🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.8

Radius: 11.7

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.79 AU - 1.01 AU

Year: 560 Days

Day: 9.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,659,036 km

• M1: 145,559 km (0.076 R)
• M2: 520,002 km (0.089 R)
• M3: 898,634 km (0.118 R)
• M4: 1,276,219 km (0.119 R)
• M5: 2,351,379 km (0.098 R)
• M6: 2,984,328 km (0.094 R)
• M7: 3,367,598 km (0.041 R)
• M8: 4,114,989 km (0.065 R)
• M9: 5,244,602 km (0.084 R)
• M10: 5,939,035 km (0.116 R)
• M11: 6,756,139 km (0.102 R)
• M12: 7,511,459 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980

Radius: 12

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.85 AU - 1.07 AU

Year: 617 Days

Day: 10.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,659,036 km

• M1: 149,299 km (0.038 R)
• M2: 586,124 km (0.068 R)
• M3: 1,025,942 km (0.117 R)
• M4: 1,565,542 km (0.119 R)
• M5: 2,066,844 km (0.119 R)
• M6: 2,531,046 km (0.109 R)
• M7: 3,345,607 km (0.089 R)
• M8: 3,946,093 km (0.093 R)
• M9: 4,470,882 km (0.116 R)
• M10: 4,903,369 km (0.097 R)
• M11: 5,474,085 km (0.059 R)
• M12: 6,009,346 km (0.083 R)
• M13: 6,412,812 km (0.113 R)
• M14: 7,342,263 km (0.088 R)
• M15: 8,334,845 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.1

Radius: 9.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.77 AU - 1.19 AU

Year: 636 Days

Day: 14.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 56,659,036 km

• M1: 113,844 km (0.095 R)
• M2: 446,250 km (0.037 R)
• M3: 1,127,968 km (0.114 R)
• M4: 2,458,641 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.1

Radius: 11.4

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.25 AU - 1.31 AU

Year: 950 Days

Day: 7.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,659,036 km

• M1: 142,567 km (0.116 R)
• M2: 941,120 km (0.066 R)
• M3: 1,368,073 km (0.085 R)
• M4: 1,981,873 km (0.058 R)
• M5: 2,491,702 km (0.088 R)
• M6: 3,399,312 km (0.119 R)
• M7: 4,346,865 km (0.119 R)
• M8: 5,718,678 km (0.076 R)
• M9: 6,213,398 km (0.029 R)
• M10: 6,625,390 km (0.092 R)
• M11: 7,336,579 km (0.077 R)
• M12: 7,921,656 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.1

Radius: 9.4

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 4.78 AU - 5.3 AU

Year: 7423 Days

Day: 8.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,659,036 km

• M1: 116,836 km (0.104 R)
• M2: 419,921 km (0.079 R)
• M3: 926,160 km (0.077 R)
• M4: 1,362,986 km (0.117 R)
• M5: 2,428,721 km (0.086 R)
• M6: 2,736,594 km (0.119 R)
• M7: 3,431,925 km (0.064 R)
• M8: 4,186,496 km (0.09 R)
• M9: 4,632,148 km (0.1 R)
• M10: 4,986,845 km (0.086 R)
• M11: 7,156,912 km (0.104 R)
• M12: 10,582,254 km (0.053 R)
• M13: 12,906,257 km (0.095 R)
• M14: 14,842,802 km (0.082 R)
• M15: 18,833,325 km (0.065 R)
• M16: 19,283,016 km (0.091 R)
• M17: 19,893,974 km (0.069 R)
• M18: 21,722,060 km (0.081 R)
• M19: 24,095,430 km (0.103 R)
• M20: 25,344,722 km (0.101 R)
• M21: 27,585,997 km (0.111 R)
• M22: 29,051,906 km (0.05 R)
• M23: 30,878,945 km (0.055 R)
• M24: 31,295,127 km (0.066 R)
• M25: 32,781,232 km (0.1 R)
• M26: 33,214,318 km (0.097 R)
• M27: 40,177,799 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976.7

Radius: 5.7

Gravity: 30.06 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 4.91 AU - 7.25 AU

Year: 9835 Days

Day: 15.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,659,036 km

• M1: 89,908 km (0.079 R)
• M2: 408,253 km (0.08 R)
• M3: 762,351 km (0.056 R)
• M4: 1,228,049 km (0.085 R)
• M5: 1,424,920 km (0.119 R)
• M6: 1,816,866 km (0.077 R)
• M7: 2,038,421 km (0.058 R)
• M8: 2,577,571 km (0.08 R)
• M9: 3,743,238 km (0.117 R)
• M10: 4,578,892 km (0.079 R)
• M11: 4,893,945 km (0.102 R)
• M12: 5,291,127 km (0.091 R)
• M13: 5,638,344 km (0.107 R)
• M14: 6,892,423 km (0.104 R)
• M15: 7,606,154 km (0.071 R)
• M16: 7,825,315 km (0.083 R)
• M17: 8,791,568 km (0.098 R)
• M18: 9,130,706 km (0.059 R)
• M19: 10,467,064 km (0.09 R)
• M20: 10,683,682 km (0.095 R)
• M21: 11,522,626 km (0.079 R)
• M22: 12,046,518 km (0.045 R)
• M23: 13,908,264 km (0.098 R)
• M24: 16,168,388 km (0.076 R)
• M25: 18,900,793 km (0.104 R)
• M26: 23,925,636 km (0.103 R)
• M27: 24,301,725 km (0.119 R)
• M28: 27,454,201 km (0.1 R)
• M29: 29,881,576 km (0.087 R)
• M30: 30,758,220 km (0.074 R)
• M31: 34,556,510 km (0.085 R)
• M32: 43,904,581 km (0.116 R)
• M33: 51,147,213 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.9

Radius: 3.5

Gravity: 63.91 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 5.06 AU - 8.38 AU

Year: 11428 Days

Day: 18.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 56,659,036 km

• M1: 43,533 km (0.112 R)
• M2: 163,810 km (0.076 R)
• M3: 331,808 km (0.116 R)
• M4: 449,392 km (0.119 R)
• M5: 658,679 km (0.098 R)
• M6: 1,120,937 km (0.115 R)
• M7: 1,406,220 km (0.072 R)
• M8: 2,194,900 km (0.101 R)
• M9: 2,705,178 km (0.054 R)
• M10: 3,070,795 km (0.096 R)
• M11: 4,580,088 km (0.096 R)
• M12: 4,932,242 km (0.12 R)
• M13: 5,406,018 km (0.108 R)
• M14: 5,909,565 km (0.083 R)
• M15: 6,288,047 km (0.079 R)
• M16: 8,331,554 km (0.085 R)
• M17: 10,503,715 km (0.114 R)
• M18: 11,057,975 km (0.097 R)
• M19: 12,467,487 km (0.065 R)
• M20: 14,258,023 km (0.093 R)
• M21: 15,851,390 km (0.079 R)
• M22: 16,358,976 km (0.115 R)
• M23: 19,060,265 km (0.057 R)
• M24: 21,075,049 km (0.093 R)
• M25: 22,133,903 km (0.115 R)
• M26: 24,261,334 km (0.077 R)
• M27: 26,118,442 km (0.094 R)
• M28: 26,724,014 km (0.099 R)
• M29: 27,235,788 km (0.115 R)
• M30: 31,002,364 km (0.037 R)
• M31: 32,834,339 km (0.094 R)
• M32: 33,303,328 km (0.114 R)
• M33: 36,211,511 km (0.108 R)
• M34: 37,599,181 km (0.103 R)
• M35: 38,500,358 km (0.077 R)
• M36: 42,111,801 km (0.107 R)
• M37: 45,942,553 km (0.06 R)
• M38: 50,153,733 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.2

Radius: 6.4

Gravity: 14.7 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.77 AU - 8.77 AU

Year: 15602 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 113.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,659,036 km

• M1: 79,586 km (0.113 R)
• M2: 565,779 km (0.118 R)
• M3: 820,395 km (0.059 R)
• M4: 1,829,881 km (0.115 R)
• M5: 2,793,142 km (0.077 R)
• M6: 4,552,712 km (0.108 R)
• M7: 12,240,696 km (0.031 R)
• M8: 12,943,357 km (0.039 R)
• M9: 13,808,033 km (0.079 R)
• M10: 14,569,187 km (0.028 R)
• M11: 16,942,707 km (0.073 R)
• M12: 17,177,576 km (0.089 R)
• M13: 17,734,229 km (0.119 R)
• M14: 22,251,935 km (0.108 R)
• M15: 22,913,307 km (0.074 R)
• M16: 30,378,989 km (0.102 R)
• M17: 30,609,968 km (0.117 R)
• M18: 44,751,156 km (0.107 R)
• M19: 49,379,415 km (0.115 R)
• M20: 52,304,203 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 231.7

Radius: 3.2

Gravity: 22.63 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 8.32 AU - 12.54 AU

Year: 22097 Days

Day: 17.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,659,036 km

• M1: 39,793 km (0.098 R)
• M2: 246,537 km (0.103 R)
• M3: 492,775 km (0.096 R)
• M4: 594,652 km (0.103 R)
• M5: 1,046,437 km (0.102 R)
• M6: 1,191,846 km (0.108 R)
• M7: 1,826,440 km (0.028 R)
• M8: 5,199,274 km (0.098 R)
• M9: 6,031,487 km (0.12 R)
• M10: 8,326,767 km (0.114 R)
• M11: 11,317,079 km (0.033 R)
• M12: 11,550,302 km (0.083 R)
• M13: 11,727,426 km (0.072 R)
• M14: 17,608,118 km (0.117 R)
• M15: 19,879,313 km (0.068 R)
• M16: 20,218,900 km (0.069 R)
• M17: 39,820,260 km (0.109 R)
• M18: 41,177,861 km (0.05 R)
• M19: 41,315,192 km (0.083 R)
• M20: 43,413,601 km (0.095 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 19,542 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit