🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.44 AU - 0.6 AU

Year: 246 Days

Day: 24.1 Hours

Environment

Temp: -109 °C

Axial Tilt: 77 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 17.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.1

Radius: 11.6

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.81 AU - 1.17 AU

Year: 646 Days

Day: 8.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 150.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 93,295,921 km

• M1: 144,960 km (0.071 R)
• M2: 604,974 km (0.097 R)
• M3: 1,019,061 km (0.087 R)
• M4: 1,431,502 km (0.11 R)
• M5: 1,850,526 km (0.113 R)
• M6: 2,270,746 km (0.057 R)
• M7: 2,720,437 km (0.071 R)
• M8: 3,127,792 km (0.06 R)
• M9: 4,051,858 km (0.093 R)
• M10: 4,553,460 km (0.107 R)
• M11: 5,951,901 km (0.096 R)
• M12: 7,142,102 km (0.112 R)
• M13: 8,336,042 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.7

Radius: 9.1

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.54 AU - 1.88 AU

Year: 1467 Days

Day: 12.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 135.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 93,295,921 km

• M1: 113,844 km (0.116 R)
• M2: 462,407 km (0.104 R)
• M3: 961,765 km (0.101 R)
• M4: 2,223,623 km (0.106 R)
• M5: 2,854,028 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.5

Radius: 14.8

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.24 AU - 3.22 AU

Year: 2959 Days

Day: 6.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 93,295,921 km

• M1: 184,005 km (0.097 R)
• M2: 870,061 km (0.101 R)
• M3: 1,436,588 km (0.085 R)
• M4: 2,074,324 km (0.112 R)
• M5: 2,638,158 km (0.094 R)
• M6: 3,212,764 km (0.102 R)
• M7: 3,688,186 km (0.077 R)
• M8: 4,210,881 km (0.101 R)
• M9: 5,151,253 km (0.119 R)
• M10: 6,001,119 km (0.099 R)
• M11: 7,035,887 km (0.107 R)
• M12: 9,008,933 km (0.103 R)
• M13: 9,690,352 km (0.114 R)
• M14: 10,365,337 km (0.119 R)
• M15: 11,854,135 km (0.11 R)
• M16: 12,626,808 km (0.044 R)
• M17: 14,273,133 km (0.044 R)
• M18: 14,887,083 km (0.05 R)
• M19: 18,106,877 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.1

Radius: 9.3

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.57 AU - 4.29 AU

Year: 5111 Days

Day: 9.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 93,295,921 km

• M1: 115,789 km (0.064 R)
• M2: 1,171,351 km (0.063 R)
• M3: 2,595,373 km (0.109 R)
• M4: 3,027,711 km (0.038 R)
• M5: 3,486,827 km (0.068 R)
• M6: 4,569,766 km (0.118 R)
• M7: 6,773,792 km (0.097 R)
• M8: 7,074,932 km (0.079 R)
• M9: 7,740,044 km (0.04 R)
• M10: 8,678,023 km (0.07 R)
• M11: 9,648,015 km (0.083 R)
• M12: 11,236,146 km (0.111 R)
• M13: 11,802,225 km (0.033 R)
• M14: 13,094,152 km (0.104 R)
• M15: 13,721,117 km (0.034 R)
• M16: 18,619,101 km (0.086 R)
• M17: 20,021,431 km (0.076 R)
• M18: 25,524,538 km (0.101 R)
• M19: 25,929,051 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.4

Radius: 5.3

Gravity: 17.49 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.5 AU - 7.4 AU

Year: 10746 Days

Day: 23.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 93,295,921 km

• M1: 65,973 km (0.068 R)
• M2: 260,599 km (0.076 R)
• M3: 425,456 km (0.064 R)
• M4: 902,374 km (0.113 R)
• M5: 1,084,734 km (0.052 R)
• M6: 1,666,670 km (0.087 R)
• M7: 2,921,347 km (0.075 R)
• M8: 3,444,042 km (0.104 R)
• M9: 4,272,366 km (0.115 R)
• M10: 4,975,326 km (0.118 R)
• M11: 11,040,472 km (0.12 R)
• M12: 11,521,430 km (0.08 R)
• M13: 13,225,649 km (0.064 R)
• M14: 15,352,481 km (0.107 R)
• M15: 16,843,972 km (0.094 R)
• M16: 18,503,761 km (0.063 R)
• M17: 22,908,969 km (0.12 R)
• M18: 26,613,760 km (0.109 R)
• M19: 33,606,114 km (0.113 R)
• M20: 40,712,462 km (0.067 R)
• M21: 43,947,217 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 828.5

Radius: 5

Gravity: 33.14 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 6.28 AU - 8.06 AU

Year: 12595 Days

Day: 15.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 93,295,921 km

• M1: 62,233 km (0.086 R)
• M2: 222,003 km (0.079 R)
• M3: 392,096 km (0.115 R)
• M4: 589,864 km (0.091 R)
• M5: 991,834 km (0.115 R)
• M6: 1,766,900 km (0.106 R)
• M7: 2,161,689 km (0.073 R)
• M8: 2,505,465 km (0.114 R)
• M9: 2,908,183 km (0.105 R)
• M10: 3,757,001 km (0.089 R)
• M11: 4,376,486 km (0.103 R)
• M12: 4,629,605 km (0.112 R)
• M13: 9,746,900 km (0.101 R)
• M14: 10,344,094 km (0.088 R)
• M15: 10,965,374 km (0.086 R)
• M16: 11,197,251 km (0.109 R)
• M17: 11,611,039 km (0.112 R)
• M18: 14,939,591 km (0.1 R)
• M19: 15,224,725 km (0.095 R)
• M20: 18,279,513 km (0.05 R)
• M21: 19,693,064 km (0.098 R)
• M22: 20,822,079 km (0.084 R)
• M23: 20,999,502 km (0.084 R)
• M24: 25,062,879 km (0.104 R)
• M25: 27,650,773 km (0.075 R)
• M26: 27,972,707 km (0.11 R)
• M27: 29,397,178 km (0.048 R)
• M28: 34,825,786 km (0.099 R)
• M29: 36,730,765 km (0.091 R)
• M30: 39,512,986 km (0.106 R)
• M31: 41,443,697 km (0.075 R)
• M32: 43,581,300 km (0.074 R)
• M33: 54,364,913 km (0.113 R)
• M34: 55,890,363 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.2

Radius: 4.5

Gravity: 42.73 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 10.34 AU - 11.8 AU

Year: 24162 Days

Day: 23.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 93,295,921 km

• M1: 59,091 km (0.113 R)
• M2: 409,898 km (0.057 R)
• M3: 726,298 km (0.113 R)
• M4: 1,444,068 km (0.045 R)
• M5: 2,306,500 km (0.041 R)
• M6: 2,449,665 km (0.079 R)
• M7: 3,467,978 km (0.112 R)
• M8: 4,894,693 km (0.039 R)
• M9: 5,418,435 km (0.05 R)
• M10: 6,388,577 km (0.063 R)
• M11: 7,063,114 km (0.096 R)
• M12: 8,781,096 km (0.077 R)
• M13: 13,241,955 km (0.097 R)
• M14: 13,702,866 km (0.115 R)
• M15: 14,494,538 km (0.078 R)
• M16: 15,653,472 km (0.089 R)
• M17: 16,168,687 km (0.091 R)
• M18: 16,694,973 km (0.114 R)
• M19: 17,874,402 km (0.04 R)
• M20: 18,818,664 km (0.066 R)
• M21: 23,370,329 km (0.076 R)
• M22: 29,503,094 km (0.08 R)
• M23: 38,921,476 km (0.108 R)
• M24: 39,707,164 km (0.073 R)
• M25: 42,457,521 km (0.1 R)
• M26: 43,963,673 km (0.027 R)
• M27: 44,987,371 km (0.117 R)
• M28: 49,975,413 km (0.098 R)
• M29: 52,984,873 km (0.063 R)
• M30: 60,402,235 km (0.116 R)
• M31: 65,787,309 km (0.078 R)
• M32: 66,677,566 km (0.085 R)
• M33: 87,276,445 km (0.083 R)
• M34: 87,544,225 km (0.092 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 269 - 16,878 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit