🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.59 AU - 0.91 AU

Year: 237 Days

Day: 30 Hours

Environment

Temp: 156 °C

Axial Tilt: 2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.83 AU - 0.97 AU

Year: 312 Days

Day: 12.1 Hours

Environment

Temp: 104 °C

Axial Tilt: 8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.75 AU - 1.25 AU

Year: 365 Days

Day: 17.1 Hours

Environment

Temp: 34 °C

Axial Tilt: 33.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.83 AU - 1.23 AU

Year: 382 Days

Day: 17.3 Hours

Environment

Temp: 19 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 87,853,123 km

• M1: 176,226 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.9

Radius: 8.4

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.51 AU - 5.67 AU

Year: 4194 Days

Day: 6.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 87,853,123 km

• M1: 104,569 km (0.112 R)
• M2: 389,553 km (0.113 R)
• M3: 775,515 km (0.109 R)
• M4: 1,160,879 km (0.064 R)
• M5: 1,564,943 km (0.083 R)
• M6: 2,089,134 km (0.088 R)
• M7: 3,268,713 km (0.103 R)
• M8: 3,839,130 km (0.032 R)
• M9: 5,391,507 km (0.064 R)
• M10: 6,128,127 km (0.108 R)
• M11: 6,770,800 km (0.099 R)
• M12: 7,662,253 km (0.06 R)
• M13: 8,855,446 km (0.045 R)
• M14: 9,920,284 km (0.119 R)
• M15: 12,113,837 km (0.118 R)
• M16: 13,778,113 km (0.081 R)
• M17: 17,554,413 km (0.081 R)
• M18: 19,420,347 km (0.118 R)
• M19: 20,401,260 km (0.096 R)
• M20: 23,541,918 km (0.061 R)
• M21: 24,505,926 km (0.11 R)
• M22: 24,959,657 km (0.087 R)
• M23: 25,419,072 km (0.109 R)
• M24: 25,961,962 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.3

Radius: 11.2

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.17 AU - 6.13 AU

Year: 4269 Days

Day: 5.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,853,123 km

• M1: 155,432 km (0.097 R)
• M2: 532,120 km (0.116 R)
• M3: 1,151,305 km (0.07 R)
• M4: 1,885,681 km (0.073 R)
• M5: 2,582,658 km (0.078 R)
• M6: 4,229,431 km (0.08 R)
• M7: 4,664,910 km (0.119 R)
• M8: 6,019,669 km (0.064 R)
• M9: 7,341,216 km (0.03 R)
• M10: 7,747,674 km (0.057 R)
• M11: 8,952,086 km (0.101 R)
• M12: 10,987,365 km (0.08 R)
• M13: 12,156,173 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.3

Radius: 8.1

Gravity: 8.91 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.77 AU - 7.93 AU

Year: 5845 Days

Day: 6.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,853,123 km

• M1: 100,679 km (0.083 R)
• M2: 385,813 km (0.096 R)
• M3: 752,328 km (0.029 R)
• M4: 1,218,475 km (0.101 R)
• M5: 1,838,857 km (0.064 R)
• M6: 2,332,231 km (0.046 R)
• M7: 2,654,614 km (0.113 R)
• M8: 3,124,052 km (0.056 R)
• M9: 3,759,394 km (0.098 R)
• M10: 4,107,958 km (0.104 R)
• M11: 4,478,063 km (0.114 R)
• M12: 7,613,634 km (0.077 R)
• M13: 8,482,648 km (0.108 R)
• M14: 11,059,172 km (0.11 R)
• M15: 11,728,024 km (0.119 R)
• M16: 13,517,813 km (0.082 R)
• M17: 14,960,086 km (0.041 R)
• M18: 16,748,529 km (0.112 R)
• M19: 19,829,946 km (0.096 R)
• M20: 21,613,900 km (0.098 R)
• M21: 23,192,906 km (0.069 R)
• M22: 24,928,092 km (0.107 R)
• M23: 27,002,864 km (0.118 R)
• M24: 28,566,162 km (0.094 R)
• M25: 29,641,472 km (0.034 R)
• M26: 30,743,410 km (0.119 R)
• M27: 31,304,402 km (0.075 R)
• M28: 31,777,280 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.8

Radius: 8.3

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.13 AU - 6.57 AU

Year: 5845 Days

Day: 14.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,853,123 km

• M1: 107,561 km (0.066 R)
• M2: 378,931 km (0.083 R)
• M3: 666,907 km (0.115 R)
• M4: 955,482 km (0.092 R)
• M5: 1,520,662 km (0.11 R)
• M6: 2,123,243 km (0.101 R)
• M7: 3,007,964 km (0.111 R)
• M8: 3,533,651 km (0.076 R)
• M9: 3,909,591 km (0.115 R)
• M10: 5,035,016 km (0.114 R)
• M11: 5,397,042 km (0.075 R)
• M12: 6,820,017 km (0.037 R)
• M13: 7,333,736 km (0.112 R)
• M14: 7,836,385 km (0.086 R)
• M15: 8,400,220 km (0.09 R)
• M16: 9,316,806 km (0.108 R)
• M17: 9,863,586 km (0.075 R)
• M18: 10,565,798 km (0.088 R)
• M19: 10,929,172 km (0.045 R)
• M20: 11,922,801 km (0.061 R)
• M21: 14,865,540 km (0.099 R)
• M22: 17,810,075 km (0.12 R)
• M23: 20,067,956 km (0.044 R)
• M24: 21,265,487 km (0.091 R)
• M25: 21,991,934 km (0.108 R)
• M26: 23,264,414 km (0.12 R)
• M27: 24,585,363 km (0.087 R)
• M28: 25,385,412 km (0.109 R)
• M29: 27,037,422 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.8

Radius: 6.8

Gravity: 11.78 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 14.77 AU - 21.17 AU

Year: 27824 Days

Day: 18 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 87,853,123 km

• M1: 268,678 km (0.04 R)
• M2: 622,477 km (0.082 R)
• M3: 1,097,749 km (0.115 R)
• M4: 1,375,253 km (0.111 R)
• M5: 1,663,080 km (0.12 R)
• M6: 1,929,813 km (0.096 R)
• M7: 2,750,207 km (0.088 R)
• M8: 3,069,748 km (0.102 R)
• M9: 3,325,561 km (0.107 R)
• M10: 4,011,168 km (0.108 R)
• M11: 4,248,131 km (0.038 R)
• M12: 4,530,272 km (0.105 R)
• M13: 4,824,980 km (0.04 R)
• M14: 5,534,972 km (0.047 R)
• M15: 7,923,601 km (0.08 R)
• M16: 9,730,593 km (0.037 R)
• M17: 10,410,516 km (0.1 R)
• M18: 10,794,384 km (0.039 R)
• M19: 12,496,808 km (0.104 R)
• M20: 13,524,545 km (0.117 R)
• M21: 17,476,322 km (0.103 R)
• M22: 18,572,576 km (0.048 R)
• M23: 20,901,216 km (0.081 R)
• M24: 21,822,440 km (0.083 R)
• M25: 22,345,883 km (0.098 R)
• M26: 24,523,280 km (0.061 R)
• M27: 24,748,574 km (0.115 R)
• M28: 25,088,909 km (0.118 R)
• M29: 29,168,742 km (0.098 R)
• M30: 35,794,881 km (0.09 R)
• M31: 45,190,824 km (0.051 R)
• M32: 46,901,326 km (0.04 R)
• M33: 70,909,840 km (0.102 R)
• M34: 72,519,363 km (0.118 R)
• M35: 80,934,094 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 16,984 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit