🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.52 AU - 0.62 AU

Year: 282 Days

Day: 41.1 Hours

Environment

Temp: -116 °C

Axial Tilt: 102.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.1

Radius: 8.7

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.63 AU - 0.77 AU

Year: 384 Days

Day: 6.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,324,728 km

• M1: 108,309 km (0.054 R)
• M2: 387,159 km (0.058 R)
• M3: 741,257 km (0.049 R)
• M4: 1,182,422 km (0.094 R)
• M5: 1,719,777 km (0.11 R)
• M6: 2,135,061 km (0.107 R)
• M7: 2,781,922 km (0.036 R)
• M8: 3,807,415 km (0.114 R)
• M9: 4,338,189 km (0.082 R)
• M10: 4,614,646 km (0.097 R)
• M11: 5,006,442 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.9

Radius: 11.4

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.77 AU - 0.87 AU

Year: 487 Days

Day: 8.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,324,728 km

• M1: 141,819 km (0.065 R)
• M2: 744,997 km (0.039 R)
• M3: 1,128,566 km (0.094 R)
• M4: 1,550,133 km (0.102 R)
• M5: 2,148,973 km (0.079 R)
• M6: 2,779,229 km (0.04 R)
• M7: 3,657,070 km (0.062 R)
• M8: 4,264,437 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.2

Radius: 10

Gravity: 9.82 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.89 AU - 2.81 AU

Year: 2363 Days

Day: 14.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,324,728 km

• M1: 124,316 km (0.072 R)
• M2: 437,574 km (0.078 R)
• M3: 816,356 km (0.063 R)
• M4: 1,216,081 km (0.092 R)
• M5: 1,757,177 km (0.089 R)
• M6: 2,496,340 km (0.117 R)
• M7: 2,896,813 km (0.106 R)
• M8: 3,485,481 km (0.049 R)
• M9: 4,090,006 km (0.113 R)
• M10: 4,604,772 km (0.093 R)
• M11: 5,210,643 km (0.116 R)
• M12: 5,738,126 km (0.073 R)
• M13: 6,136,505 km (0.084 R)
• M14: 7,599,422 km (0.072 R)
• M15: 8,080,529 km (0.099 R)
• M16: 8,547,723 km (0.09 R)
• M17: 8,927,403 km (0.086 R)
• M18: 10,917,353 km (0.1 R)
• M19: 11,241,532 km (0.03 R)
• M20: 14,797,922 km (0.089 R)
• M21: 15,908,088 km (0.115 R)
• M22: 17,787,336 km (0.102 R)
• M23: 19,571,590 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.6

Radius: 10.9

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.33 AU - 5.41 AU

Year: 7050 Days

Day: 10.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,324,728 km

• M1: 135,685 km (0.062 R)
• M2: 492,925 km (0.102 R)
• M3: 979,567 km (0.098 R)
• M4: 1,461,272 km (0.085 R)
• M5: 1,838,109 km (0.084 R)
• M6: 2,773,395 km (0.068 R)
• M7: 3,359,220 km (0.039 R)
• M8: 3,876,081 km (0.056 R)
• M9: 4,693,783 km (0.081 R)
• M10: 6,047,344 km (0.115 R)
• M11: 6,670,419 km (0.046 R)
• M12: 7,412,275 km (0.109 R)
• M13: 8,085,466 km (0.08 R)
• M14: 11,294,340 km (0.111 R)
• M15: 12,676,624 km (0.112 R)
• M16: 13,523,797 km (0.042 R)
• M17: 14,528,945 km (0.057 R)
• M18: 14,895,310 km (0.033 R)
• M19: 16,031,805 km (0.084 R)
• M20: 17,293,215 km (0.084 R)
• M21: 18,979,781 km (0.061 R)
• M22: 19,639,657 km (0.113 R)
• M23: 27,012,289 km (0.117 R)
• M24: 29,180,411 km (0.054 R)
• M25: 34,181,468 km (0.116 R)
• M26: 35,487,906 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.8

Radius: 9.1

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.08 AU - 6.24 AU

Year: 8834 Days

Day: 9.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 50,324,728 km

• M1: 116,088 km (0.106 R)
• M2: 663,167 km (0.119 R)
• M3: 1,002,605 km (0.058 R)
• M4: 3,039,530 km (0.095 R)
• M5: 3,800,534 km (0.089 R)
• M6: 4,186,197 km (0.114 R)
• M7: 4,597,741 km (0.029 R)
• M8: 5,127,168 km (0.113 R)
• M9: 5,663,925 km (0.089 R)
• M10: 6,030,889 km (0.107 R)
• M11: 7,228,120 km (0.109 R)
• M12: 7,540,780 km (0.112 R)
• M13: 8,576,745 km (0.12 R)
• M14: 12,143,458 km (0.083 R)
• M15: 12,642,217 km (0.114 R)
• M16: 13,212,634 km (0.102 R)
• M17: 14,713,399 km (0.084 R)
• M18: 16,125,454 km (0.092 R)
• M19: 16,932,534 km (0.117 R)
• M20: 18,265,451 km (0.04 R)
• M21: 19,591,337 km (0.106 R)
• M22: 20,901,366 km (0.118 R)
• M23: 24,039,480 km (0.087 R)
• M24: 24,738,102 km (0.078 R)
• M25: 25,720,512 km (0.091 R)
• M26: 27,384,040 km (0.106 R)
• M27: 27,858,564 km (0.115 R)
• M28: 29,513,117 km (0.055 R)
• M29: 30,314,064 km (0.081 R)
• M30: 31,542,412 km (0.099 R)
• M31: 37,019,190 km (0.08 R)
• M32: 40,592,335 km (0.09 R)
• M33: 41,707,438 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160.1

Radius: 6.8

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.91 AU - 8.17 AU

Year: 12254 Days

Day: 22.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,324,728 km

• M1: 84,523 km (0.099 R)
• M2: 479,012 km (0.066 R)
• M3: 1,398,441 km (0.095 R)
• M4: 2,601,058 km (0.102 R)
• M5: 3,096,676 km (0.114 R)
• M6: 3,563,720 km (0.076 R)
• M7: 5,220,068 km (0.079 R)
• M8: 5,665,122 km (0.043 R)
• M9: 6,135,158 km (0.099 R)
• M10: 7,552,897 km (0.072 R)
• M11: 12,155,276 km (0.102 R)
• M12: 13,258,410 km (0.027 R)
• M13: 14,483,916 km (0.115 R)
• M14: 16,150,736 km (0.078 R)
• M15: 20,723,195 km (0.106 R)
• M16: 25,415,481 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.5

Radius: 4.1

Gravity: 24 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 6.58 AU - 8.82 AU

Year: 14017 Days

Day: 21.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 50,324,728 km

• M1: 51,013 km (0.116 R)
• M2: 180,265 km (0.083 R)
• M3: 390,450 km (0.076 R)
• M4: 799,451 km (0.112 R)
• M5: 1,166,415 km (0.063 R)
• M6: 1,463,366 km (0.12 R)
• M7: 2,702,186 km (0.089 R)
• M8: 3,490,567 km (0.116 R)
• M9: 6,222,823 km (0.066 R)
• M10: 8,144,557 km (0.118 R)
• M11: 8,415,329 km (0.102 R)
• M12: 8,645,411 km (0.072 R)
• M13: 9,708,603 km (0.044 R)
• M14: 10,587,640 km (0.083 R)
• M15: 11,128,735 km (0.113 R)
• M16: 11,745,078 km (0.052 R)
• M17: 11,917,116 km (0.109 R)
• M18: 13,229,987 km (0.052 R)
• M19: 13,921,279 km (0.089 R)
• M20: 16,068,756 km (0.11 R)
• M21: 16,638,275 km (0.08 R)
• M22: 17,667,060 km (0.069 R)
• M23: 18,504,509 km (0.064 R)
• M24: 18,659,642 km (0.094 R)
• M25: 21,515,764 km (0.107 R)
• M26: 22,913,307 km (0.087 R)
• M27: 24,000,435 km (0.087 R)
• M28: 25,216,367 km (0.085 R)
• M29: 29,319,537 km (0.098 R)
• M30: 30,276,215 km (0.027 R)
• M31: 32,928,586 km (0.048 R)
• M32: 37,191,377 km (0.05 R)
• M33: 48,536,431 km (0.104 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: 365 - 19,278 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit