🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.6

Radius: 13.6

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.59 AU - 0.95 AU

Year: 475 Days

Day: 9.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,850,900 km

• M1: 169,195 km (0.112 R)
• M2: 644,617 km (0.113 R)
• M3: 1,209,648 km (0.104 R)
• M4: 1,762,413 km (0.114 R)
• M5: 2,264,912 km (0.059 R)
• M6: 2,756,640 km (0.077 R)
• M7: 3,392,431 km (0.079 R)
• M8: 3,932,180 km (0.098 R)
• M9: 4,649,352 km (0.059 R)
• M10: 5,301,449 km (0.052 R)
• M11: 5,745,905 km (0.119 R)
• M12: 6,613,423 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.7

Radius: 14.6

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.97 AU - 1.03 AU

Year: 703 Days

Day: 12.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,850,900 km

• M1: 187,745 km (0.082 R)
• M2: 705,653 km (0.107 R)
• M3: 1,374,356 km (0.059 R)
• M4: 1,932,206 km (0.106 R)
• M5: 2,519,378 km (0.103 R)
• M6: 2,996,445 km (0.117 R)
• M7: 4,406,405 km (0.12 R)
• M8: 5,017,213 km (0.064 R)
• M9: 6,181,683 km (0.108 R)
• M10: 6,686,726 km (0.101 R)
• M11: 7,151,227 km (0.079 R)
• M12: 8,395,283 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.2

Radius: 12.4

Gravity: 6.3 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.17 AU - 1.31 AU

Year: 971 Days

Day: 14.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,850,900 km

• M1: 154,235 km (0.115 R)
• M2: 703,858 km (0.11 R)
• M3: 1,433,148 km (0.104 R)
• M4: 1,880,595 km (0.105 R)
• M5: 2,673,912 km (0.093 R)
• M6: 3,093,086 km (0.055 R)
• M7: 4,049,166 km (0.095 R)
• M8: 4,789,825 km (0.078 R)
• M9: 5,829,829 km (0.106 R)
• M10: 7,185,784 km (0.034 R)
• M11: 7,587,604 km (0.104 R)
• M12: 8,191,381 km (0.053 R)
• M13: 8,912,443 km (0.099 R)
• M14: 9,465,656 km (0.077 R)
• M15: 10,134,957 km (0.101 R)
• M16: 10,737,986 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.3

Radius: 8.2

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.51 AU - 1.55 AU

Year: 1330 Days

Day: 9.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,850,900 km

• M1: 102,026 km (0.104 R)
• M2: 418,126 km (0.092 R)
• M3: 902,075 km (0.117 R)
• M4: 1,911,113 km (0.06 R)
• M5: 2,278,076 km (0.053 R)
• M6: 3,033,845 km (0.048 R)
• M7: 3,594,388 km (0.107 R)
• M8: 4,407,303 km (0.108 R)
• M9: 4,703,955 km (0.101 R)
• M10: 7,805,119 km (0.111 R)
• M11: 9,357,496 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.1

Radius: 11.2

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.47 AU - 2.29 AU

Year: 1812 Days

Day: 5.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,850,900 km

• M1: 142,118 km (0.086 R)
• M2: 495,319 km (0.04 R)
• M3: 870,510 km (0.108 R)
• M4: 1,754,185 km (0.12 R)
• M5: 2,223,324 km (0.11 R)
• M6: 2,821,715 km (0.033 R)
• M7: 3,197,505 km (0.073 R)
• M8: 3,703,894 km (0.109 R)
• M9: 4,467,591 km (0.106 R)
• M10: 5,589,425 km (0.088 R)
• M11: 6,868,786 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.2

Radius: 9.3

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.17 AU - 2.65 AU

Year: 2630 Days

Day: 10.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 72,850,900 km

• M1: 116,238 km (0.062 R)
• M2: 556,354 km (0.116 R)
• M3: 855,700 km (0.077 R)
• M4: 1,275,920 km (0.109 R)
• M5: 1,608,476 km (0.08 R)
• M6: 2,138,651 km (0.119 R)
• M7: 3,089,645 km (0.101 R)
• M8: 3,474,859 km (0.025 R)
• M9: 4,112,745 km (0.067 R)
• M10: 4,668,800 km (0.097 R)
• M11: 5,058,802 km (0.107 R)
• M12: 5,445,662 km (0.038 R)
• M13: 6,063,052 km (0.026 R)
• M14: 6,612,525 km (0.118 R)
• M15: 6,987,268 km (0.085 R)
• M16: 8,099,678 km (0.108 R)
• M17: 9,113,353 km (0.12 R)
• M18: 9,909,064 km (0.108 R)
• M19: 10,247,604 km (0.098 R)
• M20: 10,710,908 km (0.071 R)
• M21: 11,027,607 km (0.09 R)
• M22: 11,846,655 km (0.07 R)
• M23: 12,793,909 km (0.05 R)
• M24: 16,561,232 km (0.084 R)
• M25: 17,307,726 km (0.08 R)
• M26: 18,696,592 km (0.086 R)
• M27: 19,214,351 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.6

Radius: 5.3

Gravity: 23.66 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.74 AU - 8.46 AU

Year: 13298 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,850,900 km

• M1: 65,973 km (0.065 R)
• M2: 328,068 km (0.103 R)
• M3: 545,434 km (0.086 R)
• M4: 2,125,786 km (0.1 R)
• M5: 2,876,019 km (0.115 R)
• M6: 5,015,269 km (0.114 R)
• M7: 5,219,619 km (0.119 R)
• M8: 5,903,581 km (0.1 R)
• M9: 7,059,972 km (0.047 R)
• M10: 10,569,389 km (0.111 R)
• M11: 10,962,532 km (0.098 R)
• M12: 16,845,917 km (0.065 R)
• M13: 18,088,477 km (0.049 R)
• M14: 20,321,524 km (0.086 R)
• M15: 21,818,101 km (0.115 R)
• M16: 22,731,995 km (0.097 R)
• M17: 23,198,291 km (0.086 R)
• M18: 23,766,315 km (0.048 R)
• M19: 32,721,093 km (0.096 R)
• M20: 33,196,067 km (0.096 R)
• M21: 33,917,128 km (0.098 R)
• M22: 38,860,590 km (0.049 R)
• M23: 40,336,971 km (0.11 R)
• M24: 43,687,365 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.9

Radius: 7.8

Gravity: 12.49 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.53 AU - 9.71 AU

Year: 17790 Days

Day: 19.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,850,900 km

• M1: 97,837 km (0.1 R)
• M2: 384,018 km (0.068 R)
• M3: 948,002 km (0.057 R)
• M4: 1,593,666 km (0.102 R)
• M5: 1,945,820 km (0.115 R)
• M6: 2,735,397 km (0.119 R)
• M7: 3,812,203 km (0.109 R)
• M8: 4,248,879 km (0.084 R)
• M9: 4,894,394 km (0.096 R)
• M10: 5,487,250 km (0.102 R)
• M11: 6,003,363 km (0.096 R)
• M12: 7,650,585 km (0.113 R)
• M13: 10,745,465 km (0.087 R)
• M14: 11,363,305 km (0.075 R)
• M15: 13,499,712 km (0.107 R)
• M16: 14,737,335 km (0.041 R)
• M17: 20,355,034 km (0.063 R)
• M18: 21,013,415 km (0.058 R)
• M19: 26,246,647 km (0.071 R)
• M20: 29,818,296 km (0.099 R)
• M21: 33,701,259 km (0.119 R)
• M22: 35,560,461 km (0.092 R)
• M23: 39,626,980 km (0.096 R)
• M24: 46,696,227 km (0.098 R)
• M25: 61,105,644 km (0.118 R)
• M26: 62,277,594 km (0.103 R)
• M27: 65,070,287 km (0.094 R)
• M28: 65,475,996 km (0.066 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 16,683 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit