🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.3

Radius: 9.3

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.82 AU - 0.94 AU

Year: 570 Days

Day: 11.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 33,839,066 km

• M1: 127,757 km (0.055 R)
• M2: 514,018 km (0.059 R)
• M3: 1,459,926 km (0.034 R)
• M4: 1,948,063 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.1

Radius: 12.8

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.37 AU - 1.41 AU

Year: 1131 Days

Day: 12.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,839,066 km

• M1: 159,172 km (0.117 R)
• M2: 613,202 km (0.043 R)
• M3: 1,179,729 km (0.109 R)
• M4: 1,727,706 km (0.049 R)
• M5: 2,350,931 km (0.051 R)
• M6: 2,786,410 km (0.062 R)
• M7: 3,527,219 km (0.061 R)
• M8: 4,448,741 km (0.104 R)
• M9: 4,852,357 km (0.108 R)
• M10: 6,509,303 km (0.051 R)
• M11: 7,815,142 km (0.08 R)
• M12: 8,544,282 km (0.033 R)
• M13: 9,113,203 km (0.111 R)
• M14: 9,982,965 km (0.118 R)
• M15: 11,039,276 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.6

Radius: 13.5

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.71 AU - 1.87 AU

Year: 1653 Days

Day: 10.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,839,066 km

• M1: 167,849 km (0.033 R)
• M2: 627,862 km (0.087 R)
• M3: 1,073,365 km (0.112 R)
• M4: 1,770,790 km (0.068 R)
• M5: 2,297,674 km (0.092 R)
• M6: 2,958,298 km (0.114 R)
• M7: 3,472,466 km (0.108 R)
• M8: 4,119,925 km (0.114 R)
• M9: 4,723,553 km (0.083 R)
• M10: 6,660,845 km (0.067 R)
• M11: 9,601,939 km (0.079 R)
• M12: 11,209,967 km (0.12 R)
• M13: 14,336,862 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.7

Radius: 14

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.78 AU - 2.68 AU

Year: 2299 Days

Day: 9.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,839,066 km

• M1: 174,132 km (0.094 R)
• M2: 720,912 km (0.044 R)
• M3: 1,157,140 km (0.087 R)
• M4: 2,336,420 km (0.11 R)
• M5: 2,833,683 km (0.119 R)
• M6: 3,926,346 km (0.114 R)
• M7: 4,591,907 km (0.109 R)
• M8: 5,756,825 km (0.03 R)
• M9: 6,646,633 km (0.089 R)
• M10: 7,110,237 km (0.111 R)
• M11: 7,595,383 km (0.112 R)
• M12: 8,666,354 km (0.119 R)
• M13: 9,185,459 km (0.106 R)
• M14: 14,596,115 km (0.118 R)
• M15: 15,990,965 km (0.108 R)
• M16: 16,667,896 km (0.096 R)
• M17: 17,255,666 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475

Radius: 11.8

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.74 AU - 3.86 AU

Year: 4138 Days

Day: 10 Hours

Environment

Temp: -222 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,839,066 km

• M1: 146,756 km (0.11 R)
• M2: 607,517 km (0.115 R)
• M3: 1,083,238 km (0.063 R)
• M4: 2,087,189 km (0.081 R)
• M5: 2,850,887 km (0.106 R)
• M6: 3,495,953 km (0.061 R)
• M7: 4,324,725 km (0.12 R)
• M8: 5,592,567 km (0.066 R)
• M9: 6,226,712 km (0.085 R)
• M10: 8,177,169 km (0.032 R)
• M11: 9,749,742 km (0.045 R)
• M12: 11,558,829 km (0.067 R)
• M13: 12,269,120 km (0.077 R)
• M14: 12,867,511 km (0.112 R)
• M15: 13,679,229 km (0.098 R)
• M16: 14,626,483 km (0.101 R)
• M17: 15,247,015 km (0.107 R)
• M18: 15,616,971 km (0.068 R)
• M19: 16,155,972 km (0.067 R)
• M20: 16,931,337 km (0.09 R)
• M21: 17,385,517 km (0.12 R)
• M22: 17,964,610 km (0.075 R)
• M23: 22,182,073 km (0.115 R)
• M24: 22,589,278 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.7

Radius: 12.1

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.03 AU - 3.57 AU

Year: 4138 Days

Day: 7 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,839,066 km

• M1: 150,495 km (0.101 R)
• M2: 651,798 km (0.11 R)
• M3: 1,147,864 km (0.111 R)
• M4: 1,574,218 km (0.115 R)
• M5: 2,594,476 km (0.039 R)
• M6: 3,409,934 km (0.097 R)
• M7: 4,068,164 km (0.067 R)
• M8: 4,788,777 km (0.116 R)
• M9: 9,404,021 km (0.118 R)
• M10: 10,487,708 km (0.067 R)
• M11: 14,587,288 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.3

Radius: 10.4

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.66 AU - 4.7 AU

Year: 5899 Days

Day: 5.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 33,839,066 km

• M1: 129,402 km (0.083 R)
• M2: 478,414 km (0.104 R)
• M3: 849,716 km (0.092 R)
• M4: 1,732,044 km (0.041 R)
• M5: 2,168,421 km (0.091 R)
• M6: 3,060,024 km (0.114 R)
• M7: 3,589,751 km (0.036 R)
• M8: 5,000,010 km (0.079 R)
• M9: 5,861,095 km (0.071 R)
• M10: 7,171,423 km (0.062 R)
• M11: 8,384,961 km (0.063 R)
• M12: 9,554,666 km (0.057 R)
• M13: 9,997,775 km (0.12 R)
• M14: 10,362,196 km (0.091 R)
• M15: 11,410,129 km (0.1 R)
• M16: 14,918,947 km (0.102 R)
• M17: 16,504,535 km (0.106 R)
• M18: 18,334,416 km (0.089 R)
• M19: 19,721,786 km (0.072 R)
• M20: 20,587,061 km (0.028 R)
• M21: 22,085,283 km (0.058 R)
• M22: 22,704,469 km (0.109 R)
• M23: 24,714,167 km (0.099 R)
• M24: 25,634,942 km (0.118 R)
• M25: 30,016,364 km (0.083 R)
• M26: 30,968,255 km (0.105 R)
• M27: 32,831,796 km (0.118 R)
• M28: 33,638,428 km (0.079 R)
• M29: 34,355,001 km (0.052 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957

Radius: 11.8

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.58 AU - 5.54 AU

Year: 7857 Days

Day: 7.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 33,839,066 km

• M1: 146,905 km (0.106 R)
• M2: 574,007 km (0.093 R)
• M3: 955,332 km (0.064 R)
• M4: 1,362,388 km (0.096 R)
• M5: 1,871,918 km (0.059 R)
• M6: 2,949,472 km (0.043 R)
• M7: 3,540,234 km (0.112 R)
• M8: 4,181,410 km (0.11 R)
• M9: 5,020,654 km (0.099 R)
• M10: 6,431,212 km (0.047 R)
• M11: 7,033,045 km (0.087 R)
• M12: 8,392,889 km (0.098 R)
• M13: 8,792,465 km (0.097 R)
• M14: 13,162,069 km (0.063 R)
• M15: 14,258,023 km (0.118 R)
• M16: 15,946,983 km (0.114 R)
• M17: 19,486,619 km (0.091 R)
• M18: 21,645,466 km (0.084 R)
• M19: 22,654,354 km (0.092 R)
• M20: 24,315,488 km (0.115 R)
• M21: 25,038,794 km (0.119 R)
• M22: 26,056,508 km (0.056 R)
• M23: 27,879,059 km (0.053 R)
• M24: 33,855,644 km (0.101 R)
• M25: 35,099,849 km (0.095 R)
• M26: 36,727,175 km (0.086 R)
• M27: 37,201,101 km (0.11 R)
• M28: 42,298,200 km (0.112 R)
• M29: 42,688,500 km (0.088 R)
• M30: 44,407,679 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.8

Radius: 6.1

Gravity: 13.35 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 8.71 AU - 9.33 AU

Year: 18699 Days

Day: 17.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 33,839,066 km

• M1: 81,082 km (0.11 R)
• M2: 353,500 km (0.077 R)
• M3: 606,021 km (0.1 R)
• M4: 799,900 km (0.04 R)
• M5: 989,740 km (0.087 R)
• M6: 1,803,702 km (0.083 R)
• M7: 2,400,896 km (0.116 R)
• M8: 4,641,872 km (0.115 R)
• M9: 5,561,899 km (0.035 R)
• M10: 9,150,453 km (0.101 R)
• M11: 10,702,980 km (0.102 R)
• M12: 12,880,526 km (0.065 R)
• M13: 16,169,136 km (0.113 R)
• M14: 17,923,171 km (0.051 R)
• M15: 20,877,729 km (0.116 R)
• M16: 25,788,878 km (0.094 R)
• M17: 28,174,216 km (0.104 R)
• M18: 30,584,686 km (0.09 R)
• M19: 40,455,154 km (0.119 R)
• M20: 45,638,720 km (0.055 R)
• M21: 47,513,032 km (0.047 R)
• M22: 48,952,163 km (0.103 R)
• M23: 49,600,820 km (0.11 R)
• M24: 55,700,224 km (0.097 R)
• M25: 57,479,092 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59

Radius: 4.8

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.83 AU - 10.17 AU

Year: 20211 Days

Day: 22.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,839,066 km

• M1: 59,690 km (0.089 R)
• M2: 376,987 km (0.112 R)
• M3: 613,202 km (0.089 R)
• M4: 849,866 km (0.096 R)
• M5: 1,240,765 km (0.078 R)
• M6: 2,491,553 km (0.059 R)
• M7: 3,199,749 km (0.05 R)
• M8: 3,961,202 km (0.092 R)
• M9: 6,023,708 km (0.103 R)
• M10: 7,651,781 km (0.098 R)
• M11: 11,497,644 km (0.106 R)
• M12: 13,092,806 km (0.103 R)
• M13: 13,692,544 km (0.077 R)
• M14: 14,771,294 km (0.106 R)
• M15: 18,078,005 km (0.114 R)
• M16: 20,080,821 km (0.095 R)
• M17: 24,033,945 km (0.098 R)
• M18: 24,684,845 km (0.084 R)
• M19: 31,561,560 km (0.077 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 12,475 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit