🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.42 AU - 0.66 AU

Year: 260 Days

Day: 35.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.9

Radius: 13.1

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.66 AU - 0.82 AU

Year: 418 Days

Day: 9.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,664,866 km

• M1: 163,510 km (0.109 R)
• M2: 702,811 km (0.109 R)
• M3: 1,126,472 km (0.077 R)
• M4: 1,567,187 km (0.071 R)
• M5: 2,018,374 km (0.08 R)
• M6: 2,452,507 km (0.105 R)
• M7: 2,929,874 km (0.077 R)
• M8: 4,124,264 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.5

Radius: 14.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.05 AU - 1.13 AU

Year: 747 Days

Day: 14.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,664,866 km

• M1: 180,415 km (0.11 R)
• M2: 825,032 km (0.114 R)
• M3: 1,617,003 km (0.065 R)
• M4: 2,173,956 km (0.066 R)
• M5: 2,695,006 km (0.09 R)
• M6: 3,461,096 km (0.111 R)
• M7: 4,070,259 km (0.111 R)
• M8: 4,615,394 km (0.088 R)
• M9: 5,356,053 km (0.107 R)
• M10: 7,075,979 km (0.043 R)
• M11: 7,892,335 km (0.08 R)
• M12: 8,386,606 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.4

Radius: 10.4

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.51 AU - 2.99 AU

Year: 2992 Days

Day: 5.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,664,866 km

• M1: 130,449 km (0.066 R)
• M2: 480,060 km (0.097 R)
• M3: 918,232 km (0.115 R)
• M4: 1,327,681 km (0.117 R)
• M5: 1,761,216 km (0.062 R)
• M6: 2,119,802 km (0.063 R)
• M7: 6,294,330 km (0.116 R)
• M8: 7,048,902 km (0.114 R)
• M9: 7,964,591 km (0.097 R)
• M10: 8,665,905 km (0.052 R)
• M11: 11,755,401 km (0.063 R)
• M12: 12,113,538 km (0.098 R)
• M13: 13,280,102 km (0.075 R)
• M14: 13,619,689 km (0.12 R)
• M15: 14,265,952 km (0.082 R)
• M16: 21,496,167 km (0.101 R)
• M17: 22,784,653 km (0.075 R)
• M18: 23,412,665 km (0.088 R)
• M19: 23,980,539 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.6

Radius: 13.2

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.38 AU - 4.6 AU

Year: 5228 Days

Day: 5.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,664,866 km

• M1: 164,707 km (0.096 R)
• M2: 762,351 km (0.065 R)
• M3: 1,499,120 km (0.113 R)
• M4: 2,122,345 km (0.096 R)
• M5: 2,538,377 km (0.087 R)
• M6: 3,517,794 km (0.069 R)
• M7: 3,988,728 km (0.055 R)
• M8: 4,788,029 km (0.088 R)
• M9: 5,368,918 km (0.116 R)
• M10: 6,089,980 km (0.084 R)
• M11: 6,506,909 km (0.109 R)
• M12: 9,341,340 km (0.062 R)
• M13: 10,251,194 km (0.088 R)
• M14: 11,750,165 km (0.079 R)
• M15: 12,247,428 km (0.068 R)
• M16: 12,914,635 km (0.114 R)
• M17: 13,390,805 km (0.09 R)
• M18: 14,099,300 km (0.1 R)
• M19: 14,832,479 km (0.092 R)
• M20: 15,296,233 km (0.095 R)
• M21: 17,568,774 km (0.101 R)
• M22: 18,418,191 km (0.078 R)
• M23: 19,500,980 km (0.084 R)
• M24: 19,917,760 km (0.102 R)
• M25: 26,144,173 km (0.086 R)
• M26: 30,017,561 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.8

Radius: 10.7

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.57 AU - 4.85 AU

Year: 5667 Days

Day: 6.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 144.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,664,866 km

• M1: 133,441 km (0.059 R)
• M2: 497,563 km (0.039 R)
• M3: 1,319,154 km (0.085 R)
• M4: 1,764,058 km (0.075 R)
• M5: 2,426,926 km (0.04 R)
• M6: 5,490,242 km (0.09 R)
• M7: 7,841,023 km (0.032 R)
• M8: 9,544,195 km (0.064 R)
• M9: 10,136,303 km (0.03 R)
• M10: 10,879,056 km (0.115 R)
• M11: 11,970,373 km (0.045 R)
• M12: 13,471,887 km (0.082 R)
• M13: 15,466,924 km (0.091 R)
• M14: 15,954,015 km (0.103 R)
• M15: 16,901,867 km (0.114 R)
• M16: 20,678,914 km (0.081 R)
• M17: 21,737,917 km (0.064 R)
• M18: 24,252,657 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.3

Radius: 8.7

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.33 AU - 5.29 AU

Year: 5870 Days

Day: 6.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,664,866 km

• M1: 108,309 km (0.072 R)
• M2: 431,889 km (0.102 R)
• M3: 889,659 km (0.08 R)
• M4: 1,520,962 km (0.114 R)
• M5: 1,905,727 km (0.071 R)
• M6: 2,641,749 km (0.09 R)
• M7: 3,244,329 km (0.052 R)
• M8: 3,742,191 km (0.118 R)
• M9: 5,034,567 km (0.047 R)
• M10: 7,402,402 km (0.1 R)
• M11: 8,388,701 km (0.109 R)
• M12: 8,764,341 km (0.095 R)
• M13: 9,775,622 km (0.109 R)
• M14: 10,051,930 km (0.101 R)
• M15: 10,333,323 km (0.081 R)
• M16: 12,239,649 km (0.093 R)
• M17: 17,130,751 km (0.114 R)
• M18: 18,216,982 km (0.095 R)
• M19: 23,761,079 km (0.066 R)
• M20: 24,345,408 km (0.065 R)
• M21: 24,768,620 km (0.114 R)
• M22: 25,892,100 km (0.049 R)
• M23: 27,320,910 km (0.114 R)
• M24: 28,054,687 km (0.103 R)
• M25: 28,895,726 km (0.099 R)
• M26: 35,368,826 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.3

Radius: 3.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 5.57 AU - 6.97 AU

Year: 10299 Days

Day: 23.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 99.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,664,866 km

• M1: 44,730 km (0.111 R)
• M2: 220,058 km (0.098 R)
• M3: 870,660 km (0.111 R)
• M4: 1,395,150 km (0.072 R)
• M5: 1,666,520 km (0.087 R)
• M6: 2,037,673 km (0.105 R)
• M7: 2,431,414 km (0.088 R)
• M8: 2,694,108 km (0.112 R)
• M9: 2,807,653 km (0.115 R)
• M10: 3,499,842 km (0.108 R)
• M11: 4,499,605 km (0.095 R)
• M12: 4,636,636 km (0.069 R)
• M13: 5,971,349 km (0.095 R)
• M14: 6,334,123 km (0.032 R)
• M15: 8,166,997 km (0.095 R)
• M16: 9,004,146 km (0.082 R)
• M17: 9,480,765 km (0.114 R)
• M18: 15,987,674 km (0.048 R)
• M19: 17,855,104 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.3

Radius: 6.8

Gravity: 14.37 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.58 AU - 8.4 AU

Year: 12123 Days

Day: 17.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 67,664,866 km

• M1: 84,972 km (0.11 R)
• M2: 339,886 km (0.054 R)
• M3: 634,893 km (0.073 R)
• M4: 857,345 km (0.118 R)
• M5: 1,144,723 km (0.092 R)
• M6: 1,568,085 km (0.09 R)
• M7: 1,866,084 km (0.089 R)
• M8: 2,768,757 km (0.027 R)
• M9: 4,396,681 km (0.042 R)
• M10: 4,798,800 km (0.032 R)
• M11: 5,124,475 km (0.105 R)
• M12: 5,395,696 km (0.102 R)
• M13: 6,003,811 km (0.084 R)
• M14: 7,570,550 km (0.038 R)
• M15: 9,442,169 km (0.102 R)
• M16: 11,893,480 km (0.047 R)
• M17: 12,612,746 km (0.032 R)
• M18: 13,107,915 km (0.104 R)
• M19: 13,551,922 km (0.083 R)
• M20: 14,807,496 km (0.068 R)
• M21: 16,501,992 km (0.104 R)
• M22: 16,870,601 km (0.069 R)
• M23: 18,009,639 km (0.099 R)
• M24: 19,937,207 km (0.112 R)
• M25: 21,733,130 km (0.088 R)
• M26: 22,176,089 km (0.095 R)
• M27: 25,447,495 km (0.073 R)
• M28: 27,764,018 km (0.057 R)
• M29: 37,543,979 km (0.109 R)
• M30: 40,671,323 km (0.108 R)
• M31: 42,298,200 km (0.113 R)
• M32: 47,438,532 km (0.069 R)
• M33: 47,735,783 km (0.074 R)
• M34: 53,621,262 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.3

Radius: 6.1

Gravity: 19.73 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.59 AU - 10.37 AU

Year: 16200 Days

Day: 18 Hours

Environment

Temp: -222 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,664,866 km

• M1: 76,744 km (0.097 R)
• M2: 747,541 km (0.085 R)
• M3: 1,057,657 km (0.093 R)
• M4: 1,305,391 km (0.061 R)
• M5: 1,656,946 km (0.119 R)
• M6: 1,846,636 km (0.108 R)
• M7: 2,108,881 km (0.048 R)
• M8: 2,875,570 km (0.052 R)
• M9: 4,532,666 km (0.108 R)
• M10: 4,837,098 km (0.072 R)
• M11: 7,138,062 km (0.094 R)
• M12: 8,373,292 km (0.085 R)
• M13: 12,396,278 km (0.075 R)
• M14: 13,400,229 km (0.058 R)
• M15: 14,748,256 km (0.077 R)
• M16: 18,212,494 km (0.082 R)
• M17: 21,705,305 km (0.111 R)
• M18: 29,164,105 km (0.109 R)
• M19: 41,000,737 km (0.074 R)
• M20: 41,437,563 km (0.113 R)
• M21: 44,430,119 km (0.081 R)
• M22: 48,207,465 km (0.104 R)
• M23: 51,008,984 km (0.114 R)
• M24: 59,687,606 km (0.102 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: 304 - 14,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit