🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.49 AU - 0.63 AU

Year: 275 Days

Day: 33.4 Hours

Environment

Temp: -115 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,043,219 km

• M1: 295,905 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.7

Radius: 14.1

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.69 AU - 1.09 AU

Year: 551 Days

Day: 7.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,043,219 km

• M1: 175,329 km (0.107 R)
• M2: 659,577 km (0.099 R)
• M3: 1,100,741 km (0.115 R)
• M4: 1,841,251 km (0.083 R)
• M5: 2,318,318 km (0.084 R)
• M6: 3,406,942 km (0.072 R)
• M7: 3,938,762 km (0.042 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.1

Radius: 13.7

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.72 AU - 5.2 AU

Year: 7247 Days

Day: 9.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,043,219 km

• M1: 170,542 km (0.105 R)
• M2: 1,094,757 km (0.047 R)
• M3: 1,563,148 km (0.088 R)
• M4: 2,086,292 km (0.092 R)
• M5: 2,629,931 km (0.114 R)
• M6: 4,654,738 km (0.112 R)
• M7: 6,263,513 km (0.113 R)
• M8: 6,837,670 km (0.085 R)
• M9: 7,845,960 km (0.094 R)
• M10: 8,471,428 km (0.086 R)
• M11: 11,895,125 km (0.112 R)
• M12: 14,184,272 km (0.113 R)
• M13: 15,368,937 km (0.073 R)
• M14: 17,095,446 km (0.077 R)
• M15: 18,801,012 km (0.08 R)
• M16: 21,568,273 km (0.076 R)
• M17: 24,509,068 km (0.08 R)
• M18: 31,692,758 km (0.085 R)
• M19: 35,818,368 km (0.096 R)
• M20: 36,960,847 km (0.058 R)
• M21: 39,438,935 km (0.09 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 875.3

Radius: 5.5

Gravity: 28.94 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 6.31 AU - 7.55 AU

Year: 11968 Days

Day: 23.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,043,219 km

• M1: 68,366 km (0.072 R)
• M2: 295,007 km (0.069 R)
• M3: 595,400 km (0.119 R)
• M4: 1,133,802 km (0.096 R)
• M5: 1,587,233 km (0.096 R)
• M6: 2,349,883 km (0.062 R)
• M7: 2,557,824 km (0.115 R)
• M8: 5,880,991 km (0.085 R)
• M9: 8,494,317 km (0.074 R)
• M10: 9,444,413 km (0.114 R)
• M11: 15,929,480 km (0.093 R)
• M12: 19,813,041 km (0.116 R)
• M13: 20,069,452 km (0.05 R)
• M14: 20,328,107 km (0.053 R)
• M15: 34,902,829 km (0.077 R)
• M16: 47,325,885 km (0.048 R)
• M17: 54,682,510 km (0.081 R)
• M18: 57,931,177 km (0.115 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 499.7

Radius: 4.4

Gravity: 25.81 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 6.25 AU - 10.29 AU

Year: 15602 Days

Day: 18.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,043,219 km

• M1: 54,902 km (0.056 R)
• M2: 381,774 km (0.069 R)
• M3: 639,082 km (0.076 R)
• M4: 907,461 km (0.032 R)
• M5: 1,050,626 km (0.068 R)
• M6: 1,273,975 km (0.117 R)
• M7: 1,454,390 km (0.063 R)
• M8: 2,027,051 km (0.066 R)
• M9: 2,605,397 km (0.034 R)
• M10: 2,760,230 km (0.067 R)
• M11: 3,186,734 km (0.089 R)
• M12: 3,468,127 km (0.105 R)
• M13: 3,964,194 km (0.087 R)
• M14: 5,517,020 km (0.064 R)
• M15: 5,885,180 km (0.114 R)
• M16: 6,588,739 km (0.113 R)
• M17: 7,434,565 km (0.04 R)
• M18: 8,114,637 km (0.113 R)
• M19: 9,236,621 km (0.034 R)
• M20: 10,513,589 km (0.068 R)
• M21: 11,078,919 km (0.038 R)
• M22: 11,427,632 km (0.091 R)
• M23: 14,972,802 km (0.045 R)
• M24: 15,760,285 km (0.078 R)
• M25: 17,888,913 km (0.039 R)
• M26: 18,939,240 km (0.118 R)
• M27: 19,690,072 km (0.102 R)
• M28: 21,789,079 km (0.117 R)
• M29: 21,970,542 km (0.041 R)
• M30: 23,936,108 km (0.098 R)
• M31: 27,047,445 km (0.118 R)
• M32: 29,191,631 km (0.084 R)
• M33: 29,744,844 km (0.118 R)
• M34: 38,504,248 km (0.084 R)
• M35: 41,072,694 km (0.053 R)
• M36: 46,547,826 km (0.103 R)
• M37: 46,848,817 km (0.066 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 11,325 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit