🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.8

Radius: 11.5

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.6 AU - 0.94 AU

Year: 436 Days

Day: 14 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,887,606 km

• M1: 143,016 km (0.078 R)
• M2: 532,568 km (0.03 R)
• M3: 925,113 km (0.108 R)
• M4: 1,392,158 km (0.042 R)
• M5: 1,866,682 km (0.097 R)
• M6: 2,276,880 km (0.11 R)
• M7: 3,049,553 km (0.106 R)
• M8: 3,539,336 km (0.116 R)
• M9: 4,188,142 km (0.109 R)
• M10: 4,736,568 km (0.052 R)
• M11: 5,590,921 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.3

Radius: 9.1

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1 AU - 1.4 AU

Year: 849 Days

Day: 8.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,887,606 km

• M1: 113,096 km (0.09 R)
• M2: 407,056 km (0.111 R)
• M3: 814,710 km (0.113 R)
• M4: 1,098,946 km (0.102 R)
• M5: 1,414,298 km (0.114 R)
• M6: 1,755,980 km (0.118 R)
• M7: 2,263,565 km (0.093 R)
• M8: 3,433,570 km (0.109 R)
• M9: 3,773,307 km (0.115 R)
• M10: 4,135,484 km (0.117 R)
• M11: 4,487,936 km (0.03 R)
• M12: 5,326,881 km (0.12 R)
• M13: 5,628,769 km (0.085 R)
• M14: 5,941,878 km (0.118 R)
• M15: 6,349,831 km (0.105 R)
• M16: 6,885,990 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.8

Radius: 11.2

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.96 AU - 1.54 AU

Year: 902 Days

Day: 10.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,887,606 km

• M1: 139,425 km (0.12 R)
• M2: 633,697 km (0.084 R)
• M3: 1,072,168 km (0.033 R)
• M4: 1,582,895 km (0.112 R)
• M5: 2,091,677 km (0.08 R)
• M6: 2,588,492 km (0.112 R)
• M7: 3,006,020 km (0.039 R)
• M8: 3,403,202 km (0.115 R)
• M9: 3,835,390 km (0.084 R)
• M10: 4,927,155 km (0.051 R)
• M11: 6,176,148 km (0.069 R)
• M12: 7,380,261 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.1

Radius: 12.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.78 AU - 2 AU

Year: 1678 Days

Day: 11 Hours

Environment

Temp: -194 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,887,606 km

• M1: 153,039 km (0.083 R)
• M2: 537,505 km (0.087 R)
• M3: 954,434 km (0.101 R)
• M4: 1,442,722 km (0.113 R)
• M5: 2,662,842 km (0.107 R)
• M6: 3,386,297 km (0.117 R)
• M7: 4,003,538 km (0.104 R)
• M8: 4,823,783 km (0.061 R)
• M9: 5,244,602 km (0.109 R)
• M10: 8,096,237 km (0.081 R)
• M11: 8,776,757 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.8

Radius: 11.5

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.68 AU - 2.9 AU

Year: 3009 Days

Day: 12.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,887,606 km

• M1: 145,260 km (0.095 R)
• M2: 512,672 km (0.112 R)
• M3: 1,244,205 km (0.055 R)
• M4: 1,966,165 km (0.104 R)
• M5: 3,185,238 km (0.087 R)
• M6: 5,708,954 km (0.107 R)
• M7: 6,491,500 km (0.064 R)
• M8: 7,222,286 km (0.115 R)
• M9: 9,199,970 km (0.07 R)
• M10: 13,078,145 km (0.102 R)
• M11: 14,005,203 km (0.057 R)
• M12: 16,093,589 km (0.118 R)
• M13: 16,620,024 km (0.097 R)
• M14: 17,596,450 km (0.104 R)
• M15: 18,042,550 km (0.095 R)
• M16: 18,899,297 km (0.08 R)
• M17: 19,367,240 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.7

Radius: 14

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.98 AU - 3.04 AU

Year: 3372 Days

Day: 9.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 171.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,887,606 km

• M1: 174,282 km (0.06 R)
• M2: 639,082 km (0.039 R)
• M3: 1,196,633 km (0.102 R)
• M4: 1,782,758 km (0.11 R)
• M5: 2,558,572 km (0.107 R)
• M6: 3,369,243 km (0.111 R)
• M7: 3,993,964 km (0.063 R)
• M8: 4,474,323 km (0.11 R)
• M9: 7,032,297 km (0.109 R)
• M10: 7,486,775 km (0.11 R)
• M11: 8,488,482 km (0.078 R)
• M12: 9,504,850 km (0.108 R)
• M13: 10,522,565 km (0.117 R)
• M14: 14,834,574 km (0.1 R)
• M15: 15,635,820 km (0.091 R)
• M16: 16,099,124 km (0.091 R)
• M17: 17,544,389 km (0.063 R)
• M18: 18,554,923 km (0.116 R)
• M19: 19,016,433 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.7

Radius: 13.5

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.64 AU - 3.86 AU

Year: 4689 Days

Day: 14 Hours

Environment

Temp: -201 °C

Axial Tilt: 91.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 27,887,606 km

• M1: 173,833 km (0.057 R)
• M2: 712,086 km (0.087 R)
• M3: 1,180,327 km (0.028 R)
• M4: 1,794,875 km (0.075 R)
• M5: 2,584,453 km (0.114 R)
• M6: 3,070,048 km (0.087 R)
• M7: 3,531,707 km (0.067 R)
• M8: 4,016,852 km (0.09 R)
• M9: 4,596,993 km (0.054 R)
• M10: 5,806,492 km (0.118 R)
• M11: 6,232,995 km (0.042 R)
• M12: 6,779,177 km (0.03 R)
• M13: 8,612,499 km (0.093 R)
• M14: 10,222,920 km (0.04 R)
• M15: 11,639,911 km (0.109 R)
• M16: 12,520,743 km (0.108 R)
• M17: 14,917,600 km (0.113 R)
• M18: 15,605,302 km (0.073 R)
• M19: 16,374,085 km (0.089 R)
• M20: 17,542,894 km (0.096 R)
• M21: 18,309,283 km (0.078 R)
• M22: 18,964,971 km (0.102 R)
• M23: 21,168,847 km (0.093 R)
• M24: 23,081,455 km (0.065 R)
• M25: 29,776,858 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40.1

Radius: 3.7

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 7.17 AU - 11.45 AU

Year: 18342 Days

Day: 22.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,887,606 km

• M1: 47,273 km (0.098 R)
• M2: 225,145 km (0.049 R)
• M3: 575,952 km (0.099 R)
• M4: 1,411,007 km (0.096 R)
• M5: 1,854,714 km (0.106 R)
• M6: 2,064,899 km (0.11 R)
• M7: 2,183,231 km (0.091 R)
• M8: 3,568,208 km (0.11 R)
• M9: 4,405,807 km (0.097 R)
• M10: 5,422,175 km (0.044 R)
• M11: 11,697,955 km (0.108 R)
• M12: 14,624,089 km (0.092 R)
• M13: 16,488,977 km (0.108 R)
• M14: 19,410,025 km (0.068 R)
• M15: 19,939,302 km (0.045 R)
• M16: 20,342,468 km (0.083 R)
• M17: 21,374,394 km (0.085 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 19,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit