🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.48 AU - 0.56 AU

Year: 238 Days

Day: 42.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.61 AU - 0.67 AU

Year: 326 Days

Day: 41.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.7

Radius: 13.1

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.78 AU - 1.14 AU

Year: 598 Days

Day: 13.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,951,254 km

• M1: 162,912 km (0.09 R)
• M2: 626,217 km (0.084 R)
• M3: 1,256,921 km (0.12 R)
• M4: 1,815,969 km (0.103 R)
• M5: 2,344,199 km (0.098 R)
• M6: 2,801,071 km (0.105 R)
• M7: 3,292,350 km (0.088 R)
• M8: 3,729,475 km (0.106 R)
• M9: 4,372,895 km (0.083 R)
• M10: 5,004,198 km (0.069 R)
• M11: 5,920,934 km (0.069 R)
• M12: 6,369,728 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.9

Radius: 14.5

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.58 AU - 1.62 AU

Year: 1287 Days

Day: 11.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,951,254 km

• M1: 180,415 km (0.097 R)
• M2: 635,342 km (0.108 R)
• M3: 1,219,971 km (0.081 R)
• M4: 2,016,878 km (0.104 R)
• M5: 2,750,806 km (0.097 R)
• M6: 3,381,809 km (0.12 R)
• M7: 3,962,848 km (0.066 R)
• M8: 4,906,960 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.6

Radius: 12.9

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.29 AU - 2.01 AU

Year: 1348 Days

Day: 7.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,951,254 km

• M1: 160,519 km (0.099 R)
• M2: 739,313 km (0.097 R)
• M3: 1,336,807 km (0.089 R)
• M4: 1,965,118 km (0.09 R)
• M5: 2,636,064 km (0.076 R)
• M6: 3,375,826 km (0.048 R)
• M7: 4,049,614 km (0.071 R)
• M8: 4,913,243 km (0.111 R)
• M9: 6,901,698 km (0.078 R)
• M10: 8,104,764 km (0.111 R)
• M11: 9,252,479 km (0.112 R)
• M12: 10,678,595 km (0.11 R)
• M13: 11,499,289 km (0.075 R)
• M14: 12,056,840 km (0.058 R)
• M15: 13,347,122 km (0.119 R)
• M16: 14,130,716 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.6

Radius: 12.9

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.11 AU - 3.29 AU

Year: 2821 Days

Day: 10.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,951,254 km

• M1: 164,408 km (0.101 R)
• M2: 638,185 km (0.099 R)
• M3: 1,059,901 km (0.091 R)
• M4: 1,517,670 km (0.082 R)
• M5: 2,135,360 km (0.078 R)
• M6: 2,601,357 km (0.099 R)
• M7: 3,135,571 km (0.107 R)
• M8: 3,961,651 km (0.093 R)
• M9: 4,810,768 km (0.051 R)
• M10: 5,316,260 km (0.116 R)
• M11: 5,830,727 km (0.06 R)
• M12: 6,520,373 km (0.098 R)
• M13: 7,019,880 km (0.102 R)
• M14: 8,674,133 km (0.113 R)
• M15: 9,723,562 km (0.104 R)
• M16: 11,601,913 km (0.118 R)
• M17: 13,901,981 km (0.095 R)
• M18: 16,599,081 km (0.092 R)
• M19: 18,970,955 km (0.115 R)
• M20: 19,870,337 km (0.104 R)
• M21: 21,176,925 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.4

Radius: 11.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.79 AU - 5.03 AU

Year: 5888 Days

Day: 8.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,951,254 km

• M1: 140,772 km (0.1 R)
• M2: 730,786 km (0.084 R)
• M3: 1,112,410 km (0.077 R)
• M4: 2,204,175 km (0.116 R)
• M5: 2,571,139 km (0.098 R)
• M6: 9,640,984 km (0.053 R)
• M7: 10,763,268 km (0.116 R)
• M8: 11,423,443 km (0.087 R)
• M9: 11,924,446 km (0.077 R)
• M10: 14,076,860 km (0.079 R)
• M11: 17,834,161 km (0.066 R)
• M12: 18,947,468 km (0.085 R)
• M13: 21,655,489 km (0.098 R)
• M14: 25,448,393 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.7

Radius: 3.5

Gravity: 67.08 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 6.15 AU - 6.89 AU

Year: 10585 Days

Day: 16 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 49,951,254 km

• M1: 49,816 km (0.117 R)
• M2: 179,368 km (0.109 R)
• M3: 346,618 km (0.051 R)
• M4: 498,909 km (0.114 R)
• M5: 695,032 km (0.076 R)
• M6: 1,572,872 km (0.11 R)
• M7: 1,874,761 km (0.091 R)
• M8: 2,677,652 km (0.105 R)
• M9: 2,853,131 km (0.094 R)
• M10: 4,015,656 km (0.098 R)
• M11: 4,394,138 km (0.074 R)
• M12: 5,022,300 km (0.086 R)
• M13: 5,925,422 km (0.107 R)
• M14: 6,148,323 km (0.089 R)
• M15: 6,415,355 km (0.101 R)
• M16: 7,096,175 km (0.086 R)
• M17: 8,046,869 km (0.068 R)
• M18: 9,526,093 km (0.098 R)
• M19: 9,883,483 km (0.118 R)
• M20: 10,144,232 km (0.089 R)
• M21: 10,302,955 km (0.086 R)
• M22: 10,734,096 km (0.029 R)
• M23: 11,289,852 km (0.083 R)
• M24: 12,762,643 km (0.085 R)
• M25: 20,352,641 km (0.103 R)
• M26: 28,973,368 km (0.079 R)
• M27: 30,374,800 km (0.05 R)
• M28: 30,704,365 km (0.107 R)
• M29: 31,483,021 km (0.088 R)
• M30: 32,617,871 km (0.083 R)
• M31: 33,545,228 km (0.114 R)
• M32: 33,662,363 km (0.062 R)
• M33: 45,790,861 km (0.046 R)
• M34: 46,952,638 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386

Radius: 3.4

Gravity: 33.39 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.33 AU - 8.51 AU

Year: 14172 Days

Day: 22.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 49,951,254 km

• M1: 73,004 km (0.09 R)
• M2: 287,527 km (0.04 R)
• M3: 435,629 km (0.113 R)
• M4: 595,699 km (0.101 R)
• M5: 1,126,173 km (0.054 R)
• M6: 1,803,402 km (0.074 R)
• M7: 2,109,629 km (0.104 R)
• M8: 2,737,940 km (0.115 R)
• M9: 3,188,828 km (0.075 R)
• M10: 3,382,408 km (0.079 R)
• M11: 3,609,497 km (0.087 R)
• M12: 4,900,228 km (0.049 R)
• M13: 5,125,373 km (0.105 R)
• M14: 6,899,155 km (0.104 R)
• M15: 7,019,431 km (0.107 R)
• M16: 8,391,244 km (0.06 R)
• M17: 9,481,064 km (0.088 R)
• M18: 12,285,725 km (0.05 R)
• M19: 13,622,382 km (0.097 R)
• M20: 14,719,533 km (0.091 R)
• M21: 15,187,924 km (0.116 R)
• M22: 17,014,813 km (0.075 R)
• M23: 20,929,640 km (0.107 R)
• M24: 22,386,424 km (0.097 R)
• M25: 24,742,889 km (0.076 R)
• M26: 28,168,980 km (0.117 R)
• M27: 29,623,520 km (0.119 R)
• M28: 31,127,427 km (0.113 R)
• M29: 36,668,981 km (0.093 R)
• M30: 40,446,477 km (0.114 R)
• M31: 42,833,012 km (0.098 R)
• M32: 43,512,186 km (0.118 R)
• M33: 45,031,652 km (0.11 R)
• M34: 46,300,840 km (0.104 R)
• M35: 48,030,042 km (0.082 R)
• M36: 49,058,228 km (0.082 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 17,051 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit