🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345

Radius: 13.7

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.64 AU - 0.98 AU

Year: 478 Days

Day: 8.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,419,237 km

• M1: 170,392 km (0.036 R)
• M2: 734,526 km (0.105 R)
• M3: 1,288,486 km (0.069 R)
• M4: 1,778,868 km (0.115 R)
• M5: 2,429,918 km (0.086 R)
• M6: 3,088,747 km (0.089 R)
• M7: 3,697,311 km (0.116 R)
• M8: 4,202,204 km (0.119 R)
• M9: 5,024,544 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.4

Radius: 14.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.8 AU - 1.1 AU

Year: 607 Days

Day: 7.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,419,237 km

• M1: 178,620 km (0.08 R)
• M2: 777,909 km (0.031 R)
• M3: 1,223,112 km (0.104 R)
• M4: 2,226,914 km (0.085 R)
• M5: 3,035,939 km (0.084 R)
• M6: 3,561,925 km (0.069 R)
• M7: 4,465,945 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.3

Radius: 12.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.36 AU - 2.1 AU

Year: 1493 Days

Day: 14.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,419,237 km

• M1: 153,039 km (0.047 R)
• M2: 617,989 km (0.107 R)
• M3: 1,344,735 km (0.099 R)
• M4: 2,076,867 km (0.067 R)
• M5: 2,792,095 km (0.086 R)
• M6: 3,744,734 km (0.06 R)
• M7: 4,349,558 km (0.086 R)
• M8: 5,842,096 km (0.119 R)
• M9: 6,563,607 km (0.092 R)
• M10: 6,970,662 km (0.085 R)
• M11: 7,369,191 km (0.111 R)
• M12: 7,888,745 km (0.061 R)
• M13: 8,572,556 km (0.106 R)
• M14: 9,325,333 km (0.119 R)
• M15: 10,731,702 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.2

Radius: 9.3

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.39 AU - 3.59 AU

Year: 3392 Days

Day: 12.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 167 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,419,237 km

• M1: 115,639 km (0.111 R)
• M2: 418,126 km (0.102 R)
• M3: 747,989 km (0.042 R)
• M4: 1,047,185 km (0.101 R)
• M5: 1,582,297 km (0.065 R)
• M6: 2,064,002 km (0.064 R)
• M7: 2,389,527 km (0.114 R)
• M8: 3,180,451 km (0.116 R)
• M9: 3,598,577 km (0.08 R)
• M10: 4,935,084 km (0.075 R)
• M11: 5,321,795 km (0.098 R)
• M12: 5,754,731 km (0.108 R)
• M13: 6,405,781 km (0.054 R)
• M14: 7,536,142 km (0.086 R)
• M15: 8,655,733 km (0.092 R)
• M16: 9,076,252 km (0.087 R)
• M17: 9,400,431 km (0.101 R)
• M18: 15,497,143 km (0.096 R)
• M19: 16,013,255 km (0.087 R)
• M20: 19,354,075 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.5

Radius: 11.7

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.22 AU - 6.24 AU

Year: 7846 Days

Day: 9.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 32,419,237 km

• M1: 145,708 km (0.079 R)
• M2: 554,559 km (0.03 R)
• M3: 1,070,971 km (0.081 R)
• M4: 2,028,398 km (0.03 R)
• M5: 2,572,784 km (0.092 R)
• M6: 4,113,343 km (0.075 R)
• M7: 4,666,257 km (0.065 R)
• M8: 5,268,239 km (0.041 R)
• M9: 6,664,884 km (0.1 R)
• M10: 7,078,373 km (0.056 R)
• M11: 7,509,215 km (0.045 R)
• M12: 7,957,410 km (0.105 R)
• M13: 8,952,685 km (0.052 R)
• M14: 9,980,422 km (0.063 R)
• M15: 12,835,497 km (0.108 R)
• M16: 13,359,239 km (0.119 R)
• M17: 17,576,403 km (0.096 R)
• M18: 18,736,535 km (0.09 R)
• M19: 20,729,627 km (0.086 R)
• M20: 21,451,287 km (0.118 R)
• M21: 24,153,773 km (0.082 R)
• M22: 26,417,189 km (0.11 R)
• M23: 28,621,513 km (0.089 R)
• M24: 33,721,305 km (0.041 R)
• M25: 35,056,765 km (0.116 R)
• M26: 36,775,345 km (0.031 R)
• M27: 37,242,988 km (0.11 R)
• M28: 38,309,621 km (0.106 R)
• M29: 41,379,369 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.7

Radius: 11.1

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.36 AU - 6.52 AU

Year: 8324 Days

Day: 10.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,419,237 km

• M1: 143,315 km (0.025 R)
• M2: 498,460 km (0.037 R)
• M3: 1,176,587 km (0.042 R)
• M4: 1,620,145 km (0.072 R)
• M5: 2,057,719 km (0.031 R)
• M6: 3,569,854 km (0.118 R)
• M7: 4,102,871 km (0.077 R)
• M8: 5,620,542 km (0.078 R)
• M9: 6,272,340 km (0.101 R)
• M10: 10,820,414 km (0.101 R)
• M11: 11,344,007 km (0.099 R)
• M12: 12,328,959 km (0.097 R)
• M13: 13,251,529 km (0.072 R)
• M14: 13,851,117 km (0.101 R)
• M15: 22,274,824 km (0.064 R)
• M16: 25,704,205 km (0.111 R)
• M17: 31,856,268 km (0.082 R)
• M18: 35,499,874 km (0.062 R)
• M19: 36,539,878 km (0.12 R)
• M20: 41,663,306 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.7

Radius: 12.8

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.11 AU - 5.95 AU

Year: 8531 Days

Day: 12.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,419,237 km

• M1: 159,322 km (0.103 R)
• M2: 912,547 km (0.109 R)
• M3: 1,375,852 km (0.036 R)
• M4: 2,028,248 km (0.079 R)
• M5: 2,822,762 km (0.111 R)
• M6: 3,910,040 km (0.087 R)
• M7: 5,435,938 km (0.111 R)
• M8: 5,865,284 km (0.115 R)
• M9: 7,625,153 km (0.101 R)
• M10: 8,770,923 km (0.101 R)
• M11: 9,937,936 km (0.111 R)
• M12: 12,525,979 km (0.079 R)
• M13: 13,114,797 km (0.106 R)
• M14: 13,834,362 km (0.114 R)
• M15: 14,290,187 km (0.08 R)
• M16: 15,718,099 km (0.081 R)
• M17: 18,511,241 km (0.073 R)
• M18: 22,624,733 km (0.11 R)
• M19: 24,977,758 km (0.107 R)
• M20: 25,484,296 km (0.099 R)
• M21: 27,758,782 km (0.066 R)
• M22: 28,393,526 km (0.082 R)
• M23: 29,598,088 km (0.102 R)
• M24: 32,109,089 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.5

Radius: 7.3

Gravity: 15.72 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 6.28 AU - 7.98 AU

Year: 12489 Days

Day: 24.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 55.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 32,419,237 km

• M1: 110,254 km (0.113 R)
• M2: 347,815 km (0.12 R)
• M3: 624,870 km (0.06 R)
• M4: 890,855 km (0.061 R)
• M5: 1,182,870 km (0.088 R)
• M6: 1,508,545 km (0.073 R)
• M7: 1,963,622 km (0.11 R)
• M8: 2,701,438 km (0.1 R)
• M9: 2,953,212 km (0.097 R)
• M10: 5,043,842 km (0.117 R)
• M11: 5,320,897 km (0.034 R)
• M12: 6,213,548 km (0.072 R)
• M13: 6,861,755 km (0.114 R)
• M14: 8,679,070 km (0.068 R)
• M15: 16,616,883 km (0.115 R)
• M16: 20,101,316 km (0.105 R)
• M17: 21,333,255 km (0.098 R)
• M18: 26,454,289 km (0.106 R)
• M19: 33,538,795 km (0.065 R)
• M20: 34,149,903 km (0.109 R)
• M21: 35,268,596 km (0.119 R)
• M22: 36,539,878 km (0.078 R)
• M23: 37,317,189 km (0.103 R)
• M24: 37,578,836 km (0.076 R)
• M25: 37,841,529 km (0.116 R)
• M26: 41,091,094 km (0.118 R)
• M27: 42,214,275 km (0.112 R)
• M28: 43,502,313 km (0.046 R)
• M29: 47,830,478 km (0.095 R)
• M30: 50,018,946 km (0.054 R)
• M31: 51,137,938 km (0.075 R)
• M32: 51,622,635 km (0.114 R)
• M33: 55,951,698 km (0.054 R)
• M34: 58,204,343 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37

Radius: 5.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 9.91 AU - 12.09 AU

Year: 23933 Days

Day: 19.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,419,237 km

• M1: 69,713 km (0.118 R)
• M2: 833,111 km (0.105 R)
• M3: 2,712,957 km (0.031 R)
• M4: 4,696,326 km (0.057 R)
• M5: 5,539,310 km (0.057 R)
• M6: 6,712,606 km (0.075 R)
• M7: 6,951,813 km (0.115 R)
• M8: 8,789,772 km (0.03 R)
• M9: 9,625,127 km (0.11 R)
• M10: 12,550,214 km (0.062 R)
• M11: 13,284,291 km (0.036 R)
• M12: 14,102,142 km (0.117 R)
• M13: 14,665,678 km (0.098 R)
• M14: 17,133,893 km (0.114 R)
• M15: 18,633,163 km (0.099 R)
• M16: 19,518,034 km (0.067 R)
• M17: 22,874,711 km (0.065 R)
• M18: 27,717,643 km (0.101 R)
• M19: 28,068,749 km (0.055 R)
• M20: 29,594,199 km (0.104 R)
• M21: 31,079,406 km (0.106 R)
• M22: 31,553,632 km (0.104 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 13,921 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit