053 km (0.109 R)
• M5: 1,810,882 km (0.047 R)
• M6: 2,859,264 km (0.061 R)
• M7: 3,245,227 km (0.11 R)
• M8: 4,583,080 km (0.079 R)
• M9: 5,784,501 km (0.088 R)
• M10: 7,345,405 km (0.112 R)
• M11: 7,722,392 km (0.116 R)
• M12: 8,790,670 km (0.081 R)
• M13: 9,072,363 km (0.098 R)
• M14: 9,408,659 km (0.069 R)
• M15: 9,703,516 km (0.055 R)
• M16: 11,886,149 km (0.099 R)
• M17: 13,991,440 km (0.049 R)
• M18: 15,232,504 km (0.088 R)
• M19: 18,768,549 km (0.091 R)
• M20: 20,602,619 km (0.11 R)
• M21: 29,135,681 km (0.115 R)
• M22: 31,915,509 km (0.091 R)
• M23: 32,358,319 km (0.094 R)
• M24: 36,409,130 km (0.104 R)
• M25: 38,743,605 km (0.12 R)
• M26: 39,121,040 km (0.066 R)
• M27: 46,910,152 km (0.068 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 12,507 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit