🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.48 AU - 0.56 AU

Year: 246 Days

Day: 42 Hours

Environment

Temp: -128 °C

Axial Tilt: 46.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.7

Radius: 11.1

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.76 AU - 1.1 AU

Year: 588 Days

Day: 9.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,706,749 km

• M1: 138,079 km (0.089 R)
• M2: 508,184 km (0.085 R)
• M3: 866,770 km (0.026 R)
• M4: 1,324,988 km (0.053 R)
• M5: 1,754,783 km (0.058 R)
• M6: 2,137,604 km (0.103 R)
• M7: 3,231,314 km (0.061 R)
• M8: 3,651,385 km (0.064 R)
• M9: 4,372,895 km (0.119 R)
• M10: 4,840,090 km (0.069 R)
• M11: 5,306,087 km (0.115 R)
• M12: 6,328,439 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.5

Radius: 8.8

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.95 AU - 1.51 AU

Year: 895 Days

Day: 8.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,706,749 km

• M1: 112,198 km (0.115 R)
• M2: 490,083 km (0.079 R)
• M3: 933,042 km (0.082 R)
• M4: 1,711,699 km (0.059 R)
• M5: 2,494,993 km (0.113 R)
• M6: 3,471,718 km (0.052 R)
• M7: 3,868,152 km (0.07 R)
• M8: 4,957,524 km (0.103 R)
• M9: 6,403,537 km (0.1 R)
• M10: 7,542,725 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.7

Radius: 11.5

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.33 AU - 1.87 AU

Year: 1328 Days

Day: 9.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,706,749 km

• M1: 143,913 km (0.048 R)
• M2: 1,186,311 km (0.087 R)
• M3: 1,850,526 km (0.09 R)
• M4: 3,809,809 km (0.12 R)
• M5: 5,535,570 km (0.075 R)
• M6: 5,969,254 km (0.118 R)
• M7: 6,425,528 km (0.044 R)
• M8: 7,732,265 km (0.076 R)
• M9: 9,525,196 km (0.073 R)
• M10: 9,998,673 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.1

Radius: 12.8

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.39 AU - 5.29 AU

Year: 5931 Days

Day: 12.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,706,749 km

• M1: 159,322 km (0.099 R)
• M2: 728,691 km (0.097 R)
• M3: 1,187,957 km (0.081 R)
• M4: 2,539,723 km (0.054 R)
• M5: 3,075,732 km (0.094 R)
• M6: 3,619,969 km (0.084 R)
• M7: 5,238,917 km (0.073 R)
• M8: 5,649,863 km (0.09 R)
• M9: 6,209,957 km (0.092 R)
• M10: 6,704,677 km (0.083 R)
• M11: 7,333,288 km (0.026 R)
• M12: 8,271,117 km (0.088 R)
• M13: 8,748,932 km (0.082 R)
• M14: 9,161,224 km (0.09 R)
• M15: 10,339,606 km (0.119 R)
• M16: 11,665,941 km (0.102 R)
• M17: 16,574,098 km (0.114 R)
• M18: 18,859,953 km (0.117 R)
• M19: 19,830,694 km (0.079 R)
• M20: 21,053,806 km (0.093 R)
• M21: 23,650,077 km (0.073 R)
• M22: 25,774,516 km (0.072 R)
• M23: 27,580,911 km (0.076 R)
• M24: 29,195,371 km (0.119 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 14,701 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit