🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.65 AU - 0.69 AU

Year: 360 Days

Day: 31.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.1

Radius: 14.3

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.7 AU - 1.14 AU

Year: 579 Days

Day: 5.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,337,505 km

• M1: 177,872 km (0.108 R)
• M2: 624,422 km (0.067 R)
• M3: 1,190,799 km (0.058 R)
• M4: 1,667,717 km (0.084 R)
• M5: 2,869,138 km (0.109 R)
• M6: 3,590,349 km (0.103 R)
• M7: 4,181,560 km (0.088 R)
• M8: 4,630,652 km (0.083 R)
• M9: 5,413,947 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.6

Radius: 13.7

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.11 AU - 1.27 AU

Year: 852 Days

Day: 14.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 79,337,505 km

• M1: 171,589 km (0.118 R)
• M2: 676,631 km (0.083 R)
• M3: 1,255,725 km (0.077 R)
• M4: 2,632,025 km (0.092 R)
• M5: 3,422,051 km (0.109 R)
• M6: 3,887,151 km (0.074 R)
• M7: 4,618,984 km (0.071 R)
• M8: 5,140,332 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.3

Radius: 15

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.89 AU - 4.27 AU

Year: 4444 Days

Day: 10.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,337,505 km

• M1: 187,446 km (0.111 R)
• M2: 734,226 km (0.116 R)
• M3: 1,269,787 km (0.045 R)
• M4: 1,772,884 km (0.078 R)
• M5: 2,517,283 km (0.08 R)
• M6: 3,112,533 km (0.112 R)
• M7: 3,925,897 km (0.11 R)
• M8: 4,828,870 km (0.113 R)
• M9: 8,001,093 km (0.116 R)
• M10: 8,852,903 km (0.089 R)
• M11: 10,081,999 km (0.109 R)
• M12: 11,378,414 km (0.096 R)
• M13: 12,925,256 km (0.093 R)
• M14: 15,718,697 km (0.059 R)
• M15: 17,343,629 km (0.11 R)
• M16: 22,336,009 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.1

Radius: 8.6

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.49 AU - 4.19 AU

Year: 4936 Days

Day: 7.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,337,505 km

• M1: 106,962 km (0.062 R)
• M2: 555,307 km (0.115 R)
• M3: 844,181 km (0.118 R)
• M4: 1,226,104 km (0.039 R)
• M5: 1,670,111 km (0.093 R)
• M6: 1,980,227 km (0.099 R)
• M7: 2,881,853 km (0.078 R)
• M8: 3,331,545 km (0.047 R)
• M9: 4,011,018 km (0.101 R)
• M10: 4,496,613 km (0.054 R)
• M11: 4,779,951 km (0.086 R)
• M12: 5,555,766 km (0.087 R)
• M13: 7,533,450 km (0.085 R)
• M14: 8,504,190 km (0.102 R)
• M15: 9,100,936 km (0.089 R)
• M16: 9,682,872 km (0.112 R)
• M17: 12,063,273 km (0.098 R)
• M18: 13,547,583 km (0.08 R)
• M19: 14,361,396 km (0.084 R)
• M20: 16,386,652 km (0.103 R)
• M21: 16,752,119 km (0.114 R)
• M22: 17,499,061 km (0.061 R)
• M23: 18,529,491 km (0.064 R)
• M24: 21,066,372 km (0.068 R)
• M25: 21,353,899 km (0.116 R)
• M26: 22,010,185 km (0.06 R)
• M27: 29,690,091 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.2

Radius: 12.8

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.6 AU - 5.14 AU

Year: 7050 Days

Day: 13.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,337,505 km

• M1: 159,172 km (0.088 R)
• M2: 585,227 km (0.108 R)
• M3: 1,657,395 km (0.102 R)
• M4: 2,169,917 km (0.065 R)
• M5: 2,613,325 km (0.084 R)
• M6: 3,225,928 km (0.097 R)
• M7: 3,638,370 km (0.103 R)
• M8: 5,401,830 km (0.117 R)
• M9: 6,471,903 km (0.115 R)
• M10: 7,363,656 km (0.107 R)
• M11: 9,904,127 km (0.114 R)
• M12: 11,767,668 km (0.113 R)
• M13: 12,586,267 km (0.061 R)
• M14: 13,500,759 km (0.112 R)
• M15: 14,459,083 km (0.078 R)
• M16: 15,143,792 km (0.095 R)
• M17: 17,677,083 km (0.036 R)
• M18: 18,532,633 km (0.112 R)
• M19: 19,192,360 km (0.089 R)
• M20: 22,233,385 km (0.092 R)
• M21: 23,230,305 km (0.111 R)
• M22: 23,739,836 km (0.104 R)
• M23: 28,184,538 km (0.09 R)
• M24: 32,411,875 km (0.092 R)
• M25: 35,566,146 km (0.102 R)
• M26: 38,919,532 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.7

Radius: 14.4

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.34 AU - 5.48 AU

Year: 7137 Days

Day: 6.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,337,505 km

• M1: 179,218 km (0.077 R)
• M2: 767,736 km (0.091 R)
• M3: 1,237,324 km (0.094 R)
• M4: 1,760,617 km (0.032 R)
• M5: 2,368,134 km (0.079 R)
• M6: 3,114,179 km (0.038 R)
• M7: 3,586,459 km (0.089 R)
• M8: 4,154,632 km (0.097 R)
• M9: 5,738,126 km (0.111 R)
• M10: 7,264,323 km (0.115 R)
• M11: 8,065,719 km (0.106 R)
• M12: 8,685,054 km (0.042 R)
• M13: 9,252,927 km (0.025 R)
• M14: 11,825,412 km (0.107 R)
• M15: 12,883,518 km (0.099 R)
• M16: 15,479,789 km (0.096 R)
• M17: 16,195,017 km (0.111 R)
• M18: 17,057,299 km (0.066 R)
• M19: 19,483,776 km (0.084 R)
• M20: 21,393,991 km (0.109 R)
• M21: 22,432,350 km (0.066 R)
• M22: 23,973,508 km (0.051 R)
• M23: 29,926,007 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 424.4

Radius: 7.2

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.27 AU - 8.71 AU

Year: 12123 Days

Day: 18.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,337,505 km

• M1: 115,041 km (0.05 R)
• M2: 489,035 km (0.079 R)
• M3: 779,854 km (0.105 R)
• M4: 1,470,996 km (0.055 R)
• M5: 2,094,819 km (0.113 R)
• M6: 2,654,165 km (0.03 R)
• M7: 2,969,069 km (0.091 R)
• M8: 3,238,943 km (0.096 R)
• M9: 3,674,423 km (0.103 R)
• M10: 4,066,519 km (0.097 R)
• M11: 4,691,988 km (0.101 R)
• M12: 5,544,995 km (0.109 R)
• M13: 6,204,572 km (0.113 R)
• M14: 7,931,380 km (0.049 R)
• M15: 9,043,640 km (0.108 R)
• M16: 11,906,644 km (0.075 R)
• M17: 13,299,999 km (0.094 R)
• M18: 13,787,688 km (0.091 R)
• M19: 14,734,343 km (0.095 R)
• M20: 17,541,846 km (0.111 R)
• M21: 19,263,419 km (0.111 R)
• M22: 19,573,834 km (0.08 R)
• M23: 22,094,708 km (0.089 R)
• M24: 22,865,287 km (0.107 R)
• M25: 24,189,078 km (0.094 R)
• M26: 26,988,653 km (0.077 R)
• M27: 30,835,712 km (0.091 R)
• M28: 33,000,093 km (0.081 R)
• M29: 34,232,780 km (0.091 R)
• M30: 34,917,789 km (0.103 R)
• M31: 35,612,072 km (0.115 R)
• M32: 46,459,863 km (0.077 R)

Asteroid Belt

Center: 8.25 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.2

Radius: 3.6

Gravity: 64.75 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.92 AU - 11.1 AU

Year: 19239 Days

Day: 24.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 79,337,505 km

• M1: 44,730 km (0.069 R)
• M2: 199,713 km (0.036 R)
• M3: 441,314 km (0.082 R)
• M4: 737,966 km (0.068 R)
• M5: 877,691 km (0.095 R)
• M6: 1,268,889 km (0.098 R)
• M7: 1,537,118 km (0.106 R)
• M8: 2,618,711 km (0.046 R)
• M9: 3,106,549 km (0.085 R)
• M10: 3,837,485 km (0.078 R)
• M11: 4,784,589 km (0.093 R)
• M12: 6,707,520 km (0.073 R)
• M13: 7,762,783 km (0.075 R)
• M14: 9,488,245 km (0.072 R)
• M15: 9,837,855 km (0.103 R)
• M16: 17,954,288 km (0.084 R)
• M17: 18,760,171 km (0.056 R)
• M18: 19,034,085 km (0.099 R)
• M19: 19,403,293 km (0.083 R)
• M20: 21,026,430 km (0.097 R)
• M21: 21,223,001 km (0.097 R)
• M22: 23,680,146 km (0.107 R)
• M23: 26,320,249 km (0.114 R)
• M24: 26,548,835 km (0.062 R)
• M25: 27,242,221 km (0.09 R)
• M26: 31,017,922 km (0.101 R)
• M27: 32,700,000 km (0.106 R)
• M28: 33,630,349 km (0.092 R)
• M29: 36,527,312 km (0.074 R)
• M30: 41,101,117 km (0.065 R)
• M31: 43,127,570 km (0.084 R)
• M32: 44,730,960 km (0.119 R)
• M33: 45,876,730 km (0.07 R)
• M34: 48,740,482 km (0.074 R)
• M35: 49,085,006 km (0.098 R)
• M36: 52,982,779 km (0.092 R)
• M37: 60,987,162 km (0.095 R)
• M38: 61,187,025 km (0.065 R)
• M39: 70,417,363 km (0.094 R)
• M40: 71,299,841 km (0.113 R)
• M41: 71,966,449 km (0.068 R)
• M42: 73,537,975 km (0.101 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 18,752 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit