🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.9

Radius: 13.5

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.69 AU - 0.95 AU

Year: 479 Days

Day: 8.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 62.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,106,898 km

• M1: 167,849 km (0.112 R)
• M2: 816,356 km (0.118 R)
• M3: 1,243,906 km (0.12 R)
• M4: 1,670,559 km (0.111 R)
• M5: 2,432,761 km (0.073 R)
• M6: 3,137,815 km (0.09 R)
• M7: 4,413,586 km (0.107 R)
• M8: 5,499,068 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.4

Radius: 9.9

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.85 AU - 1.19 AU

Year: 665 Days

Day: 5.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,106,898 km

• M1: 123,269 km (0.058 R)
• M2: 472,131 km (0.114 R)
• M3: 901,178 km (0.083 R)
• M4: 1,555,818 km (0.074 R)
• M5: 2,007,603 km (0.067 R)
• M6: 2,534,487 km (0.104 R)
• M7: 2,867,043 km (0.117 R)
• M8: 3,778,244 km (0.112 R)
• M9: 4,502,148 km (0.089 R)
• M10: 5,028,433 km (0.074 R)
• M11: 6,183,927 km (0.082 R)
• M12: 6,535,632 km (0.099 R)
• M13: 7,932,577 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.4

Radius: 12

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.98 AU - 1.26 AU

Year: 765 Days

Day: 9.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,106,898 km

• M1: 149,299 km (0.092 R)
• M2: 614,249 km (0.107 R)
• M3: 1,007,392 km (0.107 R)
• M4: 1,568,683 km (0.096 R)
• M5: 1,987,707 km (0.069 R)
• M6: 2,559,320 km (0.12 R)
• M7: 2,995,548 km (0.043 R)
• M8: 3,721,995 km (0.099 R)
• M9: 4,479,708 km (0.064 R)
• M10: 5,208,699 km (0.096 R)
• M11: 5,835,813 km (0.094 R)
• M12: 6,239,877 km (0.039 R)
• M13: 7,756,201 km (0.092 R)
• M14: 8,939,520 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.4

Radius: 14.5

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.14 AU - 1.44 AU

Year: 946 Days

Day: 9.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,106,898 km

• M1: 180,265 km (0.117 R)
• M2: 657,483 km (0.099 R)
• M3: 1,251,985 km (0.069 R)
• M4: 1,894,208 km (0.085 R)
• M5: 2,680,794 km (0.059 R)
• M6: 3,238,345 km (0.097 R)
• M7: 3,766,874 km (0.114 R)
• M8: 4,221,203 km (0.111 R)
• M9: 4,694,830 km (0.076 R)
• M10: 6,142,489 km (0.092 R)
• M11: 6,731,007 km (0.051 R)
• M12: 8,304,028 km (0.111 R)
• M13: 8,997,714 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.9

Radius: 10.5

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.45 AU - 1.67 AU

Year: 1258 Days

Day: 9.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,106,898 km

• M1: 131,347 km (0.097 R)
• M2: 524,490 km (0.114 R)
• M3: 881,281 km (0.112 R)
• M4: 1,498,522 km (0.038 R)
• M5: 3,308,656 km (0.117 R)
• M6: 3,967,784 km (0.09 R)
• M7: 5,164,866 km (0.11 R)
• M8: 6,348,485 km (0.045 R)
• M9: 7,178,005 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.3

Radius: 14.2

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.49 AU - 1.67 AU

Year: 1282 Days

Day: 14.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,106,898 km

• M1: 176,525 km (0.097 R)
• M2: 678,127 km (0.063 R)
• M3: 1,129,314 km (0.076 R)
• M4: 1,840,203 km (0.032 R)
• M5: 2,334,475 km (0.106 R)
• M6: 3,095,928 km (0.112 R)
• M7: 3,551,453 km (0.078 R)
• M8: 4,018,348 km (0.117 R)
• M9: 4,471,929 km (0.085 R)
• M10: 4,979,365 km (0.102 R)
• M11: 6,430,913 km (0.059 R)
• M12: 7,255,198 km (0.085 R)
• M13: 8,651,095 km (0.06 R)
• M14: 9,534,321 km (0.108 R)
• M15: 10,187,615 km (0.038 R)
• M16: 11,037,780 km (0.098 R)
• M17: 11,758,542 km (0.026 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.3

Radius: 12.7

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.6 AU - 2.58 AU

Year: 1951 Days

Day: 5.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,106,898 km

• M1: 157,975 km (0.106 R)
• M2: 712,983 km (0.052 R)
• M3: 1,120,338 km (0.092 R)
• M4: 2,138,053 km (0.099 R)
• M5: 2,565,753 km (0.074 R)
• M6: 3,352,039 km (0.108 R)
• M7: 4,056,197 km (0.033 R)
• M8: 4,673,587 km (0.113 R)
• M9: 5,486,502 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.6

Radius: 12.5

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.82 AU - 2.54 AU

Year: 2078 Days

Day: 12.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,106,898 km

• M1: 155,432 km (0.099 R)
• M2: 636,389 km (0.114 R)
• M3: 1,068,129 km (0.092 R)
• M4: 1,773,333 km (0.098 R)
• M5: 2,420,194 km (0.078 R)
• M6: 3,363,858 km (0.037 R)
• M7: 3,840,177 km (0.098 R)
• M8: 4,264,886 km (0.111 R)
• M9: 6,091,924 km (0.056 R)
• M10: 6,594,723 km (0.076 R)
• M11: 8,484,593 km (0.109 R)
• M12: 8,984,848 km (0.068 R)
• M13: 9,907,867 km (0.107 R)
• M14: 10,748,308 km (0.081 R)
• M15: 11,597,725 km (0.09 R)
• M16: 12,611,400 km (0.087 R)
• M17: 14,770,097 km (0.107 R)
• M18: 15,495,497 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 780.7

Radius: 6.4

Gravity: 19.06 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 8.45 AU - 8.95 AU

Year: 16569 Days

Day: 23.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,106,898 km

• M1: 80,633 km (0.083 R)
• M2: 1,109,418 km (0.112 R)
• M3: 1,397,543 km (0.053 R)
• M4: 4,527,879 km (0.117 R)
• M5: 6,589,337 km (0.107 R)
• M6: 7,396,568 km (0.071 R)
• M7: 9,478,521 km (0.092 R)
• M8: 10,270,791 km (0.076 R)
• M9: 11,167,780 km (0.085 R)
• M10: 11,986,380 km (0.118 R)
• M11: 12,377,578 km (0.045 R)
• M12: 14,315,918 km (0.029 R)
• M13: 23,587,994 km (0.12 R)
• M14: 26,435,589 km (0.093 R)
• M15: 30,577,805 km (0.059 R)
• M16: 33,439,163 km (0.047 R)
• M17: 38,690,348 km (0.074 R)
• M18: 50,115,287 km (0.113 R)
• M19: 52,329,934 km (0.087 R)
• M20: 57,688,080 km (0.059 R)
• M21: 61,841,815 km (0.059 R)
• M22: 67,411,194 km (0.06 R)
• M23: 67,615,994 km (0.054 R)
• M24: 69,478,487 km (0.116 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 14,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit