🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.7

Radius: 10.3

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.7 AU - 1 AU

Year: 506 Days

Day: 5.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,673,430 km

• M1: 130,300 km (0.101 R)
• M2: 520,750 km (0.058 R)
• M3: 921,672 km (0.034 R)
• M4: 1,693,149 km (0.068 R)
• M5: 2,118,007 km (0.086 R)
• M6: 2,551,242 km (0.097 R)
• M7: 2,906,238 km (0.109 R)
• M8: 3,257,494 km (0.061 R)
• M9: 3,729,924 km (0.074 R)
• M10: 4,074,747 km (0.067 R)
• M11: 4,531,918 km (0.054 R)
• M12: 5,039,653 km (0.117 R)
• M13: 5,462,267 km (0.06 R)
• M14: 6,613,722 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.2

Radius: 11.7

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.7 AU - 1.14 AU

Year: 570 Days

Day: 12.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,673,430 km

• M1: 145,559 km (0.07 R)
• M2: 560,094 km (0.074 R)
• M3: 963,410 km (0.107 R)
• M4: 2,251,747 km (0.103 R)
• M5: 3,091,290 km (0.033 R)
• M6: 4,088,061 km (0.075 R)
• M7: 4,464,300 km (0.083 R)
• M8: 5,080,493 km (0.037 R)
• M9: 5,566,537 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.1

Radius: 14.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.99 AU - 1.13 AU

Year: 705 Days

Day: 9.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,673,430 km

• M1: 188,942 km (0.058 R)
• M2: 658,380 km (0.079 R)
• M3: 1,487,751 km (0.102 R)
• M4: 2,095,268 km (0.084 R)
• M5: 3,285,917 km (0.106 R)
• M6: 3,757,151 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.2

Radius: 13.7

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.61 AU - 2.29 AU

Year: 1758 Days

Day: 5 Hours

Environment

Temp: -180 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,673,430 km

• M1: 181,612 km (0.043 R)
• M2: 1,108,371 km (0.1 R)
• M3: 1,550,432 km (0.025 R)
• M4: 2,470,908 km (0.11 R)
• M5: 3,092,637 km (0.106 R)
• M6: 3,906,748 km (0.09 R)
• M7: 4,572,609 km (0.086 R)
• M8: 5,202,565 km (0.101 R)
• M9: 5,654,201 km (0.072 R)
• M10: 7,252,355 km (0.046 R)
• M11: 7,876,029 km (0.074 R)
• M12: 8,752,672 km (0.044 R)
• M13: 9,659,983 km (0.087 R)
• M14: 10,917,503 km (0.048 R)
• M15: 12,085,414 km (0.05 R)
• M16: 12,760,549 km (0.068 R)
• M17: 13,628,964 km (0.08 R)
• M18: 14,186,067 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.5

Radius: 9.2

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.8 AU - 2.16 AU

Year: 1799 Days

Day: 8.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,673,430 km

• M1: 114,442 km (0.04 R)
• M2: 502,948 km (0.065 R)
• M3: 1,153,998 km (0.119 R)
• M4: 2,171,862 km (0.11 R)
• M5: 3,658,266 km (0.104 R)
• M6: 4,241,997 km (0.103 R)
• M7: 5,205,408 km (0.086 R)
• M8: 7,653,128 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.1

Radius: 8.1

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.31 AU - 2.61 AU

Year: 2491 Days

Day: 14.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,673,430 km

• M1: 102,475 km (0.112 R)
• M2: 608,564 km (0.089 R)
• M3: 1,323,044 km (0.069 R)
• M4: 1,909,766 km (0.068 R)
• M5: 2,380,701 km (0.079 R)
• M6: 2,767,411 km (0.111 R)
• M7: 3,161,003 km (0.061 R)
• M8: 3,462,144 km (0.115 R)
• M9: 4,020,293 km (0.113 R)
• M10: 4,460,709 km (0.113 R)
• M11: 5,193,739 km (0.085 R)
• M12: 5,716,733 km (0.081 R)
• M13: 6,955,553 km (0.039 R)
• M14: 7,653,726 km (0.092 R)
• M15: 10,333,024 km (0.108 R)
• M16: 11,241,083 km (0.119 R)
• M17: 12,244,436 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.7

Radius: 12.1

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.1 AU - 4.22 AU

Year: 4521 Days

Day: 13.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,673,430 km

• M1: 151,692 km (0.064 R)
• M2: 571,165 km (0.114 R)
• M3: 1,331,271 km (0.107 R)
• M4: 2,597,617 km (0.041 R)
• M5: 3,128,690 km (0.118 R)
• M6: 5,451,197 km (0.095 R)
• M7: 6,589,487 km (0.084 R)
• M8: 8,745,791 km (0.079 R)
• M9: 14,351,821 km (0.114 R)
• M10: 15,065,254 km (0.073 R)
• M11: 16,507,676 km (0.117 R)
• M12: 18,571,528 km (0.104 R)
• M13: 19,977,000 km (0.103 R)
• M14: 21,715,926 km (0.08 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.5

Radius: 13.6

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.68 AU - 4.78 AU

Year: 6642 Days

Day: 6.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,673,430 km

• M1: 169,195 km (0.12 R)
• M2: 1,328,429 km (0.064 R)
• M3: 2,282,116 km (0.116 R)
• M4: 3,399,462 km (0.047 R)
• M5: 3,943,400 km (0.117 R)
• M6: 7,281,527 km (0.107 R)
• M7: 8,398,424 km (0.064 R)
• M8: 8,824,030 km (0.06 R)
• M9: 9,353,756 km (0.107 R)
• M10: 10,722,278 km (0.088 R)
• M11: 14,631,719 km (0.093 R)
• M12: 16,014,153 km (0.083 R)
• M13: 18,965,270 km (0.103 R)
• M14: 20,684,299 km (0.108 R)
• M15: 23,580,364 km (0.119 R)
• M16: 25,301,039 km (0.065 R)
• M17: 27,848,840 km (0.057 R)
• M18: 28,321,270 km (0.109 R)
• M19: 29,672,289 km (0.066 R)
• M20: 30,763,605 km (0.083 R)
• M21: 37,079,029 km (0.11 R)
• M22: 38,345,076 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211.4

Radius: 6.7

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.56 AU - 8.66 AU

Year: 13555 Days

Day: 21.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,673,430 km

• M1: 83,775 km (0.066 R)
• M2: 368,011 km (0.1 R)
• M3: 610,359 km (0.103 R)
• M4: 933,940 km (0.052 R)
• M5: 2,378,008 km (0.084 R)
• M6: 3,619,371 km (0.109 R)
• M7: 4,741,056 km (0.079 R)
• M8: 5,182,070 km (0.07 R)
• M9: 6,145,780 km (0.046 R)
• M10: 7,968,779 km (0.054 R)
• M11: 8,339,034 km (0.11 R)
• M12: 9,427,807 km (0.084 R)
• M13: 14,921,939 km (0.085 R)
• M14: 16,652,188 km (0.119 R)
• M15: 17,600,040 km (0.066 R)
• M16: 18,870,874 km (0.12 R)
• M17: 25,089,508 km (0.031 R)
• M18: 26,333,713 km (0.114 R)
• M19: 27,805,457 km (0.074 R)
• M20: 31,417,049 km (0.094 R)
• M21: 33,493,766 km (0.059 R)
• M22: 34,134,195 km (0.107 R)
• M23: 34,457,476 km (0.044 R)
• M24: 35,770,945 km (0.084 R)
• M25: 37,918,423 km (0.07 R)
• M26: 38,149,402 km (0.087 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: 323 - 16,812 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit