🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.8

Radius: 10.8

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.53 AU - 0.67 AU

Year: 310 Days

Day: 9.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,484,751 km

• M1: 134,488 km (0.045 R)
• M2: 554,111 km (0.085 R)
• M3: 904,020 km (0.115 R)
• M4: 1,244,355 km (0.077 R)
• M5: 1,588,729 km (0.118 R)
• M6: 1,956,740 km (0.116 R)
• M7: 2,397,605 km (0.04 R)
• M8: 2,841,911 km (0.076 R)
• M9: 3,380,613 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.2

Radius: 8.6

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.1 AU - 3.44 AU

Year: 3943 Days

Day: 12.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,484,751 km

• M1: 111,750 km (0.109 R)
• M2: 410,048 km (0.103 R)
• M3: 1,072,467 km (0.089 R)
• M4: 1,933,552 km (0.119 R)
• M5: 2,246,062 km (0.118 R)
• M6: 2,622,750 km (0.096 R)
• M7: 2,940,945 km (0.073 R)
• M8: 3,231,464 km (0.11 R)
• M9: 3,971,823 km (0.105 R)
• M10: 4,306,474 km (0.09 R)
• M11: 5,680,830 km (0.049 R)
• M12: 5,998,276 km (0.088 R)
• M13: 6,582,456 km (0.072 R)
• M14: 8,059,735 km (0.119 R)
• M15: 8,632,396 km (0.107 R)
• M16: 10,791,990 km (0.062 R)
• M17: 11,197,700 km (0.099 R)
• M18: 13,473,682 km (0.051 R)
• M19: 14,135,652 km (0.088 R)
• M20: 15,575,532 km (0.067 R)
• M21: 18,570,631 km (0.059 R)
• M22: 19,153,614 km (0.092 R)
• M23: 19,688,725 km (0.037 R)
• M24: 20,851,101 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.4

Radius: 13.3

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.86 AU - 4.98 AU

Year: 6197 Days

Day: 8.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 84.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,484,751 km

• M1: 203,304 km (0.075 R)
• M2: 745,446 km (0.112 R)
• M3: 1,196,185 km (0.118 R)
• M4: 5,530,035 km (0.067 R)
• M5: 6,353,272 km (0.091 R)
• M6: 7,851,794 km (0.119 R)
• M7: 8,377,930 km (0.061 R)
• M8: 9,068,623 km (0.111 R)
• M9: 9,871,963 km (0.088 R)
• M10: 11,579,025 km (0.083 R)
• M11: 12,881,424 km (0.113 R)
• M12: 17,430,097 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.6

Radius: 8.7

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.43 AU - 5.95 AU

Year: 7885 Days

Day: 10.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,484,751 km

• M1: 109,057 km (0.084 R)
• M2: 684,560 km (0.111 R)
• M3: 1,247,796 km (0.111 R)
• M4: 1,659,190 km (0.09 R)
• M5: 3,213,362 km (0.104 R)
• M6: 4,605,969 km (0.098 R)
• M7: 4,921,022 km (0.112 R)
• M8: 7,985,684 km (0.08 R)
• M9: 11,292,246 km (0.081 R)
• M10: 13,245,844 km (0.109 R)
• M11: 14,975,495 km (0.099 R)
• M12: 18,804,901 km (0.097 R)
• M13: 19,537,931 km (0.107 R)
• M14: 20,596,186 km (0.093 R)
• M15: 21,533,267 km (0.082 R)
• M16: 22,744,262 km (0.115 R)
• M17: 23,492,251 km (0.085 R)
• M18: 25,301,189 km (0.08 R)
• M19: 32,208,122 km (0.11 R)
• M20: 35,755,686 km (0.11 R)
• M21: 36,090,636 km (0.032 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.6

Radius: 4.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7.18 AU - 7.22 AU

Year: 12883 Days

Day: 19.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,484,751 km

• M1: 53,556 km (0.081 R)
• M2: 1,147,116 km (0.054 R)
• M3: 2,159,744 km (0.112 R)
• M4: 3,155,917 km (0.104 R)
• M5: 5,077,501 km (0.114 R)
• M6: 10,088,282 km (0.062 R)
• M7: 16,022,381 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 427.3

Radius: 7.3

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.2 AU - 8.74 AU

Year: 13615 Days

Day: 21.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,484,751 km

• M1: 90,806 km (0.093 R)
• M2: 355,295 km (0.105 R)
• M3: 701,764 km (0.115 R)
• M4: 1,004,400 km (0.106 R)
• M5: 1,543,850 km (0.097 R)
• M6: 2,243,968 km (0.103 R)
• M7: 2,934,362 km (0.041 R)
• M8: 3,758,497 km (0.1 R)
• M9: 4,224,494 km (0.074 R)
• M10: 5,541,105 km (0.1 R)
• M11: 8,131,093 km (0.081 R)
• M12: 8,400,519 km (0.065 R)
• M13: 8,629,703 km (0.079 R)
• M14: 10,042,056 km (0.092 R)
• M15: 11,377,816 km (0.066 R)
• M16: 11,658,611 km (0.112 R)
• M17: 11,886,598 km (0.063 R)
• M18: 12,233,964 km (0.071 R)
• M19: 12,949,341 km (0.108 R)
• M20: 14,332,673 km (0.114 R)
• M21: 16,161,656 km (0.115 R)
• M22: 17,315,954 km (0.086 R)
• M23: 17,837,901 km (0.072 R)
• M24: 21,703,659 km (0.081 R)
• M25: 23,467,119 km (0.089 R)
• M26: 26,190,698 km (0.103 R)
• M27: 29,222,598 km (0.114 R)
• M28: 33,503,640 km (0.041 R)
• M29: 34,313,862 km (0.095 R)
• M30: 38,561,843 km (0.077 R)
• M31: 43,693,648 km (0.088 R)
• M32: 44,382,846 km (0.102 R)
• M33: 47,212,190 km (0.055 R)
• M34: 49,114,327 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625.9

Radius: 7.5

Gravity: 11.13 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 8.07 AU - 8.53 AU

Year: 15946 Days

Day: 24.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,484,751 km

• M1: 93,199 km (0.11 R)
• M2: 438,920 km (0.079 R)
• M3: 815,308 km (0.073 R)
• M4: 1,132,007 km (0.101 R)
• M5: 2,953,361 km (0.104 R)
• M6: 3,824,769 km (0.108 R)
• M7: 4,242,296 km (0.112 R)
• M8: 7,147,786 km (0.062 R)
• M9: 7,597,029 km (0.109 R)
• M10: 7,969,827 km (0.086 R)
• M11: 9,058,151 km (0.067 R)
• M12: 10,930,219 km (0.034 R)
• M13: 12,849,560 km (0.085 R)
• M14: 15,274,391 km (0.088 R)
• M15: 17,182,662 km (0.084 R)
• M16: 18,484,313 km (0.073 R)
• M17: 19,073,878 km (0.101 R)
• M18: 20,468,579 km (0.105 R)
• M19: 21,190,688 km (0.09 R)
• M20: 24,753,660 km (0.116 R)
• M21: 26,094,656 km (0.115 R)
• M22: 27,810,843 km (0.03 R)
• M23: 36,602,410 km (0.116 R)
• M24: 38,612,856 km (0.082 R)
• M25: 39,023,502 km (0.116 R)
• M26: 43,588,032 km (0.112 R)
• M27: 48,020,916 km (0.107 R)
• M28: 48,974,154 km (0.073 R)
• M29: 50,754,369 km (0.061 R)
• M30: 56,529,295 km (0.087 R)
• M31: 58,307,565 km (0.05 R)
• M32: 62,727,135 km (0.057 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 16,314 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit