🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.3

Radius: 14.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.83 AU - 1.15 AU

Year: 692 Days

Day: 14.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,116,779 km

• M1: 184,604 km (0.106 R)
• M2: 649,853 km (0.081 R)
• M3: 1,413,401 km (0.114 R)
• M4: 2,202,829 km (0.089 R)
• M5: 3,480,694 km (0.09 R)
• M6: 4,168,844 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.3

Radius: 9.4

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.27 AU - 1.31 AU

Year: 1030 Days

Day: 14.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,116,779 km

• M1: 116,836 km (0.078 R)
• M2: 425,456 km (0.113 R)
• M3: 774,468 km (0.052 R)
• M4: 1,115,551 km (0.037 R)
• M5: 1,446,013 km (0.094 R)
• M6: 2,039,318 km (0.119 R)
• M7: 2,562,911 km (0.097 R)
• M8: 2,880,657 km (0.106 R)
• M9: 3,224,732 km (0.1 R)
• M10: 4,115,737 km (0.096 R)
• M11: 4,851,908 km (0.076 R)
• M12: 5,786,745 km (0.062 R)
• M13: 7,162,746 km (0.102 R)
• M14: 8,010,218 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.5

Radius: 13.5

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.38 AU - 1.76 AU

Year: 1383 Days

Day: 11.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,116,779 km

• M1: 169,195 km (0.085 R)
• M2: 970,441 km (0.091 R)
• M3: 1,466,508 km (0.082 R)
• M4: 2,095,567 km (0.088 R)
• M5: 2,973,108 km (0.093 R)
• M6: 3,545,619 km (0.086 R)
• M7: 5,528,389 km (0.118 R)
• M8: 6,461,880 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.9

Radius: 10.3

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.41 AU - 3.07 AU

Year: 3188 Days

Day: 14.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,116,779 km

• M1: 128,056 km (0.106 R)
• M2: 576,550 km (0.104 R)
• M3: 928,255 km (0.1 R)
• M4: 1,717,533 km (0.108 R)
• M5: 2,227,811 km (0.11 R)
• M6: 2,606,444 km (0.109 R)
• M7: 3,154,122 km (0.109 R)
• M8: 3,735,908 km (0.118 R)
• M9: 5,062,990 km (0.087 R)
• M10: 6,233,145 km (0.098 R)
• M11: 7,475,555 km (0.074 R)
• M12: 8,016,351 km (0.06 R)
• M13: 8,839,140 km (0.105 R)
• M14: 10,694,453 km (0.033 R)
• M15: 14,070,129 km (0.108 R)
• M16: 16,081,622 km (0.046 R)
• M17: 17,505,344 km (0.089 R)
• M18: 18,949,263 km (0.091 R)
• M19: 19,763,823 km (0.094 R)
• M20: 23,257,083 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.7

Radius: 13.2

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.11 AU - 4.31 AU

Year: 5023 Days

Day: 13.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,116,779 km

• M1: 164,258 km (0.057 R)
• M2: 682,914 km (0.078 R)
• M3: 1,149,660 km (0.072 R)
• M4: 1,659,340 km (0.075 R)
• M5: 2,154,209 km (0.113 R)
• M6: 2,695,903 km (0.117 R)
• M7: 3,307,759 km (0.11 R)
• M8: 4,864,025 km (0.066 R)
• M9: 6,013,386 km (0.066 R)
• M10: 6,636,311 km (0.08 R)
• M11: 7,902,208 km (0.089 R)
• M12: 9,002,501 km (0.068 R)
• M13: 11,227,769 km (0.045 R)
• M14: 16,678,966 km (0.094 R)
• M15: 19,401,797 km (0.098 R)
• M16: 19,871,534 km (0.093 R)
• M17: 21,114,393 km (0.071 R)
• M18: 21,611,507 km (0.093 R)
• M19: 23,074,873 km (0.083 R)
• M20: 23,678,501 km (0.077 R)
• M21: 25,233,570 km (0.109 R)
• M22: 26,361,838 km (0.08 R)
• M23: 26,938,537 km (0.12 R)
• M24: 27,439,541 km (0.049 R)
• M25: 28,632,584 km (0.071 R)
• M26: 29,505,786 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.6

Radius: 6.1

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 5.42 AU - 6.06 AU

Year: 9667 Days

Day: 15.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 58,116,779 km

• M1: 77,791 km (0.051 R)
• M2: 335,398 km (0.118 R)
• M3: 534,812 km (0.055 R)
• M4: 739,462 km (0.087 R)
• M5: 1,205,609 km (0.05 R)
• M6: 1,503,907 km (0.069 R)
• M7: 2,855,524 km (0.072 R)
• M8: 3,409,934 km (0.104 R)
• M9: 3,724,389 km (0.085 R)
• M10: 3,984,838 km (0.072 R)
• M11: 4,703,357 km (0.076 R)
• M12: 5,064,786 km (0.117 R)
• M13: 6,001,867 km (0.119 R)
• M14: 6,261,269 km (0.092 R)
• M15: 6,596,219 km (0.068 R)
• M16: 9,156,287 km (0.041 R)
• M17: 9,898,143 km (0.049 R)
• M18: 10,632,220 km (0.109 R)
• M19: 11,254,846 km (0.093 R)
• M20: 11,600,118 km (0.064 R)
• M21: 12,467,935 km (0.097 R)
• M22: 12,784,185 km (0.072 R)
• M23: 14,217,482 km (0.047 R)
• M24: 15,210,513 km (0.076 R)
• M25: 23,411,319 km (0.064 R)
• M26: 24,545,570 km (0.051 R)
• M27: 25,546,380 km (0.1 R)
• M28: 26,228,695 km (0.103 R)
• M29: 31,058,313 km (0.091 R)
• M30: 33,427,794 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 316.3

Radius: 4.5

Gravity: 15.62 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 8.36 AU - 10.06 AU

Year: 19647 Days

Day: 19.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,116,779 km

• M1: 56,099 km (0.105 R)
• M2: 251,923 km (0.069 R)
• M3: 1,303,446 km (0.11 R)
• M4: 3,317,931 km (0.099 R)
• M5: 3,500,141 km (0.099 R)
• M6: 3,941,605 km (0.102 R)
• M7: 6,886,738 km (0.097 R)
• M8: 8,172,831 km (0.092 R)
• M9: 8,553,857 km (0.11 R)
• M10: 9,046,931 km (0.072 R)
• M11: 9,351,662 km (0.114 R)
• M12: 11,561,073 km (0.084 R)
• M13: 14,230,946 km (0.112 R)
• M14: 14,852,226 km (0.11 R)
• M15: 15,204,978 km (0.05 R)
• M16: 15,347,694 km (0.068 R)
• M17: 17,207,645 km (0.109 R)
• M18: 20,487,279 km (0.099 R)
• M19: 22,642,535 km (0.12 R)
• M20: 23,679,099 km (0.108 R)
• M21: 24,257,594 km (0.089 R)
• M22: 24,845,514 km (0.099 R)
• M23: 25,342,627 km (0.036 R)
• M24: 25,846,323 km (0.091 R)
• M25: 26,562,598 km (0.104 R)
• M26: 28,682,250 km (0.048 R)
• M27: 31,141,041 km (0.116 R)
• M28: 31,371,272 km (0.102 R)
• M29: 31,835,175 km (0.094 R)
• M30: 33,014,904 km (0.088 R)
• M31: 34,346,026 km (0.118 R)
• M32: 35,211,599 km (0.076 R)
• M33: 42,665,163 km (0.115 R)
• M34: 49,054,039 km (0.113 R)
• M35: 49,678,760 km (0.107 R)
• M36: 50,467,290 km (0.082 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 12,230 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit