🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.1

Radius: 10.3

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.59 AU - 0.61 AU

Year: 310 Days

Day: 10.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,367,861 km

• M1: 128,056 km (0.115 R)
• M2: 552,615 km (0.072 R)
• M3: 910,004 km (0.07 R)
• M4: 1,387,071 km (0.115 R)
• M5: 1,912,908 km (0.045 R)
• M6: 2,374,717 km (0.034 R)
• M7: 3,242,534 km (0.094 R)
• M8: 3,891,639 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.2

Radius: 13.5

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.59 AU - 0.61 AU

Year: 310 Days

Day: 5.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,367,861 km

• M1: 167,849 km (0.099 R)
• M2: 615,446 km (0.087 R)
• M3: 1,287,290 km (0.105 R)
• M4: 1,726,060 km (0.071 R)
• M5: 2,325,948 km (0.099 R)
• M6: 2,789,851 km (0.118 R)
• M7: 3,239,542 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303

Radius: 12.5

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.86 AU - 0.88 AU

Year: 541 Days

Day: 11 Hours

Environment

Temp: -177 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,367,861 km

• M1: 155,432 km (0.033 R)
• M2: 572,810 km (0.059 R)
• M3: 1,149,660 km (0.057 R)
• M4: 2,940,496 km (0.065 R)
• M5: 3,717,357 km (0.119 R)
• M6: 4,180,812 km (0.12 R)
• M7: 4,912,345 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.3

Radius: 11.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.53 AU - 2.33 AU

Year: 1788 Days

Day: 5.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,367,861 km

• M1: 146,756 km (0.065 R)
• M2: 595,848 km (0.1 R)
• M3: 1,290,132 km (0.043 R)
• M4: 1,741,768 km (0.095 R)
• M5: 2,299,020 km (0.095 R)
• M6: 3,373,282 km (0.116 R)
• M7: 3,897,922 km (0.114 R)
• M8: 4,418,074 km (0.093 R)
• M9: 5,047,582 km (0.091 R)
• M10: 5,439,977 km (0.089 R)
• M11: 5,852,867 km (0.071 R)
• M12: 7,111,284 km (0.073 R)
• M13: 7,605,855 km (0.089 R)
• M14: 8,787,828 km (0.113 R)
• M15: 9,197,277 km (0.091 R)
• M16: 10,122,540 km (0.035 R)
• M17: 11,000,231 km (0.096 R)
• M18: 13,812,371 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.1

Radius: 12.4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.17 AU - 3.37 AU

Year: 3074 Days

Day: 8 Hours

Environment

Temp: -212 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,367,861 km

• M1: 154,235 km (0.063 R)
• M2: 634,744 km (0.097 R)
• M3: 1,155,494 km (0.116 R)
• M4: 2,641,898 km (0.114 R)
• M5: 3,387,045 km (0.064 R)
• M6: 4,019,246 km (0.034 R)
• M7: 5,520,311 km (0.09 R)
• M8: 7,336,429 km (0.102 R)
• M9: 8,131,392 km (0.08 R)
• M10: 8,842,880 km (0.119 R)
• M11: 10,429,066 km (0.098 R)
• M12: 11,982,191 km (0.069 R)
• M13: 12,949,042 km (0.066 R)
• M14: 15,440,744 km (0.112 R)
• M15: 16,058,284 km (0.059 R)
• M16: 17,124,169 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.5

Radius: 13.3

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 3.97 AU - 5.35 AU

Year: 6708 Days

Day: 6 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,367,861 km

• M1: 165,455 km (0.103 R)
• M2: 636,539 km (0.065 R)
• M3: 1,064,090 km (0.115 R)
• M4: 1,847,683 km (0.095 R)
• M5: 2,421,990 km (0.075 R)
• M6: 2,909,379 km (0.081 R)
• M7: 3,417,414 km (0.12 R)
• M8: 7,018,982 km (0.111 R)
• M9: 12,019,142 km (0.106 R)
• M10: 12,666,452 km (0.119 R)
• M11: 14,567,541 km (0.099 R)
• M12: 16,520,392 km (0.038 R)
• M13: 19,657,609 km (0.032 R)
• M14: 20,405,299 km (0.05 R)
• M15: 24,007,017 km (0.087 R)
• M16: 25,121,821 km (0.06 R)
• M17: 28,200,246 km (0.078 R)
• M18: 30,718,128 km (0.086 R)
• M19: 32,650,483 km (0.102 R)
• M20: 34,770,734 km (0.116 R)
• M21: 35,643,937 km (0.095 R)
• M22: 38,351,658 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.3

Radius: 5.7

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.62 AU - 9.28 AU

Year: 13560 Days

Day: 21.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,367,861 km

• M1: 70,909 km (0.083 R)
• M2: 538,253 km (0.079 R)
• M3: 1,331,720 km (0.072 R)
• M4: 2,504,568 km (0.057 R)
• M5: 3,015,743 km (0.102 R)
• M6: 3,366,401 km (0.114 R)
• M7: 3,853,641 km (0.065 R)
• M8: 4,195,921 km (0.114 R)
• M9: 5,456,882 km (0.113 R)
• M10: 5,859,150 km (0.089 R)
• M11: 7,118,166 km (0.108 R)
• M12: 10,766,708 km (0.062 R)
• M13: 11,079,966 km (0.111 R)
• M14: 14,883,043 km (0.104 R)
• M15: 19,739,140 km (0.104 R)
• M16: 27,005,108 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97.6

Radius: 4.7

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.15 AU - 9.41 AU

Year: 15888 Days

Day: 22.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,367,861 km

• M1: 58,493 km (0.114 R)
• M2: 208,539 km (0.086 R)
• M3: 622,776 km (0.058 R)
• M4: 837,898 km (0.096 R)
• M5: 1,152,801 km (0.082 R)
• M6: 1,303,745 km (0.097 R)
• M7: 2,745,271 km (0.06 R)
• M8: 4,086,565 km (0.062 R)
• M9: 4,337,740 km (0.054 R)
• M10: 4,519,651 km (0.117 R)
• M11: 4,788,329 km (0.081 R)
• M12: 5,751,141 km (0.093 R)
• M13: 6,460,534 km (0.114 R)
• M14: 8,051,507 km (0.09 R)
• M15: 10,065,842 km (0.11 R)
• M16: 11,482,235 km (0.118 R)
• M17: 11,730,567 km (0.101 R)
• M18: 16,083,417 km (0.096 R)
• M19: 17,810,374 km (0.107 R)
• M20: 22,467,057 km (0.079 R)
• M21: 23,967,524 km (0.086 R)
• M22: 25,786,933 km (0.098 R)
• M23: 30,733,835 km (0.032 R)
• M24: 31,696,348 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 453.6

Radius: 5.1

Gravity: 17.44 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 8.95 AU - 10.37 AU

Year: 20021 Days

Day: 16 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,367,861 km

• M1: 123,867 km (0.082 R)
• M2: 923,916 km (0.097 R)
• M3: 5,673,050 km (0.06 R)
• M4: 5,866,929 km (0.052 R)
• M5: 6,475,194 km (0.041 R)
• M6: 6,687,025 km (0.09 R)
• M7: 7,035,588 km (0.111 R)
• M8: 8,105,362 km (0.062 R)
• M9: 8,962,708 km (0.064 R)
• M10: 17,855,254 km (0.106 R)
• M11: 19,474,352 km (0.117 R)
• M12: 28,940,306 km (0.071 R)
• M13: 29,399,871 km (0.114 R)
• M14: 33,128,000 km (0.083 R)
• M15: 33,884,217 km (0.101 R)
• M16: 36,621,559 km (0.063 R)
• M17: 44,634,619 km (0.084 R)
• M18: 46,648,655 km (0.114 R)
• M19: 51,862,440 km (0.108 R)
• M20: 64,398,592 km (0.063 R)
• M21: 64,789,192 km (0.087 R)
• M22: 66,367,899 km (0.082 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 11,289 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit