🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.5

Radius: 8.6

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.73 AU - 1.07 AU

Year: 551 Days

Day: 12.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,511,238 km

• M1: 106,962 km (0.108 R)
• M2: 439,519 km (0.106 R)
• M3: 1,082,640 km (0.117 R)
• M4: 1,443,470 km (0.104 R)
• M5: 1,825,692 km (0.11 R)
• M6: 2,490,206 km (0.114 R)
• M7: 4,637,983 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.4

Radius: 14.8

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.84 AU - 1.28 AU

Year: 705 Days

Day: 11.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,511,238 km

• M1: 185,053 km (0.118 R)
• M2: 915,838 km (0.093 R)
• M3: 1,564,345 km (0.041 R)
• M4: 2,709,068 km (0.06 R)
• M5: 3,893,285 km (0.086 R)
• M6: 4,388,902 km (0.113 R)
• M7: 5,750,542 km (0.098 R)
• M8: 6,356,114 km (0.092 R)
• M9: 6,875,518 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.5

Radius: 9.2

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.23 AU - 1.27 AU

Year: 902 Days

Day: 10.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,511,238 km

• M1: 114,442 km (0.083 R)
• M2: 422,315 km (0.064 R)
• M3: 821,741 km (0.107 R)
• M4: 1,516,324 km (0.043 R)
• M5: 2,018,973 km (0.076 R)
• M6: 2,761,876 km (0.028 R)
• M7: 3,069,150 km (0.108 R)
• M8: 3,698,209 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.5

Radius: 13.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.62 AU - 2.22 AU

Year: 1718 Days

Day: 5.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,511,238 km

• M1: 170,242 km (0.084 R)
• M2: 601,234 km (0.07 R)
• M3: 1,183,768 km (0.114 R)
• M4: 1,656,497 km (0.11 R)
• M5: 2,816,629 km (0.084 R)
• M6: 3,681,005 km (0.117 R)
• M7: 4,150,593 km (0.119 R)
• M8: 4,623,921 km (0.04 R)
• M9: 5,913,753 km (0.086 R)
• M10: 6,538,474 km (0.119 R)
• M11: 7,182,194 km (0.09 R)
• M12: 8,596,941 km (0.04 R)
• M13: 9,973,092 km (0.046 R)
• M14: 10,991,105 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.9

Radius: 13.5

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.39 AU - 4.35 AU

Year: 4916 Days

Day: 9.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,511,238 km

• M1: 167,998 km (0.107 R)
• M2: 595,250 km (0.119 R)
• M3: 1,033,871 km (0.082 R)
• M4: 2,142,092 km (0.08 R)
• M5: 2,925,087 km (0.072 R)
• M6: 5,394,350 km (0.079 R)
• M7: 6,048,092 km (0.11 R)
• M8: 7,032,895 km (0.066 R)
• M9: 8,580,635 km (0.041 R)
• M10: 9,434,988 km (0.119 R)
• M11: 11,531,453 km (0.051 R)
• M12: 16,181,403 km (0.04 R)
• M13: 17,138,530 km (0.099 R)
• M14: 19,352,130 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 14.3

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.17 AU - 5.03 AU

Year: 6370 Days

Day: 8.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 58.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,511,238 km

• M1: 177,872 km (0.085 R)
• M2: 637,287 km (0.033 R)
• M3: 1,434,195 km (0.07 R)
• M4: 1,982,172 km (0.109 R)
• M5: 2,439,941 km (0.075 R)
• M6: 2,987,469 km (0.096 R)
• M7: 4,602,079 km (0.08 R)
• M8: 5,091,414 km (0.097 R)
• M9: 6,114,813 km (0.095 R)
• M10: 6,805,207 km (0.056 R)
• M11: 8,683,708 km (0.065 R)
• M12: 10,709,263 km (0.065 R)
• M13: 11,341,763 km (0.117 R)
• M14: 12,781,642 km (0.097 R)
• M15: 13,494,027 km (0.103 R)
• M16: 13,965,859 km (0.112 R)
• M17: 15,221,883 km (0.097 R)
• M18: 18,787,548 km (0.071 R)
• M19: 19,575,480 km (0.069 R)
• M20: 20,045,367 km (0.113 R)
• M21: 20,937,868 km (0.117 R)
• M22: 24,619,621 km (0.118 R)
• M23: 25,088,610 km (0.095 R)
• M24: 28,199,049 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.7

Radius: 13.5

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.1 AU - 6.16 AU

Year: 7502 Days

Day: 8.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,511,238 km

• M1: 169,195 km (0.102 R)
• M2: 623,075 km (0.073 R)
• M3: 1,064,239 km (0.061 R)
• M4: 1,573,470 km (0.088 R)
• M5: 2,535,684 km (0.076 R)
• M6: 3,018,586 km (0.12 R)
• M7: 3,684,596 km (0.079 R)
• M8: 4,335,945 km (0.041 R)
• M9: 5,904,329 km (0.118 R)
• M10: 6,539,970 km (0.091 R)
• M11: 7,741,540 km (0.05 R)
• M12: 9,177,081 km (0.12 R)
• M13: 10,129,721 km (0.061 R)
• M14: 11,844,411 km (0.049 R)
• M15: 12,400,317 km (0.111 R)
• M16: 14,736,886 km (0.096 R)
• M17: 19,109,931 km (0.105 R)
• M18: 20,109,245 km (0.083 R)
• M19: 20,582,273 km (0.054 R)
• M20: 21,062,483 km (0.109 R)
• M21: 22,045,640 km (0.108 R)
• M22: 22,548,588 km (0.117 R)
• M23: 23,317,371 km (0.072 R)
• M24: 24,547,814 km (0.071 R)
• M25: 33,183,351 km (0.043 R)
• M26: 34,852,414 km (0.063 R)
• M27: 35,995,791 km (0.08 R)
• M28: 36,576,679 km (0.045 R)
• M29: 42,995,475 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 521

Radius: 6.9

Gravity: 10.94 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.91 AU - 6.27 AU

Year: 9704 Days

Day: 20.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,511,238 km

• M1: 87,365 km (0.11 R)
• M2: 319,092 km (0.101 R)
• M3: 620,233 km (0.093 R)
• M4: 985,700 km (0.067 R)
• M5: 1,410,858 km (0.111 R)
• M6: 2,471,656 km (0.109 R)
• M7: 3,014,098 km (0.117 R)
• M8: 3,394,525 km (0.103 R)
• M9: 4,117,382 km (0.088 R)
• M10: 4,789,525 km (0.084 R)
• M11: 5,403,774 km (0.101 R)
• M12: 5,729,898 km (0.032 R)
• M13: 9,146,863 km (0.063 R)
• M14: 10,138,846 km (0.053 R)
• M15: 11,044,512 km (0.113 R)
• M16: 12,502,792 km (0.034 R)
• M17: 12,843,426 km (0.117 R)
• M18: 14,391,764 km (0.095 R)
• M19: 14,892,318 km (0.119 R)
• M20: 17,359,038 km (0.068 R)
• M21: 22,081,543 km (0.066 R)
• M22: 25,092,649 km (0.086 R)
• M23: 25,362,823 km (0.108 R)
• M24: 27,786,309 km (0.077 R)
• M25: 30,359,990 km (0.1 R)
• M26: 30,975,735 km (0.052 R)
• M27: 32,126,143 km (0.101 R)
• M28: 33,088,356 km (0.111 R)
• M29: 39,633,113 km (0.072 R)
• M30: 41,992,870 km (0.059 R)
• M31: 42,373,896 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.5

Radius: 4.9

Gravity: 34.8 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 8.96 AU - 9.1 AU

Year: 17521 Days

Day: 20.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,511,238 km

• M1: 63,130 km (0.087 R)
• M2: 445,951 km (0.115 R)
• M3: 1,101,938 km (0.091 R)
• M4: 1,624,483 km (0.097 R)
• M5: 1,893,610 km (0.099 R)
• M6: 3,009,760 km (0.051 R)
• M7: 4,404,909 km (0.053 R)
• M8: 4,575,002 km (0.081 R)
• M9: 6,747,911 km (0.09 R)
• M10: 6,974,253 km (0.089 R)
• M11: 9,081,040 km (0.093 R)
• M12: 14,273,133 km (0.073 R)
• M13: 16,124,706 km (0.067 R)
• M14: 20,390,489 km (0.099 R)
• M15: 21,441,863 km (0.117 R)
• M16: 22,228,748 km (0.115 R)
• M17: 25,460,510 km (0.079 R)
• M18: 30,442,269 km (0.102 R)
• M19: 30,936,241 km (0.054 R)
• M20: 50,225,092 km (0.029 R)
• M21: 52,489,106 km (0.108 R)
• M22: 54,276,202 km (0.097 R)
• M23: 56,473,944 km (0.113 R)
• M24: 58,160,511 km (0.072 R)
• M25: 65,039,170 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.4

Radius: 7.4

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 7.44 AU - 11.02 AU

Year: 18106 Days

Day: 16.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 60,511,238 km

• M1: 92,003 km (0.113 R)
• M2: 450,290 km (0.112 R)
• M3: 700,866 km (0.085 R)
• M4: 1,117,646 km (0.041 R)
• M5: 1,348,625 km (0.11 R)
• M6: 1,596,359 km (0.106 R)
• M7: 2,487,813 km (0.065 R)
• M8: 3,593,939 km (0.044 R)
• M9: 4,135,484 km (0.096 R)
• M10: 5,561,151 km (0.091 R)
• M11: 5,896,550 km (0.118 R)
• M12: 6,127,678 km (0.097 R)
• M13: 6,732,203 km (0.056 R)
• M14: 8,441,209 km (0.074 R)
• M15: 13,471,587 km (0.052 R)
• M16: 13,941,325 km (0.094 R)
• M17: 15,489,214 km (0.075 R)
• M18: 16,531,911 km (0.079 R)
• M19: 16,992,822 km (0.039 R)
• M20: 17,700,270 km (0.083 R)
• M21: 18,673,704 km (0.095 R)
• M22: 19,426,929 km (0.038 R)
• M23: 20,815,796 km (0.079 R)
• M24: 21,625,419 km (0.077 R)
• M25: 23,499,731 km (0.118 R)
• M26: 28,764,080 km (0.104 R)
• M27: 30,795,170 km (0.042 R)
• M28: 38,254,569 km (0.093 R)
• M29: 39,196,288 km (0.118 R)
• M30: 40,153,265 km (0.083 R)
• M31: 43,117,846 km (0.12 R)
• M32: 43,698,585 km (0.106 R)
• M33: 45,923,106 km (0.086 R)
• M34: 46,986,447 km (0.115 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: 157 - 10,434 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit