🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950

Radius: 13

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.79 AU - 0.81 AU

Year: 494 Days

Day: 8.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,121,973 km

• M1: 161,715 km (0.036 R)
• M2: 566,228 km (0.112 R)
• M3: 979,118 km (0.112 R)
• M4: 1,555,519 km (0.112 R)
• M5: 2,267,754 km (0.063 R)
• M6: 2,988,965 km (0.097 R)
• M7: 3,551,304 km (0.078 R)
• M8: 4,111,398 km (0.072 R)
• M9: 5,392,704 km (0.102 R)
• M10: 6,883,896 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.2

Radius: 11

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.82 AU - 1.06 AU

Year: 629 Days

Day: 8.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,121,973 km

• M1: 136,882 km (0.085 R)
• M2: 527,332 km (0.041 R)
• M3: 965,205 km (0.093 R)
• M4: 1,318,855 km (0.102 R)
• M5: 1,777,671 km (0.071 R)
• M6: 2,241,874 km (0.083 R)
• M7: 3,010,956 km (0.102 R)
• M8: 3,831,501 km (0.07 R)
• M9: 4,645,911 km (0.08 R)
• M10: 5,244,453 km (0.073 R)
• M11: 5,913,155 km (0.089 R)
• M12: 6,935,058 km (0.115 R)
• M13: 7,285,865 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.1

Radius: 11.6

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.74 AU - 1.16 AU

Year: 639 Days

Day: 11.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,121,973 km

• M1: 144,362 km (0.116 R)
• M2: 651,349 km (0.106 R)
• M3: 1,138,440 km (0.049 R)
• M4: 1,528,142 km (0.099 R)
• M5: 2,101,700 km (0.061 R)
• M6: 2,643,843 km (0.09 R)
• M7: 3,465,584 km (0.099 R)
• M8: 3,875,482 km (0.04 R)
• M9: 4,490,479 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.1

Radius: 12.9

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.25 AU - 2.93 AU

Year: 2877 Days

Day: 14.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,121,973 km

• M1: 160,519 km (0.092 R)
• M2: 1,179,280 km (0.047 R)
• M3: 1,911,262 km (0.113 R)
• M4: 2,331,932 km (0.092 R)
• M5: 2,815,133 km (0.116 R)
• M6: 3,744,883 km (0.085 R)
• M7: 4,591,757 km (0.086 R)
• M8: 5,232,934 km (0.041 R)
• M9: 5,640,588 km (0.078 R)
• M10: 6,208,012 km (0.077 R)
• M11: 6,636,461 km (0.06 R)
• M12: 7,844,015 km (0.091 R)
• M13: 8,311,658 km (0.116 R)
• M14: 9,942,274 km (0.111 R)
• M15: 10,411,114 km (0.053 R)
• M16: 15,684,888 km (0.107 R)
• M17: 16,975,020 km (0.066 R)
• M18: 18,103,138 km (0.034 R)
• M19: 19,280,622 km (0.06 R)
• M20: 21,205,797 km (0.064 R)
• M21: 21,787,883 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.7

Radius: 13.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.22 AU - 5.32 AU

Year: 8351 Days

Day: 9.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,121,973 km

• M1: 166,652 km (0.075 R)
• M2: 896,091 km (0.111 R)
• M3: 1,681,779 km (0.101 R)
• M4: 2,784,764 km (0.102 R)
• M5: 3,578,979 km (0.095 R)
• M6: 4,876,591 km (0.088 R)
• M7: 6,372,420 km (0.108 R)
• M8: 7,158,258 km (0.104 R)
• M9: 7,645,798 km (0.093 R)
• M10: 8,923,214 km (0.111 R)
• M11: 9,447,704 km (0.061 R)
• M12: 10,558,618 km (0.059 R)
• M13: 11,802,524 km (0.107 R)
• M14: 12,287,371 km (0.115 R)
• M15: 13,296,857 km (0.119 R)
• M16: 14,914,010 km (0.063 R)
• M17: 15,711,965 km (0.059 R)
• M18: 17,517,911 km (0.112 R)
• M19: 21,971,738 km (0.088 R)
• M20: 23,686,579 km (0.06 R)
• M21: 25,569,418 km (0.107 R)
• M22: 26,795,821 km (0.047 R)
• M23: 27,550,243 km (0.046 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.9

Radius: 7.8

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.8 AU - 8.58 AU

Year: 13308 Days

Day: 20.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,121,973 km

• M1: 97,837 km (0.088 R)
• M2: 582,085 km (0.068 R)
• M3: 1,477,279 km (0.12 R)
• M4: 2,021,067 km (0.115 R)
• M5: 2,330,585 km (0.117 R)
• M6: 3,337,678 km (0.086 R)
• M7: 3,697,461 km (0.061 R)
• M8: 4,638,432 km (0.064 R)
• M9: 5,211,691 km (0.047 R)
• M10: 7,534,347 km (0.065 R)
• M11: 16,018,641 km (0.1 R)
• M12: 16,628,252 km (0.082 R)
• M13: 17,536,162 km (0.118 R)
• M14: 19,911,177 km (0.099 R)
• M15: 21,663,268 km (0.107 R)
• M16: 21,909,805 km (0.117 R)
• M17: 22,408,714 km (0.045 R)
• M18: 23,256,934 km (0.115 R)
• M19: 27,532,591 km (0.073 R)
• M20: 30,313,914 km (0.051 R)
• M21: 34,269,132 km (0.064 R)
• M22: 37,010,812 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.6

Radius: 3.5

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.06 AU - 8.9 AU

Year: 17045 Days

Day: 18 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,121,973 km

• M1: 48,470 km (0.079 R)
• M2: 272,268 km (0.084 R)
• M3: 541,245 km (0.12 R)
• M4: 697,724 km (0.043 R)
• M5: 807,529 km (0.116 R)
• M6: 1,154,896 km (0.09 R)
• M7: 1,298,210 km (0.084 R)
• M8: 3,830,304 km (0.045 R)
• M9: 4,075,046 km (0.114 R)
• M10: 6,089,531 km (0.091 R)
• M11: 6,288,047 km (0.057 R)
• M12: 6,456,794 km (0.093 R)
• M13: 8,850,210 km (0.116 R)
• M14: 9,899,041 km (0.067 R)
• M15: 12,662,861 km (0.057 R)
• M16: 16,852,649 km (0.083 R)
• M17: 20,744,587 km (0.085 R)
• M18: 26,927,318 km (0.098 R)
• M19: 28,368,693 km (0.092 R)
• M20: 29,015,255 km (0.087 R)
• M21: 34,336,451 km (0.111 R)
• M22: 34,859,745 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525

Radius: 7.9

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 8.46 AU - 10.55 AU

Year: 20211 Days

Day: 19.8 Hours

Environment

Temp: -245 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,121,973 km

• M1: 98,286 km (0.055 R)
• M2: 401,521 km (0.065 R)
• M3: 928,255 km (0.036 R)
• M4: 1,668,615 km (0.115 R)
• M5: 2,065,498 km (0.077 R)
• M6: 2,874,822 km (0.082 R)
• M7: 3,284,272 km (0.054 R)
• M8: 4,316,198 km (0.072 R)
• M9: 5,067,029 km (0.117 R)
• M10: 6,186,022 km (0.056 R)
• M11: 6,479,084 km (0.044 R)
• M12: 7,275,842 km (0.054 R)
• M13: 9,332,364 km (0.078 R)
• M14: 10,288,893 km (0.05 R)
• M15: 12,862,425 km (0.066 R)
• M16: 16,948,840 km (0.091 R)
• M17: 17,774,770 km (0.106 R)
• M18: 21,253,220 km (0.107 R)
• M19: 25,266,482 km (0.084 R)
• M20: 27,563,108 km (0.099 R)
• M21: 28,015,941 km (0.119 R)
• M22: 31,941,988 km (0.053 R)
• M23: 33,328,162 km (0.045 R)
• M24: 35,017,421 km (0.111 R)
• M25: 36,219,888 km (0.119 R)
• M26: 46,368,309 km (0.116 R)
• M27: 47,980,375 km (0.119 R)
• M28: 52,692,260 km (0.113 R)
• M29: 53,565,014 km (0.038 R)
• M30: 55,878,993 km (0.092 R)
• M31: 58,630,846 km (0.107 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: 366 - 10,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit