🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 22.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 159.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.4

Radius: 8.4

Gravity: 12.95 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.97 AU - 1.05 AU

Year: 666 Days

Day: 6.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,681,186 km

• M1: 104,419 km (0.1 R)
• M2: 379,829 km (0.036 R)
• M3: 694,583 km (0.108 R)
• M4: 965,355 km (0.058 R)
• M5: 1,357,750 km (0.112 R)
• M6: 1,681,929 km (0.043 R)
• M7: 2,412,864 km (0.1 R)
• M8: 2,808,850 km (0.114 R)
• M9: 3,130,485 km (0.062 R)
• M10: 3,574,342 km (0.084 R)
• M11: 4,912,644 km (0.085 R)
• M12: 5,762,660 km (0.084 R)
• M13: 6,181,833 km (0.119 R)
• M14: 6,664,136 km (0.05 R)
• M15: 7,081,365 km (0.103 R)
• M16: 7,562,621 km (0.07 R)
• M17: 8,114,488 km (0.117 R)
• M18: 8,463,500 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 8.7

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.16 AU - 2.2 AU

Year: 2112 Days

Day: 7.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,681,186 km

• M1: 118,033 km (0.057 R)
• M2: 647,759 km (0.113 R)
• M3: 1,040,603 km (0.057 R)
• M4: 1,912,908 km (0.113 R)
• M5: 2,588,342 km (0.04 R)
• M6: 4,253,067 km (0.031 R)
• M7: 4,802,391 km (0.08 R)
• M8: 6,114,514 km (0.093 R)
• M9: 8,021,288 km (0.102 R)
• M10: 8,644,962 km (0.092 R)
• M11: 9,078,496 km (0.108 R)
• M12: 10,710,759 km (0.118 R)
• M13: 12,530,018 km (0.107 R)
• M14: 13,823,741 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.2

Radius: 10.3

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.04 AU - 4.2 AU

Year: 4518 Days

Day: 13.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,681,186 km

• M1: 128,056 km (0.114 R)
• M2: 498,759 km (0.103 R)
• M3: 1,089,372 km (0.12 R)
• M4: 1,826,141 km (0.064 R)
• M5: 2,450,114 km (0.119 R)
• M6: 2,776,536 km (0.102 R)
• M7: 3,171,176 km (0.095 R)
• M8: 3,603,364 km (0.117 R)
• M9: 4,288,971 km (0.06 R)
• M10: 4,818,996 km (0.071 R)
• M11: 5,307,732 km (0.119 R)
• M12: 7,145,094 km (0.106 R)
• M13: 8,806,677 km (0.115 R)
• M14: 9,290,177 km (0.097 R)
• M15: 9,919,386 km (0.113 R)
• M16: 10,398,698 km (0.055 R)
• M17: 11,450,969 km (0.054 R)
• M18: 16,497,803 km (0.11 R)
• M19: 16,985,791 km (0.099 R)
• M20: 17,862,883 km (0.112 R)
• M21: 20,958,362 km (0.099 R)
• M22: 25,672,939 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.4

Radius: 13.3

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.61 AU - 5.97 AU

Year: 7982 Days

Day: 5.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,681,186 km

• M1: 165,605 km (0.055 R)
• M2: 598,990 km (0.1 R)
• M3: 1,182,721 km (0.091 R)
• M4: 1,905,428 km (0.1 R)
• M5: 2,484,970 km (0.088 R)
• M6: 3,073,787 km (0.061 R)
• M7: 3,828,210 km (0.075 R)
• M8: 5,870,669 km (0.062 R)
• M9: 8,055,397 km (0.047 R)
• M10: 8,818,346 km (0.119 R)
• M11: 10,342,150 km (0.044 R)
• M12: 12,306,818 km (0.079 R)
• M13: 13,728,297 km (0.034 R)
• M14: 15,004,816 km (0.104 R)
• M15: 16,425,397 km (0.1 R)
• M16: 16,895,584 km (0.041 R)
• M17: 17,513,572 km (0.068 R)
• M18: 18,289,088 km (0.038 R)
• M19: 18,867,583 km (0.071 R)
• M20: 20,367,002 km (0.073 R)
• M21: 27,165,627 km (0.12 R)
• M22: 30,464,260 km (0.098 R)
• M23: 30,970,948 km (0.078 R)
• M24: 31,689,766 km (0.103 R)
• M25: 32,105,349 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.9

Radius: 6.3

Gravity: 14.33 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.63 AU - 7.39 AU

Year: 10896 Days

Day: 23.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,681,186 km

• M1: 78,389 km (0.116 R)
• M2: 312,360 km (0.116 R)
• M3: 804,837 km (0.117 R)
• M4: 1,005,447 km (0.12 R)
• M5: 1,713,494 km (0.112 R)
• M6: 1,950,457 km (0.118 R)
• M7: 2,754,396 km (0.114 R)
• M8: 3,361,165 km (0.109 R)
• M9: 4,053,354 km (0.064 R)
• M10: 5,055,211 km (0.036 R)
• M11: 5,378,941 km (0.085 R)
• M12: 5,716,434 km (0.103 R)
• M13: 5,925,721 km (0.088 R)
• M14: 6,471,305 km (0.098 R)
• M15: 6,970,662 km (0.062 R)
• M16: 7,250,111 km (0.074 R)
• M17: 8,443,154 km (0.089 R)
• M18: 10,315,222 km (0.032 R)
• M19: 11,266,066 km (0.096 R)
• M20: 11,595,780 km (0.072 R)
• M21: 14,276,125 km (0.104 R)
• M22: 20,253,158 km (0.078 R)
• M23: 20,495,806 km (0.065 R)
• M24: 21,738,815 km (0.116 R)
• M25: 25,111,199 km (0.091 R)
• M26: 25,863,078 km (0.071 R)
• M27: 29,226,487 km (0.076 R)
• M28: 32,206,626 km (0.085 R)
• M29: 37,532,011 km (0.12 R)
• M30: 38,021,047 km (0.108 R)
• M31: 38,267,135 km (0.065 R)
• M32: 40,530,252 km (0.092 R)
• M33: 43,415,396 km (0.097 R)
• M34: 46,715,974 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788

Radius: 7.5

Gravity: 14.01 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 6.67 AU - 9.41 AU

Year: 14955 Days

Day: 20.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 65,681,186 km

• M1: 93,499 km (0.085 R)
• M2: 421,268 km (0.061 R)
• M3: 944,411 km (0.082 R)
• M4: 1,327,681 km (0.115 R)
• M5: 1,881,941 km (0.079 R)
• M6: 2,537,030 km (0.084 R)
• M7: 3,720,649 km (0.11 R)
• M8: 4,547,775 km (0.113 R)
• M9: 5,680,381 km (0.102 R)
• M10: 6,353,272 km (0.114 R)
• M11: 7,122,504 km (0.096 R)
• M12: 7,529,560 km (0.118 R)
• M13: 8,999,957 km (0.087 R)
• M14: 9,802,700 km (0.11 R)
• M15: 10,193,150 km (0.036 R)
• M16: 13,770,185 km (0.082 R)
• M17: 16,807,770 km (0.102 R)
• M18: 18,439,882 km (0.052 R)
• M19: 19,035,431 km (0.097 R)
• M20: 19,468,517 km (0.072 R)
• M21: 21,921,773 km (0.119 R)
• M22: 22,301,901 km (0.109 R)
• M23: 23,667,281 km (0.041 R)
• M24: 24,067,305 km (0.094 R)
• M25: 26,242,458 km (0.068 R)
• M26: 30,623,432 km (0.115 R)
• M27: 31,218,084 km (0.086 R)
• M28: 31,578,615 km (0.118 R)
• M29: 35,992,350 km (0.08 R)
• M30: 37,867,410 km (0.097 R)
• M31: 39,385,529 km (0.095 R)
• M32: 41,810,810 km (0.116 R)
• M33: 42,837,799 km (0.099 R)
• M34: 47,272,179 km (0.111 R)
• M35: 51,499,665 km (0.109 R)
• M36: 54,049,561 km (0.064 R)
• M37: 54,743,546 km (0.066 R)
• M38: 57,398,908 km (0.099 R)
• M39: 64,313,471 km (0.05 R)
• M40: 65,681,244 km (0.082 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 17,671 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit