🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.48 AU - 0.58 AU

Year: 249 Days

Day: 12.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 57.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,993,882 km

• M1: 174,581 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.8

Radius: 8

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.76 AU - 1.24 AU

Year: 646 Days

Day: 11.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,993,882 km

• M1: 99,483 km (0.046 R)
• M2: 425,307 km (0.115 R)
• M3: 715,377 km (0.114 R)
• M4: 1,030,131 km (0.087 R)
• M5: 1,517,072 km (0.067 R)
• M6: 1,956,740 km (0.046 R)
• M7: 2,728,366 km (0.115 R)
• M8: 3,634,031 km (0.062 R)
• M9: 4,163,309 km (0.076 R)
• M10: 7,322,068 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.7

Radius: 12.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.45 AU - 1.65 AU

Year: 1246 Days

Day: 11.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,993,882 km

• M1: 156,928 km (0.101 R)
• M2: 551,717 km (0.054 R)
• M3: 987,047 km (0.105 R)
• M4: 1,515,726 km (0.111 R)
• M5: 2,163,036 km (0.036 R)
• M6: 2,685,132 km (0.105 R)
• M7: 3,571,200 km (0.05 R)
• M8: 4,305,876 km (0.09 R)
• M9: 4,998,813 km (0.096 R)
• M10: 5,575,812 km (0.09 R)
• M11: 6,096,712 km (0.083 R)
• M12: 6,884,943 km (0.103 R)
• M13: 7,508,467 km (0.095 R)
• M14: 7,976,558 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.9

Radius: 10.4

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.54 AU - 1.9 AU

Year: 1456 Days

Day: 5.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,993,882 km

• M1: 130,599 km (0.086 R)
• M2: 982,260 km (0.107 R)
• M3: 1,390,961 km (0.096 R)
• M4: 1,912,908 km (0.026 R)
• M5: 2,309,492 km (0.094 R)
• M6: 4,648,903 km (0.107 R)
• M7: 5,801,854 km (0.072 R)
• M8: 6,232,696 km (0.095 R)
• M9: 6,998,488 km (0.118 R)
• M10: 7,558,881 km (0.099 R)
• M11: 8,716,769 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.3

Radius: 3.1

Gravity: 27.09 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.68 AU - 9.3 AU

Year: 14583 Days

Day: 15.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,993,882 km

• M1: 44,131 km (0.066 R)
• M2: 311,912 km (0.088 R)
• M3: 567,275 km (0.099 R)
• M4: 1,115,252 km (0.12 R)
• M5: 1,700,629 km (0.118 R)
• M6: 5,127,617 km (0.085 R)
• M7: 6,717,244 km (0.114 R)
• M8: 7,541,378 km (0.065 R)
• M9: 9,340,442 km (0.087 R)
• M10: 12,921,516 km (0.068 R)
• M11: 13,879,840 km (0.117 R)
• M12: 14,502,317 km (0.078 R)
• M13: 15,936,811 km (0.057 R)
• M14: 16,688,241 km (0.058 R)
• M15: 20,166,391 km (0.107 R)
• M16: 20,562,527 km (0.109 R)
• M17: 25,915,138 km (0.118 R)
• M18: 32,233,404 km (0.106 R)
• M19: 41,638,623 km (0.044 R)
• M20: 43,059,503 km (0.05 R)
• M21: 43,980,428 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 850.5

Radius: 3.8

Gravity: 58.9 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 9.64 AU - 10.62 AU

Year: 20818 Days

Day: 15.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,993,882 km

• M1: 51,462 km (0.099 R)
• M2: 324,927 km (0.107 R)
• M3: 536,907 km (0.116 R)
• M4: 749,485 km (0.091 R)
• M5: 893,249 km (0.115 R)
• M6: 1,222,364 km (0.052 R)
• M7: 1,505,703 km (0.074 R)
• M8: 2,313,830 km (0.116 R)
• M9: 2,721,335 km (0.091 R)
• M10: 3,147,090 km (0.055 R)
• M11: 3,554,745 km (0.072 R)
• M12: 3,866,806 km (0.06 R)
• M13: 4,334,000 km (0.119 R)
• M14: 5,419,781 km (0.118 R)
• M15: 6,537,128 km (0.098 R)
• M16: 6,862,204 km (0.065 R)
• M17: 9,802,999 km (0.028 R)
• M18: 11,314,386 km (0.11 R)
• M19: 15,188,073 km (0.073 R)
• M20: 17,819,500 km (0.076 R)
• M21: 17,999,017 km (0.075 R)
• M22: 21,138,030 km (0.098 R)
• M23: 26,326,532 km (0.041 R)
• M24: 29,212,724 km (0.078 R)
• M25: 31,380,098 km (0.079 R)
• M26: 35,320,805 km (0.063 R)
• M27: 38,671,050 km (0.096 R)
• M28: 45,491,217 km (0.045 R)
• M29: 45,994,913 km (0.061 R)
• M30: 49,625,204 km (0.05 R)
• M31: 58,828,914 km (0.095 R)
• M32: 61,448,522 km (0.108 R)
• M33: 63,098,736 km (0.113 R)
• M34: 66,702,848 km (0.1 R)
• M35: 77,854,023 km (0.079 R)
• M36: 79,299,288 km (0.095 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 17,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit