🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.9

Radius: 12.1

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.54 AU - 0.78 AU

Year: 364 Days

Day: 11.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,834,218 km

• M1: 150,495 km (0.057 R)
• M2: 595,400 km (0.03 R)
• M3: 978,520 km (0.119 R)
• M4: 1,555,668 km (0.061 R)
• M5: 2,245,464 km (0.078 R)
• M6: 2,697,100 km (0.114 R)
• M7: 3,231,912 km (0.1 R)
• M8: 3,635,527 km (0.096 R)
• M9: 4,516,360 km (0.079 R)
• M10: 5,551,128 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.9

Radius: 11.8

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.68 AU - 0.78 AU

Year: 423 Days

Day: 7.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,834,218 km

• M1: 148,999 km (0.101 R)
• M2: 539,151 km (0.06 R)
• M3: 1,093,860 km (0.094 R)
• M4: 1,645,427 km (0.035 R)
• M5: 2,099,307 km (0.116 R)
• M6: 2,539,723 km (0.118 R)
• M7: 3,520,786 km (0.074 R)
• M8: 4,359,880 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.5

Radius: 8.5

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.88 AU - 0.92 AU

Year: 579 Days

Day: 14.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,834,218 km

• M1: 113,545 km (0.115 R)
• M2: 436,975 km (0.059 R)
• M3: 922,121 km (0.051 R)
• M4: 1,817,614 km (0.067 R)
• M5: 2,229,307 km (0.105 R)
• M6: 2,822,313 km (0.043 R)
• M7: 3,427,138 km (0.1 R)
• M8: 4,086,864 km (0.08 R)
• M9: 4,717,569 km (0.101 R)
• M10: 5,308,480 km (0.106 R)
• M11: 5,747,101 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.6

Radius: 8.6

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.2 AU - 1.28 AU

Year: 937 Days

Day: 6.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,834,218 km

• M1: 107,561 km (0.035 R)
• M2: 388,954 km (0.111 R)
• M3: 709,244 km (0.082 R)
• M4: 1,041,201 km (0.11 R)
• M5: 1,383,930 km (0.038 R)
• M6: 1,742,815 km (0.064 R)
• M7: 2,606,444 km (0.097 R)
• M8: 3,273,052 km (0.099 R)
• M9: 3,578,082 km (0.09 R)
• M10: 3,872,939 km (0.083 R)
• M11: 4,245,288 km (0.033 R)
• M12: 4,608,961 km (0.053 R)
• M13: 5,864,237 km (0.106 R)
• M14: 6,136,505 km (0.089 R)
• M15: 6,540,120 km (0.058 R)
• M16: 7,113,080 km (0.102 R)
• M17: 7,423,046 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.2

Radius: 10.3

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.13 AU - 1.39 AU

Year: 959 Days

Day: 7.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,834,218 km

• M1: 131,197 km (0.045 R)
• M2: 456,124 km (0.058 R)
• M3: 779,255 km (0.046 R)
• M4: 1,939,985 km (0.09 R)
• M5: 3,816,541 km (0.03 R)
• M6: 4,548,523 km (0.111 R)
• M7: 5,235,925 km (0.095 R)
• M8: 6,252,443 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.6

Radius: 12.5

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.08 AU - 3.92 AU

Year: 4441 Days

Day: 11 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,834,218 km

• M1: 155,432 km (0.096 R)
• M2: 676,781 km (0.055 R)
• M3: 1,140,385 km (0.08 R)
• M4: 3,192,419 km (0.075 R)
• M5: 3,991,122 km (0.082 R)
• M6: 4,594,749 km (0.111 R)
• M7: 5,304,890 km (0.12 R)
• M8: 5,985,261 km (0.108 R)
• M9: 8,412,187 km (0.087 R)
• M10: 12,403,010 km (0.091 R)
• M11: 14,737,933 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384

Radius: 7.1

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 6.6 AU - 9.78 AU

Year: 15897 Days

Day: 16.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 53,834,218 km

• M1: 93,499 km (0.058 R)
• M2: 321,037 km (0.115 R)
• M3: 645,066 km (0.029 R)
• M4: 1,539,362 km (0.036 R)
• M5: 2,554,234 km (0.095 R)
• M6: 3,425,941 km (0.06 R)
• M7: 3,658,715 km (0.094 R)
• M8: 4,070,259 km (0.074 R)
• M9: 4,302,136 km (0.117 R)
• M10: 4,856,396 km (0.083 R)
• M11: 5,921,383 km (0.087 R)
• M12: 6,257,829 km (0.031 R)
• M13: 9,376,047 km (0.087 R)
• M14: 10,412,909 km (0.101 R)
• M15: 13,084,279 km (0.083 R)
• M16: 13,336,201 km (0.057 R)
• M17: 15,122,400 km (0.067 R)
• M18: 17,591,214 km (0.103 R)
• M19: 19,569,496 km (0.119 R)
• M20: 22,581,499 km (0.07 R)
• M21: 23,961,989 km (0.116 R)
• M22: 27,709,565 km (0.036 R)
• M23: 28,651,134 km (0.102 R)
• M24: 34,393,149 km (0.087 R)
• M25: 36,217,495 km (0.076 R)
• M26: 37,342,471 km (0.09 R)
• M27: 45,014,298 km (0.064 R)
• M28: 46,753,224 km (0.098 R)
• M29: 50,364,517 km (0.071 R)
• M30: 52,554,630 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: 451 - 19,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit