🌌 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: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.7

Radius: 14.3

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.7 AU - 0.84 AU

Year: 443 Days

Day: 12.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,551,440 km

• M1: 177,872 km (0.105 R)
• M2: 458,069 km (0.111 R)
• M3: 750,233 km (0.108 R)
• M4: 1,057,507 km (0.119 R)
• M5: 1,357,002 km (0.114 R)
• M6: 1,736,382 km (0.08 R)
• M7: 2,330,735 km (0.065 R)
• M8: 2,726,720 km (0.092 R)
• M9: 3,272,154 km (0.112 R)
• M10: 3,727,829 km (0.098 R)
• M11: 4,256,658 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.1

Radius: 9.9

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.89 AU - 1.31 AU

Year: 757 Days

Day: 10.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,551,440 km

• M1: 123,867 km (0.111 R)
• M2: 509,830 km (0.061 R)
• M3: 858,542 km (0.105 R)
• M4: 1,357,601 km (0.104 R)
• M5: 1,618,948 km (0.111 R)
• M6: 1,804,599 km (0.084 R)
• M7: 2,251,149 km (0.103 R)
• M8: 2,444,579 km (0.066 R)
• M9: 3,156,665 km (0.096 R)
• M10: 3,515,700 km (0.078 R)
• M11: 3,792,605 km (0.075 R)
• M12: 4,294,207 km (0.12 R)
• M13: 4,713,530 km (0.118 R)
• M14: 5,571,025 km (0.113 R)
• M15: 5,765,352 km (0.056 R)
• M16: 6,135,158 km (0.067 R)
• M17: 6,353,870 km (0.097 R)
• M18: 6,879,557 km (0.051 R)
• M19: 7,252,206 km (0.033 R)
• M20: 7,522,230 km (0.082 R)
• M21: 8,160,713 km (0.109 R)
• M22: 8,345,616 km (0.097 R)
• M23: 8,652,591 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.8

Radius: 12.1

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.49 AU - 1.69 AU

Year: 1315 Days

Day: 7.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,551,440 km

• M1: 154,086 km (0.11 R)
• M2: 473,627 km (0.077 R)
• M3: 754,272 km (0.027 R)
• M4: 1,031,178 km (0.071 R)
• M5: 1,481,617 km (0.096 R)
• M6: 1,775,577 km (0.039 R)
• M7: 2,052,333 km (0.119 R)
• M8: 2,411,069 km (0.055 R)
• M9: 3,635,527 km (0.117 R)
• M10: 4,022,388 km (0.045 R)
• M11: 4,598,339 km (0.076 R)
• M12: 5,773,730 km (0.072 R)
• M13: 6,379,601 km (0.114 R)
• M14: 7,193,713 km (0.119 R)
• M15: 7,646,994 km (0.071 R)
• M16: 8,001,093 km (0.071 R)
• M17: 8,305,524 km (0.05 R)
• M18: 8,753,420 km (0.055 R)
• M19: 9,092,110 km (0.059 R)
• M20: 9,622,883 km (0.091 R)
• M21: 11,083,108 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 9.9

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.65 AU - 1.75 AU

Year: 1454 Days

Day: 13.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,551,440 km

• M1: 146,157 km (0.079 R)
• M2: 361,877 km (0.116 R)
• M3: 572,661 km (0.12 R)
• M4: 766,240 km (0.082 R)
• M5: 1,032,375 km (0.107 R)
• M6: 1,420,133 km (0.094 R)
• M7: 1,823,448 km (0.064 R)
• M8: 2,154,509 km (0.106 R)
• M9: 2,442,484 km (0.084 R)
• M10: 2,738,838 km (0.106 R)
• M11: 3,064,363 km (0.064 R)
• M12: 3,252,258 km (0.101 R)
• M13: 3,594,837 km (0.102 R)
• M14: 3,968,532 km (0.047 R)
• M15: 4,210,133 km (0.056 R)
• M16: 4,963,957 km (0.105 R)
• M17: 5,926,918 km (0.083 R)
• M18: 6,306,298 km (0.096 R)
• M19: 6,854,126 km (0.119 R)
• M20: 7,226,325 km (0.066 R)
• M21: 7,553,196 km (0.059 R)
• M22: 7,943,946 km (0.064 R)
• M23: 8,402,763 km (0.071 R)
• M24: 8,914,537 km (0.099 R)
• M25: 9,155,988 km (0.119 R)
• M26: 9,586,381 km (0.045 R)
• M27: 10,782,865 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.2

Radius: 12

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.84 AU - 4.58 AU

Year: 5667 Days

Day: 5.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,551,440 km

• M1: 158,275 km (0.095 R)
• M2: 535,710 km (0.074 R)
• M3: 1,028,336 km (0.086 R)
• M4: 1,525,749 km (0.117 R)
• M5: 1,901,239 km (0.059 R)
• M6: 2,292,587 km (0.083 R)
• M7: 3,004,075 km (0.101 R)
• M8: 3,479,946 km (0.066 R)
• M9: 3,972,721 km (0.111 R)
• M10: 5,194,487 km (0.09 R)
• M11: 6,509,303 km (0.119 R)
• M12: 7,836,684 km (0.085 R)
• M13: 8,402,763 km (0.105 R)
• M14: 10,063,150 km (0.107 R)
• M15: 10,967,020 km (0.065 R)
• M16: 11,602,661 km (0.086 R)
• M17: 12,892,793 km (0.078 R)
• M18: 13,877,596 km (0.11 R)
• M19: 14,478,381 km (0.077 R)
• M20: 14,937,497 km (0.063 R)
• M21: 15,247,613 km (0.12 R)
• M22: 16,969,634 km (0.084 R)
• M23: 17,844,333 km (0.1 R)
• M24: 19,439,495 km (0.067 R)
• M25: 19,926,885 km (0.101 R)
• M26: 21,518,457 km (0.095 R)
• M27: 23,461,284 km (0.088 R)
• M28: 23,947,926 km (0.063 R)
• M29: 24,786,871 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.3

Radius: 12.7

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.53 AU - 6.59 AU

Year: 8600 Days

Day: 14.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,551,440 km

• M1: 182,659 km (0.054 R)
• M2: 817,552 km (0.078 R)
• M3: 2,004,911 km (0.097 R)
• M4: 7,082,113 km (0.109 R)
• M5: 7,812,898 km (0.065 R)
• M6: 9,549,430 km (0.106 R)
• M7: 10,328,087 km (0.106 R)
• M8: 11,245,870 km (0.098 R)
• M9: 12,090,650 km (0.094 R)
• M10: 13,953,741 km (0.089 R)
• M11: 14,728,509 km (0.108 R)
• M12: 14,977,589 km (0.111 R)
• M13: 17,856,600 km (0.108 R)
• M14: 18,966,916 km (0.066 R)
• M15: 19,297,078 km (0.062 R)
• M16: 20,159,211 km (0.106 R)
• M17: 22,449,105 km (0.107 R)
• M18: 23,535,635 km (0.073 R)
• M19: 24,755,306 km (0.11 R)
• M20: 25,513,019 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.5

Radius: 5.4

Gravity: 27.49 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 7.04 AU - 7.26 AU

Year: 12542 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 65,551,440 km

• M1: 77,043 km (0.079 R)
• M2: 433,385 km (0.106 R)
• M3: 1,058,704 km (0.084 R)
• M4: 1,200,822 km (0.113 R)
• M5: 2,461,334 km (0.102 R)
• M6: 3,335,135 km (0.037 R)
• M7: 3,617,875 km (0.047 R)
• M8: 5,104,279 km (0.088 R)
• M9: 5,926,170 km (0.087 R)
• M10: 6,113,018 km (0.057 R)
• M11: 8,318,390 km (0.088 R)
• M12: 9,083,433 km (0.084 R)
• M13: 10,319,112 km (0.104 R)
• M14: 12,754,116 km (0.075 R)
• M15: 14,212,546 km (0.09 R)
• M16: 14,794,631 km (0.1 R)
• M17: 15,871,885 km (0.082 R)
• M18: 17,816,358 km (0.041 R)
• M19: 18,731,449 km (0.111 R)
• M20: 19,941,845 km (0.046 R)
• M21: 20,078,577 km (0.092 R)
• M22: 20,979,456 km (0.071 R)
• M23: 25,548,624 km (0.026 R)
• M24: 28,327,105 km (0.119 R)
• M25: 28,653,827 km (0.117 R)
• M26: 29,064,922 km (0.077 R)
• M27: 29,230,078 km (0.083 R)
• M28: 31,937,649 km (0.099 R)
• M29: 33,779,648 km (0.083 R)
• M30: 34,765,348 km (0.054 R)
• M31: 40,878,965 km (0.043 R)
• M32: 42,459,915 km (0.109 R)
• M33: 53,917,017 km (0.102 R)
• M34: 54,029,515 km (0.072 R)
• M35: 56,188,811 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.2

Radius: 5.5

Gravity: 24.77 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.11 AU - 10.87 AU

Year: 17683 Days

Day: 22.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,551,440 km

• M1: 73,004 km (0.114 R)
• M2: 278,850 km (0.079 R)
• M3: 2,811,842 km (0.117 R)
• M4: 3,624,158 km (0.106 R)
• M5: 4,293,608 km (0.1 R)
• M6: 4,470,134 km (0.025 R)
• M7: 5,327,928 km (0.045 R)
• M8: 7,318,477 km (0.103 R)
• M9: 9,058,749 km (0.046 R)
• M10: 14,743,319 km (0.111 R)
• M11: 16,760,646 km (0.057 R)
• M12: 17,746,496 km (0.108 R)
• M13: 17,961,319 km (0.083 R)
• M14: 18,322,448 km (0.113 R)
• M15: 18,834,073 km (0.082 R)
• M16: 24,674,822 km (0.072 R)
• M17: 30,927,265 km (0.116 R)
• M18: 31,400,892 km (0.115 R)
• M19: 38,621,383 km (0.102 R)
• M20: 40,219,836 km (0.035 R)
• M21: 41,085,559 km (0.058 R)
• M22: 45,553,000 km (0.115 R)
• M23: 49,412,476 km (0.065 R)
• M24: 57,989,819 km (0.113 R)
• M25: 64,225,807 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863.5

Radius: 6.9

Gravity: 18.14 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 8.53 AU - 9.61 AU

Year: 17919 Days

Day: 20.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,551,440 km

• M1: 159,172 km (0.103 R)
• M2: 550,071 km (0.12 R)
• M3: 2,014,934 km (0.11 R)
• M4: 5,525,547 km (0.093 R)
• M5: 6,861,905 km (0.119 R)
• M6: 8,597,988 km (0.099 R)
• M7: 8,803,087 km (0.044 R)
• M8: 14,260,118 km (0.1 R)
• M9: 15,813,393 km (0.113 R)
• M10: 16,584,719 km (0.077 R)
• M11: 16,941,510 km (0.087 R)
• M12: 19,085,696 km (0.065 R)
• M13: 19,391,474 km (0.08 R)
• M14: 25,313,904 km (0.032 R)
• M15: 27,372,521 km (0.081 R)
• M16: 29,417,224 km (0.088 R)
• M17: 35,576,767 km (0.047 R)
• M18: 37,581,827 km (0.075 R)
• M19: 43,236,178 km (0.12 R)
• M20: 45,797,892 km (0.069 R)
• M21: 46,986,746 km (0.092 R)
• M22: 56,914,959 km (0.082 R)
• M23: 57,310,795 km (0.095 R)
• M24: 58,106,506 km (0.114 R)
• M25: 62,580,978 km (0.107 R)
• M26: 69,531,594 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 385.9

Radius: 5.5

Gravity: 12.76 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 9.42 AU - 10.94 AU

Year: 21307 Days

Day: 18.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,551,440 km

• M1: 109,356 km (0.11 R)
• M2: 697,276 km (0.08 R)
• M3: 804,238 km (0.06 R)
• M4: 1,541,756 km (0.069 R)
• M5: 2,285,407 km (0.105 R)
• M6: 2,532,991 km (0.049 R)
• M7: 2,635,615 km (0.11 R)
• M8: 4,597,741 km (0.109 R)
• M9: 6,942,538 km (0.075 R)
• M10: 8,744,594 km (0.044 R)
• M11: 9,623,930 km (0.081 R)
• M12: 18,601,598 km (0.084 R)
• M13: 20,021,281 km (0.084 R)
• M14: 22,020,956 km (0.041 R)
• M15: 25,077,989 km (0.062 R)
• M16: 25,402,766 km (0.069 R)
• M17: 27,649,875 km (0.119 R)
• M18: 43,777,573 km (0.119 R)
• M19: 51,356,351 km (0.062 R)
• M20: 52,170,911 km (0.088 R)
• M21: 55,252,478 km (0.074 R)
• M22: 61,427,578 km (0.099 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 12,448 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit