🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.7

Radius: 9.3

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.77 AU - 0.83 AU

Year: 477 Days

Day: 11.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,442,064 km

• M1: 141,968 km (0.097 R)
• M2: 468,241 km (0.079 R)
• M3: 797,506 km (0.046 R)
• M4: 1,333,067 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.1

Radius: 12.2

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.91 AU - 0.93 AU

Year: 588 Days

Day: 14.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 128.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,442,064 km

• M1: 151,692 km (0.106 R)
• M2: 556,504 km (0.105 R)
• M3: 944,860 km (0.085 R)
• M4: 1,496,278 km (0.111 R)
• M5: 2,172,161 km (0.089 R)
• M6: 3,653,928 km (0.106 R)
• M7: 4,076,093 km (0.119 R)
• M8: 4,625,716 km (0.064 R)
• M9: 6,064,398 km (0.118 R)
• M10: 6,618,359 km (0.111 R)
• M11: 7,077,026 km (0.079 R)
• M12: 7,468,075 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.8

Radius: 13.7

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.84 AU - 1.34 AU

Year: 759 Days

Day: 12.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,442,064 km

• M1: 170,392 km (0.113 R)
• M2: 670,797 km (0.082 R)
• M3: 1,146,219 km (0.085 R)
• M4: 1,609,224 km (0.107 R)
• M5: 2,082,851 km (0.088 R)
• M6: 2,527,007 km (0.112 R)
• M7: 3,892,088 km (0.082 R)
• M8: 4,620,929 km (0.063 R)
• M9: 5,387,468 km (0.096 R)
• M10: 6,237,184 km (0.056 R)
• M11: 6,764,816 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.4

Radius: 14.8

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.97 AU - 1.45 AU

Year: 888 Days

Day: 11.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,442,064 km

• M1: 184,005 km (0.116 R)
• M2: 675,285 km (0.099 R)
• M3: 1,219,971 km (0.081 R)
• M4: 1,841,849 km (0.12 R)
• M5: 2,454,602 km (0.12 R)
• M6: 2,917,308 km (0.038 R)
• M7: 3,992,767 km (0.06 R)
• M8: 4,773,668 km (0.104 R)
• M9: 5,485,006 km (0.118 R)
• M10: 5,964,766 km (0.114 R)
• M11: 7,460,595 km (0.109 R)
• M12: 8,396,180 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.8

Radius: 11

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.34 AU - 2.86 AU

Year: 2796 Days

Day: 10.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,442,064 km

• M1: 136,882 km (0.117 R)
• M2: 1,812,827 km (0.082 R)
• M3: 3,090,243 km (0.066 R)
• M4: 3,687,438 km (0.095 R)
• M5: 4,233,620 km (0.076 R)
• M6: 4,659,076 km (0.058 R)
• M7: 5,277,663 km (0.112 R)
• M8: 6,802,066 km (0.068 R)
• M9: 7,257,442 km (0.038 R)
• M10: 8,006,478 km (0.067 R)
• M11: 8,894,940 km (0.096 R)
• M12: 10,901,646 km (0.082 R)
• M13: 11,704,238 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.8

Radius: 8.5

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.73 AU - 3.15 AU

Year: 3362 Days

Day: 13 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,442,064 km

• M1: 114,592 km (0.098 R)
• M2: 389,104 km (0.094 R)
• M3: 706,252 km (0.119 R)
• M4: 1,007,990 km (0.073 R)
• M5: 1,325,587 km (0.094 R)
• M6: 2,283,611 km (0.032 R)
• M7: 2,689,022 km (0.051 R)
• M8: 3,272,304 km (0.111 R)
• M9: 3,644,952 km (0.059 R)
• M10: 4,155,829 km (0.117 R)
• M11: 4,522,493 km (0.105 R)
• M12: 6,064,698 km (0.104 R)
• M13: 7,929,585 km (0.057 R)
• M14: 8,567,470 km (0.095 R)
• M15: 10,771,795 km (0.063 R)
• M16: 11,071,738 km (0.107 R)
• M17: 12,941,263 km (0.082 R)
• M18: 13,625,374 km (0.1 R)
• M19: 15,657,960 km (0.103 R)
• M20: 20,314,344 km (0.049 R)
• M21: 21,237,811 km (0.074 R)
• M22: 21,642,025 km (0.072 R)
• M23: 24,249,067 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.7

Radius: 9.8

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.68 AU - 4.36 AU

Year: 4404 Days

Day: 5.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 143 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,442,064 km

• M1: 123,568 km (0.11 R)
• M2: 456,872 km (0.092 R)
• M3: 1,053,169 km (0.097 R)
• M4: 2,365,741 km (0.118 R)
• M5: 2,755,892 km (0.119 R)
• M6: 3,138,414 km (0.093 R)
• M7: 4,315,001 km (0.093 R)
• M8: 4,655,935 km (0.08 R)
• M9: 5,038,007 km (0.032 R)
• M10: 5,588,079 km (0.111 R)
• M11: 6,836,922 km (0.049 R)
• M12: 7,213,161 km (0.113 R)
• M13: 8,425,502 km (0.043 R)
• M14: 8,892,247 km (0.061 R)
• M15: 9,696,485 km (0.084 R)
• M16: 10,472,449 km (0.056 R)
• M17: 11,369,289 km (0.107 R)
• M18: 11,692,869 km (0.11 R)
• M19: 15,621,907 km (0.108 R)
• M20: 16,174,223 km (0.092 R)
• M21: 16,896,032 km (0.081 R)
• M22: 17,909,707 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.6

Radius: 5

Gravity: 31.62 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.69 AU - 8.53 AU

Year: 12643 Days

Day: 22.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,442,064 km

• M1: 62,532 km (0.069 R)
• M2: 629,657 km (0.077 R)
• M3: 1,059,003 km (0.119 R)
• M4: 1,379,143 km (0.118 R)
• M5: 1,744,760 km (0.053 R)
• M6: 2,711,761 km (0.106 R)
• M7: 3,060,922 km (0.08 R)
• M8: 3,492,362 km (0.106 R)
• M9: 3,848,854 km (0.118 R)
• M10: 4,109,454 km (0.118 R)
• M11: 4,538,500 km (0.097 R)
• M12: 4,962,909 km (0.083 R)
• M13: 7,715,361 km (0.112 R)
• M14: 8,511,371 km (0.105 R)
• M15: 9,155,838 km (0.118 R)
• M16: 9,939,432 km (0.119 R)
• M17: 10,320,009 km (0.087 R)
• M18: 11,284,616 km (0.083 R)
• M19: 13,326,029 km (0.099 R)
• M20: 13,722,014 km (0.092 R)
• M21: 15,601,263 km (0.06 R)
• M22: 17,176,528 km (0.108 R)
• M23: 18,445,717 km (0.068 R)
• M24: 20,903,161 km (0.116 R)
• M25: 25,739,211 km (0.104 R)
• M26: 32,797,688 km (0.084 R)
• M27: 38,201,462 km (0.084 R)
• M28: 39,537,969 km (0.047 R)
• M29: 42,021,743 km (0.062 R)
• M30: 42,729,789 km (0.07 R)
• M31: 43,445,615 km (0.118 R)
• M32: 45,196,359 km (0.117 R)
• M33: 45,492,563 km (0.116 R)
• M34: 53,824,267 km (0.113 R)
• M35: 54,324,073 km (0.099 R)
• M36: 54,659,023 km (0.053 R)
• M37: 56,183,425 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 285.9

Radius: 4.5

Gravity: 14.12 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 9.22 AU - 9.68 AU

Year: 19372 Days

Day: 20.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,442,064 km

• M1: 55,950 km (0.093 R)
• M2: 267,032 km (0.098 R)
• M3: 1,212,491 km (0.11 R)
• M4: 1,618,350 km (0.032 R)
• M5: 2,319,665 km (0.095 R)
• M6: 2,941,842 km (0.105 R)
• M7: 3,354,732 km (0.116 R)
• M8: 4,793,116 km (0.115 R)
• M9: 8,102,969 km (0.094 R)
• M10: 8,476,515 km (0.089 R)
• M11: 11,829,152 km (0.111 R)
• M12: 12,248,924 km (0.052 R)
• M13: 14,770,995 km (0.118 R)
• M14: 15,683,093 km (0.057 R)
• M15: 16,856,538 km (0.081 R)
• M16: 17,696,381 km (0.115 R)
• M17: 36,675,564 km (0.09 R)
• M18: 37,183,000 km (0.039 R)
• M19: 38,472,084 km (0.099 R)
• M20: 42,796,809 km (0.106 R)
• M21: 45,511,861 km (0.098 R)
• M22: 51,757,722 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226

Radius: 6.4

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 10.67 AU - 10.79 AU

Year: 23438 Days

Day: 21 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,442,064 km

• M1: 85,720 km (0.088 R)
• M2: 327,769 km (0.076 R)
• M3: 575,054 km (0.104 R)
• M4: 789,727 km (0.075 R)
• M5: 1,002,455 km (0.091 R)
• M6: 1,503,010 km (0.092 R)
• M7: 2,333,278 km (0.045 R)
• M8: 2,539,274 km (0.116 R)
• M9: 5,085,131 km (0.118 R)
• M10: 6,255,734 km (0.114 R)
• M11: 8,621,774 km (0.101 R)
• M12: 9,895,899 km (0.06 R)
• M13: 10,944,879 km (0.073 R)
• M14: 12,005,229 km (0.101 R)
• M15: 12,560,237 km (0.103 R)
• M16: 13,067,823 km (0.063 R)
• M17: 18,838,411 km (0.044 R)
• M18: 23,348,039 km (0.119 R)
• M19: 24,407,042 km (0.087 R)
• M20: 30,298,655 km (0.043 R)
• M21: 35,669,069 km (0.119 R)
• M22: 36,557,680 km (0.111 R)
• M23: 47,785,150 km (0.106 R)
• M24: 54,340,080 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 11,979 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit