🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.3

Radius: 9.3

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.64 AU - 0.8 AU

Year: 388 Days

Day: 12.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,760,580 km

• M1: 115,789 km (0.073 R)
• M2: 469,588 km (0.116 R)
• M3: 790,924 km (0.094 R)
• M4: 1,573,620 km (0.043 R)
• M5: 1,903,334 km (0.095 R)
• M6: 2,532,243 km (0.048 R)
• M7: 2,854,776 km (0.103 R)
• M8: 3,160,853 km (0.117 R)
• M9: 3,559,532 km (0.071 R)
• M10: 3,877,278 km (0.086 R)
• M11: 4,669,398 km (0.115 R)
• M12: 5,126,869 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.2

Radius: 9.3

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.61 AU - 0.85 AU

Year: 397 Days

Day: 12.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,760,580 km

• M1: 115,639 km (0.105 R)
• M2: 442,062 km (0.03 R)
• M3: 804,238 km (0.096 R)
• M4: 1,154,447 km (0.07 R)
• M5: 1,637,049 km (0.077 R)
• M6: 2,035,129 km (0.107 R)
• M7: 2,505,316 km (0.055 R)
• M8: 3,084,858 km (0.118 R)
• M9: 3,707,634 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.4

Radius: 13.7

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.72 AU - 1.02 AU

Year: 516 Days

Day: 7.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,760,580 km

• M1: 170,392 km (0.053 R)
• M2: 712,235 km (0.06 R)
• M3: 1,219,522 km (0.111 R)
• M4: 1,877,004 km (0.088 R)
• M5: 2,408,675 km (0.099 R)
• M6: 2,870,484 km (0.105 R)
• M7: 3,336,930 km (0.046 R)
• M8: 3,890,442 km (0.049 R)
• M9: 4,491,526 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.9

Radius: 11.3

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.09 AU - 1.41 AU

Year: 889 Days

Day: 9 Hours

Environment

Temp: -166 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,760,580 km

• M1: 140,472 km (0.099 R)
• M2: 523,443 km (0.091 R)
• M3: 894,595 km (0.1 R)
• M4: 1,332,468 km (0.076 R)
• M5: 1,718,880 km (0.075 R)
• M6: 2,171,114 km (0.103 R)
• M7: 2,725,075 km (0.114 R)
• M8: 3,627,300 km (0.072 R)
• M9: 3,983,791 km (0.11 R)
• M10: 4,734,773 km (0.102 R)
• M11: 5,412,451 km (0.069 R)
• M12: 5,957,436 km (0.117 R)
• M13: 6,354,319 km (0.098 R)
• M14: 6,918,303 km (0.103 R)
• M15: 7,652,679 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.8

Radius: 15

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.47 AU - 1.67 AU

Year: 1251 Days

Day: 13.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 114.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,760,580 km

• M1: 200,162 km (0.087 R)
• M2: 823,237 km (0.056 R)
• M3: 2,147,627 km (0.075 R)
• M4: 2,819,321 km (0.096 R)
• M5: 5,315,512 km (0.052 R)
• M6: 7,060,421 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 11.7

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.17 AU - 2.71 AU

Year: 2423 Days

Day: 6.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,760,580 km

• M1: 145,559 km (0.054 R)
• M2: 550,221 km (0.086 R)
• M3: 1,005,597 km (0.102 R)
• M4: 1,395,898 km (0.099 R)
• M5: 2,660,299 km (0.099 R)
• M6: 3,263,777 km (0.115 R)
• M7: 3,646,149 km (0.083 R)
• M8: 4,110,201 km (0.101 R)
• M9: 6,099,105 km (0.092 R)
• M10: 7,855,384 km (0.112 R)
• M11: 8,719,461 km (0.113 R)
• M12: 10,021,711 km (0.088 R)
• M13: 12,194,171 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.1

Radius: 11.2

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.83 AU - 5.41 AU

Year: 6314 Days

Day: 11.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,760,580 km

• M1: 140,173 km (0.088 R)
• M2: 579,243 km (0.072 R)
• M3: 989,590 km (0.117 R)
• M4: 1,598,304 km (0.087 R)
• M5: 2,081,206 km (0.084 R)
• M6: 3,111,337 km (0.083 R)
• M7: 4,560,192 km (0.054 R)
• M8: 6,416,851 km (0.114 R)
• M9: 7,724,336 km (0.085 R)
• M10: 14,758,728 km (0.095 R)
• M11: 15,550,399 km (0.084 R)
• M12: 18,790,989 km (0.119 R)
• M13: 20,086,805 km (0.099 R)
• M14: 22,140,934 km (0.08 R)
• M15: 23,750,158 km (0.057 R)
• M16: 25,695,678 km (0.101 R)
• M17: 27,653,765 km (0.085 R)
• M18: 30,094,005 km (0.115 R)
• M19: 35,398,895 km (0.084 R)
• M20: 36,376,218 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 827.5

Radius: 7.9

Gravity: 13.26 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.05 AU - 9.13 AU

Year: 14630 Days

Day: 24.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,760,580 km

• M1: 98,585 km (0.083 R)
• M2: 520,900 km (0.119 R)
• M3: 797,805 km (0.066 R)
• M4: 1,634,955 km (0.104 R)
• M5: 2,353,324 km (0.113 R)
• M6: 3,214,559 km (0.096 R)
• M7: 3,646,299 km (0.086 R)
• M8: 4,085,667 km (0.046 R)
• M9: 4,659,076 km (0.113 R)
• M10: 5,431,300 km (0.104 R)
• M11: 6,492,398 km (0.093 R)
• M12: 8,114,338 km (0.1 R)
• M13: 11,328,598 km (0.115 R)
• M14: 11,946,587 km (0.111 R)
• M15: 12,200,006 km (0.099 R)
• M16: 12,652,240 km (0.099 R)
• M17: 13,249,883 km (0.11 R)
• M18: 13,796,963 km (0.107 R)
• M19: 14,501,718 km (0.025 R)
• M20: 15,378,811 km (0.075 R)
• M21: 17,078,093 km (0.112 R)
• M22: 19,070,437 km (0.057 R)
• M23: 22,534,226 km (0.076 R)
• M24: 27,261,519 km (0.088 R)
• M25: 29,855,845 km (0.107 R)
• M26: 34,751,885 km (0.08 R)
• M27: 37,660,217 km (0.058 R)
• M28: 39,173,549 km (0.046 R)
• M29: 55,360,786 km (0.119 R)
• M30: 59,683,716 km (0.088 R)
• M31: 63,261,648 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.8

Radius: 6.3

Gravity: 20.71 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.31 AU - 9.03 AU

Year: 14848 Days

Day: 23.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 90.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 75,760,580 km

• M1: 78,389 km (0.072 R)
• M2: 433,235 km (0.091 R)
• M3: 700,268 km (0.108 R)
• M4: 905,067 km (0.097 R)
• M5: 1,255,575 km (0.079 R)
• M6: 2,050,837 km (0.115 R)
• M7: 2,892,774 km (0.096 R)
• M8: 3,798,140 km (0.084 R)
• M9: 4,158,821 km (0.112 R)
• M10: 5,565,938 km (0.101 R)
• M11: 6,356,264 km (0.101 R)
• M12: 7,678,709 km (0.063 R)
• M13: 10,274,083 km (0.115 R)
• M14: 13,470,091 km (0.09 R)
• M15: 14,886,035 km (0.108 R)
• M16: 18,010,686 km (0.095 R)
• M17: 19,027,054 km (0.076 R)
• M18: 19,725,526 km (0.038 R)
• M19: 20,622,515 km (0.062 R)
• M20: 21,640,230 km (0.077 R)
• M21: 22,401,234 km (0.048 R)
• M22: 27,676,803 km (0.112 R)
• M23: 27,899,105 km (0.111 R)
• M24: 29,142,862 km (0.051 R)
• M25: 30,660,084 km (0.093 R)
• M26: 36,718,049 km (0.105 R)
• M27: 40,453,059 km (0.109 R)
• M28: 44,738,590 km (0.117 R)
• M29: 49,480,393 km (0.109 R)
• M30: 51,132,403 km (0.115 R)
• M31: 51,635,201 km (0.084 R)
• M32: 56,844,947 km (0.115 R)
• M33: 65,103,497 km (0.057 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 818.5

Radius: 7.5

Gravity: 14.55 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 7.41 AU - 11.29 AU

Year: 18178 Days

Day: 21.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,760,580 km

• M1: 93,349 km (0.065 R)
• M2: 403,166 km (0.091 R)
• M3: 1,863,391 km (0.115 R)
• M4: 4,245,288 km (0.032 R)
• M5: 7,410,480 km (0.118 R)
• M6: 9,438,578 km (0.112 R)
• M7: 11,294,789 km (0.101 R)
• M8: 13,813,419 km (0.116 R)
• M9: 15,951,920 km (0.073 R)
• M10: 16,274,453 km (0.112 R)
• M11: 17,952,941 km (0.106 R)
• M12: 20,303,273 km (0.07 R)
• M13: 25,385,412 km (0.117 R)
• M14: 26,494,680 km (0.109 R)
• M15: 32,528,860 km (0.06 R)
• M16: 35,178,986 km (0.114 R)
• M17: 38,113,050 km (0.09 R)
• M18: 46,562,487 km (0.095 R)
• M19: 60,174,846 km (0.052 R)
• M20: 63,544,987 km (0.106 R)
• M21: 65,173,659 km (0.063 R)
• M22: 70,226,177 km (0.103 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 19,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit