🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.2

Radius: 12.9

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.52 AU - 0.52 AU

Year: 259 Days

Day: 9.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,437,352 km

• M1: 160,519 km (0.099 R)
• M2: 565,480 km (0.04 R)
• M3: 979,268 km (0.034 R)
• M4: 1,427,014 km (0.115 R)
• M5: 1,873,414 km (0.112 R)
• M6: 2,539,274 km (0.107 R)
• M7: 3,348,449 km (0.104 R)
• M8: 3,870,845 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.1

Radius: 9.8

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.62 AU - 0.68 AU

Year: 362 Days

Day: 10.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,437,352 km

• M1: 122,072 km (0.033 R)
• M2: 695,780 km (0.117 R)
• M3: 1,010,833 km (0.108 R)
• M4: 1,459,926 km (0.105 R)
• M5: 1,825,992 km (0.063 R)
• M6: 2,430,517 km (0.115 R)
• M7: 3,365,354 km (0.064 R)
• M8: 4,086,266 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.5

Radius: 11.7

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.52 AU - 3.68 AU

Year: 4715 Days

Day: 6.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,437,352 km

• M1: 145,559 km (0.104 R)
• M2: 1,980,975 km (0.112 R)
• M3: 2,518,331 km (0.104 R)
• M4: 3,188,679 km (0.12 R)
• M5: 3,845,862 km (0.081 R)
• M6: 6,221,327 km (0.11 R)
• M7: 7,022,124 km (0.087 R)
• M8: 7,481,240 km (0.059 R)
• M9: 9,600,593 km (0.096 R)
• M10: 10,416,350 km (0.085 R)
• M11: 11,635,423 km (0.11 R)
• M12: 14,096,907 km (0.093 R)
• M13: 15,697,005 km (0.03 R)
• M14: 16,541,037 km (0.086 R)
• M15: 18,504,209 km (0.077 R)
• M16: 18,939,689 km (0.117 R)
• M17: 22,959,533 km (0.076 R)
• M18: 23,826,752 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.4

Radius: 12.6

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.55 AU - 3.93 AU

Year: 4993 Days

Day: 14.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,437,352 km

• M1: 156,629 km (0.116 R)
• M2: 718,668 km (0.089 R)
• M3: 1,111,662 km (0.106 R)
• M4: 1,526,347 km (0.104 R)
• M5: 2,088,835 km (0.1 R)
• M6: 3,003,776 km (0.065 R)
• M7: 3,743,986 km (0.113 R)
• M8: 4,382,470 km (0.061 R)
• M9: 4,934,037 km (0.115 R)
• M10: 6,581,858 km (0.05 R)
• M11: 10,533,784 km (0.045 R)
• M12: 12,434,575 km (0.092 R)
• M13: 12,930,941 km (0.032 R)
• M14: 13,857,700 km (0.028 R)
• M15: 15,217,843 km (0.065 R)
• M16: 16,784,731 km (0.086 R)
• M17: 18,329,030 km (0.097 R)
• M18: 19,037,825 km (0.105 R)
• M19: 22,057,159 km (0.077 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 726.2

Radius: 6.4

Gravity: 17.73 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.66 AU - 7.1 AU

Year: 11124 Days

Day: 21.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 87,437,352 km

• M1: 79,736 km (0.12 R)
• M2: 290,220 km (0.091 R)
• M3: 551,119 km (0.09 R)
• M4: 812,915 km (0.103 R)
• M5: 1,076,805 km (0.093 R)
• M6: 2,249,653 km (0.086 R)
• M7: 2,606,294 km (0.115 R)
• M8: 2,931,819 km (0.101 R)
• M9: 3,664,101 km (0.052 R)
• M10: 5,347,226 km (0.081 R)
• M11: 5,837,459 km (0.115 R)
• M12: 7,704,141 km (0.119 R)
• M13: 8,748,633 km (0.063 R)
• M14: 11,339,519 km (0.039 R)
• M15: 12,565,922 km (0.076 R)
• M16: 13,494,177 km (0.091 R)
• M17: 14,138,046 km (0.06 R)
• M18: 15,978,399 km (0.085 R)
• M19: 16,335,938 km (0.104 R)
• M20: 17,515,966 km (0.086 R)
• M21: 18,910,218 km (0.119 R)
• M22: 24,561,427 km (0.096 R)
• M23: 24,941,855 km (0.057 R)
• M24: 28,336,829 km (0.088 R)
• M25: 31,354,367 km (0.088 R)
• M26: 36,026,608 km (0.088 R)
• M27: 39,429,960 km (0.075 R)
• M28: 41,410,336 km (0.119 R)
• M29: 44,292,938 km (0.111 R)
• M30: 44,574,182 km (0.102 R)
• M31: 46,576,848 km (0.096 R)
• M32: 47,453,193 km (0.074 R)
• M33: 51,844,488 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 549

Radius: 6.1

Gravity: 14.75 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 6.42 AU - 8.28 AU

Year: 13754 Days

Day: 24.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 87,437,352 km

• M1: 75,846 km (0.053 R)
• M2: 314,006 km (0.053 R)
• M3: 864,975 km (0.101 R)
• M4: 1,170,304 km (0.103 R)
• M5: 1,590,525 km (0.085 R)
• M6: 1,894,807 km (0.119 R)
• M7: 2,199,238 km (0.094 R)
• M8: 2,771,899 km (0.077 R)
• M9: 3,117,171 km (0.104 R)
• M10: 3,413,674 km (0.077 R)
• M11: 4,602,378 km (0.077 R)
• M12: 5,053,566 km (0.045 R)
• M13: 5,640,588 km (0.092 R)
• M14: 5,895,203 km (0.096 R)
• M15: 6,272,190 km (0.051 R)
• M16: 6,625,091 km (0.089 R)
• M17: 7,807,962 km (0.11 R)
• M18: 10,805,155 km (0.037 R)
• M19: 11,141,601 km (0.071 R)
• M20: 13,565,834 km (0.067 R)
• M21: 14,763,365 km (0.089 R)
• M22: 15,599,767 km (0.098 R)
• M23: 16,247,526 km (0.071 R)
• M24: 16,913,086 km (0.088 R)
• M25: 21,205,498 km (0.054 R)
• M26: 26,880,793 km (0.119 R)
• M27: 28,762,435 km (0.106 R)
• M28: 29,408,548 km (0.093 R)
• M29: 30,841,845 km (0.111 R)
• M30: 33,490,775 km (0.109 R)
• M31: 34,567,281 km (0.108 R)
• M32: 34,809,629 km (0.051 R)
• M33: 35,175,247 km (0.064 R)
• M34: 36,162,742 km (0.098 R)
• M35: 40,030,745 km (0.07 R)
• M36: 42,202,158 km (0.113 R)
• M37: 52,789,199 km (0.091 R)
• M38: 54,409,494 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 187.3

Radius: 3.3

Gravity: 17.2 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 8.17 AU - 8.19 AU

Year: 16149 Days

Day: 19.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 87,437,352 km

• M1: 41,439 km (0.088 R)
• M2: 236,664 km (0.048 R)
• M3: 709,543 km (0.087 R)
• M4: 855,401 km (0.072 R)
• M5: 1,442,871 km (0.048 R)
• M6: 2,190,562 km (0.103 R)
• M7: 2,407,179 km (0.108 R)
• M8: 3,785,724 km (0.066 R)
• M9: 4,287,325 km (0.097 R)
• M10: 4,398,327 km (0.098 R)
• M11: 6,338,462 km (0.112 R)
• M12: 7,880,816 km (0.096 R)
• M13: 9,421,225 km (0.073 R)
• M14: 10,536,028 km (0.111 R)
• M15: 13,257,064 km (0.051 R)
• M16: 13,374,648 km (0.032 R)
• M17: 13,852,314 km (0.098 R)
• M18: 15,942,795 km (0.037 R)
• M19: 18,895,557 km (0.111 R)
• M20: 19,955,309 km (0.087 R)
• M21: 21,294,808 km (0.074 R)
• M22: 25,307,621 km (0.107 R)
• M23: 25,488,784 km (0.104 R)
• M24: 26,780,861 km (0.092 R)
• M25: 31,229,004 km (0.056 R)
• M26: 31,333,124 km (0.035 R)
• M27: 31,437,394 km (0.066 R)
• M28: 32,068,099 km (0.094 R)
• M29: 38,366,917 km (0.099 R)
• M30: 38,486,296 km (0.094 R)
• M31: 41,301,279 km (0.054 R)
• M32: 41,930,787 km (0.114 R)
• M33: 42,311,663 km (0.039 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 356.3

Radius: 5.9

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.44 AU - 10.52 AU

Year: 17045 Days

Day: 15.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,437,352 km

• M1: 73,453 km (0.096 R)
• M2: 415,583 km (0.084 R)
• M3: 2,510,252 km (0.119 R)
• M4: 5,112,507 km (0.067 R)
• M5: 6,379,152 km (0.054 R)
• M6: 7,190,122 km (0.058 R)
• M7: 8,391,244 km (0.1 R)
• M8: 9,720,421 km (0.086 R)
• M9: 10,033,828 km (0.067 R)
• M10: 18,915,304 km (0.091 R)
• M11: 19,817,679 km (0.103 R)
• M12: 31,256,680 km (0.078 R)
• M13: 41,742,743 km (0.054 R)
• M14: 47,320,350 km (0.087 R)
• M15: 48,069,536 km (0.095 R)
• M16: 53,052,342 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789.4

Radius: 5.4

Gravity: 27.07 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 9.13 AU - 11.55 AU

Year: 22950 Days

Day: 16.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 87,437,352 km

• M1: 71,508 km (0.109 R)
• M2: 246,088 km (0.045 R)
• M3: 611,406 km (0.108 R)
• M4: 1,383,780 km (0.068 R)
• M5: 1,585,139 km (0.104 R)
• M6: 1,786,797 km (0.093 R)
• M7: 2,005,659 km (0.051 R)
• M8: 2,198,042 km (0.108 R)
• M9: 2,956,952 km (0.077 R)
• M10: 3,264,375 km (0.042 R)
• M11: 4,601,182 km (0.117 R)
• M12: 5,533,924 km (0.116 R)
• M13: 6,586,645 km (0.096 R)
• M14: 7,611,689 km (0.103 R)
• M15: 7,923,152 km (0.102 R)
• M16: 9,080,441 km (0.081 R)
• M17: 9,371,708 km (0.071 R)
• M18: 10,536,178 km (0.083 R)
• M19: 12,927,799 km (0.116 R)
• M20: 15,658,708 km (0.065 R)
• M21: 19,128,481 km (0.077 R)
• M22: 20,390,190 km (0.095 R)
• M23: 24,506,824 km (0.096 R)
• M24: 25,414,733 km (0.07 R)
• M25: 26,110,214 km (0.12 R)
• M26: 27,782,269 km (0.107 R)
• M27: 28,894,081 km (0.104 R)
• M28: 30,551,775 km (0.107 R)
• M29: 36,485,873 km (0.115 R)
• M30: 37,222,045 km (0.107 R)
• M31: 39,182,525 km (0.104 R)
• M32: 41,369,646 km (0.083 R)
• M33: 43,144,026 km (0.058 R)
• M34: 45,985,189 km (0.119 R)
• M35: 51,298,905 km (0.089 R)
• M36: 54,867,712 km (0.096 R)
• M37: 62,914,581 km (0.056 R)
• M38: 71,026,227 km (0.103 R)
• M39: 82,803,768 km (0.166 R)
• M40: 86,653,370 km (0.078 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 17,085 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit