🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.44 AU - 0.62 AU

Year: 253 Days

Day: 19.8 Hours

Environment

Temp: -112 °C

Axial Tilt: 117 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 59,104,212 km

• M1: 31,266 km (0.092 R)
• M2: 319,092 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.54 AU - 0.8 AU

Year: 360 Days

Day: 23.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.3

Radius: 11.6

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.64 AU - 0.8 AU

Year: 401 Days

Day: 14.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 59,104,212 km

• M1: 144,212 km (0.108 R)
• M2: 2,518,031 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.1

Radius: 12

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.78 AU - 0.86 AU

Year: 487 Days

Day: 8.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,104,212 km

• M1: 149,448 km (0.114 R)
• M2: 555,008 km (0.118 R)
• M3: 963,261 km (0.077 R)
• M4: 1,541,157 km (0.111 R)
• M5: 2,009,399 km (0.063 R)
• M6: 2,782,520 km (0.111 R)
• M7: 3,435,066 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.9

Radius: 12.2

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.77 AU - 4.17 AU

Year: 5189 Days

Day: 12.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,104,212 km

• M1: 151,692 km (0.055 R)
• M2: 558,299 km (0.056 R)
• M3: 1,253,481 km (0.073 R)
• M4: 1,745,508 km (0.087 R)
• M5: 2,780,875 km (0.102 R)
• M6: 4,931,494 km (0.094 R)
• M7: 5,644,627 km (0.06 R)
• M8: 6,208,312 km (0.111 R)
• M9: 6,809,396 km (0.049 R)
• M10: 8,239,103 km (0.071 R)
• M11: 9,487,198 km (0.096 R)
• M12: 10,679,493 km (0.117 R)
• M13: 11,311,843 km (0.051 R)
• M14: 12,503,240 km (0.079 R)
• M15: 15,190,617 km (0.065 R)
• M16: 15,587,350 km (0.096 R)
• M17: 16,107,502 km (0.068 R)
• M18: 17,000,452 km (0.055 R)
• M19: 17,800,651 km (0.106 R)
• M20: 21,184,554 km (0.099 R)
• M21: 22,694,895 km (0.119 R)
• M22: 25,929,051 km (0.078 R)
• M23: 27,656,158 km (0.095 R)
• M24: 28,419,257 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.3

Radius: 4.8

Gravity: 35.73 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.79 AU - 7.47 AU

Year: 12489 Days

Day: 19.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 59,104,212 km

• M1: 59,839 km (0.085 R)
• M2: 236,065 km (0.116 R)
• M3: 392,694 km (0.087 R)
• M4: 583,432 km (0.092 R)
• M5: 906,862 km (0.088 R)
• M6: 1,097,450 km (0.057 R)
• M7: 1,247,945 km (0.07 R)
• M8: 1,669,961 km (0.112 R)
• M9: 2,086,591 km (0.111 R)
• M10: 3,026,365 km (0.12 R)
• M11: 3,376,873 km (0.071 R)
• M12: 3,535,297 km (0.116 R)
• M13: 4,465,496 km (0.092 R)
• M14: 9,776,520 km (0.084 R)
• M15: 12,309,960 km (0.119 R)
• M16: 12,813,357 km (0.083 R)
• M17: 13,005,590 km (0.049 R)
• M18: 14,268,346 km (0.075 R)
• M19: 15,249,409 km (0.108 R)
• M20: 15,977,352 km (0.036 R)
• M21: 16,880,923 km (0.069 R)
• M22: 21,551,518 km (0.107 R)
• M23: 22,282,154 km (0.091 R)
• M24: 27,226,064 km (0.118 R)
• M25: 32,377,318 km (0.112 R)
• M26: 33,698,716 km (0.034 R)
• M27: 36,192,512 km (0.112 R)
• M28: 37,353,840 km (0.111 R)
• M29: 41,264,777 km (0.111 R)
• M30: 50,843,080 km (0.111 R)
• M31: 53,284,069 km (0.085 R)
• M32: 54,282,036 km (0.045 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 19,197 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit