🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.87 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.71 AU - 1.77 AU

Year: 879 Days

Day: 22.8 Hours

Environment

Temp: -66 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.29 AU - 2.65 AU

Year: 1486 Days

Day: 16 Hours

Environment

Temp: -104 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.58 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.4

Radius: 8.3

Gravity: 8.18 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.1 AU - 5.27 AU

Year: 3876 Days

Day: 5.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,295,313 km

• M1: 103,223 km (0.066 R)
• M2: 411,693 km (0.097 R)
• M3: 1,062,594 km (0.088 R)
• M4: 1,470,397 km (0.082 R)
• M5: 2,100,803 km (0.102 R)
• M6: 2,417,202 km (0.115 R)
• M7: 3,602,616 km (0.116 R)
• M8: 4,838,294 km (0.079 R)
• M9: 7,578,179 km (0.076 R)
• M10: 12,690,537 km (0.117 R)
• M11: 16,470,127 km (0.118 R)
• M12: 17,261,051 km (0.036 R)
• M13: 17,724,206 km (0.046 R)
• M14: 18,255,279 km (0.094 R)
• M15: 19,102,152 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.5

Radius: 10.6

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 5.74 AU - 8.08 AU

Year: 6955 Days

Day: 12.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,295,313 km

• M1: 131,796 km (0.064 R)
• M2: 647,759 km (0.096 R)
• M3: 1,366,577 km (0.118 R)
• M4: 2,538,676 km (0.097 R)
• M5: 3,123,005 km (0.084 R)
• M6: 3,505,826 km (0.112 R)
• M7: 4,285,530 km (0.107 R)
• M8: 7,247,718 km (0.07 R)
• M9: 7,760,539 km (0.12 R)
• M10: 8,770,774 km (0.111 R)
• M11: 10,349,181 km (0.054 R)
• M12: 10,949,068 km (0.093 R)
• M13: 11,414,018 km (0.107 R)
• M14: 13,060,044 km (0.117 R)
• M15: 13,879,990 km (0.085 R)
• M16: 14,671,811 km (0.052 R)
• M17: 16,079,976 km (0.102 R)
• M18: 18,648,571 km (0.094 R)
• M19: 23,888,686 km (0.118 R)
• M20: 25,382,271 km (0.107 R)
• M21: 25,923,965 km (0.079 R)
• M22: 28,264,423 km (0.067 R)
• M23: 29,734,522 km (0.08 R)
• M24: 33,794,309 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.5

Radius: 13.8

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.44 AU - 9.02 AU

Year: 9040 Days

Day: 7 Hours

Environment

Temp: -167 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 62,295,313 km

• M1: 171,888 km (0.117 R)
• M2: 664,514 km (0.114 R)
• M3: 2,169,768 km (0.115 R)
• M4: 2,797,779 km (0.119 R)
• M5: 3,927,243 km (0.12 R)
• M6: 4,365,415 km (0.11 R)
• M7: 4,867,017 km (0.1 R)
• M8: 5,743,212 km (0.092 R)
• M9: 6,993,551 km (0.06 R)
• M10: 8,462,901 km (0.105 R)
• M11: 9,058,151 km (0.069 R)
• M12: 10,748,158 km (0.091 R)
• M13: 12,062,076 km (0.111 R)
• M14: 13,977,079 km (0.111 R)
• M15: 15,272,596 km (0.071 R)
• M16: 15,881,011 km (0.111 R)
• M17: 17,074,503 km (0.074 R)
• M18: 19,247,412 km (0.088 R)
• M19: 20,037,737 km (0.109 R)
• M20: 22,800,211 km (0.117 R)
• M21: 24,962,499 km (0.065 R)
• M22: 26,189,202 km (0.073 R)
• M23: 29,173,230 km (0.111 R)
• M24: 30,534,122 km (0.12 R)
• M25: 31,176,346 km (0.12 R)
• M26: 31,609,432 km (0.083 R)
• M27: 32,156,511 km (0.06 R)
• M28: 33,835,598 km (0.072 R)
• M29: 38,350,162 km (0.116 R)
• M30: 43,251,437 km (0.067 R)
• M31: 47,690,305 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222

Radius: 3.8

Gravity: 15.37 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 10.96 AU - 12.92 AU

Year: 15797 Days

Day: 16.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,295,313 km

• M1: 47,273 km (0.084 R)
• M2: 216,618 km (0.102 R)
• M3: 363,074 km (0.075 R)
• M4: 813,364 km (0.083 R)
• M5: 1,112,859 km (0.095 R)
• M6: 1,607,130 km (0.11 R)
• M7: 2,381,000 km (0.09 R)
• M8: 3,121,958 km (0.107 R)
• M9: 3,305,365 km (0.057 R)
• M10: 3,423,697 km (0.12 R)
• M11: 5,724,662 km (0.108 R)
• M12: 7,388,788 km (0.116 R)
• M13: 9,683,321 km (0.039 R)
• M14: 11,415,963 km (0.065 R)
• M15: 13,404,717 km (0.117 R)
• M16: 14,958,889 km (0.099 R)
• M17: 18,792,485 km (0.069 R)
• M18: 22,125,974 km (0.074 R)
• M19: 24,464,937 km (0.12 R)
• M20: 27,735,296 km (0.113 R)
• M21: 36,279,129 km (0.105 R)
• M22: 42,421,917 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.1

Radius: 4.3

Gravity: 9.9 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 16.06 AU - 19.46 AU

Year: 28657 Days

Day: 19.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,295,313 km

• M1: 55,501 km (0.119 R)
• M2: 213,476 km (0.097 R)
• M3: 529,277 km (0.11 R)
• M4: 762,500 km (0.116 R)
• M5: 1,134,849 km (0.065 R)
• M6: 1,333,815 km (0.107 R)
• M7: 1,802,056 km (0.104 R)
• M8: 2,290,194 km (0.117 R)
• M9: 2,521,472 km (0.113 R)
• M10: 3,006,169 km (0.106 R)
• M11: 3,155,318 km (0.09 R)
• M12: 3,388,541 km (0.109 R)
• M13: 4,797,903 km (0.06 R)
• M14: 5,283,498 km (0.102 R)
• M15: 6,893,919 km (0.083 R)
• M16: 7,331,492 km (0.093 R)
• M17: 8,069,459 km (0.089 R)
• M18: 9,425,115 km (0.101 R)
• M19: 9,638,142 km (0.089 R)
• M20: 10,809,344 km (0.098 R)
• M21: 11,948,083 km (0.096 R)
• M22: 12,134,930 km (0.084 R)
• M23: 12,514,460 km (0.049 R)
• M24: 13,230,585 km (0.098 R)
• M25: 21,129,054 km (0.116 R)
• M26: 21,770,529 km (0.064 R)
• M27: 23,285,058 km (0.09 R)
• M28: 25,071,406 km (0.073 R)
• M29: 27,268,401 km (0.038 R)
• M30: 33,253,961 km (0.103 R)
• M31: 42,469,489 km (0.096 R)
• M32: 48,996,145 km (0.078 R)
• M33: 52,914,113 km (0.087 R)
• M34: 56,509,249 km (0.118 R)
• M35: 58,277,047 km (0.099 R)
• M36: 61,366,393 km (0.09 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 17,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit