🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.51 AU - 0.79 AU

Year: 333 Days

Day: 14.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,182,384 km

• M1: 42,187 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.9

Radius: 13.2

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.04 AU - 1.18 AU

Year: 744 Days

Day: 12.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,182,384 km

• M1: 164,258 km (0.099 R)
• M2: 579,542 km (0.09 R)
• M3: 1,013,376 km (0.085 R)
• M4: 1,460,823 km (0.091 R)
• M5: 1,948,363 km (0.115 R)
• M6: 2,514,591 km (0.11 R)
• M7: 3,968,233 km (0.098 R)
• M8: 4,388,454 km (0.062 R)
• M9: 5,979,427 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.7

Radius: 14.4

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.49 AU - 1.65 AU

Year: 1251 Days

Day: 6 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,182,384 km

• M1: 179,069 km (0.061 R)
• M2: 948,151 km (0.076 R)
• M3: 1,489,097 km (0.052 R)
• M4: 1,961,078 km (0.063 R)
• M5: 2,658,803 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.9

Radius: 12.9

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.77 AU - 2.59 AU

Year: 2047 Days

Day: 13.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,182,384 km

• M1: 160,369 km (0.107 R)
• M2: 675,584 km (0.091 R)
• M3: 1,264,551 km (0.118 R)
• M4: 1,752,240 km (0.097 R)
• M5: 2,993,902 km (0.118 R)
• M6: 3,952,525 km (0.109 R)
• M7: 4,691,688 km (0.056 R)
• M8: 5,357,100 km (0.113 R)
• M9: 6,084,594 km (0.064 R)
• M10: 6,713,204 km (0.114 R)
• M11: 7,269,709 km (0.091 R)
• M12: 8,193,326 km (0.12 R)
• M13: 8,960,912 km (0.047 R)
• M14: 9,362,433 km (0.104 R)
• M15: 10,529,147 km (0.07 R)
• M16: 12,769,225 km (0.115 R)
• M17: 13,192,887 km (0.1 R)
• M18: 14,293,029 km (0.059 R)
• M19: 15,358,316 km (0.08 R)
• M20: 15,886,097 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168.7

Radius: 7.5

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 8.37 AU - 10.51 AU

Year: 18441 Days

Day: 24.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,182,384 km

• M1: 112,348 km (0.111 R)
• M2: 789,428 km (0.049 R)
• M3: 2,528,503 km (0.072 R)
• M4: 3,457,805 km (0.109 R)
• M5: 3,986,783 km (0.119 R)
• M6: 6,844,103 km (0.084 R)
• M7: 8,054,200 km (0.115 R)
• M8: 8,754,916 km (0.103 R)
• M9: 10,479,331 km (0.072 R)
• M10: 12,361,870 km (0.06 R)
• M11: 15,426,682 km (0.101 R)
• M12: 23,178,844 km (0.098 R)
• M13: 31,559,316 km (0.064 R)
• M14: 32,744,580 km (0.029 R)
• M15: 37,424,151 km (0.102 R)
• M16: 39,241,915 km (0.079 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 14,378 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit