🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.1

Radius: 11

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.61 AU - 0.89 AU

Year: 448 Days

Day: 5.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,092,313 km

• M1: 136,882 km (0.098 R)
• M2: 514,916 km (0.116 R)
• M3: 930,798 km (0.089 R)
• M4: 1,274,275 km (0.114 R)
• M5: 1,747,453 km (0.059 R)
• M6: 2,535,834 km (0.066 R)
• M7: 2,990,761 km (0.107 R)
• M8: 3,430,130 km (0.074 R)
• M9: 4,263,539 km (0.097 R)
• M10: 4,866,269 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.2

Radius: 13.8

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.68 AU - 0.94 AU

Year: 503 Days

Day: 8.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 73,092,313 km

• M1: 171,589 km (0.093 R)
• M2: 1,336,657 km (0.105 R)
• M3: 1,967,362 km (0.092 R)
• M4: 2,439,044 km (0.052 R)
• M5: 3,190,623 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.8

Radius: 14.6

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.86 AU - 0.9 AU

Year: 570 Days

Day: 8.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,092,313 km

• M1: 182,210 km (0.08 R)
• M2: 764,296 km (0.026 R)
• M3: 1,367,773 km (0.112 R)
• M4: 2,160,642 km (0.116 R)
• M5: 2,625,293 km (0.039 R)
• M6: 3,335,584 km (0.099 R)
• M7: 4,251,871 km (0.111 R)
• M8: 5,346,030 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.5

Radius: 8.9

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.56 AU - 1.76 AU

Year: 1476 Days

Day: 7.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,092,313 km

• M1: 111,450 km (0.063 R)
• M2: 396,734 km (0.088 R)
• M3: 673,938 km (0.116 R)
• M4: 961,914 km (0.082 R)
• M5: 1,581,698 km (0.075 R)
• M6: 2,306,350 km (0.062 R)
• M7: 2,680,345 km (0.072 R)
• M8: 3,251,510 km (0.086 R)
• M9: 3,803,675 km (0.104 R)
• M10: 4,310,363 km (0.077 R)
• M11: 4,598,788 km (0.034 R)
• M12: 5,295,017 km (0.115 R)
• M13: 6,538,773 km (0.1 R)
• M14: 8,375,386 km (0.063 R)
• M15: 9,322,640 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.7

Radius: 13.2

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.62 AU - 2.3 AU

Year: 1894 Days

Day: 9.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,092,313 km

• M1: 170,841 km (0.059 R)
• M2: 592,707 km (0.08 R)
• M3: 1,034,170 km (0.112 R)
• M4: 1,536,669 km (0.106 R)
• M5: 4,635,140 km (0.109 R)
• M6: 6,132,017 km (0.073 R)
• M7: 7,423,346 km (0.035 R)
• M8: 9,690,202 km (0.116 R)
• M9: 11,962,295 km (0.114 R)
• M10: 14,138,944 km (0.043 R)
• M11: 14,569,486 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.2

Radius: 11.3

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.71 AU - 4.05 AU

Year: 4289 Days

Day: 8.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,092,313 km

• M1: 140,472 km (0.105 R)
• M2: 502,050 km (0.057 R)
• M3: 862,881 km (0.06 R)
• M4: 1,471,295 km (0.081 R)
• M5: 2,088,835 km (0.096 R)
• M6: 2,701,738 km (0.113 R)
• M7: 3,951,329 km (0.093 R)
• M8: 4,595,347 km (0.047 R)
• M9: 5,097,398 km (0.07 R)
• M10: 6,005,756 km (0.084 R)
• M11: 7,181,745 km (0.081 R)
• M12: 7,859,423 km (0.101 R)
• M13: 8,690,888 km (0.081 R)
• M14: 9,660,283 km (0.063 R)
• M15: 10,275,579 km (0.118 R)
• M16: 10,916,755 km (0.118 R)
• M17: 12,138,222 km (0.057 R)
• M18: 12,661,216 km (0.116 R)
• M19: 14,851,179 km (0.085 R)
• M20: 16,291,657 km (0.101 R)
• M21: 16,753,017 km (0.107 R)
• M22: 18,251,539 km (0.056 R)
• M23: 18,686,719 km (0.057 R)
• M24: 21,720,713 km (0.053 R)
• M25: 22,280,060 km (0.078 R)
• M26: 22,634,457 km (0.062 R)
• M27: 24,388,342 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305.4

Radius: 4

Gravity: 19.09 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 7.14 AU - 8.2 AU

Year: 14662 Days

Day: 24.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,092,313 km

• M1: 49,816 km (0.066 R)
• M2: 222,153 km (0.097 R)
• M3: 3,279,784 km (0.106 R)
• M4: 4,351,802 km (0.118 R)
• M5: 5,638,045 km (0.069 R)
• M6: 6,498,232 km (0.12 R)
• M7: 9,598,648 km (0.109 R)
• M8: 9,795,220 km (0.109 R)
• M9: 11,301,371 km (0.104 R)
• M10: 12,718,063 km (0.079 R)
• M11: 14,059,058 km (0.055 R)
• M12: 15,290,698 km (0.1 R)
• M13: 16,382,164 km (0.037 R)
• M14: 16,522,187 km (0.114 R)
• M15: 17,966,255 km (0.098 R)
• M16: 21,185,751 km (0.07 R)
• M17: 22,713,146 km (0.085 R)
• M18: 29,454,175 km (0.115 R)
• M19: 33,782,490 km (0.114 R)
• M20: 35,508,999 km (0.081 R)
• M21: 37,901,518 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 646.2

Radius: 7.8

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 9.2 AU - 9.28 AU

Year: 19387 Days

Day: 16.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,092,313 km

• M1: 97,239 km (0.055 R)
• M2: 407,355 km (0.098 R)
• M3: 782,696 km (0.111 R)
• M4: 1,196,933 km (0.083 R)
• M5: 1,648,419 km (0.12 R)
• M6: 2,422,289 km (0.078 R)
• M7: 5,661,083 km (0.118 R)
• M8: 6,314,975 km (0.074 R)
• M9: 7,969,527 km (0.036 R)
• M10: 10,479,630 km (0.118 R)
• M11: 11,025,961 km (0.091 R)
• M12: 11,400,704 km (0.066 R)
• M13: 12,779,249 km (0.109 R)
• M14: 16,022,231 km (0.096 R)
• M15: 54,561,934 km (0.088 R)
• M16: 61,502,976 km (0.11 R)
• M17: 63,674,688 km (0.068 R)
• M18: 65,285,857 km (0.076 R)
• M19: 71,139,173 km (0.102 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 17,301 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit