🌌 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: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.57 AU - 0.61 AU

Year: 293 Days

Day: 15 Hours

Environment

Temp: -128 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.9

Radius: 14

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.62 AU - 0.9 AU

Year: 428 Days

Day: 12 Hours

Environment

Temp: -148 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,127,588 km

• M1: 174,282 km (0.03 R)
• M2: 744,549 km (0.091 R)
• M3: 1,232,238 km (0.045 R)
• M4: 1,766,601 km (0.084 R)
• M5: 2,240,827 km (0.107 R)
• M6: 2,706,375 km (0.102 R)
• M7: 3,680,556 km (0.118 R)
• M8: 4,861,482 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.3

Radius: 9.4

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.74 AU - 1 AU

Year: 524 Days

Day: 8.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,127,588 km

• M1: 121,324 km (0.085 R)
• M2: 428,598 km (0.106 R)
• M3: 802,144 km (0.104 R)
• M4: 1,347,727 km (0.052 R)
• M5: 1,855,462 km (0.085 R)
• M6: 2,151,517 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.9

Radius: 9.2

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.1 AU - 1.44 AU

Year: 924 Days

Day: 13.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 173.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,127,588 km

• M1: 114,442 km (0.072 R)
• M2: 979,567 km (0.088 R)
• M3: 1,516,174 km (0.085 R)
• M4: 3,014,995 km (0.077 R)
• M5: 3,523,329 km (0.106 R)
• M6: 4,039,890 km (0.066 R)
• M7: 5,055,810 km (0.106 R)
• M8: 5,358,596 km (0.069 R)
• M9: 5,733,937 km (0.074 R)
• M10: 7,781,483 km (0.055 R)
• M11: 8,658,426 km (0.103 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.4

Radius: 4.8

Gravity: 21.76 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.22 AU - 8.2 AU

Year: 12500 Days

Day: 23.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,127,588 km

• M1: 59,690 km (0.1 R)
• M2: 371,601 km (0.036 R)
• M3: 637,586 km (0.044 R)
• M4: 1,100,891 km (0.104 R)
• M5: 1,293,423 km (0.096 R)
• M6: 1,624,633 km (0.06 R)
• M7: 2,657,905 km (0.075 R)
• M8: 3,192,419 km (0.066 R)
• M9: 3,638,220 km (0.057 R)
• M10: 4,266,830 km (0.114 R)
• M11: 4,901,425 km (0.09 R)
• M12: 5,224,855 km (0.072 R)
• M13: 5,527,941 km (0.045 R)
• M14: 5,807,090 km (0.03 R)
• M15: 10,713,003 km (0.097 R)
• M16: 10,928,573 km (0.047 R)
• M17: 13,061,988 km (0.1 R)
• M18: 15,664,094 km (0.093 R)
• M19: 18,825,396 km (0.092 R)
• M20: 20,021,132 km (0.098 R)
• M21: 20,929,640 km (0.111 R)
• M22: 24,372,036 km (0.115 R)
• M23: 31,573,528 km (0.043 R)
• M24: 40,723,084 km (0.082 R)
• M25: 44,218,288 km (0.065 R)
• M26: 50,127,554 km (0.072 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: 276 - 19,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit