🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.51 AU - 2.55 AU

Year: 1532 Days

Day: 43.1 Hours

Environment

Temp: -109 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.93 AU - 4.01 AU

Year: 2461 Days

Day: 43.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.24 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.3

Radius: 11.1

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.38 AU - 5.64 AU

Year: 4270 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 90,337,169 km

• M1: 138,378 km (0.077 R)
• M2: 568,472 km (0.097 R)
• M3: 1,241,214 km (0.1 R)
• M4: 2,448,768 km (0.108 R)
• M5: 3,017,838 km (0.096 R)
• M6: 3,600,222 km (0.09 R)
• M7: 4,035,702 km (0.052 R)
• M8: 4,700,066 km (0.082 R)
• M9: 5,460,322 km (0.09 R)
• M10: 6,710,063 km (0.113 R)
• M11: 7,254,150 km (0.1 R)
• M12: 9,623,930 km (0.066 R)
• M13: 15,048,199 km (0.095 R)
• M14: 15,732,610 km (0.113 R)
• M15: 16,797,747 km (0.108 R)
• M16: 17,748,441 km (0.1 R)
• M17: 18,346,982 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.7

Radius: 10.4

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 7.49 AU - 7.49 AU

Year: 7806 Days

Day: 12 Hours

Environment

Temp: -176 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,337,169 km

• M1: 166,054 km (0.047 R)
• M2: 579,243 km (0.08 R)
• M3: 1,089,970 km (0.071 R)
• M4: 1,506,899 km (0.111 R)
• M5: 2,789,402 km (0.118 R)
• M6: 3,191,072 km (0.049 R)
• M7: 4,244,690 km (0.075 R)
• M8: 5,230,989 km (0.101 R)
• M9: 11,517,390 km (0.087 R)
• M10: 16,588,908 km (0.091 R)
• M11: 17,628,912 km (0.108 R)
• M12: 18,711,702 km (0.084 R)
• M13: 20,223,837 km (0.112 R)
• M14: 21,169,295 km (0.097 R)
• M15: 26,158,833 km (0.07 R)
• M16: 28,434,666 km (0.103 R)
• M17: 30,531,878 km (0.08 R)
• M18: 38,743,455 km (0.112 R)
• M19: 40,077,718 km (0.114 R)
• M20: 42,072,606 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.8

Radius: 13.4

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 8.6 AU - 12.36 AU

Year: 12919 Days

Day: 7.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 90,337,169 km

• M1: 166,802 km (0.082 R)
• M2: 987,196 km (0.111 R)
• M3: 1,629,270 km (0.106 R)
• M4: 2,625,143 km (0.117 R)
• M5: 4,168,245 km (0.064 R)
• M6: 5,575,213 km (0.118 R)
• M7: 6,527,703 km (0.119 R)
• M8: 8,416,376 km (0.107 R)
• M9: 9,153,894 km (0.06 R)
• M10: 11,867,449 km (0.098 R)
• M11: 13,310,321 km (0.074 R)
• M12: 14,243,961 km (0.05 R)
• M13: 16,093,440 km (0.087 R)
• M14: 17,858,695 km (0.065 R)
• M15: 18,583,496 km (0.06 R)
• M16: 23,161,490 km (0.118 R)
• M17: 25,206,493 km (0.112 R)
• M18: 26,016,416 km (0.073 R)
• M19: 27,794,836 km (0.067 R)
• M20: 29,653,140 km (0.09 R)
• M21: 31,592,976 km (0.113 R)
• M22: 37,004,679 km (0.119 R)
• M23: 46,990,187 km (0.119 R)
• M24: 53,338,223 km (0.076 R)
• M25: 53,836,235 km (0.091 R)
• M26: 59,520,505 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.8

Radius: 5.5

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 10.77 AU - 15.03 AU

Year: 17643 Days

Day: 24.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 90,337,169 km

• M1: 69,713 km (0.077 R)
• M2: 453,282 km (0.045 R)
• M3: 676,930 km (0.07 R)
• M4: 862,731 km (0.069 R)
• M5: 2,067,891 km (0.118 R)
• M6: 3,123,604 km (0.116 R)
• M7: 3,518,392 km (0.097 R)
• M8: 4,001,743 km (0.042 R)
• M9: 4,407,303 km (0.082 R)
• M10: 5,897,896 km (0.104 R)
• M11: 7,226,475 km (0.092 R)
• M12: 8,185,547 km (0.04 R)
• M13: 10,141,838 km (0.101 R)
• M14: 14,344,940 km (0.111 R)
• M15: 16,279,839 km (0.036 R)
• M16: 17,234,722 km (0.043 R)
• M17: 19,094,523 km (0.105 R)
• M18: 21,428,698 km (0.09 R)
• M19: 22,395,400 km (0.089 R)
• M20: 23,482,827 km (0.06 R)
• M21: 26,855,211 km (0.083 R)
• M22: 27,566,250 km (0.064 R)
• M23: 28,814,345 km (0.094 R)
• M24: 29,774,913 km (0.12 R)
• M25: 30,427,010 km (0.102 R)
• M26: 32,440,298 km (0.112 R)
• M27: 41,248,770 km (0.092 R)
• M28: 43,293,773 km (0.102 R)
• M29: 44,411,569 km (0.098 R)
• M30: 46,704,754 km (0.103 R)
• M31: 52,780,672 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.8

Radius: 6.7

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 13.21 AU - 14.45 AU

Year: 19585 Days

Day: 16 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,337,169 km

• M1: 86,318 km (0.089 R)
• M2: 391,647 km (0.081 R)
• M3: 647,609 km (0.066 R)
• M4: 1,043,744 km (0.032 R)
• M5: 2,039,019 km (0.086 R)
• M6: 3,044,167 km (0.106 R)
• M7: 5,889,070 km (0.037 R)
• M8: 8,407,550 km (0.051 R)
• M9: 16,386,951 km (0.092 R)
• M10: 22,924,976 km (0.088 R)
• M11: 27,960,291 km (0.037 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825

Radius: 3.3

Gravity: 75.76 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 14.9 AU - 16.4 AU

Year: 23576 Days

Day: 21 Hours

Environment

Temp: -203 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 90,337,169 km

• M1: 40,990 km (0.063 R)
• M2: 204,949 km (0.099 R)
• M3: 364,420 km (0.089 R)
• M4: 1,153,998 km (0.086 R)
• M5: 2,002,068 km (0.115 R)
• M6: 2,153,461 km (0.113 R)
• M7: 2,335,672 km (0.114 R)
• M8: 2,783,418 km (0.088 R)
• M9: 3,684,745 km (0.12 R)
• M10: 4,218,959 km (0.094 R)
• M11: 4,764,692 km (0.093 R)
• M12: 5,153,946 km (0.104 R)
• M13: 5,648,367 km (0.107 R)
• M14: 6,588,589 km (0.115 R)
• M15: 7,071,043 km (0.089 R)
• M16: 7,576,534 km (0.065 R)
• M17: 9,356,150 km (0.12 R)
• M18: 9,718,177 km (0.101 R)
• M19: 10,992,751 km (0.046 R)
• M20: 12,374,736 km (0.107 R)
• M21: 14,819,614 km (0.1 R)
• M22: 15,394,219 km (0.026 R)
• M23: 18,586,039 km (0.099 R)
• M24: 21,147,305 km (0.075 R)
• M25: 21,250,228 km (0.044 R)
• M26: 23,711,562 km (0.108 R)
• M27: 24,046,063 km (0.106 R)
• M28: 24,383,555 km (0.06 R)
• M29: 25,882,975 km (0.03 R)
• M30: 26,475,682 km (0.11 R)
• M31: 27,320,610 km (0.1 R)
• M32: 28,810,456 km (0.095 R)
• M33: 30,222,959 km (0.106 R)
• M34: 36,188,024 km (0.116 R)
• M35: 44,391,672 km (0.094 R)
• M36: 47,673,550 km (0.047 R)
• M37: 52,045,249 km (0.063 R)
• M38: 63,268,829 km (0.081 R)
• M39: 65,429,022 km (0.034 R)
• M40: 70,124,451 km (0.078 R)
• M41: 81,184,072 km (0.119 R)
• M42: 84,507,837 km (0.071 R)
• M43: 85,548,440 km (0.077 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 18,425 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit