🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.6 AU - 0.72 AU

Year: 341 Days

Day: 38.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,132,458 km

• M1: 299,495 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.2

Radius: 11.7

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.76 AU - 0.9 AU

Year: 481 Days

Day: 9.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 108 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,132,458 km

• M1: 145,708 km (0.113 R)
• M2: 671,844 km (0.115 R)
• M3: 1,609,374 km (0.119 R)
• M4: 1,974,841 km (0.058 R)
• M5: 2,481,829 km (0.077 R)
• M6: 3,232,511 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.7

Radius: 8

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.56 AU - 2.24 AU

Year: 1665 Days

Day: 11.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 83,132,458 km

• M1: 99,931 km (0.065 R)
• M2: 393,143 km (0.084 R)
• M3: 713,881 km (0.111 R)
• M4: 5,752,637 km (0.04 R)
• M5: 6,908,729 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.3

Radius: 11.9

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.94 AU - 3.86 AU

Year: 3986 Days

Day: 6.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,132,458 km

• M1: 148,999 km (0.079 R)
• M2: 559,646 km (0.09 R)
• M3: 1,060,350 km (0.058 R)
• M4: 2,170,067 km (0.088 R)
• M5: 2,657,756 km (0.087 R)
• M6: 3,713,917 km (0.102 R)
• M7: 4,326,969 km (0.073 R)
• M8: 5,333,762 km (0.09 R)
• M9: 5,892,660 km (0.07 R)
• M10: 6,608,785 km (0.096 R)
• M11: 7,807,513 km (0.055 R)
• M12: 9,870,019 km (0.071 R)
• M13: 11,781,730 km (0.101 R)
• M14: 12,547,073 km (0.101 R)
• M15: 14,939,292 km (0.111 R)
• M16: 15,409,628 km (0.114 R)
• M17: 17,505,494 km (0.115 R)
• M18: 18,442,575 km (0.062 R)
• M19: 21,919,678 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.9

Radius: 12.8

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.14 AU - 3.92 AU

Year: 4217 Days

Day: 6.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 83,132,458 km

• M1: 159,322 km (0.034 R)
• M2: 637,885 km (0.108 R)
• M3: 1,227,451 km (0.051 R)
• M4: 1,692,700 km (0.072 R)
• M5: 2,185,176 km (0.095 R)
• M6: 2,651,173 km (0.117 R)
• M7: 3,362,811 km (0.076 R)
• M8: 5,223,509 km (0.083 R)
• M9: 6,408,474 km (0.07 R)
• M10: 6,863,102 km (0.081 R)
• M11: 8,021,139 km (0.097 R)
• M12: 9,552,871 km (0.083 R)
• M13: 10,948,769 km (0.079 R)
• M14: 11,506,021 km (0.082 R)
• M15: 12,476,612 km (0.057 R)
• M16: 13,606,674 km (0.093 R)
• M17: 14,415,400 km (0.113 R)
• M18: 15,085,300 km (0.113 R)
• M19: 19,081,059 km (0.116 R)
• M20: 20,860,376 km (0.072 R)
• M21: 22,673,053 km (0.08 R)
• M22: 24,984,490 km (0.063 R)
• M23: 25,626,414 km (0.114 R)
• M24: 27,703,880 km (0.087 R)
• M25: 28,478,498 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.3

Radius: 12

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.77 AU - 4.35 AU

Year: 5201 Days

Day: 9 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,132,458 km

• M1: 149,448 km (0.048 R)
• M2: 860,188 km (0.091 R)
• M3: 1,383,182 km (0.096 R)
• M4: 1,973,046 km (0.111 R)
• M5: 2,569,643 km (0.038 R)
• M6: 3,384,353 km (0.116 R)
• M7: 3,824,918 km (0.114 R)
• M8: 5,961,176 km (0.082 R)
• M9: 7,328,351 km (0.053 R)
• M10: 8,224,741 km (0.102 R)
• M11: 9,159,429 km (0.056 R)
• M12: 11,124,846 km (0.103 R)
• M13: 11,745,976 km (0.103 R)
• M14: 12,720,905 km (0.036 R)
• M15: 13,486,846 km (0.109 R)
• M16: 16,610,899 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 43.9

Radius: 7.9

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 5.08 AU - 7.24 AU

Year: 9721 Days

Day: 17.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,132,458 km

• M1: 98,286 km (0.052 R)
• M2: 752,926 km (0.118 R)
• M3: 1,587,084 km (0.037 R)
• M4: 3,386,597 km (0.061 R)
• M5: 4,496,463 km (0.104 R)
• M6: 5,580,150 km (0.089 R)
• M7: 5,934,248 km (0.099 R)
• M8: 8,253,315 km (0.117 R)
• M9: 8,848,265 km (0.107 R)
• M10: 13,522,451 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.7

Radius: 3

Gravity: 33.41 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 7.71 AU - 9.63 AU

Year: 16232 Days

Day: 18.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 83,132,458 km

• M1: 37,399 km (0.114 R)
• M2: 147,803 km (0.097 R)
• M3: 255,064 km (0.118 R)
• M4: 910,752 km (0.08 R)
• M5: 1,201,121 km (0.113 R)
• M6: 1,978,731 km (0.119 R)
• M7: 2,174,555 km (0.044 R)
• M8: 3,183,143 km (0.112 R)
• M9: 3,896,875 km (0.112 R)
• M10: 4,349,408 km (0.06 R)
• M11: 4,527,729 km (0.073 R)
• M12: 6,098,357 km (0.078 R)
• M13: 9,645,323 km (0.099 R)
• M14: 9,897,694 km (0.12 R)
• M15: 10,574,475 km (0.103 R)
• M16: 13,403,221 km (0.052 R)
• M17: 15,776,292 km (0.105 R)
• M18: 17,061,488 km (0.081 R)
• M19: 17,729,442 km (0.094 R)
• M20: 22,901,040 km (0.058 R)
• M21: 25,682,514 km (0.101 R)
• M22: 28,371,236 km (0.09 R)
• M23: 30,804,595 km (0.105 R)
• M24: 34,533,621 km (0.109 R)
• M25: 36,933,919 km (0.11 R)
• M26: 39,828,937 km (0.041 R)
• M27: 40,087,592 km (0.099 R)
• M28: 49,265,571 km (0.044 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 771.4

Radius: 3.4

Gravity: 66.73 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.81 AU - 9.65 AU

Year: 16400 Days

Day: 21 Hours

Environment

Temp: -235 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,132,458 km

• M1: 42,486 km (0.065 R)
• M2: 153,338 km (0.067 R)
• M3: 262,395 km (0.056 R)
• M4: 1,036,863 km (0.1 R)
• M5: 1,288,786 km (0.061 R)
• M6: 1,406,519 km (0.113 R)
• M7: 1,563,747 km (0.107 R)
• M8: 2,188,018 km (0.077 R)
• M9: 2,313,531 km (0.072 R)
• M10: 3,524,675 km (0.119 R)
• M11: 4,680,768 km (0.109 R)
• M12: 5,032,024 km (0.034 R)
• M13: 7,755,453 km (0.066 R)
• M14: 9,236,472 km (0.071 R)
• M15: 9,620,190 km (0.073 R)
• M16: 12,084,366 km (0.076 R)
• M17: 12,411,088 km (0.091 R)
• M18: 13,565,685 km (0.104 R)
• M19: 14,061,302 km (0.113 R)
• M20: 16,560,933 km (0.113 R)
• M21: 17,455,977 km (0.055 R)
• M22: 22,712,697 km (0.079 R)
• M23: 23,511,549 km (0.091 R)
• M24: 24,432,474 km (0.1 R)
• M25: 28,242,732 km (0.108 R)
• M26: 30,709,002 km (0.102 R)
• M27: 32,056,281 km (0.105 R)
• M28: 32,180,746 km (0.094 R)
• M29: 33,442,454 km (0.108 R)
• M30: 45,526,522 km (0.072 R)
• M31: 46,316,099 km (0.075 R)
• M32: 50,401,617 km (0.104 R)
• M33: 55,613,308 km (0.097 R)
• M34: 56,515,383 km (0.103 R)
• M35: 61,940,849 km (0.055 R)
• M36: 66,280,683 km (0.057 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.9

Radius: 5

Gravity: 33.52 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 9.91 AU - 10.45 AU

Year: 20652 Days

Day: 18.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 83,132,458 km

• M1: 62,532 km (0.069 R)
• M2: 266,583 km (0.09 R)
• M3: 442,211 km (0.11 R)
• M4: 757,115 km (0.116 R)
• M5: 1,556,117 km (0.056 R)
• M6: 1,733,839 km (0.105 R)
• M7: 2,560,966 km (0.055 R)
• M8: 2,784,166 km (0.108 R)
• M9: 3,593,341 km (0.089 R)
• M10: 4,168,395 km (0.077 R)
• M11: 4,548,822 km (0.11 R)
• M12: 5,299,355 km (0.091 R)
• M13: 5,999,473 km (0.098 R)
• M14: 7,990,770 km (0.063 R)
• M15: 8,414,431 km (0.12 R)
• M16: 9,422,422 km (0.102 R)
• M17: 10,260,170 km (0.108 R)
• M18: 10,952,359 km (0.107 R)
• M19: 11,945,839 km (0.039 R)
• M20: 13,583,636 km (0.078 R)
• M21: 16,438,412 km (0.089 R)
• M22: 19,385,042 km (0.12 R)
• M23: 22,352,914 km (0.105 R)
• M24: 24,381,461 km (0.034 R)
• M25: 25,383,767 km (0.11 R)
• M26: 26,879,596 km (0.092 R)
• M27: 27,233,096 km (0.081 R)
• M28: 28,800,283 km (0.102 R)
• M29: 31,849,686 km (0.106 R)
• M30: 33,316,493 km (0.119 R)
• M31: 34,549,778 km (0.094 R)
• M32: 35,529,644 km (0.104 R)
• M33: 42,434,932 km (0.086 R)
• M34: 49,298,333 km (0.102 R)
• M35: 49,650,785 km (0.09 R)
• M36: 53,084,056 km (0.089 R)
• M37: 59,019,801 km (0.077 R)
• M38: 74,017,735 km (0.107 R)
• M39: 76,112,853 km (0.112 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 13,974 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit