🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.9

Radius: 15

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.59 AU - 0.67 AU

Year: 339 Days

Day: 6.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,673,144 km

• M1: 186,848 km (0.116 R)
• M2: 677,978 km (0.094 R)
• M3: 1,169,407 km (0.084 R)
• M4: 1,682,826 km (0.113 R)
• M5: 2,229,756 km (0.114 R)
• M6: 2,967,423 km (0.048 R)
• M7: 3,515,550 km (0.075 R)
• M8: 4,397,579 km (0.112 R)
• M9: 5,375,949 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.8

Radius: 9

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.61 AU - 0.73 AU

Year: 372 Days

Day: 8.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 73.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,673,144 km

• M1: 111,899 km (0.107 R)
• M2: 458,817 km (0.117 R)
• M3: 887,714 km (0.116 R)
• M4: 1,189,453 km (0.065 R)
• M5: 1,845,589 km (0.119 R)
• M6: 2,484,970 km (0.112 R)
• M7: 2,775,190 km (0.075 R)
• M8: 3,120,911 km (0.118 R)
• M9: 3,675,021 km (0.092 R)
• M10: 4,001,893 km (0.036 R)
• M11: 4,528,477 km (0.098 R)
• M12: 4,816,154 km (0.114 R)
• M13: 5,177,433 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723

Radius: 14.9

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.74 AU - 0.98 AU

Year: 541 Days

Day: 5.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,673,144 km

• M1: 186,399 km (0.074 R)
• M2: 718,070 km (0.038 R)
• M3: 1,273,227 km (0.074 R)
• M4: 1,916,947 km (0.115 R)
• M5: 2,807,054 km (0.092 R)
• M6: 3,690,579 km (0.101 R)
• M7: 4,212,676 km (0.077 R)
• M8: 4,911,298 km (0.097 R)
• M9: 5,407,813 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.8

Radius: 11

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.95 AU - 1.13 AU

Year: 719 Days

Day: 13.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,673,144 km

• M1: 136,882 km (0.094 R)
• M2: 665,711 km (0.031 R)
• M3: 1,031,477 km (0.079 R)
• M4: 1,403,976 km (0.058 R)
• M5: 1,977,385 km (0.113 R)
• M6: 3,809,510 km (0.09 R)
• M7: 5,146,915 km (0.068 R)
• M8: 5,525,547 km (0.093 R)
• M9: 5,904,179 km (0.106 R)
• M10: 7,125,197 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.5

Radius: 11.3

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.14 AU - 1.86 AU

Year: 1246 Days

Day: 5.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 177.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,673,144 km

• M1: 140,622 km (0.099 R)
• M2: 627,563 km (0.102 R)
• M3: 1,072,617 km (0.072 R)
• M4: 1,583,793 km (0.091 R)
• M5: 2,214,048 km (0.107 R)
• M6: 2,627,687 km (0.103 R)
• M7: 3,105,502 km (0.108 R)
• M8: 3,683,548 km (0.084 R)
• M9: 4,509,927 km (0.113 R)
• M10: 5,418,584 km (0.099 R)
• M11: 6,592,778 km (0.096 R)
• M12: 7,049,351 km (0.08 R)
• M13: 8,597,988 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 10.4

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.33 AU - 1.77 AU

Year: 1309 Days

Day: 14.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 167.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 44,673,144 km

• M1: 131,796 km (0.081 R)
• M2: 639,680 km (0.109 R)
• M3: 1,622,090 km (0.034 R)
• M4: 2,221,379 km (0.037 R)
• M5: 2,689,171 km (0.078 R)
• M6: 3,861,570 km (0.051 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.5

Radius: 9.6

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.18 AU - 2.56 AU

Year: 2475 Days

Day: 7.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,673,144 km

• M1: 120,277 km (0.116 R)
• M2: 450,290 km (0.117 R)
• M3: 973,433 km (0.109 R)
• M4: 1,528,292 km (0.088 R)
• M5: 2,400,896 km (0.048 R)
• M6: 2,947,527 km (0.103 R)
• M7: 4,471,929 km (0.101 R)
• M8: 4,962,161 km (0.052 R)
• M9: 5,752,337 km (0.097 R)
• M10: 7,233,655 km (0.109 R)
• M11: 8,564,328 km (0.084 R)
• M12: 9,734,184 km (0.045 R)
• M13: 10,122,839 km (0.101 R)
• M14: 10,669,769 km (0.094 R)
• M15: 12,183,999 km (0.089 R)
• M16: 13,141,575 km (0.029 R)
• M17: 14,058,909 km (0.08 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.4

Radius: 9.3

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.23 AU - 4.01 AU

Year: 4671 Days

Day: 12.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,673,144 km

• M1: 115,639 km (0.098 R)
• M2: 405,410 km (0.1 R)
• M3: 726,597 km (0.03 R)
• M4: 1,098,348 km (0.068 R)
• M5: 1,476,531 km (0.084 R)
• M6: 2,177,696 km (0.089 R)
• M7: 2,467,168 km (0.093 R)
• M8: 3,369,094 km (0.11 R)
• M9: 4,083,124 km (0.062 R)
• M10: 4,867,765 km (0.103 R)
• M11: 5,225,454 km (0.114 R)
• M12: 5,571,174 km (0.092 R)
• M13: 6,437,496 km (0.07 R)
• M14: 7,716,857 km (0.109 R)
• M15: 8,514,363 km (0.112 R)
• M16: 9,034,963 km (0.102 R)
• M17: 11,049,299 km (0.046 R)
• M18: 12,161,110 km (0.062 R)
• M19: 13,613,406 km (0.074 R)
• M20: 14,159,139 km (0.076 R)
• M21: 14,947,520 km (0.038 R)
• M22: 17,361,282 km (0.068 R)
• M23: 18,861,000 km (0.102 R)
• M24: 20,093,687 km (0.047 R)
• M25: 20,516,151 km (0.109 R)
• M26: 26,310,675 km (0.102 R)
• M27: 29,715,672 km (0.104 R)
• M28: 31,006,552 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.3

Radius: 6.4

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 9.22 AU - 9.24 AU

Year: 19019 Days

Day: 18.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,673,144 km

• M1: 80,184 km (0.065 R)
• M2: 361,877 km (0.078 R)
• M3: 1,247,796 km (0.12 R)
• M4: 1,832,275 km (0.076 R)
• M5: 2,320,113 km (0.067 R)
• M6: 2,624,395 km (0.058 R)
• M7: 2,933,614 km (0.079 R)
• M8: 4,009,223 km (0.097 R)
• M9: 4,534,311 km (0.096 R)
• M10: 6,277,725 km (0.081 R)
• M11: 10,102,195 km (0.086 R)
• M12: 11,605,952 km (0.118 R)
• M13: 12,157,370 km (0.119 R)
• M14: 17,284,987 km (0.042 R)
• M15: 18,003,805 km (0.079 R)
• M16: 24,847,458 km (0.116 R)
• M17: 25,855,150 km (0.091 R)
• M18: 28,941,204 km (0.111 R)
• M19: 44,406,183 km (0.086 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 18,339 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit