🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.46 AU - 0.64 AU

Year: 268 Days

Day: 30 Hours

Environment

Temp: -127 °C

Axial Tilt: 109.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.7

Radius: 9.9

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.7 AU - 0.72 AU

Year: 392 Days

Day: 10.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 162.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,569,200 km

• M1: 123,119 km (0.051 R)
• M2: 517,010 km (0.039 R)
• M3: 845,826 km (0.084 R)
• M4: 1,360,443 km (0.032 R)
• M5: 1,687,165 km (0.059 R)
• M6: 2,043,507 km (0.051 R)
• M7: 2,521,622 km (0.086 R)
• M8: 2,950,668 km (0.097 R)
• M9: 3,274,249 km (0.108 R)
• M10: 3,726,932 km (0.097 R)
• M11: 4,272,814 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.9

Radius: 10.9

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.22 AU - 2.3 AU

Year: 2229 Days

Day: 9.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,569,200 km

• M1: 135,685 km (0.119 R)
• M2: 574,306 km (0.118 R)
• M3: 925,113 km (0.085 R)
• M4: 1,315,115 km (0.065 R)
• M5: 1,716,037 km (0.052 R)
• M6: 2,218,536 km (0.12 R)
• M7: 2,647,284 km (0.051 R)
• M8: 3,118,517 km (0.091 R)
• M9: 4,878,087 km (0.111 R)
• M10: 5,874,559 km (0.026 R)
• M11: 6,288,945 km (0.088 R)
• M12: 8,194,523 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.1

Radius: 9.1

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.92 AU - 2.74 AU

Year: 2333 Days

Day: 7 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,569,200 km

• M1: 113,246 km (0.074 R)
• M2: 673,938 km (0.108 R)
• M3: 1,019,958 km (0.079 R)
• M4: 1,652,159 km (0.115 R)
• M5: 1,996,084 km (0.097 R)
• M6: 2,287,950 km (0.098 R)
• M7: 2,644,591 km (0.073 R)
• M8: 3,146,193 km (0.086 R)
• M9: 4,653,242 km (0.12 R)
• M10: 5,248,791 km (0.061 R)
• M11: 5,707,458 km (0.032 R)
• M12: 6,149,520 km (0.045 R)
• M13: 8,656,780 km (0.045 R)
• M14: 10,000,468 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.5

Radius: 13.2

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.69 AU - 2.71 AU

Year: 2910 Days

Day: 14.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,569,200 km

• M1: 165,904 km (0.068 R)
• M2: 634,145 km (0.068 R)
• M3: 1,183,918 km (0.081 R)
• M4: 1,654,552 km (0.083 R)
• M5: 2,251,448 km (0.081 R)
• M6: 2,774,741 km (0.059 R)
• M7: 3,491,166 km (0.077 R)
• M8: 5,682,326 km (0.113 R)
• M9: 6,901,399 km (0.098 R)
• M10: 7,429,030 km (0.111 R)
• M11: 8,848,864 km (0.096 R)
• M12: 9,969,053 km (0.032 R)
• M13: 10,685,178 km (0.088 R)
• M14: 11,307,953 km (0.103 R)
• M15: 12,535,404 km (0.111 R)
• M16: 13,656,640 km (0.075 R)
• M17: 17,140,475 km (0.056 R)
• M18: 18,877,456 km (0.08 R)
• M19: 20,161,305 km (0.111 R)
• M20: 21,698,872 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.9

Radius: 10.5

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 3.72 AU - 4.9 AU

Year: 5870 Days

Day: 13.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,569,200 km

• M1: 150,495 km (0.058 R)
• M2: 504,743 km (0.025 R)
• M3: 927,357 km (0.111 R)
• M4: 3,239,392 km (0.09 R)
• M5: 4,311,111 km (0.108 R)
• M6: 6,294,480 km (0.048 R)
• M7: 6,793,389 km (0.102 R)
• M8: 8,170,587 km (0.087 R)
• M9: 9,357,496 km (0.088 R)
• M10: 9,850,571 km (0.091 R)
• M11: 10,296,223 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.9

Radius: 10.7

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 4.17 AU - 5.07 AU

Year: 6514 Days

Day: 13.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 77,569,200 km

• M1: 136,732 km (0.035 R)
• M2: 547,678 km (0.098 R)
• M3: 1,033,422 km (0.036 R)
• M4: 1,389,315 km (0.034 R)
• M5: 1,933,104 km (0.069 R)
• M6: 2,595,972 km (0.084 R)
• M7: 3,012,303 km (0.111 R)
• M8: 3,636,874 km (0.054 R)
• M9: 4,212,826 km (0.055 R)
• M10: 4,877,788 km (0.069 R)
• M11: 5,484,108 km (0.093 R)
• M12: 6,416,552 km (0.073 R)
• M13: 7,145,094 km (0.1 R)
• M14: 8,466,791 km (0.044 R)
• M15: 9,118,589 km (0.043 R)
• M16: 10,134,957 km (0.114 R)
• M17: 12,173,976 km (0.111 R)
• M18: 13,289,826 km (0.082 R)
• M19: 14,472,696 km (0.041 R)
• M20: 17,665,713 km (0.104 R)
• M21: 19,094,223 km (0.087 R)
• M22: 20,367,900 km (0.094 R)
• M23: 22,099,196 km (0.113 R)
• M24: 26,122,780 km (0.072 R)
• M25: 27,503,419 km (0.094 R)
• M26: 27,974,203 km (0.041 R)
• M27: 31,217,485 km (0.064 R)
• M28: 34,485,152 km (0.104 R)
• M29: 36,710,420 km (0.041 R)
• M30: 38,090,460 km (0.083 R)
• M31: 39,984,070 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.3

Radius: 4

Gravity: 23.21 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.76 AU - 6.04 AU

Year: 9401 Days

Day: 20.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 77,569,200 km

• M1: 51,013 km (0.077 R)
• M2: 306,676 km (0.111 R)
• M3: 432,487 km (0.105 R)
• M4: 803,490 km (0.099 R)
• M5: 935,286 km (0.095 R)
• M6: 1,091,765 km (0.115 R)
• M7: 1,496,128 km (0.098 R)
• M8: 1,711,400 km (0.099 R)
• M9: 2,358,111 km (0.108 R)
• M10: 3,913,779 km (0.099 R)
• M11: 4,296,600 km (0.117 R)
• M12: 4,537,902 km (0.098 R)
• M13: 5,255,822 km (0.104 R)
• M14: 6,046,596 km (0.057 R)
• M15: 6,281,615 km (0.089 R)
• M16: 6,592,479 km (0.102 R)
• M17: 7,548,559 km (0.026 R)
• M18: 7,781,632 km (0.119 R)
• M19: 10,054,024 km (0.039 R)
• M20: 10,431,460 km (0.118 R)
• M21: 12,952,483 km (0.063 R)
• M22: 14,382,788 km (0.077 R)
• M23: 15,914,969 km (0.116 R)
• M24: 19,012,543 km (0.099 R)
• M25: 22,809,935 km (0.073 R)
• M26: 23,215,495 km (0.108 R)
• M27: 27,083,348 km (0.097 R)
• M28: 27,721,233 km (0.066 R)
• M29: 31,961,585 km (0.077 R)
• M30: 34,659,882 km (0.091 R)
• M31: 35,411,462 km (0.06 R)
• M32: 35,628,229 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 357.7

Radius: 6.5

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 6.55 AU - 9.49 AU

Year: 14899 Days

Day: 17.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,569,200 km

• M1: 81,680 km (0.093 R)
• M2: 566,677 km (0.06 R)
• M3: 775,815 km (0.093 R)
• M4: 995,424 km (0.104 R)
• M5: 3,039,978 km (0.058 R)
• M6: 5,168,158 km (0.103 R)
• M7: 6,252,443 km (0.073 R)
• M8: 6,749,407 km (0.108 R)
• M9: 7,149,432 km (0.043 R)
• M10: 7,822,173 km (0.071 R)
• M11: 10,831,335 km (0.099 R)
• M12: 19,960,694 km (0.106 R)
• M13: 28,206,828 km (0.103 R)
• M14: 29,559,043 km (0.054 R)
• M15: 30,304,938 km (0.042 R)
• M16: 40,647,985 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 989.9

Radius: 4.4

Gravity: 51.13 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.77 AU - 10.83 AU

Year: 17125 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 77,569,200 km

• M1: 54,753 km (0.1 R)
• M2: 267,481 km (0.112 R)
• M3: 442,361 km (0.106 R)
• M4: 586,424 km (0.066 R)
• M5: 1,022,651 km (0.114 R)
• M6: 1,194,689 km (0.117 R)
• M7: 1,481,019 km (0.052 R)
• M8: 1,702,274 km (0.095 R)
• M9: 1,887,177 km (0.101 R)
• M10: 2,363,946 km (0.119 R)
• M11: 3,855,137 km (0.118 R)
• M12: 4,478,212 km (0.102 R)
• M13: 4,978,468 km (0.031 R)
• M14: 5,963,270 km (0.094 R)
• M15: 7,698,456 km (0.063 R)
• M16: 11,016,836 km (0.032 R)
• M17: 15,178,798 km (0.107 R)
• M18: 15,732,909 km (0.078 R)
• M19: 15,974,509 km (0.076 R)
• M20: 18,173,299 km (0.102 R)
• M21: 19,902,202 km (0.106 R)
• M22: 20,279,637 km (0.105 R)
• M23: 21,937,032 km (0.065 R)
• M24: 26,414,945 km (0.12 R)
• M25: 27,331,681 km (0.114 R)
• M26: 31,592,976 km (0.107 R)
• M27: 32,365,350 km (0.11 R)
• M28: 40,340,412 km (0.114 R)
• M29: 44,536,932 km (0.094 R)
• M30: 45,507,373 km (0.1 R)
• M31: 49,702,995 km (0.06 R)
• M32: 49,876,080 km (0.026 R)
• M33: 51,805,593 km (0.079 R)
• M34: 62,404,004 km (0.056 R)
• M35: 65,469,863 km (0.114 R)
• M36: 68,849,129 km (0.086 R)
• M37: 75,952,784 km (0.061 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: 544 - 12,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit