🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.9

Radius: 10.7

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.71 AU - 0.79 AU

Year: 441 Days

Day: 6.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,711,313 km

• M1: 133,142 km (0.077 R)
• M2: 477,666 km (0.074 R)
• M3: 1,016,817 km (0.058 R)
• M4: 1,552,676 km (0.084 R)
• M5: 1,893,759 km (0.082 R)
• M6: 3,313,593 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.5

Radius: 12.6

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.95 AU - 1.11 AU

Year: 709 Days

Day: 10.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,711,313 km

• M1: 160,369 km (0.111 R)
• M2: 682,166 km (0.104 R)
• M3: 1,178,382 km (0.111 R)
• M4: 1,635,404 km (0.089 R)
• M5: 2,282,415 km (0.062 R)
• M6: 3,316,585 km (0.096 R)
• M7: 4,201,606 km (0.102 R)
• M8: 4,794,313 km (0.1 R)
• M9: 5,348,722 km (0.057 R)
• M10: 5,748,448 km (0.074 R)
• M11: 6,147,724 km (0.09 R)
• M12: 6,759,729 km (0.103 R)
• M13: 7,388,938 km (0.116 R)
• M14: 8,254,960 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.5

Radius: 13.8

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.93 AU - 1.15 AU

Year: 719 Days

Day: 5.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,711,313 km

• M1: 171,589 km (0.074 R)
• M2: 633,697 km (0.052 R)
• M3: 1,076,805 km (0.068 R)
• M4: 1,854,116 km (0.099 R)
• M5: 2,380,701 km (0.106 R)
• M6: 2,995,099 km (0.038 R)
• M7: 3,510,613 km (0.108 R)
• M8: 4,085,518 km (0.114 R)
• M9: 5,354,257 km (0.115 R)
• M10: 5,983,765 km (0.116 R)
• M11: 6,417,001 km (0.04 R)
• M12: 6,956,151 km (0.059 R)
• M13: 7,638,467 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.2

Radius: 11.8

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.66 AU - 2.12 AU

Year: 1762 Days

Day: 5.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,711,313 km

• M1: 146,756 km (0.108 R)
• M2: 671,096 km (0.099 R)
• M3: 1,291,778 km (0.11 R)
• M4: 1,814,024 km (0.067 R)
• M5: 2,208,813 km (0.083 R)
• M6: 2,876,917 km (0.083 R)
• M7: 3,365,503 km (0.077 R)
• M8: 3,791,109 km (0.067 R)
• M9: 4,303,482 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.4

Radius: 11.8

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.92 AU - 2.66 AU

Year: 2350 Days

Day: 5.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,711,313 km

• M1: 146,905 km (0.063 R)
• M2: 528,529 km (0.083 R)
• M3: 1,230,891 km (0.089 R)
• M4: 1,762,113 km (0.112 R)
• M5: 2,163,335 km (0.092 R)
• M6: 2,903,545 km (0.065 R)
• M7: 3,822,974 km (0.098 R)
• M8: 4,844,577 km (0.117 R)
• M9: 5,287,986 km (0.049 R)
• M10: 6,630,327 km (0.082 R)
• M11: 7,124,898 km (0.102 R)
• M12: 7,898,468 km (0.073 R)
• M13: 8,335,593 km (0.089 R)
• M14: 9,483,159 km (0.108 R)
• M15: 9,943,770 km (0.103 R)
• M16: 10,350,527 km (0.1 R)
• M17: 12,166,645 km (0.091 R)
• M18: 13,723,809 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.5

Radius: 9.6

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.65 AU - 2.67 AU

Year: 2942 Days

Day: 8.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,711,313 km

• M1: 119,678 km (0.076 R)
• M2: 513,869 km (0.068 R)
• M3: 1,251,087 km (0.094 R)
• M4: 2,253,393 km (0.075 R)
• M5: 2,612,876 km (0.116 R)
• M6: 2,915,513 km (0.043 R)
• M7: 4,411,492 km (0.058 R)
• M8: 5,208,848 km (0.107 R)
• M9: 5,816,964 km (0.107 R)
• M10: 6,747,163 km (0.105 R)
• M11: 9,345,678 km (0.061 R)
• M12: 10,429,964 km (0.086 R)
• M13: 10,847,940 km (0.049 R)
• M14: 11,596,229 km (0.093 R)
• M15: 12,847,166 km (0.085 R)
• M16: 15,962,242 km (0.079 R)
• M17: 18,481,471 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.5

Radius: 4.6

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 6.47 AU - 6.87 AU

Year: 11684 Days

Day: 20.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,711,313 km

• M1: 57,296 km (0.06 R)
• M2: 1,958,535 km (0.041 R)
• M3: 5,557,710 km (0.066 R)
• M4: 8,370,450 km (0.115 R)
• M5: 17,849,719 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.7

Radius: 4.8

Gravity: 37.23 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.29 AU - 8.97 AU

Year: 14295 Days

Day: 15.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 55,711,313 km

• M1: 59,690 km (0.093 R)
• M2: 210,335 km (0.062 R)
• M3: 467,793 km (0.115 R)
• M4: 1,070,822 km (0.072 R)
• M5: 1,377,796 km (0.025 R)
• M6: 1,845,888 km (0.063 R)
• M7: 2,068,191 km (0.107 R)
• M8: 2,844,005 km (0.096 R)
• M9: 3,064,961 km (0.108 R)
• M10: 3,682,202 km (0.067 R)
• M11: 4,251,721 km (0.108 R)
• M12: 4,707,396 km (0.09 R)
• M13: 5,087,824 km (0.099 R)
• M14: 5,488,447 km (0.088 R)
• M15: 7,123,851 km (0.058 R)
• M16: 7,394,324 km (0.059 R)
• M17: 8,247,181 km (0.107 R)
• M18: 9,866,428 km (0.036 R)
• M19: 10,779,873 km (0.093 R)
• M20: 12,317,889 km (0.119 R)
• M21: 13,996,377 km (0.065 R)
• M22: 14,420,936 km (0.106 R)
• M23: 18,550,286 km (0.074 R)
• M24: 19,062,209 km (0.117 R)
• M25: 21,390,252 km (0.113 R)
• M26: 27,362,049 km (0.06 R)
• M27: 28,025,216 km (0.101 R)
• M28: 30,785,297 km (0.068 R)
• M29: 32,722,889 km (0.098 R)
• M30: 34,355,749 km (0.061 R)
• M31: 36,705,184 km (0.091 R)
• M32: 37,106,854 km (0.104 R)
• M33: 39,020,361 km (0.117 R)
• M34: 39,298,912 km (0.101 R)
• M35: 41,286,619 km (0.084 R)
• M36: 42,599,190 km (0.113 R)
• M37: 45,615,084 km (0.082 R)
• M38: 47,968,258 km (0.052 R)
• M39: 48,770,252 km (0.049 R)
• M40: 59,839,298 km (0.081 R)
• M41: 60,395,652 km (0.112 R)
• M42: 60,581,902 km (0.029 R)
• M43: 65,362,900 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.5

Radius: 6.1

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.23 AU - 9.55 AU

Year: 15032 Days

Day: 19.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,711,313 km

• M1: 78,988 km (0.043 R)
• M2: 483,949 km (0.086 R)
• M3: 688,449 km (0.096 R)
• M4: 1,245,103 km (0.107 R)
• M5: 1,569,581 km (0.099 R)
• M6: 2,331,782 km (0.1 R)
• M7: 2,681,243 km (0.033 R)
• M8: 2,933,165 km (0.04 R)
• M9: 3,132,430 km (0.109 R)
• M10: 3,388,392 km (0.101 R)
• M11: 3,583,168 km (0.054 R)
• M12: 4,762,149 km (0.105 R)
• M13: 5,292,773 km (0.091 R)
• M14: 6,287,898 km (0.058 R)
• M15: 6,620,603 km (0.118 R)
• M16: 6,964,978 km (0.062 R)
• M17: 7,442,644 km (0.116 R)
• M18: 7,814,993 km (0.1 R)
• M19: 9,053,514 km (0.105 R)
• M20: 10,571,334 km (0.091 R)
• M21: 13,244,348 km (0.113 R)
• M22: 14,930,167 km (0.05 R)
• M23: 15,389,432 km (0.084 R)
• M24: 18,570,631 km (0.085 R)
• M25: 18,949,113 km (0.104 R)
• M26: 20,354,137 km (0.112 R)
• M27: 25,725,299 km (0.086 R)
• M28: 26,006,842 km (0.084 R)
• M29: 28,734,310 km (0.03 R)
• M30: 29,959,367 km (0.069 R)
• M31: 31,325,495 km (0.094 R)
• M32: 34,181,318 km (0.117 R)
• M33: 37,325,866 km (0.119 R)
• M34: 40,912,325 km (0.088 R)
• M35: 43,118,145 km (0.107 R)
• M36: 44,317,322 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.3

Radius: 3.5

Gravity: 16.02 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.35 AU - 11.85 AU

Year: 23407 Days

Day: 15.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,711,313 km

• M1: 43,533 km (0.057 R)
• M2: 209,736 km (0.078 R)
• M3: 336,745 km (0.073 R)
• M4: 581,487 km (0.119 R)
• M5: 945,010 km (0.086 R)
• M6: 1,305,241 km (0.096 R)
• M7: 1,919,490 km (0.099 R)
• M8: 7,341,366 km (0.098 R)
• M9: 9,406,714 km (0.029 R)
• M10: 10,461,678 km (0.106 R)
• M11: 10,681,737 km (0.092 R)
• M12: 12,929,295 km (0.076 R)
• M13: 13,374,947 km (0.089 R)
• M14: 14,705,022 km (0.075 R)
• M15: 17,393,296 km (0.051 R)
• M16: 20,908,098 km (0.074 R)
• M17: 22,419,036 km (0.081 R)
• M18: 22,601,396 km (0.074 R)
• M19: 23,154,609 km (0.085 R)
• M20: 26,869,274 km (0.045 R)
• M21: 27,075,120 km (0.12 R)
• M22: 31,415,702 km (0.105 R)
• M23: 32,685,788 km (0.105 R)
• M24: 38,238,861 km (0.041 R)
• M25: 39,552,779 km (0.093 R)
• M26: 42,409,351 km (0.092 R)
• M27: 48,529,250 km (0.078 R)
• M28: 51,164,865 km (0.049 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 14,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit