🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.7

Radius: 12.6

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.87 AU - 0.89 AU

Year: 550 Days

Day: 12.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,952,039 km

• M1: 156,629 km (0.115 R)
• M2: 793,766 km (0.11 R)
• M3: 1,337,854 km (0.102 R)
• M4: 2,063,553 km (0.09 R)
• M5: 2,808,251 km (0.088 R)
• M6: 3,293,996 km (0.076 R)
• M7: 4,048,268 km (0.098 R)
• M8: 4,816,303 km (0.071 R)
• M9: 5,252,980 km (0.112 R)
• M10: 5,882,487 km (0.055 R)
• M11: 6,501,673 km (0.107 R)
• M12: 7,271,504 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.7

Radius: 11.6

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.25 AU - 1.57 AU

Year: 1116 Days

Day: 11.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,952,039 km

• M1: 146,008 km (0.063 R)
• M2: 672,891 km (0.106 R)
• M3: 1,045,240 km (0.108 R)
• M4: 1,675,945 km (0.088 R)
• M5: 2,639,056 km (0.104 R)
• M6: 3,115,824 km (0.08 R)
• M7: 4,388,005 km (0.103 R)
• M8: 4,855,199 km (0.116 R)
• M9: 5,748,747 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.7

Radius: 10.6

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.17 AU - 1.69 AU

Year: 1140 Days

Day: 8.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,952,039 km

• M1: 132,245 km (0.09 R)
• M2: 585,825 km (0.087 R)
• M3: 1,085,931 km (0.084 R)
• M4: 1,419,983 km (0.104 R)
• M5: 1,927,419 km (0.093 R)
• M6: 2,371,126 km (0.085 R)
• M7: 3,451,672 km (0.072 R)
• M8: 3,825,218 km (0.077 R)
• M9: 4,242,446 km (0.107 R)
• M10: 4,618,984 km (0.116 R)
• M11: 4,962,161 km (0.108 R)
• M12: 6,010,842 km (0.095 R)
• M13: 6,942,239 km (0.113 R)
• M14: 7,992,715 km (0.085 R)
• M15: 8,569,564 km (0.083 R)
• M16: 9,315,310 km (0.091 R)
• M17: 9,718,626 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.4

Radius: 9.9

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.78 AU - 2.54 AU

Year: 2117 Days

Day: 7.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,952,039 km

• M1: 213,626 km (0.08 R)
• M2: 828,922 km (0.111 R)
• M3: 2,312,484 km (0.103 R)
• M4: 2,870,334 km (0.112 R)
• M5: 3,197,804 km (0.059 R)
• M6: 3,515,550 km (0.114 R)
• M7: 4,118,429 km (0.095 R)
• M8: 5,274,671 km (0.116 R)
• M9: 7,325,209 km (0.113 R)
• M10: 8,496,710 km (0.043 R)
• M11: 10,175,797 km (0.083 R)
• M12: 11,787,863 km (0.063 R)
• M13: 12,634,288 km (0.11 R)
• M14: 16,135,028 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.5

Radius: 8.7

Gravity: 12.24 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.18 AU - 3.38 AU

Year: 3961 Days

Day: 9 Hours

Environment

Temp: -224 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,952,039 km

• M1: 108,159 km (0.077 R)
• M2: 432,637 km (0.094 R)
• M3: 810,072 km (0.036 R)
• M4: 1,188,705 km (0.053 R)
• M5: 1,504,655 km (0.11 R)
• M6: 2,341,356 km (0.096 R)
• M7: 3,238,644 km (0.104 R)
• M8: 4,229,880 km (0.089 R)
• M9: 6,573,480 km (0.115 R)
• M10: 7,787,018 km (0.089 R)
• M11: 8,260,046 km (0.11 R)
• M12: 8,560,589 km (0.117 R)
• M13: 9,024,940 km (0.119 R)
• M14: 9,836,359 km (0.111 R)
• M15: 10,302,955 km (0.051 R)
• M16: 10,607,387 km (0.039 R)
• M17: 11,188,874 km (0.067 R)
• M18: 11,603,858 km (0.075 R)
• M19: 14,258,771 km (0.108 R)
• M20: 14,801,513 km (0.109 R)
• M21: 15,986,328 km (0.105 R)
• M22: 16,336,087 km (0.106 R)
• M23: 19,190,116 km (0.105 R)
• M24: 20,942,206 km (0.118 R)
• M25: 23,167,474 km (0.104 R)
• M26: 25,073,351 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.6

Radius: 12.2

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.93 AU - 3.69 AU

Year: 4016 Days

Day: 11.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,952,039 km

• M1: 152,440 km (0.094 R)
• M2: 591,211 km (0.096 R)
• M3: 989,440 km (0.083 R)
• M4: 1,966,614 km (0.118 R)
• M5: 2,485,120 km (0.101 R)
• M6: 3,349,048 km (0.099 R)
• M7: 3,954,171 km (0.084 R)
• M8: 5,257,019 km (0.102 R)
• M9: 5,734,535 km (0.078 R)
• M10: 7,424,094 km (0.092 R)
• M11: 9,999,870 km (0.119 R)
• M12: 10,735,742 km (0.096 R)
• M13: 13,121,977 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.8

Radius: 11.2

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.13 AU - 5.07 AU

Year: 5536 Days

Day: 9.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,952,039 km

• M1: 139,425 km (0.04 R)
• M2: 532,568 km (0.031 R)
• M3: 954,135 km (0.066 R)
• M4: 1,761,216 km (0.067 R)
• M5: 2,174,854 km (0.116 R)
• M6: 2,671,668 km (0.114 R)
• M7: 3,615,631 km (0.083 R)
• M8: 4,632,896 km (0.087 R)
• M9: 4,992,530 km (0.118 R)
• M10: 7,943,049 km (0.06 R)
• M11: 8,706,746 km (0.086 R)
• M12: 10,380,596 km (0.096 R)
• M13: 12,155,276 km (0.099 R)
• M14: 13,669,057 km (0.09 R)
• M15: 14,765,609 km (0.11 R)
• M16: 15,426,682 km (0.072 R)
• M17: 21,905,915 km (0.084 R)
• M18: 23,648,581 km (0.087 R)
• M19: 33,663,859 km (0.12 R)
• M20: 34,285,289 km (0.1 R)
• M21: 34,703,864 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.7

Radius: 12.7

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.39 AU - 5.89 AU

Year: 8932 Days

Day: 11.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,952,039 km

• M1: 158,723 km (0.101 R)
• M2: 587,321 km (0.045 R)
• M3: 1,277,416 km (0.053 R)
• M4: 1,807,890 km (0.084 R)
• M5: 2,469,711 km (0.066 R)
• M6: 2,905,789 km (0.058 R)
• M7: 4,385,761 km (0.111 R)
• M8: 6,429,268 km (0.105 R)
• M9: 7,263,874 km (0.105 R)
• M10: 9,218,819 km (0.112 R)
• M11: 10,318,214 km (0.093 R)
• M12: 11,218,793 km (0.069 R)
• M13: 14,331,476 km (0.063 R)
• M14: 16,736,411 km (0.1 R)
• M15: 19,166,928 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 820.1

Radius: 4.7

Gravity: 37.13 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.21 AU - 9.71 AU

Year: 16409 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 41,952,039 km

• M1: 58,493 km (0.08 R)
• M2: 269,725 km (0.031 R)
• M3: 418,425 km (0.118 R)
• M4: 723,007 km (0.113 R)
• M5: 919,279 km (0.112 R)
• M6: 1,190,649 km (0.067 R)
• M7: 2,145,832 km (0.086 R)
• M8: 2,624,096 km (0.11 R)
• M9: 2,790,449 km (0.094 R)
• M10: 3,671,281 km (0.078 R)
• M11: 4,518,903 km (0.112 R)
• M12: 4,970,389 km (0.115 R)
• M13: 7,310,549 km (0.073 R)
• M14: 7,688,732 km (0.081 R)
• M15: 9,278,808 km (0.04 R)
• M16: 9,443,515 km (0.045 R)
• M17: 10,413,508 km (0.11 R)
• M18: 14,515,182 km (0.112 R)
• M19: 15,188,073 km (0.103 R)
• M20: 15,340,364 km (0.1 R)
• M21: 15,570,745 km (0.094 R)
• M22: 16,595,789 km (0.114 R)
• M23: 18,692,104 km (0.095 R)
• M24: 24,954,870 km (0.102 R)
• M25: 30,386,020 km (0.117 R)
• M26: 35,607,285 km (0.076 R)
• M27: 35,876,262 km (0.09 R)
• M28: 36,828,303 km (0.099 R)
• M29: 38,076,996 km (0.084 R)
• M30: 50,440,812 km (0.116 R)
• M31: 56,966,271 km (0.074 R)
• M32: 62,848,908 km (0.1 R)
• M33: 68,706,712 km (0.05 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95.9

Radius: 6.9

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 9.77 AU - 10.73 AU

Year: 21883 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,952,039 km

• M1: 94,396 km (0.088 R)
• M2: 359,633 km (0.076 R)
• M3: 909,854 km (0.096 R)
• M4: 3,299,680 km (0.071 R)
• M5: 4,862,080 km (0.07 R)
• M6: 6,248,404 km (0.079 R)
• M7: 10,504,613 km (0.06 R)
• M8: 11,215,801 km (0.074 R)
• M9: 17,677,532 km (0.104 R)
• M10: 18,755,833 km (0.105 R)
• M11: 19,199,092 km (0.116 R)
• M12: 20,260,788 km (0.097 R)
• M13: 21,201,459 km (0.095 R)
• M14: 21,844,431 km (0.084 R)
• M15: 23,509,006 km (0.063 R)
• M16: 24,988,828 km (0.103 R)
• M17: 26,253,379 km (0.032 R)
• M18: 34,417,234 km (0.091 R)
• M19: 35,305,097 km (0.112 R)
• M20: 38,414,340 km (0.057 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 538 - 14,493 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit