🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.5

Radius: 10.5

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.67 AU - 0.75 AU

Year: 380 Days

Day: 14.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,244,677 km

• M1: 130,599 km (0.096 R)
• M2: 464,801 km (0.062 R)
• M3: 851,810 km (0.1 R)
• M4: 1,178,682 km (0.113 R)
• M5: 1,579,006 km (0.098 R)
• M6: 2,813,786 km (0.117 R)
• M7: 3,231,912 km (0.063 R)
• M8: 3,633,134 km (0.111 R)
• M9: 3,992,767 km (0.112 R)
• M10: 4,362,872 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.5

Radius: 8.9

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.64 AU - 0.92 AU

Year: 438 Days

Day: 8 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,244,677 km

• M1: 110,702 km (0.093 R)
• M2: 441,015 km (0.099 R)
• M3: 907,461 km (0.105 R)
• M4: 1,625,231 km (0.116 R)
• M5: 2,063,852 km (0.112 R)
• M6: 3,284,272 km (0.099 R)
• M7: 3,562,224 km (0.108 R)
• M8: 3,935,471 km (0.117 R)
• M9: 4,249,926 km (0.118 R)
• M10: 4,551,515 km (0.108 R)
• M11: 4,944,958 km (0.077 R)
• M12: 5,377,445 km (0.089 R)
• M13: 5,904,927 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.8

Radius: 14

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.02 AU - 2.74 AU

Year: 2335 Days

Day: 8.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,244,677 km

• M1: 174,132 km (0.086 R)
• M2: 651,948 km (0.066 R)
• M3: 1,376,600 km (0.09 R)
• M4: 1,884,933 km (0.06 R)
• M5: 2,519,527 km (0.064 R)
• M6: 3,005,720 km (0.05 R)
• M7: 3,665,896 km (0.089 R)
• M8: 6,480,430 km (0.106 R)
• M9: 7,456,107 km (0.118 R)
• M10: 8,384,661 km (0.081 R)
• M11: 9,825,139 km (0.095 R)
• M12: 11,009,655 km (0.111 R)
• M13: 11,743,582 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606

Radius: 13.4

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.33 AU - 2.69 AU

Year: 2528 Days

Day: 10 Hours

Environment

Temp: -191 °C

Axial Tilt: 169.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,244,677 km

• M1: 166,652 km (0.082 R)
• M2: 611,257 km (0.092 R)
• M3: 1,151,305 km (0.116 R)
• M4: 1,586,037 km (0.088 R)
• M5: 2,715,501 km (0.117 R)
• M6: 3,578,830 km (0.062 R)
• M7: 4,144,310 km (0.026 R)
• M8: 5,625,628 km (0.093 R)
• M9: 7,000,133 km (0.057 R)
• M10: 7,705,487 km (0.068 R)
• M11: 9,189,947 km (0.07 R)
• M12: 9,963,966 km (0.047 R)
• M13: 11,363,454 km (0.034 R)
• M14: 12,890,250 km (0.067 R)
• M15: 14,926,576 km (0.08 R)
• M16: 16,096,581 km (0.096 R)
• M17: 18,072,620 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.3

Radius: 12.3

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.83 AU - 6.29 AU

Year: 7237 Days

Day: 5.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,244,677 km

• M1: 154,086 km (0.073 R)
• M2: 617,690 km (0.032 R)
• M3: 1,190,201 km (0.039 R)
• M4: 2,163,933 km (0.117 R)
• M5: 2,725,673 km (0.047 R)
• M6: 3,146,492 km (0.044 R)
• M7: 4,074,896 km (0.12 R)
• M8: 4,628,708 km (0.114 R)
• M9: 5,799,311 km (0.085 R)
• M10: 6,189,612 km (0.114 R)
• M11: 6,694,206 km (0.102 R)
• M12: 8,450,485 km (0.081 R)
• M13: 9,192,490 km (0.105 R)
• M14: 9,977,580 km (0.049 R)
• M15: 10,896,709 km (0.091 R)
• M16: 12,853,000 km (0.083 R)
• M17: 13,363,578 km (0.103 R)
• M18: 14,977,290 km (0.05 R)
• M19: 16,240,794 km (0.071 R)
• M20: 17,698,774 km (0.113 R)
• M21: 19,574,881 km (0.105 R)
• M22: 21,084,025 km (0.108 R)
• M23: 21,795,063 km (0.096 R)
• M24: 27,732,453 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.4

Radius: 7.6

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.44 AU - 9.44 AU

Year: 14225 Days

Day: 19.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,244,677 km

• M1: 94,695 km (0.064 R)
• M2: 366,664 km (0.072 R)
• M3: 991,684 km (0.058 R)
• M4: 1,473,838 km (0.077 R)
• M5: 2,196,097 km (0.112 R)
• M6: 2,636,513 km (0.067 R)
• M7: 3,256,147 km (0.104 R)
• M8: 4,199,212 km (0.075 R)
• M9: 4,654,887 km (0.063 R)
• M10: 7,750,666 km (0.097 R)
• M11: 8,915,883 km (0.054 R)
• M12: 10,193,599 km (0.106 R)
• M13: 12,121,616 km (0.113 R)
• M14: 12,546,773 km (0.116 R)
• M15: 13,491,334 km (0.098 R)
• M16: 13,947,907 km (0.064 R)
• M17: 14,550,188 km (0.104 R)
• M18: 15,521,228 km (0.091 R)
• M19: 16,608,954 km (0.086 R)
• M20: 17,902,228 km (0.108 R)
• M21: 18,854,568 km (0.087 R)
• M22: 20,260,937 km (0.092 R)
• M23: 22,454,341 km (0.061 R)
• M24: 23,003,365 km (0.087 R)
• M25: 25,983,804 km (0.077 R)
• M26: 26,792,829 km (0.111 R)
• M27: 27,410,519 km (0.076 R)
• M28: 32,233,554 km (0.083 R)
• M29: 45,818,537 km (0.105 R)
• M30: 46,406,007 km (0.095 R)
• M31: 52,880,753 km (0.083 R)
• M32: 54,178,814 km (0.073 R)
• M33: 55,166,010 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 649.7

Radius: 5.7

Gravity: 20 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 7.65 AU - 9.21 AU

Year: 15562 Days

Day: 19.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,244,677 km

• M1: 70,909 km (0.072 R)
• M2: 310,715 km (0.118 R)
• M3: 716,424 km (0.062 R)
• M4: 1,069,924 km (0.089 R)
• M5: 1,472,641 km (0.067 R)
• M6: 2,488,710 km (0.112 R)
• M7: 2,756,341 km (0.067 R)
• M8: 5,093,658 km (0.073 R)
• M9: 5,270,931 km (0.072 R)
• M10: 7,779,538 km (0.112 R)
• M11: 12,143,607 km (0.104 R)
• M12: 13,512,727 km (0.046 R)
• M13: 15,792,150 km (0.035 R)
• M14: 21,005,037 km (0.11 R)
• M15: 23,552,240 km (0.047 R)
• M16: 24,849,104 km (0.083 R)
• M17: 30,864,584 km (0.098 R)
• M18: 34,269,581 km (0.078 R)
• M19: 34,521,953 km (0.055 R)
• M20: 46,432,337 km (0.097 R)
• M21: 46,896,389 km (0.12 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 10,866 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit