🌌 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: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.54 AU - 0.56 AU

Year: 259 Days

Day: 13 Hours

Environment

Temp: -128 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.7

Radius: 14.8

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.82 AU - 0.94 AU

Year: 525 Days

Day: 11.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,287,871 km

• M1: 184,005 km (0.051 R)
• M2: 645,066 km (0.089 R)
• M3: 1,111,961 km (0.097 R)
• M4: 1,614,161 km (0.09 R)
• M5: 2,185,176 km (0.12 R)
• M6: 2,678,849 km (0.105 R)
• M7: 3,431,476 km (0.056 R)
• M8: 3,948,486 km (0.077 R)
• M9: 4,646,809 km (0.053 R)
• M10: 5,188,353 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.4

Radius: 12

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.8 AU - 1.02 AU

Year: 552 Days

Day: 10.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,287,871 km

• M1: 151,393 km (0.065 R)
• M2: 543,938 km (0.116 R)
• M3: 986,000 km (0.116 R)
• M4: 1,635,853 km (0.111 R)
• M5: 2,014,784 km (0.096 R)
• M6: 2,546,455 km (0.077 R)
• M7: 2,943,936 km (0.063 R)
• M8: 3,332,293 km (0.073 R)
• M9: 4,110,201 km (0.076 R)
• M10: 4,550,468 km (0.102 R)
• M11: 5,039,055 km (0.097 R)
• M12: 5,950,405 km (0.037 R)
• M13: 6,718,889 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.4

Radius: 8.6

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.32 AU - 2.16 AU

Year: 1459 Days

Day: 9.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,287,871 km

• M1: 130,300 km (0.119 R)
• M2: 465,549 km (0.104 R)
• M3: 1,088,175 km (0.102 R)
• M4: 2,212,104 km (0.099 R)
• M5: 2,837,423 km (0.101 R)
• M6: 3,544,123 km (0.029 R)
• M7: 3,939,062 km (0.104 R)
• M8: 4,326,670 km (0.099 R)
• M9: 5,644,627 km (0.077 R)
• M10: 6,023,558 km (0.085 R)
• M11: 6,443,180 km (0.083 R)
• M12: 7,658,364 km (0.099 R)
• M13: 7,929,585 km (0.113 R)
• M14: 8,320,185 km (0.056 R)
• M15: 11,600,567 km (0.114 R)
• M16: 12,177,566 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.9

Radius: 11.8

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2 AU - 3.02 AU

Year: 2528 Days

Day: 10 Hours

Environment

Temp: -190 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,287,871 km

• M1: 146,756 km (0.029 R)
• M2: 826,827 km (0.097 R)
• M3: 1,351,168 km (0.118 R)
• M4: 1,826,740 km (0.116 R)
• M5: 2,630,978 km (0.082 R)
• M6: 4,316,048 km (0.103 R)
• M7: 4,820,193 km (0.089 R)
• M8: 5,561,899 km (0.105 R)
• M9: 6,975,300 km (0.08 R)
• M10: 8,215,915 km (0.117 R)
• M11: 10,537,824 km (0.11 R)
• M12: 13,312,715 km (0.113 R)
• M13: 15,868,445 km (0.04 R)
• M14: 17,234,871 km (0.059 R)
• M15: 17,780,754 km (0.082 R)
• M16: 18,225,658 km (0.111 R)
• M17: 19,022,416 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.6

Radius: 9.9

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.82 AU - 2.86 AU

Year: 3043 Days

Day: 7 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,287,871 km

• M1: 123,269 km (0.062 R)
• M2: 439,070 km (0.089 R)
• M3: 754,572 km (0.119 R)
• M4: 1,221,766 km (0.096 R)
• M5: 1,545,496 km (0.097 R)
• M6: 2,141,344 km (0.06 R)
• M7: 2,508,756 km (0.103 R)
• M8: 3,687,139 km (0.089 R)
• M9: 4,043,331 km (0.111 R)
• M10: 4,491,676 km (0.112 R)
• M11: 4,898,732 km (0.053 R)
• M12: 5,515,374 km (0.048 R)
• M13: 6,211,902 km (0.103 R)
• M14: 7,881,414 km (0.066 R)
• M15: 9,364,228 km (0.036 R)
• M16: 10,191,804 km (0.089 R)
• M17: 11,024,765 km (0.052 R)
• M18: 11,370,336 km (0.094 R)
• M19: 12,543,781 km (0.118 R)
• M20: 14,555,723 km (0.057 R)
• M21: 16,944,502 km (0.093 R)
• M22: 18,838,261 km (0.099 R)
• M23: 20,348,153 km (0.115 R)
• M24: 21,331,908 km (0.084 R)
• M25: 23,965,728 km (0.081 R)
• M26: 24,327,755 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.8

Radius: 9.5

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.75 AU - 3.93 AU

Year: 3881 Days

Day: 5.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 39,287,871 km

• M1: 118,182 km (0.075 R)
• M2: 437,873 km (0.044 R)
• M3: 775,665 km (0.061 R)
• M4: 1,137,393 km (0.103 R)
• M5: 1,446,462 km (0.075 R)
• M6: 2,066,246 km (0.058 R)
• M7: 2,424,233 km (0.119 R)
• M8: 2,976,698 km (0.06 R)
• M9: 3,470,521 km (0.087 R)
• M10: 4,580,088 km (0.071 R)
• M11: 5,057,754 km (0.034 R)
• M12: 5,520,610 km (0.113 R)
• M13: 9,351,064 km (0.111 R)
• M14: 10,374,762 km (0.08 R)
• M15: 11,628,542 km (0.114 R)
• M16: 12,312,503 km (0.115 R)
• M17: 13,366,869 km (0.101 R)
• M18: 13,938,333 km (0.05 R)
• M19: 15,271,848 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.8

Radius: 11

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.24 AU - 6.16 AU

Year: 7539 Days

Day: 5.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,287,871 km

• M1: 137,181 km (0.097 R)
• M2: 483,201 km (0.077 R)
• M3: 909,555 km (0.064 R)
• M4: 1,591,273 km (0.089 R)
• M5: 2,520,724 km (0.087 R)
• M6: 3,253,604 km (0.078 R)
• M7: 4,099,580 km (0.082 R)
• M8: 5,363,084 km (0.102 R)
• M9: 9,655,495 km (0.049 R)
• M10: 10,125,681 km (0.077 R)
• M11: 13,856,952 km (0.062 R)
• M12: 17,712,238 km (0.092 R)
• M13: 18,223,564 km (0.069 R)
• M14: 21,213,427 km (0.09 R)
• M15: 26,954,844 km (0.103 R)
• M16: 28,755,404 km (0.119 R)
• M17: 29,999,609 km (0.05 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.9

Radius: 10.5

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.94 AU - 5.96 AU

Year: 9228 Days

Day: 9.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,287,871 km

• M1: 130,599 km (0.033 R)
• M2: 927,656 km (0.113 R)
• M3: 1,332,169 km (0.059 R)
• M4: 1,690,456 km (0.1 R)
• M5: 2,558,273 km (0.113 R)
• M6: 3,533,053 km (0.064 R)
• M7: 4,162,710 km (0.084 R)
• M8: 5,046,834 km (0.106 R)
• M9: 6,632,870 km (0.077 R)
• M10: 7,454,462 km (0.102 R)
• M11: 8,528,126 km (0.041 R)
• M12: 9,579,948 km (0.12 R)
• M13: 10,759,827 km (0.116 R)
• M14: 11,158,804 km (0.12 R)
• M15: 12,561,135 km (0.106 R)
• M16: 19,291,094 km (0.09 R)
• M17: 20,146,944 km (0.087 R)
• M18: 20,482,791 km (0.101 R)
• M19: 21,443,060 km (0.034 R)
• M20: 25,586,173 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.1

Radius: 3.3

Gravity: 31.78 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.12 AU - 7.8 AU

Year: 10440 Days

Day: 23.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 39,287,871 km

• M1: 40,990 km (0.05 R)
• M2: 155,731 km (0.108 R)
• M3: 354,996 km (0.042 R)
• M4: 524,789 km (0.112 R)
• M5: 669,151 km (0.098 R)
• M6: 949,498 km (0.095 R)
• M7: 1,351,318 km (0.089 R)
• M8: 1,464,264 km (0.103 R)
• M9: 1,570,030 km (0.094 R)
• M10: 1,811,780 km (0.034 R)
• M11: 2,298,272 km (0.114 R)
• M12: 2,478,238 km (0.05 R)
• M13: 3,617,426 km (0.086 R)
• M14: 3,762,386 km (0.034 R)
• M15: 4,490,778 km (0.11 R)
• M16: 4,658,328 km (0.107 R)
• M17: 5,720,174 km (0.111 R)
• M18: 5,917,194 km (0.106 R)
• M19: 8,603,374 km (0.092 R)
• M20: 9,901,434 km (0.096 R)
• M21: 10,281,263 km (0.049 R)
• M22: 10,819,217 km (0.077 R)
• M23: 13,445,109 km (0.111 R)
• M24: 15,880,412 km (0.113 R)
• M25: 16,139,067 km (0.081 R)
• M26: 17,337,496 km (0.097 R)
• M27: 17,888,764 km (0.111 R)
• M28: 22,481,867 km (0.102 R)
• M29: 24,917,171 km (0.104 R)
• M30: 26,063,839 km (0.102 R)
• M31: 29,035,152 km (0.118 R)
• M32: 30,403,224 km (0.109 R)
• M33: 32,431,173 km (0.119 R)
• M34: 33,690,338 km (0.116 R)
• M35: 34,331,963 km (0.088 R)
• M36: 34,655,693 km (0.083 R)
• M37: 37,662,461 km (0.039 R)
• M38: 38,818,852 km (0.107 R)
• M39: 39,170,258 km (0.069 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: 454 - 16,424 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit