🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.6

Radius: 8.5

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.7 AU - 0.72 AU

Year: 380 Days

Day: 13.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,244,534 km

• M1: 107,411 km (0.101 R)
• M2: 474,375 km (0.072 R)
• M3: 744,100 km (0.062 R)
• M4: 1,089,671 km (0.037 R)
• M5: 2,100,803 km (0.111 R)
• M6: 2,991,209 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.1

Radius: 13.3

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.8 AU - 1.96 AU

Year: 1639 Days

Day: 6.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,244,534 km

• M1: 165,455 km (0.066 R)
• M2: 745,446 km (0.031 R)
• M3: 1,221,915 km (0.1 R)
• M4: 2,049,042 km (0.084 R)
• M5: 2,669,724 km (0.057 R)
• M6: 3,545,021 km (0.087 R)
• M7: 4,683,760 km (0.105 R)
• M8: 5,142,277 km (0.116 R)
• M9: 6,962,883 km (0.028 R)
• M10: 7,590,446 km (0.109 R)
• M11: 8,648,253 km (0.07 R)
• M12: 10,312,230 km (0.111 R)
• M13: 13,923,373 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.9

Radius: 9.9

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.05 AU - 2.87 AU

Year: 2453 Days

Day: 5.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,244,534 km

• M1: 123,119 km (0.102 R)
• M2: 555,906 km (0.084 R)
• M3: 871,108 km (0.114 R)
• M4: 1,479,972 km (0.056 R)
• M5: 2,647,583 km (0.069 R)
• M6: 6,154,606 km (0.065 R)
• M7: 9,055,309 km (0.119 R)
• M8: 9,400,730 km (0.097 R)
• M9: 10,697,445 km (0.068 R)
• M10: 12,801,688 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.3

Radius: 9.3

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.61 AU - 5.07 AU

Year: 5749 Days

Day: 8.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,244,534 km

• M1: 128,654 km (0.029 R)
• M2: 431,739 km (0.068 R)
• M3: 736,620 km (0.092 R)
• M4: 1,062,893 km (0.027 R)
• M5: 1,426,864 km (0.075 R)
• M6: 2,195,199 km (0.094 R)
• M7: 2,871,830 km (0.11 R)
• M8: 3,174,766 km (0.119 R)
• M9: 5,170,402 km (0.098 R)
• M10: 5,590,622 km (0.066 R)
• M11: 6,364,043 km (0.081 R)
• M12: 8,691,487 km (0.116 R)
• M13: 9,505,598 km (0.111 R)
• M14: 10,323,001 km (0.093 R)
• M15: 11,839,624 km (0.108 R)
• M16: 14,355,860 km (0.093 R)
• M17: 18,837,513 km (0.113 R)
• M18: 20,051,949 km (0.099 R)
• M19: 21,546,581 km (0.064 R)
• M20: 25,093,696 km (0.108 R)
• M21: 27,724,076 km (0.072 R)
• M22: 30,339,795 km (0.046 R)
• M23: 31,018,670 km (0.102 R)
• M24: 32,306,109 km (0.111 R)
• M25: 34,775,970 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293

Radius: 9

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 4.01 AU - 5.37 AU

Year: 6458 Days

Day: 8.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,244,534 km

• M1: 112,049 km (0.086 R)
• M2: 398,080 km (0.058 R)
• M3: 753,824 km (0.044 R)
• M4: 1,196,334 km (0.072 R)
• M5: 1,633,459 km (0.118 R)
• M6: 2,796,283 km (0.116 R)
• M7: 3,613,836 km (0.098 R)
• M8: 3,911,984 km (0.044 R)
• M9: 4,780,550 km (0.119 R)
• M10: 5,887,125 km (0.109 R)
• M11: 6,454,251 km (0.104 R)
• M12: 7,090,191 km (0.11 R)
• M13: 8,412,786 km (0.086 R)
• M14: 8,900,924 km (0.081 R)
• M15: 9,487,497 km (0.041 R)
• M16: 9,851,768 km (0.063 R)
• M17: 10,781,369 km (0.078 R)
• M18: 13,613,406 km (0.067 R)
• M19: 14,129,369 km (0.113 R)
• M20: 15,255,243 km (0.083 R)
• M21: 16,324,568 km (0.115 R)
• M22: 17,203,306 km (0.12 R)
• M23: 18,361,343 km (0.103 R)
• M24: 19,376,215 km (0.047 R)
• M25: 22,217,528 km (0.103 R)
• M26: 23,150,420 km (0.119 R)
• M27: 23,589,639 km (0.087 R)
• M28: 24,034,544 km (0.026 R)
• M29: 24,636,226 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198

Radius: 14.6

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.02 AU - 5.88 AU

Year: 7002 Days

Day: 10.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,244,534 km

• M1: 181,612 km (0.113 R)
• M2: 643,271 km (0.085 R)
• M3: 1,310,328 km (0.083 R)
• M4: 2,059,364 km (0.096 R)
• M5: 3,629,843 km (0.12 R)
• M6: 4,131,744 km (0.058 R)
• M7: 5,225,304 km (0.067 R)
• M8: 6,444,377 km (0.08 R)
• M9: 7,379,214 km (0.075 R)
• M10: 11,201,889 km (0.068 R)
• M11: 13,171,943 km (0.067 R)
• M12: 15,633,875 km (0.09 R)
• M13: 18,388,570 km (0.081 R)
• M14: 20,787,971 km (0.036 R)
• M15: 21,926,261 km (0.084 R)
• M16: 22,964,919 km (0.051 R)
• M17: 24,108,594 km (0.095 R)
• M18: 24,991,072 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.4

Radius: 10.6

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.26 AU - 6.62 AU

Year: 8067 Days

Day: 13.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,244,534 km

• M1: 132,993 km (0.052 R)
• M2: 523,892 km (0.118 R)
• M3: 877,541 km (0.044 R)
• M4: 1,336,059 km (0.116 R)
• M5: 1,693,897 km (0.036 R)
• M6: 2,512,347 km (0.069 R)
• M7: 3,022,326 km (0.118 R)
• M8: 4,390,099 km (0.095 R)
• M9: 5,008,686 km (0.109 R)
• M10: 5,957,586 km (0.102 R)
• M11: 7,257,442 km (0.079 R)
• M12: 9,148,957 km (0.073 R)
• M13: 11,783,375 km (0.112 R)
• M14: 12,116,680 km (0.063 R)
• M15: 14,064,743 km (0.1 R)
• M16: 15,211,111 km (0.112 R)
• M17: 16,834,996 km (0.094 R)
• M18: 17,258,508 km (0.081 R)
• M19: 19,176,203 km (0.115 R)
• M20: 24,047,409 km (0.114 R)
• M21: 26,057,107 km (0.026 R)
• M22: 27,490,105 km (0.1 R)
• M23: 28,573,792 km (0.112 R)
• M24: 29,583,428 km (0.111 R)
• M25: 31,142,238 km (0.113 R)
• M26: 34,197,624 km (0.117 R)
• M27: 37,327,810 km (0.04 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.4

Radius: 3.7

Gravity: 58.1 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.4 AU - 7.48 AU

Year: 10391 Days

Day: 19.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 104.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,244,534 km

• M1: 46,375 km (0.12 R)
• M2: 193,879 km (0.092 R)
• M3: 318,045 km (0.046 R)
• M4: 707,598 km (0.088 R)
• M5: 892,202 km (0.037 R)
• M6: 1,131,708 km (0.029 R)
• M7: 1,629,570 km (0.052 R)
• M8: 1,754,035 km (0.086 R)
• M9: 2,475,396 km (0.086 R)
• M10: 2,640,552 km (0.101 R)
• M11: 2,924,638 km (0.111 R)
• M12: 3,252,856 km (0.103 R)
• M13: 4,209,385 km (0.088 R)
• M14: 4,783,093 km (0.052 R)
• M15: 5,204,660 km (0.036 R)
• M16: 5,650,611 km (0.1 R)
• M17: 5,864,685 km (0.075 R)
• M18: 7,777,593 km (0.118 R)
• M19: 8,268,125 km (0.115 R)
• M20: 9,863,287 km (0.092 R)
• M21: 10,978,689 km (0.046 R)
• M22: 11,312,142 km (0.111 R)
• M23: 12,293,803 km (0.048 R)
• M24: 14,690,810 km (0.065 R)
• M25: 17,607,221 km (0.1 R)
• M26: 27,489,656 km (0.101 R)
• M27: 29,466,442 km (0.093 R)
• M28: 35,117,352 km (0.068 R)
• M29: 36,205,826 km (0.079 R)
• M30: 37,817,145 km (0.09 R)
• M31: 38,069,367 km (0.089 R)
• M32: 38,195,777 km (0.118 R)
• M33: 39,088,876 km (0.082 R)
• M34: 42,256,611 km (0.104 R)
• M35: 43,625,432 km (0.051 R)
• M36: 48,649,228 km (0.088 R)
• M37: 50,915,336 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.1

Radius: 4.6

Gravity: 40.84 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.47 AU - 9.77 AU

Year: 17512 Days

Day: 20.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,244,534 km

• M1: 60,438 km (0.114 R)
• M2: 211,232 km (0.082 R)
• M3: 1,440,627 km (0.091 R)
• M4: 2,007,155 km (0.074 R)
• M5: 4,905,314 km (0.059 R)
• M6: 5,126,270 km (0.091 R)
• M7: 6,331,879 km (0.119 R)
• M8: 6,505,712 km (0.096 R)
• M9: 8,529,173 km (0.112 R)
• M10: 14,651,466 km (0.096 R)
• M11: 15,187,176 km (0.055 R)
• M12: 18,679,089 km (0.114 R)
• M13: 20,610,398 km (0.117 R)
• M14: 24,436,214 km (0.064 R)
• M15: 26,627,972 km (0.117 R)
• M16: 28,237,795 km (0.07 R)
• M17: 29,186,245 km (0.064 R)
• M18: 30,401,578 km (0.05 R)
• M19: 41,664,952 km (0.074 R)
• M20: 68,255,076 km (0.085 R)
• M21: 68,678,587 km (0.116 R)
• M22: 73,011,390 km (0.115 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: 235 - 17,063 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit