🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.1

Radius: 9.4

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.68 AU - 0.74 AU

Year: 392 Days

Day: 14.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 89,638,765 km

• M1: 117,883 km (0.097 R)
• M2: 458,517 km (0.109 R)
• M3: 761,603 km (0.095 R)
• M4: 1,329,027 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.8

Radius: 13.5

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.47 AU - 1.79 AU

Year: 1365 Days

Day: 5.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,638,765 km

• M1: 167,998 km (0.077 R)
• M2: 608,415 km (0.117 R)
• M3: 1,119,291 km (0.104 R)
• M4: 1,639,144 km (0.104 R)
• M5: 2,114,716 km (0.086 R)
• M6: 2,583,406 km (0.077 R)
• M7: 3,109,392 km (0.114 R)
• M8: 3,594,986 km (0.117 R)
• M9: 4,207,889 km (0.091 R)
• M10: 5,550,829 km (0.09 R)
• M11: 6,070,083 km (0.079 R)
• M12: 6,877,613 km (0.075 R)
• M13: 7,592,840 km (0.1 R)
• M14: 8,064,672 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.7

Radius: 9.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.86 AU - 2.5 AU

Year: 2112 Days

Day: 5.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,638,765 km

• M1: 124,765 km (0.084 R)
• M2: 435,629 km (0.103 R)
• M3: 1,072,018 km (0.107 R)
• M4: 1,854,714 km (0.051 R)
• M5: 2,785,064 km (0.058 R)
• M6: 3,156,515 km (0.087 R)
• M7: 4,098,982 km (0.088 R)
• M8: 4,911,896 km (0.1 R)
• M9: 5,317,157 km (0.108 R)
• M10: 5,661,531 km (0.031 R)
• M11: 6,328,140 km (0.072 R)
• M12: 6,668,923 km (0.093 R)
• M13: 7,512,356 km (0.076 R)
• M14: 8,317,342 km (0.05 R)
• M15: 10,470,505 km (0.093 R)
• M16: 10,819,666 km (0.04 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759

Radius: 13.4

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.99 AU - 2.59 AU

Year: 2273 Days

Day: 5.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,638,765 km

• M1: 166,652 km (0.07 R)
• M2: 918,531 km (0.061 R)
• M3: 1,475,185 km (0.098 R)
• M4: 2,268,353 km (0.109 R)
• M5: 3,416,516 km (0.087 R)
• M6: 3,926,795 km (0.095 R)
• M7: 5,382,681 km (0.11 R)
• M8: 5,822,499 km (0.096 R)
• M9: 6,392,915 km (0.074 R)
• M10: 7,615,878 km (0.102 R)
• M11: 8,525,134 km (0.039 R)
• M12: 8,955,677 km (0.084 R)
• M13: 9,575,909 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.3

Radius: 8.8

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 4.3 AU - 6.28 AU

Year: 7982 Days

Day: 8.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 89,638,765 km

• M1: 109,506 km (0.106 R)
• M2: 637,287 km (0.064 R)
• M3: 1,300,155 km (0.039 R)
• M4: 1,618,200 km (0.106 R)
• M5: 2,148,973 km (0.036 R)
• M6: 2,773,545 km (0.084 R)
• M7: 3,207,378 km (0.09 R)
• M8: 3,954,021 km (0.046 R)
• M9: 5,024,394 km (0.09 R)
• M10: 5,700,128 km (0.049 R)
• M11: 6,121,395 km (0.05 R)
• M12: 6,498,980 km (0.09 R)
• M13: 7,726,132 km (0.098 R)
• M14: 8,280,541 km (0.09 R)
• M15: 8,940,567 km (0.094 R)
• M16: 13,396,190 km (0.096 R)
• M17: 14,691,558 km (0.077 R)
• M18: 17,404,515 km (0.072 R)
• M19: 17,844,632 km (0.086 R)
• M20: 18,421,631 km (0.115 R)
• M21: 19,884,100 km (0.091 R)
• M22: 20,995,313 km (0.109 R)
• M23: 22,001,060 km (0.109 R)
• M24: 26,760,965 km (0.077 R)
• M25: 27,432,061 km (0.113 R)
• M26: 29,071,055 km (0.081 R)
• M27: 29,424,256 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.3

Radius: 11.1

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.13 AU - 6.61 AU

Year: 8163 Days

Day: 14.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 89,638,765 km

• M1: 138,079 km (0.118 R)
• M2: 566,078 km (0.116 R)
• M3: 915,389 km (0.111 R)
• M4: 1,468,154 km (0.075 R)
• M5: 1,822,850 km (0.049 R)
• M6: 4,554,208 km (0.078 R)
• M7: 5,721,520 km (0.118 R)
• M8: 6,247,955 km (0.107 R)
• M9: 6,730,109 km (0.109 R)
• M10: 7,602,713 km (0.091 R)
• M11: 8,327,365 km (0.049 R)
• M12: 9,620,489 km (0.073 R)
• M13: 11,203,684 km (0.041 R)
• M14: 13,555,362 km (0.091 R)
• M15: 13,925,168 km (0.05 R)
• M16: 15,206,923 km (0.09 R)
• M17: 16,356,882 km (0.097 R)
• M18: 18,526,350 km (0.106 R)
• M19: 19,445,629 km (0.071 R)
• M20: 19,995,700 km (0.103 R)
• M21: 22,990,500 km (0.115 R)
• M22: 24,051,897 km (0.08 R)
• M23: 26,559,008 km (0.032 R)
• M24: 29,750,229 km (0.111 R)
• M25: 30,166,411 km (0.115 R)
• M26: 32,196,005 km (0.057 R)
• M27: 38,706,055 km (0.108 R)
• M28: 39,326,887 km (0.084 R)
• M29: 40,715,753 km (0.112 R)
• M30: 44,128,380 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.9

Radius: 7.8

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.71 AU - 8.07 AU

Year: 11864 Days

Day: 22.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,638,765 km

• M1: 100,679 km (0.096 R)
• M2: 540,198 km (0.045 R)
• M3: 1,402,181 km (0.043 R)
• M4: 2,445,476 km (0.104 R)
• M5: 4,124,264 km (0.079 R)
• M6: 4,502,148 km (0.103 R)
• M7: 5,101,138 km (0.085 R)
• M8: 5,923,178 km (0.1 R)
• M9: 6,912,618 km (0.094 R)
• M10: 7,417,960 km (0.093 R)
• M11: 11,246,469 km (0.088 R)
• M12: 11,827,058 km (0.027 R)
• M13: 12,714,473 km (0.033 R)
• M14: 14,712,502 km (0.049 R)
• M15: 15,266,313 km (0.104 R)
• M16: 16,415,524 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 285.2

Radius: 4.4

Gravity: 14.73 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 8.51 AU - 10.45 AU

Year: 19148 Days

Day: 21.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 89,638,765 km

• M1: 55,501 km (0.119 R)
• M2: 311,463 km (0.041 R)
• M3: 476,320 km (0.077 R)
• M4: 641,775 km (0.071 R)
• M5: 1,057,657 km (0.11 R)
• M6: 1,201,420 km (0.109 R)
• M7: 1,499,120 km (0.04 R)
• M8: 1,650,065 km (0.071 R)
• M9: 2,127,581 km (0.117 R)
• M10: 2,398,503 km (0.098 R)
• M11: 2,713,855 km (0.025 R)
• M12: 2,915,962 km (0.092 R)
• M13: 3,882,663 km (0.112 R)
• M14: 4,407,901 km (0.074 R)
• M15: 5,634,155 km (0.098 R)
• M16: 6,038,668 km (0.118 R)
• M17: 6,701,536 km (0.069 R)
• M18: 6,905,438 km (0.119 R)
• M19: 7,585,809 km (0.055 R)
• M20: 8,403,361 km (0.073 R)
• M21: 8,736,665 km (0.111 R)
• M22: 9,128,312 km (0.086 R)
• M23: 12,569,662 km (0.106 R)
• M24: 13,710,495 km (0.103 R)
• M25: 16,050,655 km (0.115 R)
• M26: 21,240,354 km (0.089 R)
• M27: 21,769,183 km (0.115 R)
• M28: 26,421,527 km (0.099 R)
• M29: 27,239,079 km (0.091 R)
• M30: 27,549,944 km (0.092 R)
• M31: 27,863,052 km (0.046 R)
• M32: 30,678,035 km (0.101 R)
• M33: 33,203,247 km (0.116 R)
• M34: 33,915,184 km (0.09 R)
• M35: 39,318,360 km (0.099 R)
• M36: 41,603,766 km (0.096 R)
• M37: 43,269,239 km (0.119 R)
• M38: 46,437,124 km (0.052 R)
• M39: 46,732,580 km (0.114 R)
• M40: 47,926,819 km (0.099 R)
• M41: 52,746,863 km (0.106 R)
• M42: 53,878,272 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.5

Radius: 6.5

Gravity: 21.72 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 9.83 AU - 11.03 AU

Year: 22097 Days

Day: 16.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 89,638,765 km

• M1: 80,932 km (0.099 R)
• M2: 407,953 km (0.115 R)
• M3: 755,170 km (0.062 R)
• M4: 1,170,454 km (0.095 R)
• M5: 1,673,103 km (0.116 R)
• M6: 2,379,953 km (0.1 R)
• M7: 2,880,058 km (0.082 R)
• M8: 3,539,037 km (0.086 R)
• M9: 6,118,703 km (0.117 R)
• M10: 6,389,774 km (0.115 R)
• M11: 6,716,047 km (0.105 R)
• M12: 9,027,484 km (0.112 R)
• M13: 12,101,121 km (0.082 R)
• M14: 12,385,058 km (0.115 R)
• M15: 15,391,078 km (0.073 R)
• M16: 16,579,184 km (0.069 R)
• M17: 18,010,536 km (0.081 R)
• M18: 21,528,480 km (0.057 R)
• M19: 26,417,937 km (0.077 R)
• M20: 28,116,621 km (0.037 R)
• M21: 38,777,114 km (0.082 R)
• M22: 39,549,937 km (0.093 R)
• M23: 40,807,906 km (0.114 R)
• M24: 44,068,990 km (0.114 R)
• M25: 45,420,606 km (0.102 R)
• M26: 46,279,298 km (0.088 R)
• M27: 47,148,761 km (0.075 R)
• M28: 47,675,645 km (0.111 R)
• M29: 48,206,418 km (0.088 R)
• M30: 58,043,974 km (0.066 R)
• M31: 62,368,998 km (0.118 R)
• M32: 62,791,761 km (0.09 R)
• M33: 63,429,497 km (0.109 R)
• M34: 65,586,399 km (0.119 R)
• M35: 74,703,941 km (0.059 R)
• M36: 82,833,239 km (0.066 R)
• M37: 89,102,437 km (0.038 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: 488 - 11,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit