🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.9

Radius: 13.3

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.68 AU - 0.9 AU

Year: 485 Days

Day: 12 Hours

Environment

Temp: -158 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,585,494 km

• M1: 166,054 km (0.105 R)
• M2: 636,090 km (0.12 R)
• M3: 1,154,447 km (0.093 R)
• M4: 1,844,093 km (0.076 R)
• M5: 2,690,518 km (0.077 R)
• M6: 3,227,574 km (0.118 R)
• M7: 4,297,648 km (0.112 R)
• M8: 4,843,979 km (0.083 R)
• M9: 6,039,864 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.4

Radius: 9.6

Gravity: 8.83 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.77 AU - 0.91 AU

Year: 531 Days

Day: 6.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,585,494 km

• M1: 119,379 km (0.074 R)
• M2: 512,672 km (0.102 R)
• M3: 929,302 km (0.088 R)
• M4: 1,236,426 km (0.114 R)
• M5: 1,875,060 km (0.087 R)
• M6: 2,269,998 km (0.114 R)
• M7: 2,774,741 km (0.059 R)
• M8: 3,302,822 km (0.108 R)
• M9: 4,080,880 km (0.073 R)
• M10: 4,498,109 km (0.117 R)
• M11: 5,296,961 km (0.041 R)
• M12: 6,518,578 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.3

Radius: 13.5

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.8 AU - 1.14 AU

Year: 659 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,585,494 km

• M1: 167,849 km (0.091 R)
• M2: 610,659 km (0.072 R)
• M3: 1,362,537 km (0.103 R)
• M4: 1,861,596 km (0.093 R)
• M5: 2,456,995 km (0.026 R)
• M6: 2,883,499 km (0.11 R)
• M7: 3,448,081 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.1

Radius: 11.3

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.42 AU - 3.58 AU

Year: 3587 Days

Day: 6.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,585,494 km

• M1: 141,370 km (0.108 R)
• M2: 530,175 km (0.052 R)
• M3: 946,655 km (0.119 R)
• M4: 1,495,530 km (0.026 R)
• M5: 1,962,574 km (0.119 R)
• M6: 2,474,199 km (0.113 R)
• M7: 3,043,718 km (0.088 R)
• M8: 4,465,796 km (0.119 R)
• M9: 6,363,744 km (0.056 R)
• M10: 6,717,393 km (0.109 R)
• M11: 8,997,414 km (0.041 R)
• M12: 9,871,664 km (0.118 R)
• M13: 13,279,504 km (0.119 R)
• M14: 14,197,885 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.7

Radius: 13.5

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.89 AU - 3.67 AU

Year: 4100 Days

Day: 14.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,585,494 km

• M1: 167,998 km (0.08 R)
• M2: 679,623 km (0.114 R)
• M3: 1,255,575 km (0.085 R)
• M4: 2,226,016 km (0.12 R)
• M5: 2,884,247 km (0.074 R)
• M6: 3,386,597 km (0.117 R)
• M7: 4,308,568 km (0.101 R)
• M8: 5,098,445 km (0.092 R)
• M9: 5,752,637 km (0.096 R)
• M10: 7,914,625 km (0.116 R)
• M11: 8,493,569 km (0.062 R)
• M12: 9,335,805 km (0.064 R)
• M13: 11,963,791 km (0.114 R)
• M14: 14,142,534 km (0.074 R)
• M15: 16,055,591 km (0.082 R)
• M16: 16,574,247 km (0.098 R)
• M17: 20,862,470 km (0.069 R)
• M18: 22,466,159 km (0.116 R)
• M19: 26,075,657 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.9

Radius: 14.1

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.03 AU - 5.73 AU

Year: 8614 Days

Day: 7.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,585,494 km

• M1: 175,329 km (0.067 R)
• M2: 635,492 km (0.104 R)
• M3: 1,223,112 km (0.056 R)
• M4: 1,690,456 km (0.112 R)
• M5: 2,248,606 km (0.041 R)
• M6: 2,910,576 km (0.032 R)
• M7: 3,548,761 km (0.114 R)
• M8: 4,040,638 km (0.086 R)
• M9: 4,578,144 km (0.12 R)
• M10: 6,355,666 km (0.119 R)
• M11: 7,983,290 km (0.113 R)
• M12: 8,479,058 km (0.098 R)
• M13: 9,282,099 km (0.06 R)
• M14: 10,223,518 km (0.053 R)
• M15: 10,672,013 km (0.03 R)
• M16: 12,650,445 km (0.05 R)
• M17: 13,538,757 km (0.084 R)
• M18: 15,615,624 km (0.08 R)
• M19: 22,131,808 km (0.096 R)
• M20: 22,884,435 km (0.093 R)
• M21: 23,498,983 km (0.118 R)
• M22: 29,897,434 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.2

Radius: 3

Gravity: 68.58 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.85 AU - 9.35 AU

Year: 15913 Days

Day: 18.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 41,585,494 km

• M1: 39,793 km (0.08 R)
• M2: 146,307 km (0.079 R)
• M3: 258,804 km (0.097 R)
• M4: 469,887 km (0.107 R)
• M5: 835,055 km (0.066 R)
• M6: 1,989,652 km (0.104 R)
• M7: 2,582,209 km (0.109 R)
• M8: 2,695,155 km (0.119 R)
• M9: 3,205,882 km (0.091 R)
• M10: 3,807,116 km (0.106 R)
• M11: 4,103,769 km (0.092 R)
• M12: 5,086,328 km (0.03 R)
• M13: 6,135,757 km (0.085 R)
• M14: 6,378,105 km (0.083 R)
• M15: 6,795,932 km (0.12 R)
• M16: 7,011,652 km (0.072 R)
• M17: 9,267,588 km (0.091 R)
• M18: 9,912,505 km (0.091 R)
• M19: 11,053,188 km (0.114 R)
• M20: 11,291,348 km (0.111 R)
• M21: 11,472,212 km (0.093 R)
• M22: 11,716,356 km (0.104 R)
• M23: 12,533,758 km (0.033 R)
• M24: 14,071,924 km (0.049 R)
• M25: 14,492,892 km (0.102 R)
• M26: 16,032,553 km (0.112 R)
• M27: 16,881,073 km (0.109 R)
• M28: 22,799,912 km (0.1 R)
• M29: 27,502,821 km (0.087 R)
• M30: 29,620,378 km (0.117 R)
• M31: 29,964,454 km (0.109 R)
• M32: 30,543,696 km (0.113 R)
• M33: 33,552,110 km (0.047 R)
• M34: 33,676,276 km (0.095 R)
• M35: 35,836,320 km (0.039 R)
• M36: 49,949,383 km (0.059 R)
• M37: 51,917,343 km (0.102 R)
• M38: 55,832,169 km (0.1 R)
• M39: 59,029,824 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 505.5

Radius: 4.5

Gravity: 24.96 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 8.41 AU - 10.23 AU

Year: 19640 Days

Day: 19.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,585,494 km

• M1: 55,950 km (0.117 R)
• M2: 551,567 km (0.12 R)
• M3: 693,536 km (0.07 R)
• M4: 1,129,314 km (0.107 R)
• M5: 2,562,312 km (0.082 R)
• M6: 3,663,951 km (0.041 R)
• M7: 6,880,455 km (0.094 R)
• M8: 7,193,264 km (0.099 R)
• M9: 8,041,334 km (0.115 R)
• M10: 9,435,437 km (0.094 R)
• M11: 9,877,648 km (0.119 R)
• M12: 11,043,464 km (0.093 R)
• M13: 12,959,664 km (0.097 R)
• M14: 15,614,278 km (0.083 R)
• M15: 17,108,760 km (0.078 R)
• M16: 18,524,555 km (0.066 R)
• M17: 28,690,628 km (0.08 R)
• M18: 42,927,707 km (0.102 R)
• M19: 51,712,094 km (0.093 R)
• M20: 55,893,654 km (0.097 R)
• M21: 57,518,137 km (0.064 R)
• M22: 60,295,123 km (0.086 R)
• M23: 67,524,440 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.3

Radius: 5.9

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 8.37 AU - 12.45 AU

Year: 23184 Days

Day: 16.9 Hours

Environment

Temp: -245 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 41,585,494 km

• M1: 73,752 km (0.063 R)
• M2: 273,764 km (0.088 R)
• M3: 567,874 km (0.104 R)
• M4: 938,577 km (0.056 R)
• M5: 1,444,966 km (0.069 R)
• M6: 1,897,051 km (0.102 R)
• M7: 2,502,922 km (0.075 R)
• M8: 3,229,968 km (0.069 R)
• M9: 4,059,189 km (0.046 R)
• M10: 5,161,426 km (0.114 R)
• M11: 5,973,144 km (0.092 R)
• M12: 6,208,611 km (0.089 R)
• M13: 7,570,699 km (0.095 R)
• M14: 8,273,061 km (0.104 R)
• M15: 8,865,619 km (0.077 R)
• M16: 9,120,683 km (0.085 R)
• M17: 9,752,884 km (0.117 R)
• M18: 11,163,292 km (0.062 R)
• M19: 12,898,328 km (0.107 R)
• M20: 13,898,091 km (0.079 R)
• M21: 14,522,064 km (0.086 R)
• M22: 15,310,145 km (0.088 R)
• M23: 17,127,610 km (0.113 R)
• M24: 18,498,824 km (0.068 R)
• M25: 26,360,491 km (0.029 R)
• M26: 27,638,955 km (0.107 R)
• M27: 28,514,102 km (0.118 R)
• M28: 28,846,957 km (0.035 R)
• M29: 30,434,640 km (0.096 R)
• M30: 31,249,948 km (0.11 R)
• M31: 31,841,009 km (0.115 R)
• M32: 32,923,948 km (0.105 R)
• M33: 33,906,956 km (0.09 R)
• M34: 35,802,510 km (0.054 R)
• M35: 36,189,969 km (0.095 R)
• M36: 39,803,505 km (0.054 R)
• M37: 44,537,680 km (0.086 R)
• M38: 49,473,961 km (0.111 R)
• M39: 54,591,853 km (0.077 R)
• M40: 55,105,124 km (0.075 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.8

Radius: 7.1

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 7.88 AU - 13.06 AU

Year: 23385 Days

Day: 16 Hours

Environment

Temp: -236 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,585,494 km

• M1: 88,412 km (0.071 R)
• M2: 395,986 km (0.12 R)
• M3: 1,324,540 km (0.097 R)
• M4: 1,762,861 km (0.054 R)
• M5: 3,527,667 km (0.087 R)
• M6: 4,910,849 km (0.107 R)
• M7: 5,464,361 km (0.034 R)
• M8: 9,369,015 km (0.119 R)
• M9: 9,930,456 km (0.103 R)
• M10: 11,856,678 km (0.115 R)
• M11: 12,737,511 km (0.088 R)
• M12: 14,567,242 km (0.12 R)
• M13: 16,565,421 km (0.079 R)
• M14: 17,385,666 km (0.059 R)
• M15: 18,739,377 km (0.027 R)
• M16: 20,315,840 km (0.108 R)
• M17: 21,574,855 km (0.103 R)
• M18: 26,299,156 km (0.106 R)
• M19: 33,899,476 km (0.098 R)
• M20: 37,263,184 km (0.101 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 10,885 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit