🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.6

Radius: 9.7

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.99 AU - 1.41 AU

Year: 849 Days

Day: 12.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,725,740 km

• M1: 121,174 km (0.116 R)
• M2: 591,959 km (0.063 R)
• M3: 965,804 km (0.072 R)
• M4: 1,751,193 km (0.098 R)
• M5: 2,362,898 km (0.12 R)
• M6: 3,379,117 km (0.104 R)
• M7: 3,707,634 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.6

Radius: 10.7

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.28 AU - 1.52 AU

Year: 1070 Days

Day: 13.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,725,740 km

• M1: 133,142 km (0.086 R)
• M2: 476,768 km (0.094 R)
• M3: 907,012 km (0.06 R)
• M4: 1,350,420 km (0.071 R)
• M5: 1,809,237 km (0.113 R)
• M6: 2,302,012 km (0.085 R)
• M7: 2,687,526 km (0.085 R)
• M8: 3,347,402 km (0.101 R)
• M9: 3,684,296 km (0.106 R)
• M10: 4,044,079 km (0.067 R)
• M11: 4,499,754 km (0.115 R)
• M12: 5,812,027 km (0.085 R)
• M13: 6,486,414 km (0.109 R)
• M14: 6,915,760 km (0.101 R)
• M15: 7,725,832 km (0.048 R)
• M16: 8,153,982 km (0.095 R)
• M17: 9,748,096 km (0.113 R)
• M18: 10,898,205 km (0.037 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.1

Radius: 9.2

Gravity: 11.33 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.35 AU - 1.51 AU

Year: 1104 Days

Day: 11.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,725,740 km

• M1: 115,340 km (0.114 R)
• M2: 438,023 km (0.042 R)
• M3: 1,134,849 km (0.084 R)
• M4: 1,433,148 km (0.117 R)
• M5: 1,784,553 km (0.093 R)
• M6: 2,159,894 km (0.091 R)
• M7: 2,808,700 km (0.092 R)
• M8: 3,925,149 km (0.052 R)
• M9: 4,910,251 km (0.092 R)
• M10: 5,545,593 km (0.068 R)
• M11: 6,006,504 km (0.075 R)
• M12: 6,564,355 km (0.099 R)
• M13: 6,980,087 km (0.068 R)
• M14: 7,439,502 km (0.091 R)
• M15: 9,147,461 km (0.119 R)
• M16: 9,917,740 km (0.069 R)
• M17: 10,367,581 km (0.083 R)
• M18: 10,864,695 km (0.112 R)
• M19: 11,552,247 km (0.117 R)
• M20: 12,195,368 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.9

Radius: 8.8

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.84 AU - 2.5 AU

Year: 2064 Days

Day: 14.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,725,740 km

• M1: 112,348 km (0.092 R)
• M2: 444,455 km (0.117 R)
• M3: 1,022,801 km (0.075 R)
• M4: 1,763,609 km (0.045 R)
• M5: 2,101,401 km (0.072 R)
• M6: 2,537,329 km (0.051 R)
• M7: 3,237,597 km (0.115 R)
• M8: 3,733,664 km (0.106 R)
• M9: 4,138,176 km (0.106 R)
• M10: 5,035,315 km (0.093 R)
• M11: 6,637,957 km (0.08 R)
• M12: 6,942,239 km (0.088 R)
• M13: 7,887,398 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.1

Radius: 14.5

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.88 AU - 2.5 AU

Year: 2093 Days

Day: 6.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 60.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,725,740 km

• M1: 180,415 km (0.098 R)
• M2: 708,496 km (0.097 R)
• M3: 1,369,718 km (0.08 R)
• M4: 2,074,922 km (0.05 R)
• M5: 2,625,891 km (0.107 R)
• M6: 3,375,377 km (0.115 R)
• M7: 4,851,758 km (0.115 R)
• M8: 5,960,278 km (0.095 R)
• M9: 7,116,670 km (0.094 R)
• M10: 7,824,567 km (0.103 R)
• M11: 8,354,143 km (0.115 R)
• M12: 10,716,443 km (0.12 R)
• M13: 11,175,559 km (0.069 R)
• M14: 11,767,967 km (0.086 R)
• M15: 12,717,165 km (0.099 R)
• M16: 13,583,487 km (0.12 R)
• M17: 14,442,627 km (0.089 R)
• M18: 15,098,614 km (0.08 R)
• M19: 16,070,102 km (0.054 R)
• M20: 16,979,807 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.5

Radius: 14.1

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.75 AU - 6.23 AU

Year: 7197 Days

Day: 13.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,725,740 km

• M1: 175,329 km (0.08 R)
• M2: 634,295 km (0.087 R)
• M3: 1,157,289 km (0.075 R)
• M4: 1,611,019 km (0.106 R)
• M5: 2,335,821 km (0.064 R)
• M6: 3,212,913 km (0.086 R)
• M7: 3,803,975 km (0.055 R)
• M8: 4,588,915 km (0.054 R)
• M9: 5,287,387 km (0.097 R)
• M10: 5,734,086 km (0.091 R)
• M11: 7,161,699 km (0.076 R)
• M12: 9,047,978 km (0.084 R)
• M13: 12,470,479 km (0.059 R)
• M14: 18,077,556 km (0.065 R)
• M15: 19,162,889 km (0.095 R)
• M16: 23,342,803 km (0.06 R)
• M17: 25,645,114 km (0.104 R)
• M18: 27,015,131 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 229.8

Radius: 7.5

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 5.51 AU - 7.39 AU

Year: 10577 Days

Day: 18.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,725,740 km

• M1: 93,349 km (0.031 R)
• M2: 470,485 km (0.119 R)
• M3: 802,593 km (0.114 R)
• M4: 1,042,996 km (0.076 R)
• M5: 1,366,577 km (0.118 R)
• M6: 2,400,896 km (0.104 R)
• M7: 3,111,337 km (0.1 R)
• M8: 3,812,053 km (0.062 R)
• M9: 4,051,410 km (0.069 R)
• M10: 6,580,362 km (0.09 R)
• M11: 7,578,479 km (0.098 R)
• M12: 9,606,427 km (0.112 R)
• M13: 11,079,368 km (0.031 R)
• M14: 11,971,121 km (0.049 R)
• M15: 12,382,365 km (0.076 R)
• M16: 13,397,088 km (0.116 R)
• M17: 15,591,090 km (0.12 R)
• M18: 16,519,494 km (0.089 R)
• M19: 18,554,175 km (0.038 R)
• M20: 19,174,857 km (0.052 R)
• M21: 20,095,632 km (0.079 R)
• M22: 23,034,931 km (0.116 R)
• M23: 23,913,220 km (0.071 R)
• M24: 25,398,128 km (0.032 R)
• M25: 30,791,131 km (0.054 R)
• M26: 31,466,117 km (0.028 R)
• M27: 32,150,976 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.7

Radius: 5.9

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.9 AU - 8.18 AU

Year: 14720 Days

Day: 21.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 71,725,740 km

• M1: 73,901 km (0.11 R)
• M2: 293,511 km (0.027 R)
• M3: 534,364 km (0.032 R)
• M4: 775,366 km (0.067 R)
• M5: 1,230,891 km (0.09 R)
• M6: 1,721,572 km (0.1 R)
• M7: 2,412,714 km (0.101 R)
• M8: 2,832,037 km (0.099 R)
• M9: 3,761,190 km (0.037 R)
• M10: 6,239,428 km (0.074 R)
• M11: 7,027,360 km (0.06 R)
• M12: 8,562,683 km (0.101 R)
• M13: 8,894,641 km (0.078 R)
• M14: 10,468,859 km (0.116 R)
• M15: 12,519,696 km (0.091 R)
• M16: 15,511,055 km (0.074 R)
• M17: 21,877,791 km (0.116 R)
• M18: 22,587,782 km (0.098 R)
• M19: 23,313,033 km (0.095 R)
• M20: 26,569,180 km (0.119 R)
• M21: 27,072,278 km (0.066 R)
• M22: 29,254,761 km (0.085 R)
• M23: 32,571,944 km (0.081 R)
• M24: 33,148,195 km (0.084 R)
• M25: 35,521,117 km (0.112 R)
• M26: 36,254,446 km (0.111 R)
• M27: 39,289,188 km (0.059 R)
• M28: 40,469,515 km (0.108 R)
• M29: 46,002,392 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.3

Radius: 4.5

Gravity: 19.72 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 10.99 AU - 11.27 AU

Year: 23975 Days

Day: 15.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,725,740 km

• M1: 55,950 km (0.1 R)
• M2: 209,886 km (0.115 R)
• M3: 366,365 km (0.109 R)
• M4: 509,680 km (0.065 R)
• M5: 798,404 km (0.111 R)
• M6: 1,258,417 km (0.083 R)
• M7: 1,482,365 km (0.111 R)
• M8: 1,697,637 km (0.032 R)
• M9: 2,150,021 km (0.11 R)
• M10: 4,209,983 km (0.117 R)
• M11: 4,746,740 km (0.048 R)
• M12: 6,586,944 km (0.113 R)
• M13: 8,695,975 km (0.117 R)
• M14: 17,054,307 km (0.076 R)
• M15: 17,469,591 km (0.07 R)
• M16: 17,891,606 km (0.07 R)
• M17: 22,195,836 km (0.103 R)
• M18: 22,591,223 km (0.111 R)
• M19: 26,473,587 km (0.115 R)
• M20: 27,367,734 km (0.089 R)
• M21: 28,513,504 km (0.08 R)
• M22: 29,216,165 km (0.059 R)
• M23: 36,613,480 km (0.067 R)
• M24: 37,443,300 km (0.074 R)
• M25: 53,002,974 km (0.105 R)
• M26: 58,076,736 km (0.083 R)
• M27: 59,393,945 km (0.054 R)
• M28: 60,538,668 km (0.102 R)
• M29: 66,893,436 km (0.062 R)
• M30: 68,757,575 km (0.098 R)
• M31: 69,808,051 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 292 - 19,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit