🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250

Radius: 8.7

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.65 AU - 0.73 AU

Year: 403 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,347,462 km

• M1: 114,592 km (0.074 R)
• M2: 394,340 km (0.037 R)
• M3: 675,135 km (0.089 R)
• M4: 975,677 km (0.09 R)
• M5: 1,334,563 km (0.114 R)
• M6: 1,708,557 km (0.048 R)
• M7: 2,076,568 km (0.089 R)
• M8: 2,556,777 km (0.062 R)
• M9: 3,178,656 km (0.049 R)
• M10: 3,574,192 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.9

Radius: 11.5

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.66 AU - 0.84 AU

Year: 457 Days

Day: 11.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,347,462 km

• M1: 143,016 km (0.076 R)
• M2: 527,482 km (0.043 R)
• M3: 1,206,507 km (0.086 R)
• M4: 1,595,312 km (0.091 R)
• M5: 3,183,443 km (0.109 R)
• M6: 3,765,528 km (0.081 R)
• M7: 4,770,975 km (0.084 R)
• M8: 5,413,947 km (0.078 R)
• M9: 5,910,612 km (0.097 R)
• M10: 6,832,883 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.6

Radius: 9

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.7 AU - 0.88 AU

Year: 494 Days

Day: 10.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 168.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,347,462 km

• M1: 111,899 km (0.117 R)
• M2: 405,410 km (0.105 R)
• M3: 694,284 km (0.079 R)
• M4: 1,049,579 km (0.116 R)
• M5: 1,338,303 km (0.11 R)
• M6: 1,673,551 km (0.108 R)
• M7: 2,319,365 km (0.091 R)
• M8: 2,777,135 km (0.099 R)
• M9: 3,178,955 km (0.033 R)
• M10: 4,154,333 km (0.107 R)
• M11: 4,505,888 km (0.087 R)
• M12: 5,464,361 km (0.082 R)
• M13: 5,783,753 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.9

Radius: 10.8

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.97 AU - 4.17 AU

Year: 4741 Days

Day: 8.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,347,462 km

• M1: 158,275 km (0.067 R)
• M2: 561,142 km (0.105 R)
• M3: 1,102,237 km (0.102 R)
• M4: 2,140,596 km (0.049 R)
• M5: 4,224,345 km (0.029 R)
• M6: 4,638,132 km (0.083 R)
• M7: 5,126,869 km (0.105 R)
• M8: 5,675,594 km (0.086 R)
• M9: 6,235,538 km (0.12 R)
• M10: 9,205,804 km (0.085 R)
• M11: 9,605,829 km (0.085 R)
• M12: 11,573,490 km (0.059 R)
• M13: 12,256,105 km (0.083 R)
• M14: 13,515,420 km (0.111 R)
• M15: 17,366,218 km (0.083 R)
• M16: 17,978,373 km (0.047 R)
• M17: 18,720,079 km (0.094 R)
• M18: 20,387,198 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.4

Radius: 11.8

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 4.2 AU - 5.02 AU

Year: 6958 Days

Day: 5.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,347,462 km

• M1: 146,756 km (0.04 R)
• M2: 712,086 km (0.078 R)
• M3: 1,576,911 km (0.059 R)
• M4: 2,093,024 km (0.079 R)
• M5: 2,574,879 km (0.073 R)
• M6: 2,969,368 km (0.087 R)
• M7: 3,514,353 km (0.041 R)
• M8: 4,404,610 km (0.104 R)
• M9: 5,807,539 km (0.111 R)
• M10: 6,907,981 km (0.029 R)
• M11: 8,102,969 km (0.1 R)
• M12: 9,562,745 km (0.076 R)
• M13: 11,789,509 km (0.089 R)
• M14: 13,714,385 km (0.098 R)
• M15: 14,751,696 km (0.108 R)
• M16: 15,532,897 km (0.082 R)
• M17: 17,177,875 km (0.107 R)
• M18: 21,947,803 km (0.093 R)
• M19: 25,605,920 km (0.06 R)
• M20: 26,296,314 km (0.069 R)
• M21: 28,350,442 km (0.052 R)
• M22: 28,996,256 km (0.05 R)
• M23: 30,126,318 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249.7

Radius: 5

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 6.08 AU - 7.24 AU

Year: 12081 Days

Day: 24.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,347,462 km

• M1: 62,382 km (0.092 R)
• M2: 486,492 km (0.092 R)
• M3: 791,971 km (0.057 R)
• M4: 1,173,296 km (0.025 R)
• M5: 1,418,038 km (0.043 R)
• M6: 1,767,948 km (0.077 R)
• M7: 2,874,074 km (0.088 R)
• M8: 6,339,659 km (0.12 R)
• M9: 6,982,331 km (0.063 R)
• M10: 7,589,250 km (0.093 R)
• M11: 7,986,133 km (0.098 R)
• M12: 11,059,621 km (0.078 R)
• M13: 12,912,391 km (0.08 R)
• M14: 18,606,684 km (0.098 R)
• M15: 25,863,228 km (0.116 R)
• M16: 28,900,962 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.3

Radius: 7.2

Gravity: 10.63 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 6.39 AU - 7.05 AU

Year: 12245 Days

Day: 23.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,347,462 km

• M1: 89,908 km (0.088 R)
• M2: 314,305 km (0.117 R)
• M3: 547,977 km (0.069 R)
• M4: 914,492 km (0.113 R)
• M5: 1,465,012 km (0.083 R)
• M6: 2,056,672 km (0.08 R)
• M7: 2,311,287 km (0.08 R)
• M8: 2,841,013 km (0.086 R)
• M9: 4,253,965 km (0.066 R)
• M10: 4,888,110 km (0.072 R)
• M11: 5,145,718 km (0.088 R)
• M12: 6,230,751 km (0.082 R)
• M13: 7,716,707 km (0.109 R)
• M14: 8,336,042 km (0.11 R)
• M15: 8,611,302 km (0.105 R)
• M16: 10,132,114 km (0.03 R)
• M17: 10,605,292 km (0.119 R)
• M18: 11,038,079 km (0.09 R)
• M19: 14,602,547 km (0.058 R)
• M20: 18,015,922 km (0.031 R)
• M21: 18,945,673 km (0.038 R)
• M22: 20,816,394 km (0.113 R)
• M23: 24,171,426 km (0.095 R)
• M24: 29,217,661 km (0.053 R)
• M25: 33,867,013 km (0.104 R)
• M26: 35,640,346 km (0.07 R)
• M27: 37,848,860 km (0.057 R)
• M28: 38,604,778 km (0.086 R)
• M29: 41,863,468 km (0.061 R)
• M30: 45,442,298 km (0.116 R)
• M31: 46,296,203 km (0.068 R)
• M32: 47,305,839 km (0.102 R)
• M33: 47,596,956 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451.9

Radius: 5.8

Gravity: 13.43 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 6.58 AU - 7.14 AU

Year: 12630 Days

Day: 17.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,347,462 km

• M1: 72,106 km (0.074 R)
• M2: 286,929 km (0.037 R)
• M3: 728,392 km (0.114 R)
• M4: 1,247,197 km (0.082 R)
• M5: 2,578,170 km (0.115 R)
• M6: 2,871,980 km (0.092 R)
• M7: 3,141,256 km (0.101 R)
• M8: 3,378,518 km (0.104 R)
• M9: 3,862,318 km (0.083 R)
• M10: 4,841,585 km (0.108 R)
• M11: 5,799,610 km (0.105 R)
• M12: 6,379,152 km (0.09 R)
• M13: 8,530,220 km (0.057 R)
• M14: 9,718,775 km (0.065 R)
• M15: 10,482,622 km (0.115 R)
• M16: 10,692,957 km (0.057 R)
• M17: 10,906,134 km (0.086 R)
• M18: 12,129,395 km (0.034 R)
• M19: 12,361,272 km (0.103 R)
• M20: 13,135,291 km (0.039 R)
• M21: 14,004,605 km (0.115 R)
• M22: 15,177,751 km (0.063 R)
• M23: 16,064,717 km (0.105 R)
• M24: 18,700,781 km (0.072 R)
• M25: 19,323,407 km (0.078 R)
• M26: 19,639,807 km (0.055 R)
• M27: 24,348,849 km (0.107 R)
• M28: 27,908,081 km (0.093 R)
• M29: 28,312,444 km (0.068 R)
• M30: 28,823,321 km (0.085 R)
• M31: 32,462,289 km (0.114 R)
• M32: 36,878,717 km (0.066 R)
• M33: 40,377,961 km (0.057 R)
• M34: 40,636,018 km (0.104 R)
• M35: 43,955,744 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 758.2

Radius: 5.4

Gravity: 26 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.79 AU - 9.87 AU

Year: 16900 Days

Day: 22.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 70,347,462 km

• M1: 67,169 km (0.108 R)
• M2: 314,006 km (0.112 R)
• M3: 534,214 km (0.116 R)
• M4: 765,642 km (0.108 R)
• M5: 967,599 km (0.056 R)
• M6: 1,165,218 km (0.092 R)
• M7: 1,711,250 km (0.056 R)
• M8: 2,829,494 km (0.109 R)
• M9: 3,184,939 km (0.051 R)
• M10: 3,743,836 km (0.06 R)
• M11: 4,109,154 km (0.119 R)
• M12: 5,090,367 km (0.102 R)
• M13: 5,538,861 km (0.116 R)
• M14: 7,363,806 km (0.111 R)
• M15: 8,285,029 km (0.069 R)
• M16: 8,904,963 km (0.068 R)
• M17: 9,280,603 km (0.051 R)
• M18: 10,006,302 km (0.105 R)
• M19: 11,011,301 km (0.114 R)
• M20: 12,081,823 km (0.112 R)
• M21: 12,409,443 km (0.109 R)
• M22: 13,428,054 km (0.075 R)
• M23: 14,427,967 km (0.097 R)
• M24: 14,722,525 km (0.057 R)
• M25: 19,726,424 km (0.105 R)
• M26: 20,180,753 km (0.119 R)
• M27: 22,755,631 km (0.058 R)
• M28: 23,154,908 km (0.108 R)
• M29: 25,756,415 km (0.052 R)
• M30: 32,908,390 km (0.087 R)
• M31: 38,112,900 km (0.114 R)
• M32: 39,818,316 km (0.041 R)
• M33: 52,333,075 km (0.094 R)
• M34: 52,853,975 km (0.108 R)
• M35: 53,729,870 km (0.08 R)
• M36: 60,323,696 km (0.09 R)
• M37: 62,636,180 km (0.089 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 17,717 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit