🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.2

Radius: 13.3

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.82 AU - 0.86 AU

Year: 531 Days

Day: 13.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,768,634 km

• M1: 165,605 km (0.103 R)
• M2: 782,247 km (0.118 R)
• M3: 1,639,443 km (0.067 R)
• M4: 2,269,848 km (0.105 R)
• M5: 2,979,840 km (0.106 R)
• M6: 3,400,210 km (0.104 R)
• M7: 3,900,615 km (0.104 R)
• M8: 4,362,274 km (0.097 R)
• M9: 4,813,760 km (0.072 R)
• M10: 5,636,249 km (0.071 R)
• M11: 6,228,956 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932

Radius: 11.5

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.66 AU - 1.08 AU

Year: 560 Days

Day: 6.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,768,634 km

• M1: 150,047 km (0.055 R)
• M2: 514,168 km (0.039 R)
• M3: 876,344 km (0.045 R)
• M4: 1,694,645 km (0.103 R)
• M5: 2,134,462 km (0.114 R)
• M6: 2,716,398 km (0.081 R)
• M7: 4,863,576 km (0.107 R)
• M8: 5,670,208 km (0.071 R)
• M9: 6,282,363 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.4

Radius: 12.2

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.94 AU - 1.44 AU

Year: 896 Days

Day: 10.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,768,634 km

• M1: 151,692 km (0.097 R)
• M2: 603,777 km (0.036 R)
• M3: 1,040,304 km (0.074 R)
• M4: 1,464,114 km (0.097 R)
• M5: 1,930,411 km (0.094 R)
• M6: 2,334,176 km (0.087 R)
• M7: 2,855,075 km (0.097 R)
• M8: 3,425,193 km (0.107 R)
• M9: 4,243,942 km (0.078 R)
• M10: 4,657,281 km (0.093 R)
• M11: 6,416,851 km (0.119 R)
• M12: 7,031,250 km (0.028 R)
• M13: 8,026,225 km (0.058 R)
• M14: 8,583,627 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.1

Radius: 11.1

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.52 AU - 1.82 AU

Year: 1490 Days

Day: 14.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,768,634 km

• M1: 138,677 km (0.038 R)
• M2: 822,489 km (0.114 R)
• M3: 1,224,758 km (0.088 R)
• M4: 2,351,379 km (0.104 R)
• M5: 3,585,861 km (0.107 R)
• M6: 3,966,139 km (0.083 R)
• M7: 4,634,991 km (0.096 R)
• M8: 5,006,891 km (0.069 R)
• M9: 6,504,815 km (0.077 R)
• M10: 7,648,341 km (0.049 R)
• M11: 9,686,761 km (0.079 R)
• M12: 11,002,026 km (0.064 R)
• M13: 12,620,076 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 9.7

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.92 AU - 1.98 AU

Year: 1880 Days

Day: 10.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,768,634 km

• M1: 121,773 km (0.116 R)
• M2: 431,291 km (0.12 R)
• M3: 951,592 km (0.051 R)
• M4: 1,790,687 km (0.065 R)
• M5: 2,200,136 km (0.062 R)
• M6: 2,684,983 km (0.118 R)
• M7: 3,061,520 km (0.111 R)
• M8: 4,132,791 km (0.101 R)
• M9: 4,617,488 km (0.099 R)
• M10: 6,326,344 km (0.066 R)
• M11: 7,100,214 km (0.054 R)
• M12: 8,835,549 km (0.073 R)
• M13: 10,327,489 km (0.077 R)
• M14: 12,017,646 km (0.054 R)
• M15: 13,361,035 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.1

Radius: 10.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.92 AU - 5.38 AU

Year: 6921 Days

Day: 8.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,768,634 km

• M1: 135,685 km (0.094 R)
• M2: 692,937 km (0.09 R)
• M3: 1,230,742 km (0.081 R)
• M4: 2,467,467 km (0.064 R)
• M5: 3,462,592 km (0.076 R)
• M6: 4,290,916 km (0.078 R)
• M7: 5,078,100 km (0.095 R)
• M8: 5,723,016 km (0.108 R)
• M9: 6,421,788 km (0.075 R)
• M10: 7,176,509 km (0.117 R)
• M11: 8,655,583 km (0.097 R)
• M12: 10,213,196 km (0.103 R)
• M13: 11,654,721 km (0.089 R)
• M14: 12,078,233 km (0.109 R)
• M15: 12,866,314 km (0.095 R)
• M16: 13,273,071 km (0.083 R)
• M17: 13,875,801 km (0.081 R)
• M18: 14,642,490 km (0.057 R)
• M19: 17,549,775 km (0.096 R)
• M20: 20,028,612 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 304.5

Radius: 7.5

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.71 AU - 6.55 AU

Year: 9221 Days

Day: 21.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,768,634 km

• M1: 110,254 km (0.025 R)
• M2: 361,578 km (0.045 R)
• M3: 893,398 km (0.119 R)
• M4: 1,279,810 km (0.067 R)
• M5: 3,479,497 km (0.072 R)
• M6: 4,259,949 km (0.113 R)
• M7: 5,750,093 km (0.096 R)
• M8: 6,195,596 km (0.075 R)
• M9: 8,572,108 km (0.086 R)
• M10: 9,939,881 km (0.111 R)
• M11: 13,594,258 km (0.116 R)
• M12: 16,119,619 km (0.087 R)
• M13: 19,360,059 km (0.066 R)
• M14: 23,888,686 km (0.063 R)
• M15: 25,122,120 km (0.113 R)
• M16: 27,537,078 km (0.101 R)
• M17: 30,197,078 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 354.2

Radius: 5.7

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.32 AU - 6.96 AU

Year: 10502 Days

Day: 17.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,768,634 km

• M1: 70,909 km (0.059 R)
• M2: 338,839 km (0.113 R)
• M3: 932,593 km (0.061 R)
• M4: 1,185,563 km (0.113 R)
• M5: 2,265,361 km (0.049 R)
• M6: 4,486,440 km (0.099 R)
• M7: 5,878,299 km (0.094 R)
• M8: 6,708,417 km (0.108 R)
• M9: 7,852,691 km (0.081 R)
• M10: 10,668,572 km (0.026 R)
• M11: 11,323,362 km (0.114 R)
• M12: 13,448,549 km (0.12 R)
• M13: 15,443,138 km (0.103 R)
• M14: 18,683,876 km (0.059 R)
• M15: 21,550,471 km (0.041 R)
• M16: 27,202,877 km (0.113 R)
• M17: 31,883,645 km (0.031 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 924.8

Radius: 6.8

Gravity: 20 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 7.31 AU - 8.35 AU

Year: 15124 Days

Day: 16.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 43,768,634 km

• M1: 84,972 km (0.12 R)
• M2: 324,627 km (0.108 R)
• M3: 633,996 km (0.082 R)
• M4: 857,645 km (0.105 R)
• M5: 1,472,043 km (0.079 R)
• M6: 2,433,808 km (0.119 R)
• M7: 2,873,326 km (0.114 R)
• M8: 3,203,489 km (0.064 R)
• M9: 3,474,560 km (0.091 R)
• M10: 4,156,726 km (0.084 R)
• M11: 4,784,738 km (0.04 R)
• M12: 5,031,425 km (0.115 R)
• M13: 5,588,827 km (0.057 R)
• M14: 6,651,570 km (0.056 R)
• M15: 7,509,065 km (0.105 R)
• M16: 7,891,288 km (0.087 R)
• M17: 8,336,790 km (0.079 R)
• M18: 8,851,407 km (0.105 R)
• M19: 9,551,674 km (0.119 R)
• M20: 12,262,238 km (0.083 R)
• M21: 13,546,686 km (0.078 R)
• M22: 14,113,362 km (0.112 R)
• M23: 20,402,008 km (0.088 R)
• M24: 20,679,063 km (0.104 R)
• M25: 21,620,782 km (0.11 R)
• M26: 22,590,774 km (0.072 R)
• M27: 28,564,517 km (0.118 R)
• M28: 31,173,653 km (0.082 R)
• M29: 31,664,633 km (0.05 R)
• M30: 38,805,388 km (0.096 R)
• M31: 39,516,278 km (0.105 R)
• M32: 41,849,406 km (0.04 R)
• M33: 43,049,779 km (0.059 R)
• M34: 47,593,665 km (0.115 R)
• M35: 58,731,376 km (0.096 R)
• M36: 63,319,094 km (0.038 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.3

Radius: 7.8

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 9.36 AU - 10.9 AU

Year: 22255 Days

Day: 21.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,768,634 km

• M1: 97,239 km (0.034 R)
• M2: 360,232 km (0.1 R)
• M3: 755,170 km (0.102 R)
• M4: 2,203,277 km (0.06 R)
• M5: 3,309,554 km (0.1 R)
• M6: 4,631,101 km (0.111 R)
• M7: 10,454,946 km (0.071 R)
• M8: 10,965,075 km (0.05 R)
• M9: 12,313,102 km (0.118 R)
• M10: 13,114,497 km (0.03 R)
• M11: 14,948,418 km (0.119 R)
• M12: 22,963,722 km (0.11 R)
• M13: 23,219,983 km (0.099 R)
• M14: 25,067,816 km (0.086 R)
• M15: 25,613,399 km (0.101 R)
• M16: 31,405,979 km (0.066 R)
• M17: 34,437,280 km (0.078 R)
• M18: 39,098,301 km (0.111 R)
• M19: 39,954,899 km (0.09 R)
• M20: 43,507,100 km (0.095 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: 369 - 16,195 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit