🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.66 AU - 0.68 AU

Year: 349 Days

Day: 20.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.8

Radius: 11.4

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.99 AU - 1.49 AU

Year: 878 Days

Day: 8.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,642,491 km

• M1: 141,819 km (0.063 R)
• M2: 968,945 km (0.113 R)
• M3: 1,422,377 km (0.102 R)
• M4: 1,984,117 km (0.116 R)
• M5: 2,391,322 km (0.113 R)
• M6: 3,014,547 km (0.116 R)
• M7: 3,569,106 km (0.089 R)
• M8: 3,949,683 km (0.047 R)
• M9: 5,162,473 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.2

Radius: 12.7

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.39 AU - 1.41 AU

Year: 1053 Days

Day: 11.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,642,491 km

• M1: 159,621 km (0.068 R)
• M2: 764,595 km (0.112 R)
• M3: 1,530,087 km (0.104 R)
• M4: 2,166,327 km (0.081 R)
• M5: 2,681,093 km (0.045 R)
• M6: 3,162,349 km (0.113 R)
• M7: 3,576,287 km (0.119 R)
• M8: 4,872,552 km (0.109 R)
• M9: 5,494,281 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.8

Radius: 8.7

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.28 AU - 1.74 AU

Year: 1180 Days

Day: 14.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,642,491 km

• M1: 113,545 km (0.079 R)
• M2: 427,551 km (0.058 R)
• M3: 795,412 km (0.102 R)
• M4: 1,085,781 km (0.104 R)
• M5: 1,372,860 km (0.088 R)
• M6: 2,094,221 km (0.118 R)
• M7: 2,610,483 km (0.113 R)
• M8: 3,135,272 km (0.093 R)
• M9: 3,501,937 km (0.117 R)
• M10: 3,896,875 km (0.12 R)
• M11: 4,376,635 km (0.113 R)
• M12: 5,097,398 km (0.035 R)
• M13: 5,390,011 km (0.092 R)
• M14: 5,850,025 km (0.042 R)
• M15: 6,383,640 km (0.071 R)
• M16: 6,724,125 km (0.06 R)
• M17: 7,102,309 km (0.12 R)
• M18: 8,466,641 km (0.055 R)
• M19: 10,324,796 km (0.052 R)
• M20: 10,625,189 km (0.045 R)
• M21: 11,104,201 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.8

Radius: 13.7

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.43 AU - 1.79 AU

Year: 1299 Days

Day: 5.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,642,491 km

• M1: 174,431 km (0.044 R)
• M2: 704,606 km (0.081 R)
• M3: 1,154,896 km (0.097 R)
• M4: 1,757,625 km (0.117 R)
• M5: 2,528,952 km (0.073 R)
• M6: 2,980,139 km (0.042 R)
• M7: 3,485,331 km (0.108 R)
• M8: 3,927,243 km (0.113 R)
• M9: 5,189,251 km (0.111 R)
• M10: 5,702,222 km (0.084 R)
• M11: 7,448,029 km (0.094 R)
• M12: 7,963,244 km (0.117 R)
• M13: 8,589,461 km (0.109 R)
• M14: 9,908,465 km (0.074 R)
• M15: 10,905,834 km (0.115 R)
• M16: 12,079,280 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.8

Radius: 14.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.33 AU - 2.77 AU

Year: 2589 Days

Day: 6.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,642,491 km

• M1: 181,612 km (0.092 R)
• M2: 642,822 km (0.113 R)
• M3: 1,379,442 km (0.028 R)
• M4: 1,901,239 km (0.097 R)
• M5: 2,453,555 km (0.11 R)
• M6: 3,280,083 km (0.103 R)
• M7: 4,230,329 km (0.111 R)
• M8: 6,229,854 km (0.095 R)
• M9: 8,676,228 km (0.11 R)
• M10: 9,521,156 km (0.065 R)
• M11: 11,706,632 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.8

Radius: 7.2

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 7.07 AU - 8.87 AU

Year: 14306 Days

Day: 16.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 105.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,642,491 km

• M1: 91,554 km (0.109 R)
• M2: 561,740 km (0.091 R)
• M3: 882,478 km (0.111 R)
• M4: 1,580,053 km (0.107 R)
• M5: 2,071,781 km (0.073 R)
• M6: 2,787,158 km (0.119 R)
• M7: 3,308,806 km (0.109 R)
• M8: 3,708,681 km (0.112 R)
• M9: 3,974,666 km (0.108 R)
• M10: 4,456,221 km (0.062 R)
• M11: 6,858,015 km (0.112 R)
• M12: 8,199,758 km (0.093 R)
• M13: 10,163,530 km (0.113 R)
• M14: 11,226,871 km (0.12 R)
• M15: 11,728,772 km (0.097 R)
• M16: 12,129,395 km (0.097 R)
• M17: 14,400,740 km (0.034 R)
• M18: 18,278,466 km (0.074 R)
• M19: 20,332,894 km (0.091 R)
• M20: 23,877,316 km (0.066 R)
• M21: 26,521,608 km (0.1 R)
• M22: 28,525,771 km (0.117 R)
• M23: 31,828,443 km (0.065 R)
• M24: 32,607,848 km (0.088 R)
• M25: 34,321,043 km (0.055 R)
• M26: 36,213,605 km (0.035 R)
• M27: 40,334,727 km (0.071 R)
• M28: 42,040,592 km (0.073 R)
• M29: 43,657,446 km (0.092 R)
• M30: 44,205,423 km (0.061 R)
• M31: 47,014,572 km (0.11 R)
• M32: 48,170,664 km (0.07 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 11,691 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit