🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.6

Radius: 12.4

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.46 AU - 0.76 AU

Year: 323 Days

Day: 14.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 74,000,536 km

• M1: 159,172 km (0.052 R)
• M2: 1,090,718 km (0.119 R)
• M3: 2,004,761 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.8

Radius: 13.9

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.85 AU - 0.87 AU

Year: 541 Days

Day: 12.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,000,536 km

• M1: 172,935 km (0.095 R)
• M2: 626,366 km (0.078 R)
• M3: 1,311,674 km (0.12 R)
• M4: 1,832,574 km (0.089 R)
• M5: 2,519,079 km (0.034 R)
• M6: 3,134,674 km (0.032 R)
• M7: 3,623,111 km (0.079 R)
• M8: 4,438,569 km (0.045 R)
• M9: 4,970,090 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.5

Radius: 9.1

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.29 AU - 1.91 AU

Year: 1373 Days

Day: 7 Hours

Environment

Temp: -189 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,000,536 km

• M1: 113,844 km (0.063 R)
• M2: 423,362 km (0.097 R)
• M3: 734,226 km (0.112 R)
• M4: 1,041,201 km (0.077 R)
• M5: 1,504,655 km (0.058 R)
• M6: 1,795,174 km (0.05 R)
• M7: 2,169,020 km (0.062 R)
• M8: 2,543,014 km (0.039 R)
• M9: 2,917,607 km (0.102 R)
• M10: 3,237,448 km (0.1 R)
• M11: 3,695,217 km (0.079 R)
• M12: 4,141,767 km (0.091 R)
• M13: 5,590,472 km (0.081 R)
• M14: 5,902,982 km (0.036 R)
• M15: 8,086,513 km (0.107 R)
• M16: 8,960,912 km (0.043 R)
• M17: 9,265,943 km (0.045 R)
• M18: 10,862,451 km (0.096 R)
• M19: 11,279,979 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.5

Radius: 12.8

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.38 AU - 2.66 AU

Year: 2713 Days

Day: 11.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,000,536 km

• M1: 159,621 km (0.061 R)
• M2: 671,545 km (0.039 R)
• M3: 1,492,239 km (0.074 R)
• M4: 2,275,982 km (0.117 R)
• M5: 3,035,790 km (0.104 R)
• M6: 4,056,795 km (0.119 R)
• M7: 4,486,440 km (0.12 R)
• M8: 5,318,204 km (0.112 R)
• M9: 5,809,334 km (0.107 R)
• M10: 6,330,533 km (0.064 R)
• M11: 7,527,466 km (0.106 R)
• M12: 8,340,829 km (0.084 R)
• M13: 9,142,823 km (0.074 R)
• M14: 10,179,686 km (0.107 R)
• M15: 11,135,318 km (0.098 R)
• M16: 12,487,084 km (0.076 R)
• M17: 15,663,047 km (0.051 R)
• M18: 16,063,071 km (0.047 R)
• M19: 18,387,074 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.2

Radius: 9.6

Gravity: 10.23 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.56 AU - 2.82 AU

Year: 2992 Days

Day: 8.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,000,536 km

• M1: 119,977 km (0.095 R)
• M2: 477,068 km (0.107 R)
• M3: 956,978 km (0.097 R)
• M4: 1,312,123 km (0.067 R)
• M5: 2,946,480 km (0.106 R)
• M6: 4,798,950 km (0.081 R)
• M7: 7,715,809 km (0.049 R)
• M8: 8,088,158 km (0.099 R)
• M9: 8,942,512 km (0.112 R)
• M10: 11,823,019 km (0.118 R)
• M11: 15,589,594 km (0.115 R)
• M12: 16,573,350 km (0.09 R)
• M13: 17,251,776 km (0.088 R)
• M14: 17,948,603 km (0.065 R)
• M15: 19,898,611 km (0.033 R)
• M16: 20,600,375 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.5

Radius: 9.9

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.14 AU - 3.22 AU

Year: 3846 Days

Day: 10.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 74,000,536 km

• M1: 125,363 km (0.077 R)
• M2: 790,326 km (0.062 R)
• M3: 2,318,917 km (0.104 R)
• M4: 5,208,699 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.2

Radius: 9.8

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.64 AU - 4.82 AU

Year: 5901 Days

Day: 8.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,000,536 km

• M1: 122,371 km (0.097 R)
• M2: 533,466 km (0.112 R)
• M3: 1,505,403 km (0.114 R)
• M4: 3,943,998 km (0.072 R)
• M5: 4,504,093 km (0.119 R)
• M6: 5,167,858 km (0.104 R)
• M7: 6,507,208 km (0.069 R)
• M8: 9,270,730 km (0.075 R)
• M9: 13,117,938 km (0.091 R)
• M10: 16,579,184 km (0.094 R)
• M11: 18,215,934 km (0.114 R)
• M12: 18,641,391 km (0.066 R)
• M13: 19,766,067 km (0.042 R)
• M14: 22,704,768 km (0.085 R)
• M15: 24,132,081 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.5

Radius: 14.2

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.38 AU - 6.12 AU

Year: 8159 Days

Day: 5.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,000,536 km

• M1: 176,525 km (0.067 R)
• M2: 710,141 km (0.057 R)
• M3: 1,210,546 km (0.115 R)
• M4: 1,708,258 km (0.098 R)
• M5: 2,615,120 km (0.059 R)
• M6: 3,444,940 km (0.116 R)
• M7: 4,722,805 km (0.107 R)
• M8: 5,565,789 km (0.082 R)
• M9: 6,091,177 km (0.053 R)
• M10: 6,721,881 km (0.045 R)
• M11: 9,553,320 km (0.052 R)
• M12: 11,728,473 km (0.117 R)
• M13: 12,485,139 km (0.092 R)
• M14: 13,389,458 km (0.037 R)
• M15: 14,519,820 km (0.114 R)
• M16: 16,834,548 km (0.118 R)
• M17: 17,380,729 km (0.096 R)
• M18: 22,185,364 km (0.103 R)
• M19: 26,782,357 km (0.088 R)
• M20: 30,144,420 km (0.099 R)
• M21: 31,052,479 km (0.036 R)
• M22: 33,455,918 km (0.094 R)
• M23: 35,980,981 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.7

Radius: 4.6

Gravity: 42.61 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.13 AU - 9.81 AU

Year: 16719 Days

Day: 24.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,000,536 km

• M1: 57,745 km (0.114 R)
• M2: 273,465 km (0.107 R)
• M3: 580,589 km (0.071 R)
• M4: 1,733,091 km (0.099 R)
• M5: 1,936,245 km (0.094 R)
• M6: 2,812,290 km (0.061 R)
• M7: 3,041,026 km (0.026 R)
• M8: 6,143,685 km (0.076 R)
• M9: 7,636,672 km (0.118 R)
• M10: 7,931,978 km (0.089 R)
• M11: 8,756,562 km (0.107 R)
• M12: 9,300,051 km (0.105 R)
• M13: 10,039,962 km (0.092 R)
• M14: 10,635,212 km (0.076 R)
• M15: 12,159,315 km (0.068 R)
• M16: 15,554,588 km (0.059 R)
• M17: 18,634,659 km (0.075 R)
• M18: 19,440,991 km (0.112 R)
• M19: 22,396,297 km (0.098 R)
• M20: 24,454,016 km (0.109 R)
• M21: 29,178,466 km (0.094 R)
• M22: 29,778,503 km (0.05 R)
• M23: 36,514,147 km (0.106 R)
• M24: 37,774,360 km (0.07 R)
• M25: 41,276,296 km (0.05 R)
• M26: 42,797,108 km (0.101 R)
• M27: 44,197,494 km (0.077 R)
• M28: 45,788,916 km (0.091 R)
• M29: 68,171,450 km (0.051 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: 160 - 16,424 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit