🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.54 AU - 0.7 AU

Year: 315 Days

Day: 15.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22

Radius: 12.8

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.64 AU - 0.86 AU

Year: 419 Days

Day: 7.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 86,903,416 km

• M1: 160,668 km (0.081 R)
• M2: 823,536 km (0.084 R)
• M3: 1,276,967 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 563.2

Radius: 11.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.19 AU - 1.85 AU

Year: 1210 Days

Day: 7.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,903,416 km

• M1: 143,016 km (0.119 R)
• M2: 539,749 km (0.091 R)
• M3: 975,378 km (0.079 R)
• M4: 1,784,703 km (0.089 R)
• M5: 2,449,964 km (0.116 R)
• M6: 2,971,911 km (0.1 R)
• M7: 3,360,417 km (0.068 R)
• M8: 3,767,174 km (0.119 R)
• M9: 4,326,221 km (0.094 R)
• M10: 5,112,208 km (0.077 R)
• M11: 5,590,772 km (0.106 R)
• M12: 6,164,928 km (0.025 R)
• M13: 6,661,444 km (0.099 R)
• M14: 7,111,733 km (0.112 R)
• M15: 7,968,181 km (0.069 R)
• M16: 8,640,923 km (0.096 R)
• M17: 9,177,231 km (0.058 R)
• M18: 9,675,691 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.2

Radius: 12.3

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.12 AU - 3.5 AU

Year: 3041 Days

Day: 8.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,903,416 km

• M1: 153,039 km (0.103 R)
• M2: 565,779 km (0.059 R)
• M3: 976,126 km (0.101 R)
• M4: 1,951,055 km (0.058 R)
• M5: 2,435,453 km (0.118 R)
• M6: 2,829,943 km (0.045 R)
• M7: 3,360,417 km (0.06 R)
• M8: 3,750,269 km (0.113 R)
• M9: 4,170,639 km (0.113 R)
• M10: 4,764,393 km (0.103 R)
• M11: 5,652,256 km (0.076 R)
• M12: 9,663,574 km (0.119 R)
• M13: 10,256,131 km (0.067 R)
• M14: 11,866,402 km (0.111 R)
• M15: 13,204,256 km (0.027 R)
• M16: 14,640,396 km (0.078 R)
• M17: 16,343,119 km (0.11 R)
• M18: 18,895,109 km (0.075 R)
• M19: 21,835,904 km (0.069 R)
• M20: 22,581,948 km (0.08 R)
• M21: 23,204,874 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.6

Radius: 10.9

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.74 AU - 5.7 AU

Year: 7701 Days

Day: 14.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,903,416 km

• M1: 135,536 km (0.116 R)
• M2: 521,648 km (0.109 R)
• M3: 959,820 km (0.104 R)
• M4: 1,377,946 km (0.113 R)
• M5: 2,089,583 km (0.101 R)
• M6: 2,728,516 km (0.07 R)
• M7: 3,180,301 km (0.048 R)
• M8: 4,588,167 km (0.114 R)
• M9: 4,990,136 km (0.045 R)
• M10: 6,950,018 km (0.073 R)
• M11: 7,442,943 km (0.105 R)
• M12: 12,320,881 km (0.089 R)
• M13: 13,329,619 km (0.12 R)
• M14: 13,854,259 km (0.079 R)
• M15: 14,636,207 km (0.113 R)
• M16: 16,091,645 km (0.101 R)
• M17: 17,571,915 km (0.106 R)
• M18: 18,994,591 km (0.076 R)
• M19: 23,301,364 km (0.097 R)
• M20: 24,580,277 km (0.086 R)
• M21: 29,474,371 km (0.054 R)
• M22: 31,683,931 km (0.092 R)
• M23: 33,465,343 km (0.094 R)
• M24: 34,653,000 km (0.1 R)
• M25: 37,226,832 km (0.098 R)
• M26: 40,286,856 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.4

Radius: 14.9

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.82 AU - 6.1 AU

Year: 8238 Days

Day: 14.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,903,416 km

• M1: 189,391 km (0.072 R)
• M2: 656,884 km (0.106 R)
• M3: 1,155,644 km (0.093 R)
• M4: 1,654,403 km (0.11 R)
• M5: 2,351,230 km (0.117 R)
• M6: 4,395,634 km (0.118 R)
• M7: 5,248,641 km (0.034 R)
• M8: 6,625,989 km (0.099 R)
• M9: 7,592,391 km (0.107 R)
• M10: 8,109,850 km (0.026 R)
• M11: 9,039,601 km (0.07 R)
• M12: 10,324,647 km (0.113 R)
• M13: 10,861,553 km (0.089 R)
• M14: 13,085,924 km (0.093 R)
• M15: 16,636,929 km (0.051 R)
• M16: 18,491,194 km (0.104 R)
• M17: 20,101,167 km (0.12 R)
• M18: 24,705,640 km (0.098 R)
• M19: 25,580,338 km (0.081 R)
• M20: 27,022,611 km (0.117 R)
• M21: 27,763,719 km (0.099 R)
• M22: 28,233,756 km (0.099 R)
• M23: 32,394,970 km (0.03 R)
• M24: 34,405,416 km (0.074 R)
• M25: 34,948,007 km (0.116 R)
• M26: 38,324,282 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.8

Radius: 11

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 4.44 AU - 6.76 AU

Year: 8557 Days

Day: 10.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,903,416 km

• M1: 137,032 km (0.119 R)
• M2: 562,787 km (0.026 R)
• M3: 1,123,330 km (0.098 R)
• M4: 2,552,289 km (0.087 R)
• M5: 3,237,896 km (0.102 R)
• M6: 3,776,000 km (0.082 R)
• M7: 4,805,532 km (0.044 R)
• M8: 12,687,096 km (0.077 R)
• M9: 16,019,688 km (0.053 R)
• M10: 16,919,669 km (0.094 R)
• M11: 18,126,026 km (0.105 R)
• M12: 19,388,782 km (0.113 R)
• M13: 20,188,831 km (0.042 R)
• M14: 22,562,201 km (0.088 R)
• M15: 26,417,937 km (0.118 R)
• M16: 27,040,713 km (0.104 R)
• M17: 29,821,887 km (0.112 R)
• M18: 31,380,547 km (0.116 R)
• M19: 33,301,084 km (0.049 R)
• M20: 34,342,884 km (0.078 R)
• M21: 35,729,357 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308

Radius: 6.6

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.62 AU - 7.44 AU

Year: 10774 Days

Day: 16.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,903,416 km

• M1: 118,332 km (0.072 R)
• M2: 325,974 km (0.048 R)
• M3: 588,219 km (0.078 R)
• M4: 945,758 km (0.058 R)
• M5: 2,032,736 km (0.105 R)
• M6: 2,384,141 km (0.113 R)
• M7: 2,794,937 km (0.082 R)
• M8: 4,183,355 km (0.08 R)
• M9: 4,502,746 km (0.07 R)
• M10: 5,100,988 km (0.103 R)
• M11: 6,316,172 km (0.095 R)
• M12: 6,918,004 km (0.12 R)
• M13: 8,525,882 km (0.102 R)
• M14: 10,368,030 km (0.085 R)
• M15: 11,664,744 km (0.087 R)
• M16: 12,298,291 km (0.06 R)
• M17: 13,178,525 km (0.06 R)
• M18: 13,982,464 km (0.066 R)
• M19: 16,006,224 km (0.06 R)
• M20: 16,854,444 km (0.07 R)
• M21: 19,141,796 km (0.111 R)
• M22: 29,007,326 km (0.033 R)
• M23: 31,763,517 km (0.071 R)
• M24: 32,996,354 km (0.107 R)
• M25: 33,519,348 km (0.039 R)
• M26: 35,996,539 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.6

Radius: 4.4

Gravity: 30.61 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 8.13 AU - 10.15 AU

Year: 17842 Days

Day: 24.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 86,903,416 km

• M1: 55,501 km (0.081 R)
• M2: 319,541 km (0.114 R)
• M3: 486,642 km (0.086 R)
• M4: 1,248,245 km (0.117 R)
• M5: 1,959,433 km (0.099 R)
• M6: 2,233,945 km (0.12 R)
• M7: 3,510,613 km (0.118 R)
• M8: 4,067,566 km (0.062 R)
• M9: 4,448,592 km (0.119 R)
• M10: 5,064,038 km (0.081 R)
• M11: 5,318,055 km (0.041 R)
• M12: 7,525,371 km (0.103 R)
• M13: 16,209,378 km (0.107 R)
• M14: 16,444,247 km (0.112 R)
• M15: 16,602,072 km (0.116 R)
• M16: 17,162,466 km (0.09 R)
• M17: 18,661,437 km (0.055 R)
• M18: 19,442,637 km (0.059 R)
• M19: 19,975,355 km (0.098 R)
• M20: 20,700,755 km (0.086 R)
• M21: 21,916,836 km (0.072 R)
• M22: 26,928,514 km (0.106 R)
• M23: 27,479,184 km (0.1 R)
• M24: 33,658,474 km (0.087 R)
• M25: 35,205,166 km (0.098 R)
• M26: 36,395,965 km (0.098 R)
• M27: 42,605,324 km (0.102 R)
• M28: 43,352,715 km (0.108 R)
• M29: 51,313,117 km (0.071 R)
• M30: 52,842,306 km (0.031 R)
• M31: 53,704,738 km (0.091 R)
• M32: 57,430,024 km (0.093 R)
• M33: 65,192,358 km (0.09 R)
• M34: 66,583,918 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.5

Radius: 6.9

Gravity: 18.18 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.09 AU - 11.75 AU

Year: 21718 Days

Day: 22 Hours

Environment

Temp: -240 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 86,903,416 km

• M1: 85,869 km (0.107 R)
• M2: 867,069 km (0.045 R)
• M3: 1,301,053 km (0.096 R)
• M4: 1,738,327 km (0.093 R)
• M5: 1,991,596 km (0.045 R)
• M6: 2,383,244 km (0.069 R)
• M7: 3,872,341 km (0.077 R)
• M8: 4,664,013 km (0.076 R)
• M9: 7,997,053 km (0.098 R)
• M10: 8,481,302 km (0.086 R)
• M11: 9,627,221 km (0.117 R)
• M12: 10,937,998 km (0.088 R)
• M13: 12,865,118 km (0.119 R)
• M14: 13,908,862 km (0.04 R)
• M15: 16,163,751 km (0.111 R)
• M16: 16,504,684 km (0.032 R)
• M17: 17,024,986 km (0.098 R)
• M18: 17,645,667 km (0.093 R)
• M19: 19,311,140 km (0.109 R)
• M20: 22,737,979 km (0.069 R)
• M21: 23,382,147 km (0.09 R)
• M22: 28,854,886 km (0.117 R)
• M23: 32,220,988 km (0.08 R)
• M24: 33,998,360 km (0.093 R)
• M25: 34,417,533 km (0.111 R)
• M26: 35,123,934 km (0.118 R)
• M27: 36,419,751 km (0.08 R)
• M28: 38,347,320 km (0.115 R)
• M29: 40,030,595 km (0.04 R)
• M30: 41,922,410 km (0.105 R)
• M31: 44,870,685 km (0.09 R)
• M32: 47,430,753 km (0.058 R)
• M33: 50,086,713 km (0.088 R)
• M34: 54,349,056 km (0.03 R)
• M35: 55,499,464 km (0.106 R)
• M36: 56,666,028 km (0.102 R)
• M37: 57,452,763 km (0.092 R)
• M38: 62,118,421 km (0.054 R)
• M39: 64,223,413 km (0.053 R)
• M40: 71,278,449 km (0.073 R)
• M41: 73,818,172 km (0.078 R)
• M42: 75,228,431 km (0.063 R)
• M43: 83,054,943 km (0.054 R)
• M44: 83,307,913 km (0.085 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 12,522 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit