🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428

Radius: 12.8

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.53 AU - 0.61 AU

Year: 287 Days

Day: 8.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,981,453 km

• M1: 159,172 km (0.059 R)
• M2: 611,107 km (0.067 R)
• M3: 1,092,962 km (0.114 R)
• M4: 1,499,419 km (0.095 R)
• M5: 2,065,498 km (0.084 R)
• M6: 2,719,988 km (0.117 R)
• M7: 3,447,333 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.8

Radius: 11.3

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.08 AU - 1.2 AU

Year: 812 Days

Day: 12.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,981,453 km

• M1: 140,472 km (0.09 R)
• M2: 581,637 km (0.107 R)
• M3: 1,002,007 km (0.11 R)
• M4: 1,678,638 km (0.071 R)
• M5: 2,504,268 km (0.1 R)
• M6: 2,978,045 km (0.093 R)
• M7: 3,399,761 km (0.063 R)
• M8: 3,983,043 km (0.111 R)
• M9: 4,598,040 km (0.104 R)
• M10: 5,599,448 km (0.102 R)
• M11: 6,762,721 km (0.091 R)
• M12: 8,307,319 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.1

Radius: 10.9

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.27 AU - 1.47 AU

Year: 1069 Days

Day: 7 Hours

Environment

Temp: -188 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,981,453 km

• M1: 136,732 km (0.112 R)
• M2: 539,749 km (0.087 R)
• M3: 910,602 km (0.065 R)
• M4: 1,541,905 km (0.1 R)
• M5: 2,495,143 km (0.102 R)
• M6: 3,136,768 km (0.107 R)
• M7: 3,755,355 km (0.079 R)
• M8: 4,399,823 km (0.111 R)
• M9: 5,523,901 km (0.12 R)
• M10: 6,243,916 km (0.105 R)
• M11: 6,830,190 km (0.078 R)
• M12: 8,004,533 km (0.065 R)
• M13: 8,499,104 km (0.071 R)
• M14: 9,549,430 km (0.075 R)
• M15: 10,749,953 km (0.058 R)
• M16: 11,455,008 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.4

Radius: 13.8

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.78 AU - 1.96 AU

Year: 1705 Days

Day: 5.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,981,453 km

• M1: 172,935 km (0.036 R)
• M2: 684,111 km (0.094 R)
• M3: 1,278,164 km (0.105 R)
• M4: 1,775,278 km (0.097 R)
• M5: 2,695,903 km (0.054 R)
• M6: 3,280,681 km (0.045 R)
• M7: 3,949,533 km (0.114 R)
• M8: 4,668,800 km (0.116 R)
• M9: 5,561,750 km (0.087 R)
• M10: 6,250,049 km (0.059 R)
• M11: 7,255,646 km (0.095 R)
• M12: 9,492,134 km (0.082 R)
• M13: 10,751,001 km (0.066 R)
• M14: 12,382,365 km (0.111 R)
• M15: 13,277,409 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.3

Radius: 8.2

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.2 AU - 3.16 AU

Year: 2926 Days

Day: 13.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,981,453 km

• M1: 109,506 km (0.085 R)
• M2: 433,385 km (0.105 R)
• M3: 830,119 km (0.032 R)
• M4: 1,184,965 km (0.089 R)
• M5: 1,639,892 km (0.058 R)
• M6: 2,737,192 km (0.116 R)
• M7: 4,155,081 km (0.086 R)
• M8: 4,845,325 km (0.075 R)
• M9: 5,405,270 km (0.07 R)
• M10: 8,592,303 km (0.068 R)
• M11: 9,157,334 km (0.093 R)
• M12: 9,597,152 km (0.064 R)
• M13: 10,400,792 km (0.066 R)
• M14: 11,207,124 km (0.116 R)
• M15: 12,011,213 km (0.117 R)
• M16: 12,583,126 km (0.1 R)
• M17: 17,051,764 km (0.039 R)
• M18: 17,327,323 km (0.104 R)
• M19: 18,749,400 km (0.098 R)
• M20: 19,279,874 km (0.08 R)
• M21: 20,124,953 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.5

Radius: 8.3

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.31 AU - 3.37 AU

Year: 3192 Days

Day: 7.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,981,453 km

• M1: 121,922 km (0.108 R)
• M2: 384,766 km (0.114 R)
• M3: 666,907 km (0.073 R)
• M4: 1,038,060 km (0.116 R)
• M5: 1,513,182 km (0.065 R)
• M6: 1,795,773 km (0.043 R)
• M7: 2,126,833 km (0.118 R)
• M8: 2,754,396 km (0.053 R)
• M9: 3,409,036 km (0.088 R)
• M10: 3,980,051 km (0.1 R)
• M11: 5,635,801 km (0.058 R)
• M12: 6,079,209 km (0.107 R)
• M13: 6,573,929 km (0.107 R)
• M14: 6,860,259 km (0.104 R)
• M15: 9,103,778 km (0.098 R)
• M16: 9,496,024 km (0.108 R)
• M17: 11,546,562 km (0.112 R)
• M18: 15,879,964 km (0.104 R)
• M19: 16,448,884 km (0.081 R)
• M20: 19,499,634 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.1

Radius: 13.4

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.68 AU - 4.78 AU

Year: 5801 Days

Day: 10.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,981,453 km

• M1: 212,728 km (0.066 R)
• M2: 792,719 km (0.057 R)
• M3: 1,228,199 km (0.089 R)
• M4: 2,008,950 km (0.105 R)
• M5: 2,889,632 km (0.107 R)
• M6: 3,822,226 km (0.105 R)
• M7: 4,256,957 km (0.114 R)
• M8: 4,724,899 km (0.057 R)
• M9: 5,331,818 km (0.047 R)
• M10: 7,048,004 km (0.096 R)
• M11: 8,226,237 km (0.118 R)
• M12: 8,956,275 km (0.088 R)
• M13: 9,689,454 km (0.056 R)
• M14: 12,932,736 km (0.074 R)
• M15: 14,329,681 km (0.068 R)
• M16: 16,724,892 km (0.114 R)
• M17: 20,340,523 km (0.098 R)
• M18: 20,868,005 km (0.045 R)
• M19: 24,968,932 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.7

Radius: 12.5

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.72 AU - 4.8 AU

Year: 5863 Days

Day: 11.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,981,453 km

• M1: 157,975 km (0.094 R)
• M2: 607,367 km (0.11 R)
• M3: 1,192,445 km (0.086 R)
• M4: 2,125,636 km (0.059 R)
• M5: 3,453,317 km (0.061 R)
• M6: 4,439,317 km (0.09 R)
• M7: 6,579,464 km (0.111 R)
• M8: 7,894,728 km (0.082 R)
• M9: 9,378,291 km (0.093 R)
• M10: 11,187,078 km (0.049 R)
• M11: 11,635,573 km (0.092 R)
• M12: 12,515,657 km (0.049 R)
• M13: 13,776,318 km (0.104 R)
• M14: 15,240,881 km (0.096 R)
• M15: 16,167,939 km (0.066 R)
• M16: 17,066,873 km (0.036 R)
• M17: 18,066,636 km (0.105 R)
• M18: 23,659,801 km (0.116 R)
• M19: 26,980,425 km (0.064 R)
• M20: 30,118,839 km (0.082 R)
• M21: 35,484,316 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.5

Radius: 7.1

Gravity: 10.58 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.89 AU - 7.03 AU

Year: 10949 Days

Day: 23.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,981,453 km

• M1: 88,263 km (0.083 R)
• M2: 326,273 km (0.073 R)
• M3: 1,301,053 km (0.104 R)
• M4: 1,522,158 km (0.113 R)
• M5: 2,715,351 km (0.109 R)
• M6: 3,217,701 km (0.095 R)
• M7: 3,479,048 km (0.073 R)
• M8: 4,017,451 km (0.043 R)
• M9: 4,349,408 km (0.113 R)
• M10: 5,623,384 km (0.112 R)
• M11: 7,616,327 km (0.094 R)
• M12: 9,449,798 km (0.102 R)
• M13: 9,987,902 km (0.071 R)
• M14: 11,018,332 km (0.027 R)
• M15: 11,669,681 km (0.12 R)
• M16: 14,215,238 km (0.105 R)
• M17: 15,250,157 km (0.093 R)
• M18: 20,132,732 km (0.113 R)
• M19: 20,777,648 km (0.091 R)
• M20: 21,353,002 km (0.057 R)
• M21: 27,803,512 km (0.091 R)
• M22: 28,805,220 km (0.109 R)
• M23: 29,314,900 km (0.079 R)
• M24: 31,307,094 km (0.103 R)
• M25: 33,164,352 km (0.103 R)
• M26: 34,748,145 km (0.093 R)
• M27: 35,094,015 km (0.076 R)
• M28: 36,027,356 km (0.066 R)
• M29: 36,738,245 km (0.094 R)
• M30: 38,679,577 km (0.069 R)
• M31: 40,688,377 km (0.067 R)
• M32: 43,295,718 km (0.072 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624

Radius: 3.6

Gravity: 48.15 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 10.06 AU - 11.66 AU

Year: 23866 Days

Day: 20.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,981,453 km

• M1: 46,824 km (0.081 R)
• M2: 202,855 km (0.05 R)
• M3: 353,649 km (0.11 R)
• M4: 528,529 km (0.101 R)
• M5: 641,027 km (0.111 R)
• M6: 915,838 km (0.043 R)
• M7: 1,641,238 km (0.065 R)
• M8: 2,587,894 km (0.117 R)
• M9: 3,510,015 km (0.094 R)
• M10: 3,850,200 km (0.107 R)
• M11: 6,777,831 km (0.082 R)
• M12: 9,742,561 km (0.054 R)
• M13: 17,514,919 km (0.088 R)
• M14: 20,684,299 km (0.112 R)
• M15: 25,551,616 km (0.103 R)
• M16: 26,007,889 km (0.112 R)
• M17: 28,127,840 km (0.097 R)
• M18: 28,982,493 km (0.117 R)
• M19: 33,516,655 km (0.108 R)
• M20: 33,925,955 km (0.031 R)
• M21: 40,935,812 km (0.083 R)
• M22: 47,638,544 km (0.026 R)
• M23: 47,810,582 km (0.096 R)
• M24: 55,605,828 km (0.117 R)
• M25: 57,727,724 km (0.077 R)
• M26: 63,787,784 km (0.094 R)
• M27: 66,111,937 km (0.057 R)
• M28: 69,813,736 km (0.097 R)
• M29: 70,258,191 km (0.081 R)
• M30: 75,505,037 km (0.193 R)
• M31: 76,207,998 km (0.068 R)
• M32: 78,583,013 km (0.1 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 13,671 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit