🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.3

Radius: 9.8

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.59 AU - 1.97 AU

Year: 1510 Days

Day: 5.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,571,747 km

• M1: 121,922 km (0.09 R)
• M2: 429,944 km (0.059 R)
• M3: 887,115 km (0.09 R)
• M4: 1,275,621 km (0.084 R)
• M5: 1,703,621 km (0.065 R)
• M6: 2,054,577 km (0.108 R)
• M7: 2,489,757 km (0.101 R)
• M8: 2,852,383 km (0.117 R)
• M9: 3,410,981 km (0.104 R)
• M10: 4,141,916 km (0.102 R)
• M11: 4,765,291 km (0.091 R)
• M12: 5,247,893 km (0.071 R)
• M13: 5,720,473 km (0.048 R)
• M14: 6,356,563 km (0.058 R)
• M15: 6,727,267 km (0.054 R)
• M16: 7,979,999 km (0.089 R)
• M17: 9,650,708 km (0.082 R)
• M18: 10,520,171 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.6

Radius: 8.6

Gravity: 10.93 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.94 AU - 2.22 AU

Year: 1907 Days

Day: 8 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,571,747 km

• M1: 110,254 km (0.113 R)
• M2: 386,710 km (0.051 R)
• M3: 859,440 km (0.088 R)
• M4: 1,174,343 km (0.104 R)
• M5: 1,667,717 km (0.11 R)
• M6: 2,332,380 km (0.095 R)
• M7: 3,837,036 km (0.102 R)
• M8: 4,666,107 km (0.117 R)
• M9: 5,100,839 km (0.102 R)
• M10: 5,514,776 km (0.108 R)
• M11: 6,810,892 km (0.112 R)
• M12: 7,227,971 km (0.112 R)
• M13: 8,174,925 km (0.118 R)
• M14: 8,518,851 km (0.065 R)
• M15: 9,404,321 km (0.079 R)
• M16: 9,712,642 km (0.068 R)
• M17: 11,944,193 km (0.086 R)
• M18: 16,536,549 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.6

Radius: 8.2

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.68 AU - 2.52 AU

Year: 1935 Days

Day: 5.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,571,747 km

• M1: 102,026 km (0.103 R)
• M2: 475,123 km (0.084 R)
• M3: 889,808 km (0.08 R)
• M4: 2,013,887 km (0.101 R)
• M5: 2,563,659 km (0.096 R)
• M6: 4,367,061 km (0.089 R)
• M7: 4,781,447 km (0.073 R)
• M8: 5,051,023 km (0.094 R)
• M9: 5,968,357 km (0.034 R)
• M10: 6,940,144 km (0.116 R)
• M11: 8,100,575 km (0.11 R)
• M12: 8,484,742 km (0.106 R)
• M13: 11,122,003 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.2

Radius: 12.2

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.61 AU - 2.59 AU

Year: 1935 Days

Day: 7.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,571,747 km

• M1: 151,692 km (0.111 R)
• M2: 578,345 km (0.11 R)
• M3: 1,279,361 km (0.09 R)
• M4: 1,721,124 km (0.11 R)
• M5: 2,593,129 km (0.091 R)
• M6: 3,075,283 km (0.057 R)
• M7: 3,599,624 km (0.062 R)
• M8: 4,183,355 km (0.049 R)
• M9: 4,979,365 km (0.06 R)
• M10: 6,020,566 km (0.107 R)
• M11: 6,953,758 km (0.045 R)
• M12: 7,773,704 km (0.11 R)
• M13: 8,976,770 km (0.111 R)
• M14: 9,708,154 km (0.047 R)
• M15: 10,514,786 km (0.105 R)
• M16: 10,916,157 km (0.119 R)
• M17: 12,912,540 km (0.097 R)
• M18: 15,234,150 km (0.113 R)
• M19: 15,654,370 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.6

Radius: 13.7

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.59 AU - 2.63 AU

Year: 2681 Days

Day: 10.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,571,747 km

• M1: 170,392 km (0.109 R)
• M2: 625,170 km (0.105 R)
• M3: 1,699,881 km (0.11 R)
• M4: 2,798,079 km (0.108 R)
• M5: 3,284,571 km (0.119 R)
• M6: 3,751,765 km (0.046 R)
• M7: 4,558,397 km (0.097 R)
• M8: 5,675,893 km (0.086 R)
• M9: 6,219,232 km (0.094 R)
• M10: 7,084,806 km (0.086 R)
• M11: 8,715,572 km (0.114 R)
• M12: 9,299,452 km (0.106 R)
• M13: 10,318,364 km (0.096 R)
• M14: 12,278,844 km (0.12 R)
• M15: 13,869,817 km (0.068 R)
• M16: 15,794,394 km (0.088 R)
• M17: 16,456,514 km (0.049 R)
• M18: 17,137,334 km (0.042 R)
• M19: 17,836,704 km (0.07 R)
• M20: 18,667,271 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.8

Radius: 8.2

Gravity: 12.59 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.97 AU - 2.99 AU

Year: 3271 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,571,747 km

• M1: 102,026 km (0.051 R)
• M2: 429,795 km (0.065 R)
• M3: 975,977 km (0.112 R)
• M4: 1,246,150 km (0.103 R)
• M5: 1,635,254 km (0.069 R)
• M6: 2,022,114 km (0.087 R)
• M7: 2,808,401 km (0.092 R)
• M8: 3,123,753 km (0.08 R)
• M9: 3,952,675 km (0.03 R)
• M10: 4,488,235 km (0.104 R)
• M11: 6,417,599 km (0.103 R)
• M12: 7,648,042 km (0.118 R)
• M13: 9,103,629 km (0.086 R)
• M14: 9,916,843 km (0.118 R)
• M15: 12,137,922 km (0.076 R)
• M16: 13,412,945 km (0.102 R)
• M17: 13,708,102 km (0.12 R)
• M18: 14,984,471 km (0.086 R)
• M19: 15,355,623 km (0.085 R)
• M20: 17,188,646 km (0.07 R)
• M21: 23,202,031 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.5

Radius: 10.6

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.23 AU - 5.05 AU

Year: 5356 Days

Day: 9.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,571,747 km

• M1: 134,638 km (0.089 R)
• M2: 525,837 km (0.11 R)
• M3: 1,109,867 km (0.12 R)
• M4: 1,442,123 km (0.027 R)
• M5: 1,774,380 km (0.038 R)
• M6: 2,303,358 km (0.096 R)
• M7: 2,702,486 km (0.077 R)
• M8: 4,394,138 km (0.118 R)
• M9: 5,866,480 km (0.115 R)
• M10: 6,478,485 km (0.094 R)
• M11: 7,044,713 km (0.112 R)
• M12: 7,551,850 km (0.038 R)
• M13: 8,051,208 km (0.065 R)
• M14: 9,574,713 km (0.114 R)
• M15: 10,011,538 km (0.089 R)
• M16: 10,964,626 km (0.12 R)
• M17: 11,524,122 km (0.092 R)
• M18: 12,657,027 km (0.059 R)
• M19: 16,294,649 km (0.046 R)
• M20: 18,771,840 km (0.034 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.8

Radius: 14.6

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.38 AU - 5.1 AU

Year: 5551 Days

Day: 9.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,571,747 km

• M1: 181,612 km (0.118 R)
• M2: 873,951 km (0.069 R)
• M3: 1,337,255 km (0.119 R)
• M4: 1,891,665 km (0.095 R)
• M5: 2,927,032 km (0.118 R)
• M6: 3,562,673 km (0.086 R)
• M7: 5,008,836 km (0.113 R)
• M8: 7,013,447 km (0.102 R)
• M9: 7,485,279 km (0.112 R)
• M10: 9,306,783 km (0.069 R)
• M11: 9,961,124 km (0.062 R)
• M12: 10,822,359 km (0.118 R)
• M13: 12,206,588 km (0.119 R)
• M14: 14,936,450 km (0.087 R)
• M15: 19,462,833 km (0.034 R)
• M16: 21,505,143 km (0.082 R)
• M17: 24,753,960 km (0.102 R)
• M18: 26,495,279 km (0.07 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 18,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit