🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.1

Radius: 8.6

Gravity: 11.03 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.12 AU - 1.42 AU

Year: 939 Days

Day: 13.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,932,786 km

• M1: 106,962 km (0.063 R)
• M2: 410,497 km (0.096 R)
• M3: 681,568 km (0.104 R)
• M4: 1,016,368 km (0.105 R)
• M5: 1,321,847 km (0.085 R)
• M6: 1,618,948 km (0.112 R)
• M7: 2,273,588 km (0.081 R)
• M8: 2,547,353 km (0.094 R)
• M9: 2,869,138 km (0.047 R)
• M10: 3,794,251 km (0.108 R)
• M11: 4,132,192 km (0.054 R)
• M12: 4,924,612 km (0.073 R)
• M13: 5,527,043 km (0.091 R)
• M14: 6,090,877 km (0.058 R)
• M15: 6,646,633 km (0.094 R)
• M16: 7,043,517 km (0.115 R)
• M17: 7,757,248 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.2

Radius: 11.9

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.39 AU - 1.87 AU

Year: 1365 Days

Day: 6.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,932,786 km

• M1: 148,700 km (0.087 R)
• M2: 555,158 km (0.099 R)
• M3: 1,205,460 km (0.098 R)
• M4: 1,735,784 km (0.078 R)
• M5: 2,130,274 km (0.047 R)
• M6: 2,995,548 km (0.095 R)
• M7: 3,539,785 km (0.103 R)
• M8: 4,408,649 km (0.06 R)
• M9: 4,846,522 km (0.045 R)
• M10: 5,233,682 km (0.111 R)
• M11: 5,939,484 km (0.077 R)
• M12: 6,921,744 km (0.117 R)
• M13: 7,490,066 km (0.094 R)
• M14: 8,580,485 km (0.098 R)
• M15: 9,033,617 km (0.114 R)
• M16: 10,877,261 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812

Radius: 8.7

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.68 AU - 2.04 AU

Year: 1664 Days

Day: 8.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 53.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,932,786 km

• M1: 108,608 km (0.119 R)
• M2: 395,088 km (0.083 R)
• M3: 707,149 km (0.111 R)
• M4: 1,061,696 km (0.073 R)
• M5: 1,354,010 km (0.042 R)
• M6: 1,660,237 km (0.038 R)
• M7: 2,351,379 km (0.06 R)
• M8: 2,871,382 km (0.103 R)
• M9: 3,416,367 km (0.112 R)
• M10: 3,740,246 km (0.104 R)
• M11: 4,732,828 km (0.071 R)
• M12: 5,268,388 km (0.095 R)
• M13: 5,585,685 km (0.081 R)
• M14: 6,012,189 km (0.066 R)
• M15: 6,485,965 km (0.06 R)
• M16: 7,147,188 km (0.072 R)
• M17: 7,910,735 km (0.07 R)
• M18: 8,665,307 km (0.067 R)
• M19: 9,108,416 km (0.083 R)
• M20: 10,779,275 km (0.059 R)
• M21: 11,516,642 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.6

Radius: 12.7

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.25 AU - 3.47 AU

Year: 3173 Days

Day: 10.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,932,786 km

• M1: 158,424 km (0.079 R)
• M2: 795,861 km (0.099 R)
• M3: 1,406,370 km (0.114 R)
• M4: 1,839,156 km (0.071 R)
• M5: 2,863,752 km (0.103 R)
• M6: 3,436,712 km (0.065 R)
• M7: 4,128,602 km (0.118 R)
• M8: 5,034,567 km (0.119 R)
• M9: 6,239,877 km (0.107 R)
• M10: 6,864,448 km (0.074 R)
• M11: 9,789,685 km (0.092 R)
• M12: 10,185,969 km (0.117 R)
• M13: 13,607,572 km (0.118 R)
• M14: 16,756,607 km (0.106 R)
• M15: 18,802,358 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.3

Radius: 14.4

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.74 AU - 4.18 AU

Year: 4222 Days

Day: 6.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,932,786 km

• M1: 179,218 km (0.05 R)
• M2: 996,621 km (0.108 R)
• M3: 1,516,324 km (0.112 R)
• M4: 2,445,626 km (0.115 R)
• M5: 2,913,119 km (0.118 R)
• M6: 3,669,785 km (0.098 R)
• M7: 4,137,877 km (0.042 R)
• M8: 5,195,684 km (0.103 R)
• M9: 6,369,728 km (0.11 R)
• M10: 7,142,700 km (0.088 R)
• M11: 10,074,519 km (0.108 R)
• M12: 11,462,937 km (0.081 R)
• M13: 12,337,336 km (0.073 R)
• M14: 13,635,547 km (0.109 R)
• M15: 15,280,525 km (0.09 R)
• M16: 16,124,257 km (0.117 R)
• M17: 17,110,256 km (0.12 R)
• M18: 17,732,434 km (0.092 R)
• M19: 20,689,236 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.2

Radius: 10.6

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.28 AU - 5.76 AU

Year: 7378 Days

Day: 11.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,932,786 km

• M1: 131,796 km (0.068 R)
• M2: 505,940 km (0.028 R)
• M3: 885,021 km (0.079 R)
• M4: 1,366,876 km (0.093 R)
• M5: 1,734,288 km (0.119 R)
• M6: 2,404,786 km (0.08 R)
• M7: 5,699,380 km (0.119 R)
• M8: 7,833,842 km (0.084 R)
• M9: 10,948,021 km (0.052 R)
• M10: 12,994,221 km (0.086 R)
• M11: 14,199,381 km (0.087 R)
• M12: 15,331,687 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.9

Radius: 4.6

Gravity: 41.58 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 6.49 AU - 6.83 AU

Year: 11275 Days

Day: 17.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 38,932,786 km

• M1: 57,146 km (0.063 R)
• M2: 319,840 km (0.096 R)
• M3: 743,352 km (0.111 R)
• M4: 917,334 km (0.104 R)
• M5: 1,887,626 km (0.038 R)
• M6: 2,196,246 km (0.096 R)
• M7: 2,413,163 km (0.097 R)
• M8: 3,325,561 km (0.098 R)
• M9: 3,693,123 km (0.116 R)
• M10: 5,229,942 km (0.085 R)
• M11: 5,545,743 km (0.074 R)
• M12: 6,450,511 km (0.069 R)
• M13: 8,499,702 km (0.067 R)
• M14: 9,185,309 km (0.088 R)
• M15: 9,490,040 km (0.111 R)
• M16: 10,445,073 km (0.116 R)
• M17: 10,833,130 km (0.102 R)
• M18: 11,173,465 km (0.098 R)
• M19: 13,109,710 km (0.074 R)
• M20: 16,865,215 km (0.118 R)
• M21: 18,661,886 km (0.117 R)
• M22: 20,069,003 km (0.105 R)
• M23: 21,016,406 km (0.103 R)
• M24: 21,903,073 km (0.103 R)
• M25: 22,083,488 km (0.092 R)
• M26: 22,722,271 km (0.03 R)
• M27: 23,941,194 km (0.09 R)
• M28: 25,006,182 km (0.116 R)
• M29: 26,406,717 km (0.078 R)
• M30: 29,254,013 km (0.108 R)
• M31: 31,261,766 km (0.115 R)
• M32: 46,445,352 km (0.063 R)
• M33: 48,250,549 km (0.05 R)
• M34: 49,324,812 km (0.114 R)
• M35: 51,680,529 km (0.108 R)
• M36: 53,291,848 km (0.102 R)
• M37: 54,936,527 km (0.113 R)
• M38: 55,436,483 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 485.3

Radius: 6.4

Gravity: 11.85 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 6.81 AU - 7.75 AU

Year: 12886 Days

Day: 17.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 118.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,932,786 km

• M1: 79,736 km (0.116 R)
• M2: 306,526 km (0.07 R)
• M3: 726,896 km (0.111 R)
• M4: 947,254 km (0.119 R)
• M5: 1,719,478 km (0.103 R)
• M6: 2,082,851 km (0.078 R)
• M7: 2,917,906 km (0.093 R)
• M8: 4,838,294 km (0.079 R)
• M9: 5,562,498 km (0.071 R)
• M10: 6,169,865 km (0.104 R)
• M11: 7,772,357 km (0.092 R)
• M12: 10,937,400 km (0.053 R)
• M13: 13,889,564 km (0.075 R)
• M14: 14,802,709 km (0.041 R)
• M15: 18,084,887 km (0.073 R)
• M16: 21,222,552 km (0.116 R)
• M17: 25,082,477 km (0.064 R)
• M18: 31,655,657 km (0.065 R)
• M19: 34,624,876 km (0.065 R)
• M20: 39,933,955 km (0.103 R)
• M21: 41,242,039 km (0.113 R)
• M22: 45,619,422 km (0.103 R)
• M23: 50,145,954 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.8

Radius: 4.7

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 6.33 AU - 10.21 AU

Year: 15602 Days

Day: 16.2 Hours

Environment

Temp: -237 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 38,932,786 km

• M1: 58,493 km (0.119 R)
• M2: 252,820 km (0.116 R)
• M3: 537,655 km (0.1 R)
• M4: 806,781 km (0.1 R)
• M5: 1,250,489 km (0.1 R)
• M6: 1,442,871 km (0.082 R)
• M7: 1,783,057 km (0.08 R)
• M8: 2,141,494 km (0.096 R)
• M9: 2,836,974 km (0.081 R)
• M10: 3,063,764 km (0.083 R)
• M11: 3,672,179 km (0.084 R)
• M12: 4,120,374 km (0.061 R)
• M13: 5,094,855 km (0.079 R)
• M14: 5,651,658 km (0.103 R)
• M15: 5,944,720 km (0.039 R)
• M16: 7,107,245 km (0.056 R)
• M17: 8,164,902 km (0.073 R)
• M18: 10,587,191 km (0.088 R)
• M19: 15,181,192 km (0.089 R)
• M20: 15,620,411 km (0.114 R)
• M21: 16,393,084 km (0.054 R)
• M22: 18,083,839 km (0.059 R)
• M23: 19,079,862 km (0.08 R)
• M24: 20,036,840 km (0.049 R)
• M25: 21,728,642 km (0.105 R)
• M26: 22,447,310 km (0.108 R)
• M27: 23,017,278 km (0.044 R)
• M28: 26,459,974 km (0.118 R)
• M29: 30,034,316 km (0.076 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 19,891 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit