🌌 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: 525.3

Radius: 8.2

Gravity: 7.81 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.53 AU - 0.69 AU

Year: 335 Days

Day: 7 Hours

Environment

Temp: -146 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,755,116 km

• M1: 102,026 km (0.076 R)
• M2: 364,271 km (0.084 R)
• M3: 859,739 km (0.089 R)
• M4: 1,158,935 km (0.043 R)
• M5: 1,436,289 km (0.116 R)
• M6: 2,004,611 km (0.11 R)
• M7: 2,781,174 km (0.098 R)
• M8: 3,254,202 km (0.112 R)
• M9: 3,651,983 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.6

Radius: 13.8

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.52 AU - 0.82 AU

Year: 385 Days

Day: 6.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,755,116 km

• M1: 171,589 km (0.048 R)
• M2: 610,958 km (0.114 R)
• M3: 1,090,120 km (0.118 R)
• M4: 1,906,924 km (0.095 R)
• M5: 2,943,039 km (0.027 R)
• M6: 3,551,902 km (0.102 R)
• M7: 4,948,398 km (0.086 R)
• M8: 5,385,224 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.6

Radius: 8.8

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.86 AU - 1.18 AU

Year: 724 Days

Day: 8.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,755,116 km

• M1: 109,506 km (0.045 R)
• M2: 459,864 km (0.078 R)
• M3: 744,997 km (0.099 R)
• M4: 1,254,827 km (0.069 R)
• M5: 1,553,275 km (0.095 R)
• M6: 2,571,587 km (0.096 R)
• M7: 2,968,620 km (0.098 R)
• M8: 3,320,325 km (0.078 R)
• M9: 3,954,769 km (0.118 R)
• M10: 4,470,583 km (0.101 R)
• M11: 5,161,426 km (0.086 R)
• M12: 5,549,782 km (0.071 R)
• M13: 5,939,484 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.4

Radius: 14.2

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.89 AU - 2.95 AU

Year: 2646 Days

Day: 5.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,755,116 km

• M1: 176,675 km (0.052 R)
• M2: 673,340 km (0.104 R)
• M3: 1,396,496 km (0.085 R)
• M4: 2,147,477 km (0.106 R)
• M5: 2,654,016 km (0.09 R)
• M6: 3,361,165 km (0.115 R)
• M7: 3,874,585 km (0.081 R)
• M8: 5,154,843 km (0.057 R)
• M9: 5,664,374 km (0.1 R)
• M10: 6,261,120 km (0.057 R)
• M11: 8,178,067 km (0.119 R)
• M12: 9,218,969 km (0.108 R)
• M13: 10,158,743 km (0.099 R)
• M14: 10,807,100 km (0.067 R)
• M15: 11,851,891 km (0.074 R)
• M16: 12,831,458 km (0.099 R)
• M17: 13,498,964 km (0.098 R)
• M18: 15,392,723 km (0.111 R)
• M19: 15,892,679 km (0.049 R)
• M20: 17,565,932 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.9

Radius: 9.7

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.49 AU - 3.89 AU

Year: 4005 Days

Day: 11.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,755,116 km

• M1: 120,576 km (0.116 R)
• M2: 644,617 km (0.093 R)
• M3: 1,666,819 km (0.084 R)
• M4: 2,820,817 km (0.108 R)
• M5: 4,682,713 km (0.089 R)
• M6: 5,437,733 km (0.088 R)
• M7: 8,728,138 km (0.082 R)
• M8: 9,145,217 km (0.102 R)
• M9: 12,102,318 km (0.093 R)
• M10: 12,665,255 km (0.067 R)
• M11: 13,519,309 km (0.045 R)
• M12: 15,745,475 km (0.071 R)
• M13: 16,945,549 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.8

Radius: 9.5

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.3 AU - 5.2 AU

Year: 7277 Days

Day: 9.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 175.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,755,116 km

• M1: 122,670 km (0.083 R)
• M2: 465,249 km (0.079 R)
• M3: 1,167,611 km (0.114 R)
• M4: 1,468,602 km (0.084 R)
• M5: 2,183,979 km (0.072 R)
• M6: 3,095,330 km (0.12 R)
• M7: 4,140,570 km (0.096 R)
• M8: 4,474,921 km (0.084 R)
• M9: 6,770,351 km (0.068 R)
• M10: 7,272,700 km (0.106 R)
• M11: 7,915,822 km (0.106 R)
• M12: 11,663,697 km (0.111 R)
• M13: 13,581,392 km (0.115 R)
• M14: 14,733,146 km (0.094 R)
• M15: 15,091,134 km (0.085 R)
• M16: 17,627,416 km (0.106 R)
• M17: 19,779,082 km (0.047 R)
• M18: 20,435,219 km (0.067 R)
• M19: 31,208,360 km (0.119 R)
• M20: 32,197,351 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.8

Radius: 4.3

Gravity: 15.67 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 6.58 AU - 10.54 AU

Year: 17604 Days

Day: 15.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,755,116 km

• M1: 53,406 km (0.116 R)
• M2: 272,119 km (0.12 R)
• M3: 1,305,391 km (0.098 R)
• M4: 1,440,478 km (0.096 R)
• M5: 2,519,079 km (0.116 R)
• M6: 2,974,903 km (0.111 R)
• M7: 3,382,557 km (0.091 R)
• M8: 6,181,683 km (0.042 R)
• M9: 10,599,757 km (0.039 R)
• M10: 32,810,553 km (0.111 R)
• M11: 37,249,870 km (0.096 R)
• M12: 38,642,925 km (0.105 R)
• M13: 40,333,680 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.1

Radius: 7.1

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 7.5 AU - 10.2 AU

Year: 18506 Days

Day: 23.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 53,755,116 km

• M1: 88,263 km (0.049 R)
• M2: 636,689 km (0.105 R)
• M3: 858,393 km (0.099 R)
• M4: 1,098,348 km (0.107 R)
• M5: 1,452,147 km (0.101 R)
• M6: 1,733,989 km (0.115 R)
• M7: 2,142,242 km (0.074 R)
• M8: 3,127,044 km (0.117 R)
• M9: 5,244,153 km (0.112 R)
• M10: 5,519,114 km (0.104 R)
• M11: 5,949,507 km (0.114 R)
• M12: 6,210,855 km (0.066 R)
• M13: 8,398,873 km (0.032 R)
• M14: 10,777,479 km (0.052 R)
• M15: 11,336,078 km (0.074 R)
• M16: 12,090,799 km (0.067 R)
• M17: 13,190,493 km (0.101 R)
• M18: 14,894,712 km (0.092 R)
• M19: 15,657,960 km (0.101 R)
• M20: 18,733,693 km (0.09 R)
• M21: 19,215,248 km (0.103 R)
• M22: 23,553,886 km (0.116 R)
• M23: 25,555,954 km (0.094 R)
• M24: 28,084,158 km (0.111 R)
• M25: 32,353,382 km (0.118 R)
• M26: 33,631,546 km (0.059 R)
• M27: 34,223,355 km (0.074 R)
• M28: 34,462,113 km (0.092 R)
• M29: 38,305,582 km (0.044 R)
• M30: 42,700,917 km (0.101 R)
• M31: 46,538,102 km (0.083 R)
• M32: 47,866,681 km (0.059 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: 526 - 16,177 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit