🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.66 AU - 1 AU

Year: 268 Days

Day: 37.2 Hours

Environment

Temp: 184 °C

Axial Tilt: 18.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.16 AU - 1.78 AU

Year: 632 Days

Day: 29.6 Hours

Environment

Temp: -21 °C

Axial Tilt: 14.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.64 AU - 1.88 AU

Year: 828 Days

Day: 42.7 Hours

Environment

Temp: -49 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 72,853,108 km

• M1: 405,560 km (0.092 R)
• M2: 869,912 km (0.085 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.99 AU - 2.93 AU

Year: 1369 Days

Day: 33 Hours

Environment

Temp: -75 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.28 AU - 2.8 AU

Year: 1436 Days

Day: 13.9 Hours

Environment

Temp: -77 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.83 AU - 3.43 AU

Year: 1965 Days

Day: 14.7 Hours

Environment

Temp: -94 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.5

Radius: 14.1

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.78 AU - 9.54 AU

Year: 8269 Days

Day: 6.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 138 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 72,853,108 km

• M1: 181,313 km (0.118 R)
• M2: 309,069 km (0.059 R)
• M3: 400,922 km (0.119 R)
• M4: 553,662 km (0.083 R)
• M5: 690,843 km (0.118 R)
• M6: 841,488 km (0.048 R)
• M7: 1,019,958 km (0.087 R)
• M8: 1,487,601 km (0.089 R)
• M9: 1,670,559 km (0.078 R)
• M10: 2,244,118 km (0.1 R)
• M11: 2,542,416 km (0.104 R)
• M12: 2,718,792 km (0.114 R)
• M13: 3,107,297 km (0.11 R)
• M14: 3,248,817 km (0.065 R)
• M15: 3,562,823 km (0.109 R)
• M16: 3,988,578 km (0.106 R)
• M17: 4,142,814 km (0.093 R)
• M18: 4,272,964 km (0.108 R)
• M19: 4,563,932 km (0.081 R)
• M20: 4,916,384 km (0.069 R)
• M21: 5,221,714 km (0.1 R)
• M22: 5,734,535 km (0.099 R)
• M23: 6,443,779 km (0.114 R)
• M24: 6,595,022 km (0.115 R)
• M25: 7,306,210 km (0.09 R)
• M26: 7,432,471 km (0.111 R)
• M27: 8,204,994 km (0.106 R)
• M28: 8,435,226 km (0.098 R)
• M29: 9,172,593 km (0.068 R)
• M30: 9,791,480 km (0.075 R)
• M31: 10,352,921 km (0.026 R)
• M32: 10,566,098 km (0.111 R)
• M33: 11,033,292 km (0.086 R)
• M34: 11,728,174 km (0.078 R)
• M35: 11,876,276 km (0.063 R)
• M36: 12,024,976 km (0.062 R)
• M37: 13,121,828 km (0.05 R)
• M38: 13,275,764 km (0.08 R)
• M39: 14,766,806 km (0.117 R)
• M40: 14,966,968 km (0.095 R)
• M41: 15,087,544 km (0.109 R)
• M42: 15,776,591 km (0.074 R)
• M43: 16,683,603 km (0.094 R)
• M44: 17,353,951 km (0.073 R)
• M45: 17,522,997 km (0.086 R)
• M46: 17,650,006 km (0.104 R)
• M47: 17,777,463 km (0.115 R)
• M48: 20,211,271 km (0.115 R)
• M49: 20,478,303 km (0.092 R)
• M50: 20,567,463 km (0.116 R)
• M51: 20,701,653 km (0.038 R)
• M52: 21,105,716 km (0.074 R)
• M53: 22,379,542 km (0.049 R)
• M54: 22,471,395 km (0.04 R)
• M55: 22,794,228 km (0.107 R)
• M56: 23,537,879 km (0.09 R)
• M57: 24,431,277 km (0.1 R)
• M58: 25,383,617 km (0.033 R)
• M59: 25,912,595 km (0.119 R)
• M60: 26,009,235 km (0.076 R)
• M61: 26,299,605 km (0.065 R)
• M62: 26,786,097 km (0.113 R)
• M63: 27,177,445 km (0.063 R)
• M64: 28,164,043 km (0.099 R)
• M65: 29,162,459 km (0.1 R)
• M66: 29,666,006 km (0.063 R)
• M67: 29,766,984 km (0.106 R)
• M68: 29,918,826 km (0.05 R)
• M69: 30,223,108 km (0.097 R)
• M70: 31,091,075 km (0.108 R)
• M71: 32,070,941 km (0.069 R)
• M72: 32,538,584 km (0.028 R)
• M73: 33,113,189 km (0.084 R)
• M74: 34,431,596 km (0.09 R)
• M75: 34,644,174 km (0.089 R)
• M76: 34,910,458 km (0.087 R)
• M77: 35,284,453 km (0.101 R)
• M78: 35,767,205 km (0.113 R)
• M79: 35,874,766 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352

Radius: 7.7

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 12.28 AU - 14.28 AU

Year: 17169 Days

Day: 23.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 72,853,108 km

• M1: 135,087 km (0.093 R)
• M2: 326,123 km (0.075 R)
• M3: 1,409,810 km (0.066 R)
• M4: 2,073,277 km (0.108 R)
• M5: 2,183,082 km (0.067 R)
• M6: 3,288,161 km (0.074 R)
• M7: 3,352,189 km (0.043 R)
• M8: 4,153,136 km (0.116 R)
• M9: 5,084,682 km (0.096 R)
• M10: 5,308,630 km (0.083 R)
• M11: 7,088,845 km (0.082 R)
• M12: 7,805,269 km (0.062 R)
• M13: 8,324,972 km (0.071 R)
• M14: 9,718,476 km (0.084 R)
• M15: 11,279,829 km (0.094 R)
• M16: 12,413,332 km (0.098 R)
• M17: 12,816,050 km (0.098 R)
• M18: 13,582,739 km (0.09 R)
• M19: 13,789,633 km (0.067 R)
• M20: 14,101,993 km (0.047 R)
• M21: 14,627,979 km (0.089 R)
• M22: 15,213,804 km (0.034 R)
• M23: 16,079,527 km (0.09 R)
• M24: 16,463,395 km (0.052 R)
• M25: 16,573,649 km (0.05 R)
• M26: 16,684,052 km (0.041 R)
• M27: 16,850,255 km (0.087 R)
• M28: 17,971,940 km (0.118 R)
• M29: 18,199,179 km (0.049 R)
• M30: 18,256,176 km (0.102 R)
• M31: 18,771,541 km (0.101 R)
• M32: 19,407,781 km (0.028 R)
• M33: 19,816,482 km (0.073 R)
• M34: 20,345,909 km (0.112 R)
• M35: 20,701,503 km (0.105 R)
• M36: 22,571,327 km (0.115 R)
• M37: 22,939,487 km (0.11 R)
• M38: 23,247,808 km (0.093 R)
• M39: 23,619,559 km (0.104 R)
• M40: 25,380,176 km (0.112 R)
• M41: 25,571,362 km (0.105 R)
• M42: 27,052,681 km (0.068 R)
• M43: 27,182,831 km (0.118 R)
• M44: 27,508,954 km (0.038 R)
• M45: 28,099,417 km (0.084 R)
• M46: 29,627,260 km (0.091 R)
• M47: 29,963,107 km (0.11 R)
• M48: 31,113,814 km (0.115 R)
• M49: 32,624,603 km (0.03 R)
• M50: 33,040,635 km (0.105 R)
• M51: 33,878,233 km (0.104 R)
• M52: 34,088,717 km (0.113 R)
• M53: 38,315,605 km (0.093 R)
• M54: 42,024,735 km (0.096 R)
• M55: 42,931,747 km (0.078 R)
• M56: 44,074,674 km (0.119 R)
• M57: 45,227,625 km (0.1 R)
• M58: 45,614,186 km (0.081 R)
• M59: 46,468,390 km (0.048 R)
• M60: 46,624,271 km (0.086 R)
• M61: 47,014,721 km (0.08 R)
• M62: 47,563,147 km (0.12 R)
• M63: 48,429,319 km (0.049 R)
• M64: 48,587,294 km (0.07 R)
• M65: 49,778,093 km (0.12 R)
• M66: 50,497,060 km (0.104 R)
• M67: 53,979,848 km (0.108 R)
• M68: 55,047,828 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.9

Radius: 3.2

Gravity: 29.19 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 17.71 AU - 19.41 AU

Year: 28366 Days

Day: 18.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 72,853,108 km

• M1: 73,602 km (0.068 R)
• M2: 123,867 km (0.044 R)
• M3: 147,653 km (0.091 R)
• M4: 537,206 km (0.066 R)
• M5: 579,093 km (0.096 R)
• M6: 689,048 km (0.115 R)
• M7: 1,191,248 km (0.101 R)
• M8: 1,780,963 km (0.114 R)
• M9: 2,205,521 km (0.029 R)
• M10: 2,916,560 km (0.12 R)
• M11: 3,180,750 km (0.104 R)
• M12: 3,219,197 km (0.043 R)
• M13: 3,571,500 km (0.089 R)
• M14: 3,691,627 km (0.049 R)
• M15: 5,188,653 km (0.092 R)
• M16: 5,600,346 km (0.113 R)
• M17: 9,360,788 km (0.117 R)
• M18: 10,029,041 km (0.113 R)
• M19: 10,540,367 km (0.096 R)
• M20: 11,001,876 km (0.059 R)
• M21: 11,118,263 km (0.079 R)
• M22: 13,717,826 km (0.101 R)
• M23: 15,506,118 km (0.066 R)
• M24: 17,298,600 km (0.069 R)
• M25: 17,705,656 km (0.092 R)
• M26: 18,391,263 km (0.098 R)
• M27: 19,155,409 km (0.098 R)
• M28: 19,295,433 km (0.111 R)
• M29: 20,285,172 km (0.107 R)
• M30: 23,053,630 km (0.103 R)
• M31: 25,091,303 km (0.12 R)
• M32: 26,871,966 km (0.027 R)
• M33: 27,264,362 km (0.085 R)
• M34: 27,817,126 km (0.096 R)
• M35: 28,933,425 km (0.098 R)
• M36: 29,496,960 km (0.045 R)
• M37: 31,374,264 km (0.058 R)
• M38: 31,953,357 km (0.079 R)
• M39: 36,623,354 km (0.104 R)
• M40: 38,815,412 km (0.103 R)
• M41: 39,170,108 km (0.069 R)
• M42: 39,971,953 km (0.108 R)
• M43: 41,864,067 km (0.06 R)
• M44: 44,709,867 km (0.102 R)
• M45: 45,081,618 km (0.1 R)
• M46: 45,454,415 km (0.071 R)
• M47: 46,296,801 km (0.112 R)
• M48: 47,807,141 km (0.104 R)
• M49: 48,473,001 km (0.117 R)
• M50: 51,069,871 km (0.072 R)
• M51: 52,043,154 km (0.081 R)
• M52: 53,317,429 km (0.104 R)
• M53: 55,297,806 km (0.078 R)
• M54: 55,497,220 km (0.101 R)
• M55: 57,000,080 km (0.108 R)
• M56: 58,719,408 km (0.072 R)
• M57: 58,821,135 km (0.107 R)
• M58: 59,432,392 km (0.105 R)
• M59: 59,841,093 km (0.059 R)
• M60: 63,978,671 km (0.057 R)
• M61: 64,607,132 km (0.09 R)
• M62: 65,764,870 km (0.113 R)
• M63: 66,187,484 km (0.058 R)
• M64: 66,717,210 km (0.084 R)
• M65: 67,780,551 km (0.109 R)
• M66: 71,981,110 km (0.118 R)

Kuiper Belt

Range: 30.9 - 57.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 20,307 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit