🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.56 AU - 0.66 AU

Year: 313 Days

Day: 46.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.3

Radius: 8.5

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.6 AU - 0.88 AU

Year: 418 Days

Day: 12.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,335,770 km

• M1: 105,915 km (0.082 R)
• M2: 372,798 km (0.112 R)
• M3: 752,627 km (0.039 R)
• M4: 1,047,783 km (0.087 R)
• M5: 1,356,105 km (0.05 R)
• M6: 1,697,786 km (0.08 R)
• M7: 2,310,240 km (0.081 R)
• M8: 2,602,853 km (0.051 R)
• M9: 3,529,911 km (0.108 R)
• M10: 3,834,941 km (0.083 R)
• M11: 4,338,787 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.7

Radius: 14.5

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.75 AU - 0.79 AU

Year: 443 Days

Day: 7.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 89,335,770 km

• M1: 180,864 km (0.05 R)
• M2: 653,892 km (0.073 R)
• M3: 1,710,502 km (0.069 R)
• M4: 2,647,284 km (0.085 R)
• M5: 3,404,249 km (0.071 R)
• M6: 4,482,551 km (0.115 R)
• M7: 4,964,405 km (0.085 R)
• M8: 5,595,260 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.6

Radius: 12.2

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.16 AU - 1.2 AU

Year: 841 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,335,770 km

• M1: 151,692 km (0.117 R)
• M2: 639,680 km (0.044 R)
• M3: 1,044,492 km (0.045 R)
• M4: 1,595,012 km (0.03 R)
• M5: 2,029,894 km (0.064 R)
• M6: 2,476,892 km (0.104 R)
• M7: 2,889,034 km (0.05 R)
• M8: 3,333,639 km (0.095 R)
• M9: 4,950,194 km (0.103 R)
• M10: 5,789,587 km (0.109 R)
• M11: 6,243,766 km (0.102 R)
• M12: 7,130,732 km (0.077 R)
• M13: 9,209,843 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.5

Radius: 8.6

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.2 AU - 1.4 AU

Year: 972 Days

Day: 12 Hours

Environment

Temp: -166 °C

Axial Tilt: 51.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,335,770 km

• M1: 106,962 km (0.075 R)
• M2: 401,371 km (0.109 R)
• M3: 944,711 km (0.103 R)
• M4: 1,253,630 km (0.059 R)
• M5: 1,537,866 km (0.066 R)
• M6: 1,846,786 km (0.12 R)
• M7: 2,509,055 km (0.074 R)
• M8: 3,099,817 km (0.1 R)
• M9: 3,688,186 km (0.099 R)
• M10: 4,247,682 km (0.109 R)
• M11: 4,753,024 km (0.111 R)
• M12: 5,181,921 km (0.093 R)
• M13: 5,595,858 km (0.099 R)
• M14: 7,700,401 km (0.104 R)
• M15: 8,266,479 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833

Radius: 11.4

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.1 AU - 1.83 AU

Year: 1157 Days

Day: 12.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,335,770 km

• M1: 141,819 km (0.092 R)
• M2: 887,415 km (0.076 R)
• M3: 1,243,308 km (0.11 R)
• M4: 1,929,513 km (0.03 R)
• M5: 2,521,323 km (0.113 R)
• M6: 2,921,347 km (0.105 R)
• M7: 4,313,804 km (0.104 R)
• M8: 4,717,868 km (0.115 R)
• M9: 5,087,076 km (0.11 R)
• M10: 5,753,085 km (0.075 R)
• M11: 6,429,417 km (0.1 R)
• M12: 8,409,046 km (0.039 R)
• M13: 10,211,401 km (0.106 R)
• M14: 10,832,382 km (0.099 R)
• M15: 11,409,231 km (0.1 R)
• M16: 11,793,399 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.5

Radius: 14.6

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.08 AU - 2.14 AU

Year: 2011 Days

Day: 7.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 175.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,335,770 km

• M1: 181,761 km (0.095 R)
• M2: 642,822 km (0.091 R)
• M3: 1,165,068 km (0.094 R)
• M4: 1,733,091 km (0.117 R)
• M5: 2,329,538 km (0.116 R)
• M6: 3,219,795 km (0.076 R)
• M7: 4,527,879 km (0.035 R)
• M8: 6,552,088 km (0.055 R)
• M9: 7,064,759 km (0.097 R)
• M10: 8,140,667 km (0.053 R)
• M11: 10,363,542 km (0.102 R)
• M12: 12,799,444 km (0.091 R)
• M13: 13,996,377 km (0.041 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.8

Radius: 12.3

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.49 AU - 3.81 AU

Year: 3668 Days

Day: 13.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 89,335,770 km

• M1: 153,039 km (0.059 R)
• M2: 542,891 km (0.106 R)
• M3: 1,378,993 km (0.114 R)
• M4: 2,039,617 km (0.082 R)
• M5: 2,612,876 km (0.051 R)
• M6: 3,652,881 km (0.112 R)
• M7: 5,677,688 km (0.08 R)
• M8: 6,200,682 km (0.084 R)
• M9: 7,012,999 km (0.062 R)
• M10: 7,685,142 km (0.045 R)
• M11: 8,585,123 km (0.083 R)
• M12: 9,594,459 km (0.032 R)
• M13: 10,423,381 km (0.044 R)
• M14: 11,254,547 km (0.082 R)
• M15: 13,298,652 km (0.09 R)
• M16: 14,972,802 km (0.086 R)
• M17: 20,631,491 km (0.12 R)
• M18: 21,521,748 km (0.044 R)
• M19: 22,366,078 km (0.028 R)
• M20: 23,232,400 km (0.05 R)
• M21: 24,497,848 km (0.11 R)
• M22: 25,496,115 km (0.092 R)
• M23: 26,842,196 km (0.115 R)
• M24: 27,328,389 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 233.3

Radius: 3.9

Gravity: 15.34 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 6.03 AU - 6.51 AU

Year: 10299 Days

Day: 18.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 89,335,770 km

• M1: 48,470 km (0.104 R)
• M2: 254,017 km (0.091 R)
• M3: 377,884 km (0.072 R)
• M4: 508,034 km (0.104 R)
• M5: 950,694 km (0.1 R)
• M6: 1,186,610 km (0.112 R)
• M7: 1,652,308 km (0.109 R)
• M8: 2,313,082 km (0.066 R)
• M9: 2,485,120 km (0.07 R)
• M10: 3,012,303 km (0.071 R)
• M11: 3,196,607 km (0.104 R)
• M12: 3,702,099 km (0.104 R)
• M13: 4,010,270 km (0.085 R)
• M14: 4,491,227 km (0.105 R)
• M15: 4,677,925 km (0.076 R)
• M16: 5,628,021 km (0.075 R)
• M17: 6,428,520 km (0.048 R)
• M18: 7,229,467 km (0.074 R)
• M19: 7,748,422 km (0.079 R)
• M20: 9,281,501 km (0.101 R)
• M21: 9,672,250 km (0.114 R)
• M22: 10,073,771 km (0.106 R)
• M23: 11,053,787 km (0.059 R)
• M24: 11,691,373 km (0.105 R)
• M25: 12,879,030 km (0.11 R)
• M26: 13,093,404 km (0.107 R)
• M27: 16,288,366 km (0.053 R)
• M28: 17,307,127 km (0.044 R)
• M29: 17,502,801 km (0.108 R)
• M30: 18,165,520 km (0.108 R)
• M31: 19,260,427 km (0.053 R)
• M32: 23,438,845 km (0.103 R)
• M33: 25,066,470 km (0.029 R)
• M34: 25,822,836 km (0.115 R)
• M35: 28,453,814 km (0.084 R)
• M36: 28,635,276 km (0.12 R)
• M37: 30,778,565 km (0.07 R)
• M38: 32,134,071 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789.2

Radius: 6

Gravity: 21.92 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.66 AU - 13.2 AU

Year: 23705 Days

Day: 22.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 89,335,770 km

• M1: 83,924 km (0.066 R)
• M2: 294,259 km (0.084 R)
• M3: 561,291 km (0.059 R)
• M4: 877,840 km (0.085 R)
• M5: 1,104,930 km (0.096 R)
• M6: 2,206,868 km (0.083 R)
• M7: 3,613,985 km (0.063 R)
• M8: 6,048,242 km (0.08 R)
• M9: 6,975,300 km (0.107 R)
• M10: 10,966,571 km (0.119 R)
• M11: 11,776,494 km (0.114 R)
• M12: 12,625,462 km (0.067 R)
• M13: 19,258,781 km (0.098 R)
• M14: 19,743,179 km (0.118 R)
• M15: 20,435,069 km (0.026 R)
• M16: 21,348,065 km (0.104 R)
• M17: 24,250,114 km (0.112 R)
• M18: 26,443,069 km (0.088 R)
• M19: 29,143,460 km (0.09 R)
• M20: 30,039,851 km (0.103 R)
• M21: 30,429,553 km (0.102 R)
• M22: 32,838,977 km (0.093 R)
• M23: 35,228,653 km (0.077 R)
• M24: 37,132,435 km (0.026 R)
• M25: 39,723,919 km (0.061 R)
• M26: 42,108,659 km (0.108 R)
• M27: 42,760,307 km (0.074 R)
• M28: 43,253,532 km (0.11 R)
• M29: 54,121,817 km (0.095 R)
• M30: 59,259,606 km (0.064 R)
• M31: 60,077,906 km (0.069 R)
• M32: 74,450,372 km (0.05 R)
• M33: 78,309,100 km (0.094 R)
• M34: 80,038,451 km (0.038 R)
• M35: 81,289,089 km (0.107 R)
• M36: 86,422,391 km (0.099 R)
• M37: 86,947,330 km (0.078 R)
• M38: 88,534,862 km (0.107 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 17,545 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit