🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.55 AU - 0.63 AU

Year: 293 Days

Day: 36.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.4

Radius: 11.7

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.01 AU - 1.03 AU

Year: 665 Days

Day: 10.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,640,977 km

• M1: 145,858 km (0.112 R)
• M2: 519,105 km (0.091 R)
• M3: 954,584 km (0.088 R)
• M4: 1,526,796 km (0.117 R)
• M5: 2,094,969 km (0.094 R)
• M6: 2,633,371 km (0.086 R)
• M7: 3,133,926 km (0.077 R)
• M8: 3,723,491 km (0.072 R)
• M9: 4,100,777 km (0.081 R)
• M10: 4,761,102 km (0.065 R)
• M11: 5,223,509 km (0.076 R)
• M12: 5,733,189 km (0.085 R)
• M13: 6,201,580 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.3

Radius: 14.3

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.25 AU - 4.29 AU

Year: 4726 Days

Day: 5.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,640,977 km

• M1: 177,872 km (0.061 R)
• M2: 1,389,016 km (0.086 R)
• M3: 1,878,500 km (0.057 R)
• M4: 2,762,474 km (0.117 R)
• M5: 3,705,988 km (0.05 R)
• M6: 4,414,334 km (0.12 R)
• M7: 5,325,086 km (0.082 R)
• M8: 7,094,679 km (0.084 R)
• M9: 8,345,018 km (0.052 R)
• M10: 12,311,306 km (0.042 R)
• M11: 13,032,817 km (0.066 R)
• M12: 15,486,072 km (0.116 R)
• M13: 16,946,896 km (0.053 R)
• M14: 17,646,415 km (0.07 R)
• M15: 18,900,045 km (0.065 R)
• M16: 20,071,247 km (0.084 R)
• M17: 20,782,435 km (0.099 R)
• M18: 23,172,112 km (0.056 R)
• M19: 24,999,151 km (0.111 R)
• M20: 30,122,878 km (0.046 R)
• M21: 32,103,853 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.6

Radius: 11.9

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.69 AU - 5.81 AU

Year: 7767 Days

Day: 10.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 34,640,977 km

• M1: 147,952 km (0.059 R)
• M2: 613,052 km (0.036 R)
• M3: 1,626,877 km (0.059 R)
• M4: 2,040,665 km (0.091 R)
• M5: 2,948,275 km (0.089 R)
• M6: 4,156,577 km (0.086 R)
• M7: 4,804,784 km (0.076 R)
• M8: 7,938,860 km (0.098 R)
• M9: 9,063,537 km (0.118 R)
• M10: 10,993,648 km (0.089 R)
• M11: 12,183,101 km (0.104 R)
• M12: 13,676,985 km (0.098 R)
• M13: 16,328,608 km (0.113 R)
• M14: 18,276,073 km (0.076 R)
• M15: 19,166,330 km (0.081 R)
• M16: 20,085,309 km (0.063 R)
• M17: 21,934,788 km (0.11 R)
• M18: 23,653,967 km (0.054 R)
• M19: 24,138,065 km (0.075 R)
• M20: 25,209,635 km (0.066 R)
• M21: 26,398,788 km (0.1 R)
• M22: 28,162,098 km (0.074 R)
• M23: 29,256,856 km (0.066 R)
• M24: 29,814,856 km (0.064 R)
• M25: 30,569,876 km (0.049 R)
• M26: 34,126,117 km (0.097 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 11,138 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit