🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.9

Radius: 14.7

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.52 AU - 0.54 AU

Year: 271 Days

Day: 13.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,120,428 km

• M1: 182,958 km (0.028 R)
• M2: 666,907 km (0.096 R)
• M3: 1,228,348 km (0.079 R)
• M4: 1,755,232 km (0.058 R)
• M5: 2,230,504 km (0.119 R)
• M6: 2,748,562 km (0.062 R)
• M7: 3,367,598 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.2

Radius: 9.8

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.49 AU - 0.69 AU

Year: 319 Days

Day: 13.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,120,428 km

• M1: 121,922 km (0.116 R)
• M2: 537,804 km (0.105 R)
• M3: 890,855 km (0.096 R)
• M4: 1,528,890 km (0.059 R)
• M5: 1,873,414 km (0.045 R)
• M6: 2,304,705 km (0.039 R)
• M7: 2,965,179 km (0.105 R)
• M8: 3,289,657 km (0.092 R)
• M9: 3,625,953 km (0.073 R)
• M10: 4,101,525 km (0.109 R)
• M11: 4,618,086 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.7

Radius: 14.9

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.58 AU - 0.78 AU

Year: 394 Days

Day: 12.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,120,428 km

• M1: 185,352 km (0.088 R)
• M2: 744,399 km (0.056 R)
• M3: 1,382,733 km (0.103 R)
• M4: 1,894,807 km (0.06 R)
• M5: 2,535,534 km (0.088 R)
• M6: 3,027,113 km (0.103 R)
• M7: 3,594,687 km (0.116 R)
• M8: 4,167,348 km (0.117 R)
• M9: 5,111,011 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.1

Radius: 14.5

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.3 AU - 3.3 AU

Year: 4214 Days

Day: 11.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,120,428 km

• M1: 180,265 km (0.029 R)
• M2: 701,614 km (0.064 R)
• M3: 1,394,103 km (0.096 R)
• M4: 2,067,742 km (0.101 R)
• M5: 2,569,044 km (0.113 R)
• M6: 3,203,190 km (0.086 R)
• M7: 4,101,076 km (0.042 R)
• M8: 5,379,240 km (0.084 R)
• M9: 5,833,868 km (0.111 R)
• M10: 6,621,052 km (0.029 R)
• M11: 7,853,888 km (0.092 R)
• M12: 8,677,873 km (0.109 R)
• M13: 10,930,967 km (0.114 R)
• M14: 11,539,980 km (0.088 R)
• M15: 13,969,898 km (0.074 R)
• M16: 14,445,918 km (0.112 R)
• M17: 15,480,986 km (0.108 R)
• M18: 18,088,178 km (0.116 R)
• M19: 18,654,256 km (0.112 R)
• M20: 19,584,456 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.8

Radius: 12.4

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.72 AU - 3.92 AU

Year: 5248 Days

Day: 13.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,120,428 km

• M1: 154,684 km (0.12 R)
• M2: 610,359 km (0.083 R)
• M3: 1,356,703 km (0.097 R)
• M4: 2,013,887 km (0.114 R)
• M5: 2,528,802 km (0.043 R)
• M6: 4,677,327 km (0.103 R)
• M7: 5,205,258 km (0.069 R)
• M8: 5,772,533 km (0.119 R)
• M9: 7,174,115 km (0.031 R)
• M10: 8,425,950 km (0.113 R)
• M11: 10,828,343 km (0.107 R)
• M12: 15,999,193 km (0.074 R)
• M13: 17,266,287 km (0.11 R)
• M14: 17,725,104 km (0.073 R)
• M15: 19,856,275 km (0.036 R)
• M16: 21,468,790 km (0.051 R)
• M17: 28,433,020 km (0.082 R)
• M18: 29,258,352 km (0.085 R)
• M19: 31,246,358 km (0.116 R)
• M20: 32,224,129 km (0.037 R)
• M21: 32,620,863 km (0.102 R)
• M22: 33,932,836 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.8

Radius: 8.5

Gravity: 13.7 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.95 AU - 4.69 AU

Year: 5248 Days

Day: 11 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,120,428 km

• M1: 105,915 km (0.096 R)
• M2: 550,371 km (0.038 R)
• M3: 885,619 km (0.115 R)
• M4: 1,152,951 km (0.03 R)
• M5: 1,475,185 km (0.088 R)
• M6: 1,944,623 km (0.094 R)
• M7: 3,287,563 km (0.116 R)
• M8: 5,702,671 km (0.066 R)
• M9: 6,615,667 km (0.06 R)
• M10: 7,215,704 km (0.11 R)
• M11: 8,163,257 km (0.101 R)
• M12: 12,059,832 km (0.091 R)
• M13: 12,423,056 km (0.047 R)
• M14: 15,475,750 km (0.08 R)
• M15: 15,781,528 km (0.105 R)
• M16: 28,931,331 km (0.077 R)
• M17: 34,628,766 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 54.9

Radius: 4

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.9 AU - 6.86 AU

Year: 10022 Days

Day: 24.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,120,428 km

• M1: 49,816 km (0.113 R)
• M2: 193,580 km (0.067 R)
• M3: 338,690 km (0.059 R)
• M4: 527,781 km (0.051 R)
• M5: 771,626 km (0.078 R)
• M6: 1,029,233 km (0.114 R)
• M7: 1,668,615 km (0.103 R)
• M8: 1,796,670 km (0.061 R)
• M9: 2,166,177 km (0.09 R)
• M10: 3,054,639 km (0.109 R)
• M11: 3,503,732 km (0.12 R)
• M12: 5,798,862 km (0.081 R)
• M13: 6,686,277 km (0.062 R)
• M14: 7,041,123 km (0.037 R)
• M15: 9,402,675 km (0.081 R)
• M16: 9,923,575 km (0.039 R)
• M17: 10,740,529 km (0.113 R)
• M18: 12,200,305 km (0.1 R)
• M19: 14,507,553 km (0.112 R)
• M20: 18,317,212 km (0.1 R)
• M21: 18,489,100 km (0.104 R)
• M22: 18,952,405 km (0.09 R)
• M23: 20,144,700 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.5

Radius: 5

Gravity: 23.74 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.61 AU - 9.61 AU

Year: 16235 Days

Day: 21.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,120,428 km

• M1: 95,743 km (0.069 R)
• M2: 350,657 km (0.081 R)
• M3: 809,624 km (0.119 R)
• M4: 1,196,334 km (0.105 R)
• M5: 2,835,927 km (0.038 R)
• M6: 7,756,799 km (0.119 R)
• M7: 11,255,295 km (0.041 R)
• M8: 11,617,621 km (0.108 R)
• M9: 12,816,498 km (0.106 R)
• M10: 15,679,951 km (0.069 R)
• M11: 25,202,753 km (0.062 R)
• M12: 26,452,643 km (0.099 R)
• M13: 29,871,703 km (0.099 R)
• M14: 31,866,142 km (0.075 R)
• M15: 32,106,396 km (0.062 R)
• M16: 32,469,171 km (0.105 R)
• M17: 34,957,881 km (0.075 R)
• M18: 49,004,971 km (0.099 R)
• M19: 51,440,873 km (0.091 R)
• M20: 61,433,114 km (0.113 R)
• M21: 61,619,064 km (0.085 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 11,443 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit