🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.8

Radius: 13.5

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.67 AU - 0.79 AU

Year: 438 Days

Day: 14.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 17,603,661 km

• M1: 167,849 km (0.025 R)
• M2: 811,269 km (0.063 R)
• M3: 1,347,727 km (0.109 R)
• M4: 2,055,924 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.8

Radius: 8.3

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.84 AU - 2.56 AU

Year: 2294 Days

Day: 6.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,603,661 km

• M1: 103,223 km (0.099 R)
• M2: 499,358 km (0.065 R)
• M3: 1,037,312 km (0.101 R)
• M4: 1,343,090 km (0.082 R)
• M5: 1,856,510 km (0.116 R)
• M6: 2,275,683 km (0.091 R)
• M7: 2,658,205 km (0.099 R)
• M8: 3,485,331 km (0.092 R)
• M9: 4,863,277 km (0.096 R)
• M10: 5,341,841 km (0.12 R)
• M11: 5,685,916 km (0.112 R)
• M12: 5,947,563 km (0.077 R)
• M13: 6,807,750 km (0.046 R)
• M14: 7,240,238 km (0.06 R)
• M15: 8,040,886 km (0.094 R)
• M16: 9,123,376 km (0.114 R)
• M17: 10,299,963 km (0.1 R)
• M18: 13,156,684 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.8

Radius: 14.7

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.23 AU - 2.25 AU

Year: 2357 Days

Day: 7.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,603,661 km

• M1: 182,809 km (0.11 R)
• M2: 708,645 km (0.041 R)
• M3: 1,179,729 km (0.108 R)
• M4: 2,339,412 km (0.078 R)
• M5: 2,810,346 km (0.096 R)
• M6: 4,104,966 km (0.116 R)
• M7: 4,932,242 km (0.053 R)
• M8: 6,048,541 km (0.07 R)
• M9: 6,834,977 km (0.089 R)
• M10: 7,327,304 km (0.055 R)
• M11: 9,050,671 km (0.073 R)
• M12: 9,538,659 km (0.037 R)
• M13: 10,605,891 km (0.105 R)
• M14: 11,833,192 km (0.11 R)
• M15: 15,193,010 km (0.118 R)
• M16: 16,085,361 km (0.096 R)
• M17: 18,359,099 km (0.036 R)
• M18: 18,973,498 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.8

Radius: 15

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.14 AU - 2.44 AU

Year: 2436 Days

Day: 8 Hours

Environment

Temp: -196 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,603,661 km

• M1: 186,549 km (0.057 R)
• M2: 737,069 km (0.071 R)
• M3: 1,593,367 km (0.099 R)
• M4: 2,060,112 km (0.094 R)
• M5: 2,632,175 km (0.115 R)
• M6: 3,238,943 km (0.085 R)
• M7: 5,983,616 km (0.119 R)
• M8: 7,066,555 km (0.061 R)
• M9: 8,061,380 km (0.11 R)
• M10: 8,718,863 km (0.078 R)
• M11: 10,172,655 km (0.106 R)
• M12: 11,441,245 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.2

Radius: 11.3

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.87 AU - 3.87 AU

Year: 5351 Days

Day: 13.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 17,603,661 km

• M1: 143,764 km (0.095 R)
• M2: 512,971 km (0.093 R)
• M3: 910,752 km (0.116 R)
• M4: 1,426,565 km (0.099 R)
• M5: 1,822,850 km (0.1 R)
• M6: 2,260,424 km (0.077 R)
• M7: 2,656,858 km (0.061 R)
• M8: 3,729,176 km (0.083 R)
• M9: 4,928,203 km (0.108 R)
• M10: 6,988,465 km (0.064 R)
• M11: 7,498,144 km (0.113 R)
• M12: 8,389,449 km (0.108 R)
• M13: 9,568,280 km (0.089 R)
• M14: 12,252,215 km (0.06 R)
• M15: 13,321,840 km (0.109 R)
• M16: 14,279,117 km (0.103 R)
• M17: 15,101,456 km (0.093 R)
• M18: 18,709,159 km (0.102 R)
• M19: 21,842,336 km (0.098 R)
• M20: 22,775,677 km (0.095 R)
• M21: 23,332,182 km (0.106 R)
• M22: 24,389,988 km (0.103 R)
• M23: 25,564,481 km (0.07 R)
• M24: 26,776,373 km (0.062 R)
• M25: 27,396,456 km (0.117 R)
• M26: 28,116,770 km (0.103 R)
• M27: 28,665,346 km (0.111 R)
• M28: 29,595,396 km (0.113 R)
• M29: 32,506,570 km (0.074 R)
• M30: 33,313,950 km (0.063 R)
• M31: 34,550,077 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.3

Radius: 6.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.02 AU - 5.94 AU

Year: 9017 Days

Day: 24.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 17,603,661 km

• M1: 85,869 km (0.117 R)
• M2: 300,991 km (0.056 R)
• M3: 753,824 km (0.042 R)
• M4: 1,198,578 km (0.084 R)
• M5: 1,437,785 km (0.085 R)
• M6: 1,882,689 km (0.12 R)
• M7: 2,123,841 km (0.12 R)
• M8: 2,751,404 km (0.067 R)
• M9: 3,575,389 km (0.081 R)
• M10: 4,460,261 km (0.068 R)
• M11: 6,007,102 km (0.096 R)
• M12: 6,746,565 km (0.028 R)
• M13: 7,678,410 km (0.11 R)
• M14: 7,915,672 km (0.068 R)
• M15: 8,656,930 km (0.109 R)
• M16: 8,988,438 km (0.105 R)
• M17: 9,834,564 km (0.065 R)
• M18: 11,029,552 km (0.116 R)
• M19: 13,263,796 km (0.115 R)
• M20: 14,875,863 km (0.091 R)
• M21: 16,501,692 km (0.107 R)
• M22: 18,003,655 km (0.109 R)
• M23: 18,910,517 km (0.117 R)
• M24: 22,153,201 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 408.6

Radius: 3.5

Gravity: 33.36 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.83 AU - 6.47 AU

Year: 10721 Days

Day: 22.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 17,603,661 km

• M1: 64,327 km (0.082 R)
• M2: 273,764 km (0.077 R)
• M3: 391,498 km (0.119 R)
• M4: 735,423 km (0.108 R)
• M5: 1,574,667 km (0.08 R)
• M6: 1,853,817 km (0.06 R)
• M7: 2,725,524 km (0.106 R)
• M8: 2,932,268 km (0.055 R)
• M9: 6,728,912 km (0.054 R)
• M10: 7,029,903 km (0.095 R)
• M11: 8,367,009 km (0.109 R)
• M12: 9,072,512 km (0.091 R)
• M13: 9,769,190 km (0.108 R)
• M14: 11,425,986 km (0.051 R)
• M15: 13,974,087 km (0.116 R)
• M16: 14,712,502 km (0.076 R)
• M17: 15,737,098 km (0.115 R)
• M18: 16,333,844 km (0.079 R)
• M19: 21,661,024 km (0.109 R)
• M20: 22,316,113 km (0.085 R)
• M21: 23,068,590 km (0.079 R)
• M22: 26,064,587 km (0.087 R)
• M23: 28,816,439 km (0.081 R)
• M24: 29,908,953 km (0.12 R)
• M25: 30,414,593 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 28.4

Radius: 7.4

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.13 AU - 7.33 AU

Year: 10931 Days

Day: 21.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,603,661 km

• M1: 92,003 km (0.107 R)
• M2: 334,052 km (0.098 R)
• M3: 1,154,896 km (0.099 R)
• M4: 1,852,770 km (0.117 R)
• M5: 2,164,831 km (0.037 R)
• M6: 9,091,661 km (0.115 R)
• M7: 10,960,587 km (0.117 R)
• M8: 15,633,725 km (0.089 R)
• M9: 17,083,478 km (0.094 R)
• M10: 17,446,552 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 10,551 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit