🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.3

Radius: 12.6

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.47 AU - 0.77 AU

Year: 331 Days

Day: 12.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,146,930 km

• M1: 157,078 km (0.104 R)
• M2: 617,390 km (0.062 R)
• M3: 1,077,703 km (0.06 R)
• M4: 1,651,560 km (0.106 R)
• M5: 2,063,104 km (0.12 R)
• M6: 2,873,326 km (0.036 R)
• M7: 3,299,082 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.7

Radius: 11.7

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.86 AU - 0.94 AU

Year: 579 Days

Day: 12.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,146,930 km

• M1: 145,858 km (0.058 R)
• M2: 584,928 km (0.116 R)
• M3: 1,101,340 km (0.115 R)
• M4: 1,476,531 km (0.073 R)
• M5: 1,871,619 km (0.119 R)
• M6: 2,355,269 km (0.112 R)
• M7: 2,851,335 km (0.08 R)
• M8: 3,326,608 km (0.062 R)
• M9: 3,744,435 km (0.107 R)
• M10: 4,588,915 km (0.096 R)
• M11: 5,184,314 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.3

Radius: 14.9

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.78 AU - 1.1 AU

Year: 618 Days

Day: 11.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 72,146,930 km

• M1: 185,352 km (0.108 R)
• M2: 704,456 km (0.117 R)
• M3: 1,203,664 km (0.104 R)
• M4: 4,250,524 km (0.078 R)
• M5: 6,398,899 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.6

Radius: 13

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.61 AU - 1.97 AU

Year: 1624 Days

Day: 7.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,146,930 km

• M1: 161,715 km (0.074 R)
• M2: 610,509 km (0.113 R)
• M3: 1,179,280 km (0.119 R)
• M4: 1,777,671 km (0.076 R)
• M5: 2,402,691 km (0.093 R)
• M6: 2,987,021 km (0.111 R)
• M7: 4,523,540 km (0.106 R)
• M8: 5,109,066 km (0.094 R)
• M9: 6,381,696 km (0.066 R)
• M10: 8,122,267 km (0.12 R)
• M11: 9,248,888 km (0.099 R)
• M12: 10,300,412 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.7

Radius: 14.8

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.59 AU - 2.29 AU

Year: 1833 Days

Day: 7.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,146,930 km

• M1: 184,005 km (0.098 R)
• M2: 671,545 km (0.048 R)
• M3: 1,201,121 km (0.075 R)
• M4: 1,957,787 km (0.11 R)
• M5: 2,674,511 km (0.095 R)
• M6: 3,202,741 km (0.034 R)
• M7: 3,704,043 km (0.083 R)
• M8: 4,205,346 km (0.115 R)
• M9: 5,003,750 km (0.049 R)
• M10: 5,705,064 km (0.112 R)
• M11: 7,027,809 km (0.089 R)
• M12: 8,182,256 km (0.088 R)
• M13: 9,429,303 km (0.113 R)
• M14: 10,019,317 km (0.091 R)
• M15: 11,620,314 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.5

Radius: 13.5

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.53 AU - 2.51 AU

Year: 1947 Days

Day: 8 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,146,930 km

• M1: 167,849 km (0.078 R)
• M2: 637,287 km (0.05 R)
• M3: 1,121,834 km (0.114 R)
• M4: 1,818,362 km (0.086 R)
• M5: 2,559,021 km (0.079 R)
• M6: 3,190,025 km (0.084 R)
• M7: 3,695,367 km (0.065 R)
• M8: 5,187,755 km (0.119 R)
• M9: 5,938,437 km (0.12 R)
• M10: 6,402,789 km (0.082 R)
• M11: 6,944,333 km (0.115 R)
• M12: 9,164,964 km (0.116 R)
• M13: 9,787,141 km (0.071 R)
• M14: 10,934,707 km (0.112 R)
• M15: 11,485,227 km (0.114 R)
• M16: 13,372,105 km (0.058 R)
• M17: 14,130,566 km (0.074 R)
• M18: 14,917,301 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.9

Radius: 5.6

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.14 AU - 9 AU

Year: 15549 Days

Day: 18.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 72,146,930 km

• M1: 69,713 km (0.106 R)
• M2: 268,528 km (0.076 R)
• M3: 532,419 km (0.082 R)
• M4: 707,897 km (0.089 R)
• M5: 1,113,008 km (0.096 R)
• M6: 1,675,945 km (0.089 R)
• M7: 1,978,282 km (0.095 R)
• M8: 2,187,570 km (0.073 R)
• M9: 2,529,401 km (0.097 R)
• M10: 2,713,406 km (0.061 R)
• M11: 3,017,239 km (0.07 R)
• M12: 3,224,433 km (0.045 R)
• M13: 3,957,612 km (0.088 R)
• M14: 4,889,606 km (0.077 R)
• M15: 6,323,801 km (0.108 R)
• M16: 7,716,408 km (0.12 R)
• M17: 8,193,326 km (0.117 R)
• M18: 9,205,804 km (0.116 R)
• M19: 9,398,486 km (0.034 R)
• M20: 12,328,510 km (0.082 R)
• M21: 13,040,147 km (0.099 R)
• M22: 13,222,208 km (0.039 R)
• M23: 14,480,027 km (0.08 R)
• M24: 15,406,636 km (0.085 R)
• M25: 16,797,896 km (0.068 R)
• M26: 18,806,248 km (0.054 R)
• M27: 22,499,969 km (0.088 R)
• M28: 22,850,028 km (0.08 R)
• M29: 25,402,466 km (0.118 R)
• M30: 27,937,253 km (0.09 R)
• M31: 29,473,772 km (0.114 R)
• M32: 30,315,859 km (0.108 R)
• M33: 30,528,886 km (0.116 R)
• M34: 36,906,393 km (0.098 R)
• M35: 37,761,195 km (0.111 R)
• M36: 40,533,393 km (0.114 R)
• M37: 44,528,105 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 536.2

Radius: 6

Gravity: 14.89 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.57 AU - 12.07 AU

Year: 20872 Days

Day: 17.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,146,930 km

• M1: 75,098 km (0.102 R)
• M2: 268,229 km (0.1 R)
• M3: 634,145 km (0.051 R)
• M4: 1,147,565 km (0.059 R)
• M5: 1,356,105 km (0.09 R)
• M6: 1,725,462 km (0.119 R)
• M7: 2,664,637 km (0.103 R)
• M8: 2,982,982 km (0.113 R)
• M9: 3,353,835 km (0.094 R)
• M10: 3,936,369 km (0.082 R)
• M11: 4,382,918 km (0.114 R)
• M12: 5,300,701 km (0.115 R)
• M13: 7,321,170 km (0.103 R)
• M14: 9,356,599 km (0.101 R)
• M15: 10,503,715 km (0.11 R)
• M16: 12,065,667 km (0.098 R)
• M17: 14,876,760 km (0.082 R)
• M18: 16,113,935 km (0.094 R)
• M19: 19,958,899 km (0.047 R)
• M20: 25,221,603 km (0.071 R)
• M21: 34,938,583 km (0.097 R)
• M22: 36,151,522 km (0.077 R)
• M23: 36,837,428 km (0.103 R)
• M24: 42,792,172 km (0.099 R)
• M25: 45,121,710 km (0.094 R)
• M26: 46,882,776 km (0.093 R)
• M27: 55,649,211 km (0.1 R)
• M28: 57,487,320 km (0.097 R)
• M29: 59,936,686 km (0.069 R)
• M30: 62,454,867 km (0.095 R)
• M31: 65,853,132 km (0.111 R)
• M32: 67,494,071 km (0.076 R)
• M33: 68,533,328 km (0.099 R)
• M34: 70,218,398 km (0.06 R)
• M35: 70,430,977 km (0.091 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 13,687 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit