🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.56 AU - 0.6 AU

Year: 290 Days

Day: 37.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980

Radius: 10.5

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.56 AU - 0.8 AU

Year: 368 Days

Day: 9.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,062,132 km

• M1: 130,599 km (0.084 R)
• M2: 512,971 km (0.12 R)
• M3: 874,250 km (0.029 R)
• M4: 1,270,684 km (0.045 R)
• M5: 1,888,075 km (0.092 R)
• M6: 2,320,712 km (0.069 R)
• M7: 2,695,604 km (0.118 R)
• M8: 3,328,852 km (0.054 R)
• M9: 3,719,153 km (0.056 R)
• M10: 4,126,208 km (0.116 R)
• M11: 5,496,675 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.5

Radius: 12.3

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.18 AU - 2.28 AU

Year: 2185 Days

Day: 7.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,062,132 km

• M1: 153,039 km (0.045 R)
• M2: 659,876 km (0.081 R)
• M3: 1,268,440 km (0.08 R)
• M4: 1,707,061 km (0.081 R)
• M5: 2,093,024 km (0.114 R)
• M6: 2,509,504 km (0.097 R)
• M7: 2,981,486 km (0.108 R)
• M8: 3,792,156 km (0.106 R)
• M9: 4,546,279 km (0.106 R)
• M10: 5,620,841 km (0.072 R)
• M11: 6,111,372 km (0.07 R)
• M12: 8,268,274 km (0.119 R)
• M13: 9,181,719 km (0.055 R)
• M14: 10,274,232 km (0.082 R)
• M15: 11,169,127 km (0.104 R)
• M16: 13,473,981 km (0.082 R)
• M17: 14,980,581 km (0.087 R)
• M18: 15,977,651 km (0.096 R)
• M19: 17,178,473 km (0.104 R)
• M20: 17,773,573 km (0.07 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.5

Radius: 6.7

Gravity: 11.88 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.27 AU - 9.87 AU

Year: 17919 Days

Day: 24.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 65,062,132 km

• M1: 83,476 km (0.07 R)
• M2: 375,191 km (0.066 R)
• M3: 685,158 km (0.096 R)
• M4: 970,441 km (0.102 R)
• M5: 1,362,238 km (0.059 R)
• M6: 1,587,533 km (0.09 R)
• M7: 1,963,472 km (0.085 R)
• M8: 2,212,553 km (0.105 R)
• M9: 2,751,554 km (0.105 R)
• M10: 2,990,461 km (0.069 R)
• M11: 4,057,693 km (0.073 R)
• M12: 4,795,061 km (0.098 R)
• M13: 5,249,539 km (0.118 R)
• M14: 5,809,334 km (0.116 R)
• M15: 7,405,095 km (0.025 R)
• M16: 8,501,647 km (0.096 R)
• M17: 8,855,895 km (0.113 R)
• M18: 12,893,092 km (0.097 R)
• M19: 14,118,748 km (0.084 R)
• M20: 14,615,712 km (0.102 R)
• M21: 15,345,899 km (0.034 R)
• M22: 16,253,809 km (0.087 R)
• M23: 16,799,691 km (0.065 R)
• M24: 17,600,638 km (0.088 R)
• M25: 21,991,186 km (0.063 R)
• M26: 22,755,332 km (0.056 R)
• M27: 26,095,404 km (0.097 R)
• M28: 27,386,733 km (0.087 R)
• M29: 29,748,285 km (0.099 R)
• M30: 30,919,187 km (0.071 R)
• M31: 31,515,933 km (0.06 R)
• M32: 35,000,815 km (0.113 R)
• M33: 35,259,171 km (0.099 R)
• M34: 37,506,580 km (0.066 R)
• M35: 52,012,936 km (0.105 R)
• M36: 54,745,640 km (0.076 R)
• M37: 59,571,368 km (0.079 R)
• M38: 62,371,092 km (0.071 R)
• M39: 62,750,921 km (0.038 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 165 - 17,781 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit