🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.1

Radius: 11.9

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.68 AU - 0.88 AU

Year: 452 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,968,480 km

• M1: 147,952 km (0.092 R)
• M2: 606,470 km (0.081 R)
• M3: 1,186,760 km (0.057 R)
• M4: 2,010,895 km (0.076 R)
• M5: 2,712,658 km (0.089 R)
• M6: 3,173,270 km (0.054 R)
• M7: 3,855,586 km (0.077 R)
• M8: 4,253,516 km (0.117 R)
• M9: 5,345,581 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464

Radius: 14.8

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.64 AU - 1.06 AU

Year: 514 Days

Day: 9.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,968,480 km

• M1: 184,305 km (0.11 R)
• M2: 667,506 km (0.074 R)
• M3: 1,168,509 km (0.105 R)
• M4: 1,640,789 km (0.084 R)
• M5: 2,117,259 km (0.038 R)
• M6: 2,747,066 km (0.087 R)
• M7: 3,302,971 km (0.093 R)
• M8: 4,184,103 km (0.064 R)
• M9: 5,031,575 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.8

Radius: 9.4

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.3 AU - 2.04 AU

Year: 1416 Days

Day: 10.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,968,480 km

• M1: 116,986 km (0.104 R)
• M2: 616,642 km (0.11 R)
• M3: 1,032,375 km (0.091 R)
• M4: 1,585,588 km (0.058 R)
• M5: 2,163,933 km (0.093 R)
• M6: 2,471,806 km (0.091 R)
• M7: 2,904,891 km (0.048 R)
• M8: 3,296,389 km (0.114 R)
• M9: 3,657,518 km (0.109 R)
• M10: 4,079,983 km (0.085 R)
• M11: 4,553,610 km (0.099 R)
• M12: 4,882,874 km (0.094 R)
• M13: 5,417,238 km (0.062 R)
• M14: 5,720,922 km (0.118 R)
• M15: 6,244,514 km (0.098 R)
• M16: 6,578,716 km (0.107 R)
• M17: 7,205,232 km (0.039 R)
• M18: 7,707,581 km (0.116 R)
• M19: 9,636,048 km (0.093 R)
• M20: 11,122,751 km (0.112 R)
• M21: 11,794,147 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656

Radius: 12.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.41 AU - 2.59 AU

Year: 2593 Days

Day: 14.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,968,480 km

• M1: 159,621 km (0.094 R)
• M2: 766,091 km (0.069 R)
• M3: 1,481,917 km (0.106 R)
• M4: 2,853,729 km (0.109 R)
• M5: 3,577,483 km (0.117 R)
• M6: 5,440,127 km (0.107 R)
• M7: 8,005,880 km (0.104 R)
• M8: 9,624,678 km (0.097 R)
• M9: 11,211,912 km (0.091 R)
• M10: 12,576,543 km (0.12 R)
• M11: 14,281,810 km (0.092 R)
• M12: 17,016,309 km (0.052 R)
• M13: 18,423,427 km (0.117 R)
• M14: 19,212,555 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.2

Radius: 13.7

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.55 AU - 2.71 AU

Year: 2798 Days

Day: 6.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,968,480 km

• M1: 170,392 km (0.116 R)
• M2: 861,684 km (0.103 R)
• M3: 1,425,069 km (0.053 R)
• M4: 1,859,053 km (0.061 R)
• M5: 2,525,362 km (0.106 R)
• M6: 4,050,063 km (0.11 R)
• M7: 4,713,231 km (0.105 R)
• M8: 6,535,931 km (0.081 R)
• M9: 9,211,489 km (0.065 R)
• M10: 10,170,112 km (0.065 R)
• M11: 11,522,926 km (0.032 R)
• M12: 12,286,174 km (0.118 R)
• M13: 13,128,111 km (0.101 R)
• M14: 14,246,205 km (0.112 R)
• M15: 15,885,947 km (0.115 R)
• M16: 19,184,730 km (0.1 R)
• M17: 20,378,970 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.2

Radius: 14

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.29 AU - 3.23 AU

Year: 3008 Days

Day: 8.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,968,480 km

• M1: 174,132 km (0.082 R)
• M2: 681,568 km (0.064 R)
• M3: 1,176,737 km (0.048 R)
• M4: 2,069,537 km (0.114 R)
• M5: 2,767,710 km (0.057 R)
• M6: 3,707,933 km (0.064 R)
• M7: 4,618,086 km (0.08 R)
• M8: 5,205,557 km (0.1 R)
• M9: 5,793,776 km (0.054 R)
• M10: 6,425,977 km (0.097 R)
• M11: 7,132,078 km (0.12 R)
• M12: 7,650,884 km (0.078 R)
• M13: 9,293,020 km (0.071 R)
• M14: 9,877,798 km (0.113 R)
• M15: 10,450,608 km (0.096 R)
• M16: 11,389,933 km (0.073 R)
• M17: 12,221,847 km (0.046 R)
• M18: 13,179,124 km (0.061 R)
• M19: 13,786,042 km (0.097 R)
• M20: 16,750,623 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.5

Radius: 11.6

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.1 AU - 4.18 AU

Year: 4556 Days

Day: 5.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,968,480 km

• M1: 144,212 km (0.11 R)
• M2: 556,055 km (0.067 R)
• M3: 1,216,081 km (0.1 R)
• M4: 1,960,330 km (0.118 R)
• M5: 2,819,770 km (0.08 R)
• M6: 3,382,557 km (0.067 R)
• M7: 4,190,536 km (0.098 R)
• M8: 5,147,812 km (0.118 R)
• M9: 5,532,428 km (0.074 R)
• M10: 5,964,018 km (0.116 R)
• M11: 6,713,504 km (0.051 R)
• M12: 7,363,806 km (0.068 R)
• M13: 8,754,318 km (0.054 R)
• M14: 9,569,028 km (0.097 R)
• M15: 10,393,312 km (0.088 R)
• M16: 10,926,928 km (0.105 R)
• M17: 12,273,159 km (0.111 R)
• M18: 14,319,807 km (0.115 R)
• M19: 17,030,970 km (0.094 R)
• M20: 17,947,705 km (0.116 R)
• M21: 18,716,489 km (0.114 R)
• M22: 19,692,765 km (0.09 R)
• M23: 20,510,766 km (0.093 R)
• M24: 21,946,307 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.6

Radius: 11.1

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.51 AU - 5.53 AU

Year: 7378 Days

Day: 11.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,968,480 km

• M1: 138,079 km (0.061 R)
• M2: 489,335 km (0.084 R)
• M3: 846,574 km (0.099 R)
• M4: 1,900,940 km (0.047 R)
• M5: 2,762,325 km (0.032 R)
• M6: 3,272,902 km (0.089 R)
• M7: 3,641,063 km (0.099 R)
• M8: 4,461,457 km (0.051 R)
• M9: 4,965,303 km (0.065 R)
• M10: 5,480,219 km (0.094 R)
• M11: 7,209,869 km (0.117 R)
• M12: 11,624,652 km (0.113 R)
• M13: 12,864,220 km (0.105 R)
• M14: 13,688,654 km (0.097 R)
• M15: 14,599,705 km (0.108 R)
• M16: 20,153,526 km (0.119 R)
• M17: 21,667,307 km (0.117 R)
• M18: 23,897,512 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.2

Radius: 6.8

Gravity: 21.24 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.81 AU - 7.45 AU

Year: 11199 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 35,968,480 km

• M1: 97,837 km (0.068 R)
• M2: 385,963 km (0.065 R)
• M3: 765,343 km (0.104 R)
• M4: 1,084,136 km (0.05 R)
• M5: 1,431,951 km (0.065 R)
• M6: 2,176,200 km (0.09 R)
• M7: 3,406,194 km (0.07 R)
• M8: 3,699,107 km (0.028 R)
• M9: 5,076,604 km (0.039 R)
• M10: 5,318,055 km (0.029 R)
• M11: 5,567,285 km (0.117 R)
• M12: 5,824,144 km (0.096 R)
• M13: 6,932,365 km (0.047 R)
• M14: 7,360,215 km (0.107 R)
• M15: 9,506,645 km (0.106 R)
• M16: 11,797,138 km (0.103 R)
• M17: 12,469,132 km (0.11 R)
• M18: 13,101,931 km (0.096 R)
• M19: 13,689,701 km (0.093 R)
• M20: 18,548,042 km (0.094 R)
• M21: 20,393,032 km (0.117 R)
• M22: 21,004,887 km (0.12 R)
• M23: 23,766,315 km (0.076 R)
• M24: 24,248,917 km (0.089 R)
• M25: 28,132,927 km (0.067 R)
• M26: 31,246,657 km (0.114 R)
• M27: 35,703,626 km (0.106 R)
• M28: 36,082,558 km (0.11 R)
• M29: 38,017,456 km (0.081 R)
• M30: 47,967,211 km (0.118 R)
• M31: 50,939,421 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 58.6

Radius: 4.1

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 8.21 AU - 12.73 AU

Year: 22224 Days

Day: 22.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,968,480 km

• M1: 51,013 km (0.118 R)
• M2: 278,402 km (0.108 R)
• M3: 674,986 km (0.104 R)
• M4: 2,315,326 km (0.066 R)
• M5: 4,487,039 km (0.105 R)
• M6: 4,815,406 km (0.063 R)
• M7: 5,706,710 km (0.1 R)
• M8: 6,667,727 km (0.091 R)
• M9: 7,731,816 km (0.047 R)
• M10: 8,243,740 km (0.092 R)
• M11: 9,291,075 km (0.09 R)
• M12: 11,494,801 km (0.114 R)
• M13: 21,721,910 km (0.1 R)
• M14: 26,497,523 km (0.046 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 16,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit