🌌 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: 27.2

Radius: 8.7

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.45 AU - 0.75 AU

Year: 327 Days

Day: 12.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 67,321,772 km

• M1: 317,596 km (0.052 R)
• M2: 506,838 km (0.11 R)
• M3: 927,507 km (0.077 R)
• M4: 1,261,409 km (0.063 R)
• M5: 1,587,832 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.1

Radius: 9.5

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.64 AU - 0.68 AU

Year: 377 Days

Day: 8.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,321,772 km

• M1: 126,560 km (0.075 R)
• M2: 434,283 km (0.045 R)
• M3: 930,948 km (0.104 R)
• M4: 1,129,763 km (0.106 R)
• M5: 1,993,242 km (0.037 R)
• M6: 2,509,205 km (0.065 R)
• M7: 2,955,456 km (0.115 R)
• M8: 3,231,314 km (0.074 R)
• M9: 3,582,719 km (0.09 R)
• M10: 4,058,291 km (0.115 R)
• M11: 4,554,058 km (0.089 R)
• M12: 5,308,480 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.8

Radius: 14.9

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.7 AU - 0.76 AU

Year: 438 Days

Day: 8.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,321,772 km

• M1: 188,942 km (0.118 R)
• M2: 587,920 km (0.087 R)
• M3: 1,098,497 km (0.074 R)
• M4: 1,948,811 km (0.106 R)
• M5: 2,253,542 km (0.072 R)
• M6: 2,629,931 km (0.073 R)
• M7: 3,031,302 km (0.108 R)
• M8: 3,367,598 km (0.101 R)
• M9: 3,679,958 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.4

Radius: 13.8

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.72 AU - 0.94 AU

Year: 532 Days

Day: 6.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,321,772 km

• M1: 171,738 km (0.082 R)
• M2: 432,487 km (0.078 R)
• M3: 727,943 km (0.05 R)
• M4: 1,209,648 km (0.114 R)
• M5: 1,591,871 km (0.11 R)
• M6: 1,854,266 km (0.103 R)
• M7: 2,131,171 km (0.097 R)
• M8: 3,489,221 km (0.116 R)
• M9: 4,456,670 km (0.075 R)
• M10: 4,729,387 km (0.094 R)
• M11: 5,214,832 km (0.077 R)
• M12: 5,673,798 km (0.059 R)
• M13: 7,343,759 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.2

Radius: 15

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.93 AU - 1.11 AU

Year: 724 Days

Day: 9.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,321,772 km

• M1: 186,549 km (0.111 R)
• M2: 567,574 km (0.11 R)
• M3: 866,920 km (0.117 R)
• M4: 1,209,349 km (0.107 R)
• M5: 1,504,207 km (0.067 R)
• M6: 2,002,517 km (0.092 R)
• M7: 3,165,042 km (0.049 R)
• M8: 3,743,836 km (0.093 R)
• M9: 5,020,654 km (0.111 R)
• M10: 6,141,741 km (0.114 R)
• M11: 6,545,804 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.7

Radius: 11.7

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.28 AU - 3.3 AU

Year: 3276 Days

Day: 9.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,321,772 km

• M1: 181,462 km (0.116 R)
• M2: 430,543 km (0.115 R)
• M3: 833,709 km (0.051 R)
• M4: 1,079,498 km (0.095 R)
• M5: 1,575,714 km (0.12 R)
• M6: 2,177,098 km (0.089 R)
• M7: 2,754,097 km (0.073 R)
• M8: 3,168,483 km (0.116 R)
• M9: 3,515,400 km (0.108 R)
• M10: 4,248,131 km (0.093 R)
• M11: 4,726,096 km (0.108 R)
• M12: 5,411,105 km (0.102 R)
• M13: 6,993,252 km (0.092 R)
• M14: 8,834,951 km (0.096 R)
• M15: 10,809,045 km (0.118 R)
• M16: 11,304,662 km (0.116 R)
• M17: 12,053,848 km (0.075 R)
• M18: 12,360,374 km (0.061 R)
• M19: 13,690,300 km (0.096 R)
• M20: 14,851,029 km (0.062 R)
• M21: 15,639,709 km (0.069 R)
• M22: 16,165,097 km (0.111 R)
• M23: 16,556,146 km (0.073 R)
• M24: 17,169,497 km (0.114 R)
• M25: 18,017,418 km (0.103 R)
• M26: 19,308,448 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.3

Radius: 13.3

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.77 AU - 3.73 AU

Year: 4118 Days

Day: 6 Hours

Environment

Temp: -219 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 67,321,772 km

• M1: 165,455 km (0.111 R)
• M2: 479,162 km (0.091 R)
• M3: 840,441 km (0.079 R)
• M4: 1,292,526 km (0.08 R)
• M5: 1,542,952 km (0.057 R)
• M6: 1,804,749 km (0.091 R)
• M7: 2,333,428 km (0.084 R)
• M8: 2,882,901 km (0.101 R)
• M9: 3,283,673 km (0.105 R)
• M10: 3,895,080 km (0.105 R)
• M11: 4,296,900 km (0.071 R)
• M12: 4,742,103 km (0.102 R)
• M13: 5,403,475 km (0.073 R)
• M14: 6,240,326 km (0.073 R)
• M15: 6,722,928 km (0.075 R)
• M16: 8,464,846 km (0.12 R)
• M17: 8,806,378 km (0.08 R)
• M18: 10,411,563 km (0.075 R)
• M19: 10,686,673 km (0.108 R)
• M20: 13,056,453 km (0.059 R)
• M21: 14,111,567 km (0.086 R)
• M22: 14,432,155 km (0.045 R)
• M23: 15,043,113 km (0.09 R)
• M24: 16,648,149 km (0.099 R)
• M25: 17,659,430 km (0.039 R)
• M26: 19,256,388 km (0.102 R)
• M27: 22,457,184 km (0.067 R)
• M28: 23,168,073 km (0.086 R)
• M29: 23,942,092 km (0.045 R)
• M30: 24,307,709 km (0.067 R)
• M31: 25,421,166 km (0.064 R)
• M32: 27,055,373 km (0.03 R)
• M33: 27,555,778 km (0.113 R)
• M34: 27,948,024 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 963.4

Radius: 4.3

Gravity: 52.1 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.31 AU - 7.41 AU

Year: 14035 Days

Day: 18.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 67,321,772 km

• M1: 177,872 km (0.101 R)
• M2: 990,188 km (0.098 R)
• M3: 1,997,580 km (0.076 R)
• M4: 2,456,397 km (0.116 R)
• M5: 3,105,353 km (0.111 R)
• M6: 3,643,007 km (0.117 R)
• M7: 3,768,370 km (0.085 R)
• M8: 4,496,463 km (0.086 R)
• M9: 6,601,604 km (0.11 R)
• M10: 6,898,706 km (0.116 R)
• M11: 8,483,246 km (0.084 R)
• M12: 8,819,991 km (0.111 R)
• M13: 9,262,502 km (0.103 R)
• M14: 9,412,399 km (0.109 R)
• M15: 10,442,979 km (0.074 R)
• M16: 10,762,669 km (0.109 R)
• M17: 11,032,693 km (0.078 R)
• M18: 13,195,280 km (0.073 R)
• M19: 14,536,126 km (0.103 R)
• M20: 15,616,671 km (0.056 R)
• M21: 22,216,780 km (0.062 R)
• M22: 23,469,512 km (0.086 R)
• M23: 25,911,398 km (0.06 R)
• M24: 26,330,123 km (0.083 R)
• M25: 28,212,662 km (0.085 R)
• M26: 31,801,964 km (0.114 R)
• M27: 32,639,263 km (0.062 R)
• M28: 33,772,617 km (0.076 R)
• M29: 35,704,524 km (0.114 R)
• M30: 37,388,996 km (0.117 R)
• M31: 40,040,468 km (0.11 R)
• M32: 40,979,494 km (0.096 R)
• M33: 43,970,554 km (0.069 R)
• M34: 44,954,310 km (0.097 R)
• M35: 52,146,078 km (0.104 R)
• M36: 53,097,520 km (0.062 R)
• M37: 61,403,792 km (0.061 R)
• M38: 61,532,447 km (0.103 R)
• M39: 63,215,722 km (0.114 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 10,739 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit