🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.53 AU - 0.73 AU

Year: 323 Days

Day: 30.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.1

Radius: 10.4

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.76 AU - 0.88 AU

Year: 479 Days

Day: 9 Hours

Environment

Temp: -157 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,534,009 km

• M1: 129,402 km (0.119 R)
• M2: 464,950 km (0.09 R)
• M3: 1,054,216 km (0.066 R)
• M4: 1,417,589 km (0.027 R)
• M5: 2,309,941 km (0.117 R)
• M6: 2,844,304 km (0.099 R)
• M7: 4,070,259 km (0.065 R)
• M8: 4,722,805 km (0.111 R)
• M9: 5,256,869 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.2

Radius: 13.7

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.9 AU - 2.26 AU

Year: 1937 Days

Day: 9 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,534,009 km

• M1: 170,392 km (0.046 R)
• M2: 627,114 km (0.075 R)
• M3: 1,232,537 km (0.103 R)
• M4: 1,785,899 km (0.101 R)
• M5: 2,427,973 km (0.03 R)
• M6: 3,220,842 km (0.033 R)
• M7: 4,017,451 km (0.119 R)
• M8: 4,638,731 km (0.098 R)
• M9: 5,109,066 km (0.103 R)
• M10: 5,839,852 km (0.027 R)
• M11: 6,267,253 km (0.089 R)
• M12: 6,973,954 km (0.096 R)
• M13: 7,401,355 km (0.088 R)
• M14: 8,104,165 km (0.109 R)
• M15: 8,577,194 km (0.098 R)
• M16: 11,189,322 km (0.064 R)
• M17: 11,776,943 km (0.107 R)
• M18: 12,775,658 km (0.073 R)
• M19: 13,417,732 km (0.098 R)
• M20: 14,250,693 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.4

Radius: 12.1

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.38 AU - 2.66 AU

Year: 2583 Days

Day: 14.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,534,009 km

• M1: 150,495 km (0.112 R)
• M2: 533,167 km (0.104 R)
• M3: 969,993 km (0.117 R)
• M4: 1,506,750 km (0.082 R)
• M5: 2,105,889 km (0.117 R)
• M6: 3,023,523 km (0.096 R)
• M7: 4,785,337 km (0.056 R)
• M8: 5,561,750 km (0.094 R)
• M9: 6,881,801 km (0.073 R)
• M10: 8,468,436 km (0.066 R)
• M11: 8,953,582 km (0.107 R)
• M12: 9,641,583 km (0.05 R)
• M13: 10,286,649 km (0.119 R)
• M14: 10,759,228 km (0.103 R)
• M15: 13,022,644 km (0.079 R)
• M16: 13,906,319 km (0.062 R)
• M17: 15,179,846 km (0.094 R)
• M18: 16,690,335 km (0.116 R)
• M19: 17,233,824 km (0.107 R)
• M20: 18,184,818 km (0.056 R)
• M21: 20,436,565 km (0.089 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861.4

Radius: 6.7

Gravity: 19.19 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 6.46 AU - 8.8 AU

Year: 13608 Days

Day: 24.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 63,534,009 km

• M1: 83,326 km (0.1 R)
• M2: 343,178 km (0.116 R)
• M3: 590,912 km (0.091 R)
• M4: 971,489 km (0.062 R)
• M5: 1,630,766 km (0.092 R)
• M6: 2,085,544 km (0.102 R)
• M7: 3,068,402 km (0.103 R)
• M8: 3,905,402 km (0.072 R)
• M9: 4,267,279 km (0.095 R)
• M10: 5,092,910 km (0.109 R)
• M11: 5,750,393 km (0.101 R)
• M12: 7,188,477 km (0.118 R)
• M13: 11,226,273 km (0.063 R)
• M14: 13,857,251 km (0.075 R)
• M15: 14,770,546 km (0.065 R)
• M16: 17,030,371 km (0.043 R)
• M17: 19,166,928 km (0.066 R)
• M18: 20,299,533 km (0.098 R)
• M19: 21,109,157 km (0.085 R)
• M20: 27,390,473 km (0.117 R)
• M21: 28,378,716 km (0.11 R)
• M22: 33,803,584 km (0.093 R)
• M23: 35,841,555 km (0.081 R)
• M24: 36,363,652 km (0.086 R)
• M25: 39,602,745 km (0.119 R)
• M26: 40,582,462 km (0.089 R)
• M27: 42,736,222 km (0.059 R)
• M28: 45,419,858 km (0.038 R)
• M29: 47,583,343 km (0.111 R)
• M30: 52,952,859 km (0.097 R)
• M31: 55,001,303 km (0.095 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 432 - 17,312 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit