🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.9

Radius: 9.6

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.67 AU - 0.99 AU

Year: 488 Days

Day: 7.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,544,887 km

• M1: 121,324 km (0.095 R)
• M2: 429,795 km (0.051 R)
• M3: 794,664 km (0.078 R)
• M4: 1,122,732 km (0.1 R)
• M5: 1,678,039 km (0.053 R)
• M6: 2,049,192 km (0.09 R)
• M7: 2,379,653 km (0.107 R)
• M8: 2,883,200 km (0.082 R)
• M9: 3,719,302 km (0.113 R)
• M10: 4,442,758 km (0.065 R)
• M11: 4,892,150 km (0.12 R)
• M12: 5,322,543 km (0.117 R)
• M13: 5,829,979 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.1

Radius: 14.3

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.01 AU - 1.29 AU

Year: 796 Days

Day: 10.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,544,887 km

• M1: 179,667 km (0.07 R)
• M2: 680,521 km (0.067 R)
• M3: 1,204,412 km (0.106 R)
• M4: 2,023,162 km (0.089 R)
• M5: 2,797,929 km (0.102 R)
• M6: 3,242,683 km (0.063 R)
• M7: 4,357,188 km (0.088 R)
• M8: 4,924,762 km (0.095 R)
• M9: 5,429,056 km (0.11 R)
• M10: 5,908,518 km (0.12 R)
• M11: 6,563,607 km (0.106 R)
• M12: 7,995,707 km (0.091 R)
• M13: 8,466,043 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.6

Radius: 10.3

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.17 AU - 1.63 AU

Year: 1070 Days

Day: 13.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,544,887 km

• M1: 128,056 km (0.11 R)
• M2: 554,111 km (0.082 R)
• M3: 1,215,782 km (0.113 R)
• M4: 1,547,141 km (0.064 R)
• M5: 2,113,070 km (0.054 R)
• M6: 2,800,921 km (0.102 R)
• M7: 3,429,531 km (0.049 R)
• M8: 3,756,851 km (0.062 R)
• M9: 4,749,882 km (0.11 R)
• M10: 5,123,129 km (0.049 R)
• M11: 5,795,122 km (0.105 R)
• M12: 6,123,190 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.2

Radius: 8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.58 AU - 2.6 AU

Year: 1951 Days

Day: 13.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,544,887 km

• M1: 99,632 km (0.094 R)
• M2: 543,788 km (0.114 R)
• M3: 845,527 km (0.09 R)
• M4: 1,289,085 km (0.084 R)
• M5: 2,142,541 km (0.105 R)
• M6: 2,753,050 km (0.082 R)
• M7: 3,258,541 km (0.115 R)
• M8: 3,840,177 km (0.077 R)
• M9: 4,541,941 km (0.086 R)
• M10: 7,018,534 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.4

Radius: 10.1

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.78 AU - 2.54 AU

Year: 2050 Days

Day: 9.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,544,887 km

• M1: 126,111 km (0.082 R)
• M2: 515,215 km (0.071 R)
• M3: 984,952 km (0.111 R)
• M4: 1,508,545 km (0.046 R)
• M5: 1,988,604 km (0.11 R)
• M6: 2,423,486 km (0.086 R)
• M7: 3,742,490 km (0.078 R)
• M8: 4,085,219 km (0.104 R)
• M9: 4,792,966 km (0.074 R)
• M10: 7,135,220 km (0.098 R)
• M11: 11,789,509 km (0.113 R)
• M12: 12,411,387 km (0.108 R)
• M13: 12,730,480 km (0.084 R)
• M14: 14,584,745 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.9

Radius: 11.4

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.92 AU - 3.2 AU

Year: 3456 Days

Day: 7.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,544,887 km

• M1: 164,408 km (0.082 R)
• M2: 645,216 km (0.117 R)
• M3: 1,049,728 km (0.111 R)
• M4: 1,449,155 km (0.098 R)
• M5: 1,859,950 km (0.082 R)
• M6: 3,012,153 km (0.066 R)
• M7: 3,408,288 km (0.051 R)
• M8: 4,079,235 km (0.089 R)
• M9: 4,663,115 km (0.093 R)
• M10: 5,629,069 km (0.081 R)
• M11: 5,998,575 km (0.092 R)
• M12: 6,384,239 km (0.084 R)
• M13: 6,754,942 km (0.062 R)
• M14: 7,990,022 km (0.094 R)
• M15: 9,135,942 km (0.112 R)
• M16: 9,890,514 km (0.108 R)
• M17: 10,946,226 km (0.037 R)
• M18: 11,389,035 km (0.088 R)
• M19: 15,761,632 km (0.072 R)
• M20: 16,441,554 km (0.088 R)
• M21: 17,022,891 km (0.081 R)
• M22: 17,738,568 km (0.107 R)
• M23: 19,166,479 km (0.119 R)
• M24: 23,468,166 km (0.117 R)
• M25: 24,280,183 km (0.062 R)
• M26: 24,806,469 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.4

Radius: 7.6

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 5.37 AU - 6.71 AU

Year: 9585 Days

Day: 16.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,544,887 km

• M1: 102,774 km (0.1 R)
• M2: 686,953 km (0.062 R)
• M3: 1,236,277 km (0.071 R)
• M4: 2,819,172 km (0.096 R)
• M5: 3,300,129 km (0.109 R)
• M6: 3,767,473 km (0.117 R)
• M7: 4,994,026 km (0.106 R)
• M8: 5,240,264 km (0.032 R)
• M9: 5,639,541 km (0.078 R)
• M10: 6,994,149 km (0.081 R)
• M11: 7,801,679 km (0.084 R)
• M12: 9,188,152 km (0.119 R)
• M13: 10,552,185 km (0.117 R)
• M14: 13,412,347 km (0.106 R)
• M15: 14,488,853 km (0.069 R)
• M16: 18,126,924 km (0.099 R)
• M17: 20,328,555 km (0.058 R)
• M18: 23,533,241 km (0.096 R)
• M19: 27,651,222 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 124.8

Radius: 6

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 7.93 AU - 8.15 AU

Year: 14720 Days

Day: 23.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,544,887 km

• M1: 74,649 km (0.055 R)
• M2: 479,611 km (0.031 R)
• M3: 796,459 km (0.1 R)
• M4: 1,213,688 km (0.065 R)
• M5: 1,671,008 km (0.026 R)
• M6: 1,866,383 km (0.098 R)
• M7: 2,320,263 km (0.12 R)
• M8: 2,942,889 km (0.059 R)
• M9: 4,102,422 km (0.098 R)
• M10: 4,923,266 km (0.116 R)
• M11: 6,203,525 km (0.032 R)
• M12: 6,885,242 km (0.065 R)
• M13: 7,883,209 km (0.072 R)
• M14: 8,848,116 km (0.068 R)
• M15: 10,070,629 km (0.1 R)
• M16: 10,817,721 km (0.069 R)
• M17: 11,155,962 km (0.098 R)
• M18: 11,352,384 km (0.059 R)
• M19: 13,612,359 km (0.103 R)
• M20: 13,836,756 km (0.105 R)
• M21: 14,817,968 km (0.111 R)
• M22: 16,407,296 km (0.111 R)
• M23: 18,790,689 km (0.027 R)
• M24: 20,871,147 km (0.032 R)
• M25: 28,115,723 km (0.026 R)
• M26: 31,998,985 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644

Radius: 4.6

Gravity: 30.43 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.33 AU - 9.53 AU

Year: 15804 Days

Day: 17.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,544,887 km

• M1: 58,792 km (0.11 R)
• M2: 224,546 km (0.06 R)
• M3: 689,796 km (0.033 R)
• M4: 1,241,812 km (0.115 R)
• M5: 1,935,198 km (0.108 R)
• M6: 3,387,045 km (0.106 R)
• M7: 3,549,957 km (0.065 R)
• M8: 3,803,975 km (0.093 R)
• M9: 6,092,672 km (0.11 R)
• M10: 6,750,454 km (0.099 R)
• M11: 8,955,677 km (0.118 R)
• M12: 9,426,611 km (0.114 R)
• M13: 10,821,611 km (0.061 R)
• M14: 22,266,297 km (0.029 R)
• M15: 24,313,693 km (0.088 R)
• M16: 25,955,231 km (0.115 R)
• M17: 32,769,414 km (0.119 R)
• M18: 35,281,461 km (0.113 R)
• M19: 39,285,747 km (0.049 R)
• M20: 57,613,431 km (0.067 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 576.3

Radius: 7.7

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.87 AU - 10.13 AU

Year: 17433 Days

Day: 21 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,544,887 km

• M1: 100,679 km (0.118 R)
• M2: 400,623 km (0.092 R)
• M3: 802,144 km (0.111 R)
• M4: 1,130,661 km (0.08 R)
• M5: 1,579,155 km (0.099 R)
• M6: 2,064,451 km (0.11 R)
• M7: 3,859,924 km (0.1 R)
• M8: 4,573,656 km (0.082 R)
• M9: 5,119,987 km (0.061 R)
• M10: 5,709,104 km (0.076 R)
• M11: 7,021,825 km (0.089 R)
• M12: 8,983,502 km (0.089 R)
• M13: 12,280,340 km (0.034 R)
• M14: 19,343,005 km (0.081 R)
• M15: 22,448,806 km (0.12 R)
• M16: 23,029,246 km (0.037 R)
• M17: 27,707,171 km (0.079 R)
• M18: 32,610,391 km (0.076 R)
• M19: 37,383,610 km (0.063 R)
• M20: 38,336,250 km (0.081 R)
• M21: 39,724,967 km (0.103 R)
• M22: 40,431,667 km (0.105 R)
• M23: 44,849,741 km (0.102 R)
• M24: 49,579,128 km (0.029 R)
• M25: 50,069,510 km (0.112 R)
• M26: 54,630,450 km (0.104 R)
• M27: 63,408,703 km (0.066 R)
• M28: 63,986,600 km (0.048 R)
• M29: 64,762,564 km (0.119 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: 343 - 16,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit