🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.81 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.1

Radius: 9.1

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.4 AU - 1.82 AU

Year: 1340 Days

Day: 13.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,364,879 km

• M1: 113,246 km (0.098 R)
• M2: 440,566 km (0.054 R)
• M3: 749,336 km (0.082 R)
• M4: 1,033,422 km (0.094 R)
• M5: 1,475,484 km (0.055 R)
• M6: 2,343,750 km (0.116 R)
• M7: 2,666,432 km (0.106 R)
• M8: 3,237,448 km (0.115 R)
• M9: 4,358,085 km (0.119 R)
• M10: 5,376,847 km (0.06 R)
• M11: 6,648,129 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.2

Radius: 9.8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.4 AU - 1.86 AU

Year: 1365 Days

Day: 11.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,364,879 km

• M1: 122,521 km (0.085 R)
• M2: 571,613 km (0.1 R)
• M3: 942,467 km (0.066 R)
• M4: 1,799,812 km (0.09 R)
• M5: 2,142,840 km (0.097 R)
• M6: 2,573,233 km (0.066 R)
• M7: 3,274,847 km (0.079 R)
• M8: 4,039,292 km (0.097 R)
• M9: 5,540,656 km (0.066 R)
• M10: 6,275,032 km (0.1 R)
• M11: 7,866,604 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.5

Radius: 11.6

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.13 AU - 3.51 AU

Year: 3107 Days

Day: 8 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,364,879 km

• M1: 156,330 km (0.091 R)
• M2: 520,451 km (0.07 R)
• M3: 1,900,192 km (0.096 R)
• M4: 2,335,821 km (0.103 R)
• M5: 4,106,761 km (0.103 R)
• M6: 4,512,620 km (0.076 R)
• M7: 5,207,502 km (0.105 R)
• M8: 5,836,561 km (0.118 R)
• M9: 6,392,167 km (0.055 R)
• M10: 8,032,059 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.4

Radius: 8

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.29 AU - 3.41 AU

Year: 3156 Days

Day: 11.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 38,364,879 km

• M1: 99,483 km (0.1 R)
• M2: 349,909 km (0.085 R)
• M3: 660,774 km (0.085 R)
• M4: 1,067,830 km (0.065 R)
• M5: 1,358,349 km (0.118 R)
• M6: 1,770,491 km (0.12 R)
• M7: 2,927,331 km (0.096 R)
• M8: 3,505,377 km (0.089 R)
• M9: 4,199,212 km (0.118 R)
• M10: 4,680,169 km (0.099 R)
• M11: 5,963,420 km (0.083 R)
• M12: 7,435,313 km (0.075 R)
• M13: 8,713,777 km (0.111 R)
• M14: 10,402,737 km (0.065 R)
• M15: 10,997,687 km (0.064 R)
• M16: 11,448,426 km (0.077 R)
• M17: 12,125,805 km (0.108 R)
• M18: 13,237,168 km (0.108 R)
• M19: 13,653,498 km (0.094 R)
• M20: 15,255,093 km (0.104 R)
• M21: 18,083,391 km (0.034 R)
• M22: 18,653,658 km (0.029 R)
• M23: 19,001,622 km (0.069 R)
• M24: 20,682,654 km (0.118 R)

Asteroid Belt

Center: 3.39 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.4

Radius: 10.2

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3 AU - 4.86 AU

Year: 5111 Days

Day: 14.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,364,879 km

• M1: 126,859 km (0.047 R)
• M2: 501,003 km (0.104 R)
• M3: 988,244 km (0.098 R)
• M4: 1,605,784 km (0.06 R)
• M5: 2,432,013 km (0.11 R)
• M6: 3,100,416 km (0.109 R)
• M7: 4,449,041 km (0.109 R)
• M8: 5,145,120 km (0.089 R)
• M9: 5,882,637 km (0.1 R)
• M10: 7,358,121 km (0.091 R)
• M11: 7,852,542 km (0.096 R)
• M12: 8,293,856 km (0.117 R)
• M13: 8,868,910 km (0.098 R)
• M14: 9,718,177 km (0.044 R)
• M15: 10,055,670 km (0.119 R)
• M16: 11,115,571 km (0.063 R)
• M17: 11,531,602 km (0.109 R)
• M18: 15,300,870 km (0.094 R)
• M19: 17,247,139 km (0.117 R)
• M20: 20,023,525 km (0.036 R)
• M21: 22,861,995 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.6

Radius: 9.8

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.38 AU - 5.3 AU

Year: 6985 Days

Day: 10.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,364,879 km

• M1: 121,922 km (0.097 R)
• M2: 427,700 km (0.037 R)
• M3: 1,250,040 km (0.083 R)
• M4: 4,560,641 km (0.115 R)
• M5: 5,449,102 km (0.028 R)
• M6: 6,340,855 km (0.102 R)
• M7: 7,810,654 km (0.094 R)
• M8: 11,290,600 km (0.1 R)
• M9: 15,150,973 km (0.077 R)
• M10: 17,165,757 km (0.078 R)
• M11: 17,696,082 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509

Radius: 5.4

Gravity: 17.46 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.52 AU - 7.34 AU

Year: 10696 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 38,364,879 km

• M1: 67,169 km (0.068 R)
• M2: 403,316 km (0.111 R)
• M3: 882,627 km (0.113 R)
• M4: 2,515,937 km (0.093 R)
• M5: 3,955,816 km (0.08 R)
• M6: 4,538,201 km (0.049 R)
• M7: 4,774,566 km (0.028 R)
• M8: 4,957,075 km (0.107 R)
• M9: 5,368,768 km (0.108 R)
• M10: 8,029,666 km (0.046 R)
• M11: 8,686,700 km (0.093 R)
• M12: 11,350,439 km (0.103 R)
• M13: 11,786,517 km (0.087 R)
• M14: 13,949,553 km (0.117 R)
• M15: 15,091,732 km (0.057 R)
• M16: 17,923,620 km (0.113 R)
• M17: 19,502,775 km (0.085 R)
• M18: 21,916,238 km (0.087 R)
• M19: 31,922,989 km (0.107 R)
• M20: 33,341,027 km (0.075 R)
• M21: 39,931,112 km (0.101 R)
• M22: 42,741,009 km (0.083 R)
• M23: 43,265,649 km (0.108 R)
• M24: 43,927,620 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.2

Radius: 4.5

Gravity: 13.05 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.8 AU - 7.72 AU

Year: 11530 Days

Day: 17.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 38,364,879 km

• M1: 55,950 km (0.04 R)
• M2: 298,448 km (0.114 R)
• M3: 870,211 km (0.119 R)
• M4: 1,019,509 km (0.115 R)
• M5: 1,219,522 km (0.074 R)
• M6: 2,381,299 km (0.059 R)
• M7: 2,833,832 km (0.098 R)
• M8: 3,760,591 km (0.096 R)
• M9: 7,569,203 km (0.066 R)
• M10: 8,166,249 km (0.059 R)
• M11: 9,319,199 km (0.117 R)
• M12: 9,589,523 km (0.113 R)
• M13: 9,818,557 km (0.081 R)
• M14: 11,220,439 km (0.099 R)
• M15: 15,081,560 km (0.028 R)
• M16: 15,960,298 km (0.066 R)
• M17: 16,674,328 km (0.108 R)
• M18: 18,800,712 km (0.115 R)
• M19: 22,842,996 km (0.104 R)
• M20: 23,499,432 km (0.117 R)
• M21: 23,832,437 km (0.104 R)
• M22: 26,971,598 km (0.117 R)
• M23: 29,306,821 km (0.118 R)
• M24: 30,474,133 km (0.069 R)
• M25: 34,911,505 km (0.113 R)
• M26: 35,781,866 km (0.083 R)
• M27: 38,250,081 km (0.093 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 176 - 12,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit