🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.1

Radius: 8.5

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.52 AU - 0.72 AU

Year: 331 Days

Day: 14.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 142.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 67,149,802 km

• M1: 105,766 km (0.116 R)
• M2: 514,617 km (0.046 R)
• M3: 900,878 km (0.076 R)
• M4: 2,424,233 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.6

Radius: 12.3

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.55 AU - 0.71 AU

Year: 339 Days

Day: 9.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,149,802 km

• M1: 153,039 km (0.025 R)
• M2: 574,905 km (0.113 R)
• M3: 957,875 km (0.073 R)
• M4: 1,439,730 km (0.11 R)
• M5: 1,936,395 km (0.075 R)
• M6: 2,960,691 km (0.073 R)
• M7: 3,798,140 km (0.071 R)
• M8: 4,217,014 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.9

Radius: 12.8

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.68 AU - 0.82 AU

Year: 441 Days

Day: 7.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,149,802 km

• M1: 163,959 km (0.108 R)
• M2: 582,385 km (0.104 R)
• M3: 989,291 km (0.095 R)
• M4: 1,551,180 km (0.066 R)
• M5: 1,997,730 km (0.088 R)
• M6: 2,484,521 km (0.093 R)
• M7: 3,381,809 km (0.094 R)
• M8: 4,171,985 km (0.061 R)
• M9: 4,827,822 km (0.051 R)
• M10: 5,281,852 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.1

Radius: 14.7

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.4 AU - 3.5 AU

Year: 3437 Days

Day: 10.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,149,802 km

• M1: 229,633 km (0.099 R)
• M2: 755,768 km (0.102 R)
• M3: 1,643,931 km (0.102 R)
• M4: 2,557,076 km (0.102 R)
• M5: 5,316,559 km (0.11 R)
• M6: 5,859,449 km (0.094 R)
• M7: 7,568,455 km (0.106 R)
• M8: 8,134,683 km (0.098 R)
• M9: 8,665,457 km (0.08 R)
• M10: 9,970,848 km (0.118 R)
• M11: 11,990,120 km (0.116 R)
• M12: 13,652,900 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.2

Radius: 13

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.51 AU - 4.97 AU

Year: 5922 Days

Day: 13 Hours

Environment

Temp: -216 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,149,802 km

• M1: 213,775 km (0.1 R)
• M2: 807,978 km (0.112 R)
• M3: 1,280,558 km (0.058 R)
• M4: 1,883,587 km (0.063 R)
• M5: 2,915,363 km (0.115 R)
• M6: 3,362,212 km (0.084 R)
• M7: 3,925,747 km (0.082 R)
• M8: 5,390,610 km (0.12 R)
• M9: 6,037,172 km (0.099 R)
• M10: 6,631,973 km (0.114 R)
• M11: 8,094,591 km (0.118 R)
• M12: 10,076,763 km (0.107 R)
• M13: 11,011,600 km (0.093 R)
• M14: 12,732,424 km (0.087 R)
• M15: 16,637,527 km (0.091 R)
• M16: 17,086,919 km (0.112 R)
• M17: 18,689,262 km (0.114 R)
• M18: 20,756,705 km (0.089 R)
• M19: 24,015,096 km (0.079 R)
• M20: 25,173,133 km (0.04 R)
• M21: 29,055,347 km (0.11 R)
• M22: 30,561,050 km (0.102 R)
• M23: 31,723,874 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.2

Radius: 10.5

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.72 AU - 4.76 AU

Year: 6999 Days

Day: 6 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,149,802 km

• M1: 140,772 km (0.081 R)
• M2: 553,811 km (0.075 R)
• M3: 1,201,121 km (0.109 R)
• M4: 2,049,491 km (0.105 R)
• M5: 2,741,979 km (0.087 R)
• M6: 3,472,765 km (0.102 R)
• M7: 4,751,528 km (0.073 R)
• M8: 5,172,945 km (0.084 R)
• M9: 9,414,044 km (0.095 R)
• M10: 12,117,278 km (0.097 R)
• M11: 14,529,992 km (0.078 R)
• M12: 17,841,192 km (0.07 R)
• M13: 20,873,241 km (0.08 R)
• M14: 22,785,700 km (0.101 R)
• M15: 25,826,277 km (0.106 R)
• M16: 27,757,137 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.3

Radius: 14

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.42 AU - 5.64 AU

Year: 7651 Days

Day: 14.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,149,802 km

• M1: 174,880 km (0.11 R)
• M2: 647,908 km (0.118 R)
• M3: 1,084,884 km (0.099 R)
• M4: 1,649,317 km (0.104 R)
• M5: 2,153,910 km (0.108 R)
• M6: 3,347,552 km (0.111 R)
• M7: 3,914,827 km (0.111 R)
• M8: 5,003,600 km (0.056 R)
• M9: 6,320,061 km (0.056 R)
• M10: 9,491,536 km (0.052 R)
• M11: 13,895,249 km (0.104 R)
• M12: 16,208,780 km (0.076 R)
• M13: 17,630,857 km (0.107 R)
• M14: 19,729,416 km (0.061 R)
• M15: 20,336,484 km (0.107 R)
• M16: 22,973,595 km (0.049 R)
• M17: 26,375,152 km (0.119 R)
• M18: 32,663,049 km (0.113 R)
• M19: 40,004,565 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 85.2

Radius: 5.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.66 AU - 6.88 AU

Year: 10649 Days

Day: 19.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,149,802 km

• M1: 73,752 km (0.052 R)
• M2: 981,362 km (0.115 R)
• M3: 1,183,918 km (0.101 R)
• M4: 2,007,903 km (0.102 R)
• M5: 2,670,472 km (0.087 R)
• M6: 3,274,997 km (0.084 R)
• M7: 3,754,009 km (0.071 R)
• M8: 8,714,824 km (0.042 R)
• M9: 9,318,451 km (0.092 R)
• M10: 10,949,367 km (0.103 R)
• M11: 24,505,328 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 550.5

Radius: 4.8

Gravity: 23.89 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 7.96 AU - 10.16 AU

Year: 18496 Days

Day: 18 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 67,149,802 km

• M1: 66,721 km (0.108 R)
• M2: 221,106 km (0.072 R)
• M3: 975,528 km (0.115 R)
• M4: 1,133,353 km (0.086 R)
• M5: 1,532,481 km (0.11 R)
• M6: 1,889,272 km (0.093 R)
• M7: 3,513,456 km (0.108 R)
• M8: 4,100,926 km (0.084 R)
• M9: 5,137,490 km (0.072 R)
• M10: 5,393,901 km (0.115 R)
• M11: 6,011,740 km (0.063 R)
• M12: 6,632,721 km (0.103 R)
• M13: 8,751,475 km (0.103 R)
• M14: 20,692,976 km (0.029 R)
• M15: 20,876,981 km (0.099 R)
• M16: 25,626,265 km (0.104 R)
• M17: 30,688,507 km (0.096 R)
• M18: 33,012,211 km (0.082 R)
• M19: 34,281,250 km (0.043 R)
• M20: 35,057,962 km (0.106 R)
• M21: 37,458,559 km (0.075 R)
• M22: 43,331,023 km (0.109 R)
• M23: 44,391,223 km (0.103 R)
• M24: 48,157,799 km (0.08 R)
• M25: 48,968,320 km (0.093 R)
• M26: 51,623,532 km (0.07 R)
• M27: 56,677,547 km (0.111 R)
• M28: 59,974,983 km (0.065 R)
• M29: 64,763,461 km (0.091 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: 543 - 19,967 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit