🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.3

Radius: 9.3

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.53 AU - 0.69 AU

Year: 335 Days

Day: 7.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,957,778 km

• M1: 116,088 km (0.107 R)
• M2: 448,345 km (0.045 R)
• M3: 943,663 km (0.114 R)
• M4: 1,283,849 km (0.116 R)
• M5: 2,148,225 km (0.03 R)
• M6: 2,939,598 km (0.098 R)
• M7: 3,818,934 km (0.056 R)
• M8: 4,332,803 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.3

Radius: 14.9

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.71 AU - 1.03 AU

Year: 570 Days

Day: 11.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,957,778 km

• M1: 185,352 km (0.091 R)
• M2: 1,103,284 km (0.116 R)
• M3: 2,874,373 km (0.112 R)
• M4: 3,377,471 km (0.081 R)
• M5: 3,967,784 km (0.087 R)
• M6: 4,595,497 km (0.09 R)
• M7: 5,375,949 km (0.043 R)
• M8: 6,243,467 km (0.095 R)
• M9: 6,948,821 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.1

Radius: 14.5

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.77 AU - 0.99 AU

Year: 580 Days

Day: 8.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,957,778 km

• M1: 180,265 km (0.071 R)
• M2: 870,959 km (0.059 R)
• M3: 1,327,831 km (0.119 R)
• M4: 1,827,488 km (0.106 R)
• M5: 2,501,725 km (0.11 R)
• M6: 3,121,509 km (0.117 R)
• M7: 3,640,165 km (0.096 R)
• M8: 4,383,966 km (0.062 R)
• M9: 5,227,548 km (0.078 R)
• M10: 5,964,168 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.9

Radius: 14

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.58 AU - 1.88 AU

Year: 1599 Days

Day: 13.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,957,778 km

• M1: 174,282 km (0.086 R)
• M2: 609,911 km (0.078 R)
• M3: 1,212,042 km (0.099 R)
• M4: 1,747,902 km (0.107 R)
• M5: 2,299,020 km (0.096 R)
• M6: 3,036,538 km (0.093 R)
• M7: 3,709,878 km (0.062 R)
• M8: 4,388,603 km (0.07 R)
• M9: 4,986,247 km (0.059 R)
• M10: 5,507,296 km (0.057 R)
• M11: 5,973,144 km (0.104 R)
• M12: 6,783,366 km (0.091 R)
• M13: 7,346,003 km (0.079 R)
• M14: 7,967,283 km (0.108 R)
• M15: 9,101,086 km (0.118 R)
• M16: 10,339,906 km (0.09 R)
• M17: 11,226,423 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.9

Radius: 10.9

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.52 AU - 2.22 AU

Year: 1798 Days

Day: 9.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,957,778 km

• M1: 135,536 km (0.105 R)
• M2: 482,304 km (0.119 R)
• M3: 867,368 km (0.088 R)
• M4: 1,362,986 km (0.113 R)
• M5: 1,737,280 km (0.114 R)
• M6: 2,204,325 km (0.053 R)
• M7: 2,631,875 km (0.102 R)
• M8: 3,160,105 km (0.03 R)
• M9: 3,639,417 km (0.094 R)
• M10: 4,297,049 km (0.05 R)
• M11: 4,644,715 km (0.064 R)
• M12: 6,084,594 km (0.08 R)
• M13: 6,959,293 km (0.063 R)
• M14: 9,431,697 km (0.103 R)
• M15: 10,671,863 km (0.114 R)
• M16: 11,680,303 km (0.113 R)
• M17: 13,514,372 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.5

Radius: 8

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.68 AU - 3.04 AU

Year: 3400 Days

Day: 10 Hours

Environment

Temp: -209 °C

Axial Tilt: 171.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,957,778 km

• M1: 100,081 km (0.074 R)
• M2: 351,256 km (0.068 R)
• M3: 629,807 km (0.076 R)
• M4: 964,757 km (0.111 R)
• M5: 1,407,267 km (0.053 R)
• M6: 1,765,255 km (0.086 R)
• M7: 2,254,290 km (0.089 R)
• M8: 3,906,300 km (0.104 R)
• M9: 5,130,908 km (0.06 R)
• M10: 5,519,713 km (0.108 R)
• M11: 5,817,263 km (0.049 R)
• M12: 6,444,676 km (0.089 R)
• M13: 7,243,379 km (0.119 R)
• M14: 7,534,646 km (0.113 R)
• M15: 8,742,799 km (0.115 R)
• M16: 9,488,544 km (0.113 R)
• M17: 14,518,922 km (0.073 R)
• M18: 16,545,674 km (0.071 R)
• M19: 17,051,913 km (0.108 R)
• M20: 20,565,818 km (0.083 R)
• M21: 21,282,840 km (0.119 R)
• M22: 22,974,044 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276

Radius: 8.1

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.83 AU - 5.53 AU

Year: 7117 Days

Day: 6.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,957,778 km

• M1: 108,159 km (0.102 R)
• M2: 392,096 km (0.115 R)
• M3: 1,490,743 km (0.119 R)
• M4: 1,820,606 km (0.113 R)
• M5: 2,244,118 km (0.094 R)
• M6: 2,749,459 km (0.07 R)
• M7: 3,368,645 km (0.099 R)
• M8: 4,192,929 km (0.099 R)
• M9: 5,530,633 km (0.087 R)
• M10: 6,083,846 km (0.096 R)
• M11: 9,704,414 km (0.08 R)
• M12: 17,430,546 km (0.044 R)
• M13: 19,459,841 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.2

Radius: 8.1

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.42 AU - 6.28 AU

Year: 8698 Days

Day: 11.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 114.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,957,778 km

• M1: 100,679 km (0.106 R)
• M2: 379,081 km (0.093 R)
• M3: 738,265 km (0.047 R)
• M4: 1,068,877 km (0.072 R)
• M5: 1,931,757 km (0.065 R)
• M6: 3,052,245 km (0.096 R)
• M7: 3,613,686 km (0.114 R)
• M8: 4,141,019 km (0.098 R)
• M9: 4,476,118 km (0.095 R)
• M10: 5,530,184 km (0.101 R)
• M11: 5,905,226 km (0.084 R)
• M12: 7,205,980 km (0.118 R)
• M13: 7,615,878 km (0.067 R)
• M14: 9,500,512 km (0.098 R)
• M15: 13,152,495 km (0.103 R)
• M16: 14,572,029 km (0.113 R)
• M17: 17,313,859 km (0.097 R)
• M18: 20,161,903 km (0.109 R)
• M19: 21,201,908 km (0.085 R)
• M20: 23,875,970 km (0.105 R)
• M21: 35,529,195 km (0.057 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 16,723 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit