🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.6

Radius: 12.2

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.55 AU - 0.57 AU

Year: 295 Days

Day: 6.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,373,285 km

• M1: 152,739 km (0.109 R)
• M2: 573,259 km (0.094 R)
• M3: 1,048,681 km (0.047 R)
• M4: 1,432,250 km (0.043 R)
• M5: 1,998,179 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.2

Radius: 11.9

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.97 AU - 0.97 AU

Year: 672 Days

Day: 13 Hours

Environment

Temp: -172 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 61,373,285 km

• M1: 147,952 km (0.075 R)
• M2: 535,710 km (0.051 R)
• M3: 932,294 km (0.084 R)
• M4: 1,504,955 km (0.113 R)
• M5: 2,730,909 km (0.051 R)
• M6: 3,546,666 km (0.101 R)
• M7: 3,951,777 km (0.113 R)
• M8: 4,668,351 km (0.038 R)
• M9: 5,621,140 km (0.045 R)
• M10: 6,053,179 km (0.083 R)
• M11: 6,570,787 km (0.116 R)
• M12: 7,718,951 km (0.032 R)
• M13: 8,581,383 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.4

Radius: 10.3

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.61 AU - 3.81 AU

Year: 4043 Days

Day: 11.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,373,285 km

• M1: 129,552 km (0.078 R)
• M2: 525,537 km (0.096 R)
• M3: 952,490 km (0.112 R)
• M4: 1,463,965 km (0.076 R)
• M5: 1,893,161 km (0.114 R)
• M6: 2,745,719 km (0.109 R)
• M7: 3,118,368 km (0.072 R)
• M8: 3,836,437 km (0.105 R)
• M9: 4,189,339 km (0.112 R)
• M10: 4,986,695 km (0.074 R)
• M11: 5,796,319 km (0.037 R)
• M12: 6,203,225 km (0.085 R)
• M13: 7,954,268 km (0.079 R)
• M14: 8,494,167 km (0.072 R)
• M15: 9,972,044 km (0.112 R)
• M16: 10,815,328 km (0.041 R)
• M17: 11,478,495 km (0.098 R)
• M18: 13,279,953 km (0.11 R)
• M19: 14,300,360 km (0.083 R)
• M20: 15,592,885 km (0.049 R)
• M21: 22,955,045 km (0.095 R)
• M22: 23,316,175 km (0.115 R)
• M23: 24,273,003 km (0.104 R)
• M24: 24,723,442 km (0.104 R)
• M25: 26,343,736 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.1

Radius: 10.9

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.14 AU - 4.38 AU

Year: 6180 Days

Day: 13.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 67.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,373,285 km

• M1: 135,536 km (0.054 R)
• M2: 674,238 km (0.113 R)
• M3: 1,379,292 km (0.073 R)
• M4: 1,789,639 km (0.096 R)
• M5: 2,329,239 km (0.076 R)
• M6: 2,771,301 km (0.093 R)
• M7: 4,056,496 km (0.048 R)
• M8: 4,992,979 km (0.06 R)
• M9: 5,382,831 km (0.09 R)
• M10: 6,255,734 km (0.115 R)
• M11: 8,091,450 km (0.102 R)
• M12: 9,277,162 km (0.075 R)
• M13: 9,697,084 km (0.096 R)
• M14: 16,805,526 km (0.07 R)
• M15: 17,304,285 km (0.078 R)
• M16: 18,528,743 km (0.105 R)
• M17: 21,804,488 km (0.064 R)
• M18: 22,398,092 km (0.086 R)
• M19: 25,775,414 km (0.106 R)
• M20: 26,188,902 km (0.057 R)
• M21: 27,199,436 km (0.088 R)
• M22: 28,941,354 km (0.07 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 151.7

Radius: 3.5

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 5.38 AU - 7.22 AU

Year: 11115 Days

Day: 16.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,373,285 km

• M1: 43,683 km (0.092 R)
• M2: 374,443 km (0.063 R)
• M3: 907,909 km (0.094 R)
• M4: 1,190,949 km (0.085 R)
• M5: 2,894,120 km (0.066 R)
• M6: 3,188,080 km (0.087 R)
• M7: 3,501,637 km (0.058 R)
• M8: 3,835,390 km (0.089 R)
• M9: 5,213,486 km (0.032 R)
• M10: 12,382,066 km (0.094 R)
• M11: 13,048,525 km (0.103 R)
• M12: 17,428,900 km (0.092 R)
• M13: 25,525,436 km (0.098 R)
• M14: 29,921,818 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 146.7

Radius: 5.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.06 AU - 7.74 AU

Year: 11381 Days

Day: 19.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 61,373,285 km

• M1: 84,523 km (0.113 R)
• M2: 366,365 km (0.083 R)
• M3: 584,479 km (0.065 R)
• M4: 874,100 km (0.081 R)
• M5: 1,310,029 km (0.089 R)
• M6: 1,516,324 km (0.065 R)
• M7: 1,937,592 km (0.12 R)
• M8: 2,400,597 km (0.113 R)
• M9: 2,605,247 km (0.109 R)
• M10: 3,168,782 km (0.085 R)
• M11: 4,690,192 km (0.049 R)
• M12: 5,404,971 km (0.083 R)
• M13: 6,381,396 km (0.098 R)
• M14: 7,651,033 km (0.117 R)
• M15: 7,946,190 km (0.083 R)
• M16: 8,172,532 km (0.114 R)
• M17: 9,966,509 km (0.099 R)
• M18: 11,958,255 km (0.113 R)
• M19: 12,205,840 km (0.119 R)
• M20: 16,161,357 km (0.086 R)
• M21: 19,429,771 km (0.052 R)
• M22: 20,681,158 km (0.047 R)
• M23: 22,282,603 km (0.066 R)
• M24: 24,200,597 km (0.095 R)
• M25: 25,812,065 km (0.101 R)
• M26: 27,236,985 km (0.105 R)
• M27: 29,068,661 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.2

Radius: 4.8

Gravity: 38.9 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.59 AU - 8.03 AU

Year: 13893 Days

Day: 18.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,373,285 km

• M1: 59,989 km (0.093 R)
• M2: 209,736 km (0.062 R)
• M3: 558,299 km (0.107 R)
• M4: 782,846 km (0.094 R)
• M5: 1,153,848 km (0.111 R)
• M6: 1,401,134 km (0.093 R)
• M7: 1,768,097 km (0.066 R)
• M8: 2,668,228 km (0.047 R)
• M9: 2,831,738 km (0.092 R)
• M10: 4,296,152 km (0.066 R)
• M11: 4,925,809 km (0.116 R)
• M12: 6,162,086 km (0.09 R)
• M13: 10,385,533 km (0.103 R)
• M14: 10,732,899 km (0.1 R)
• M15: 14,005,203 km (0.072 R)
• M16: 22,813,226 km (0.108 R)
• M17: 27,461,232 km (0.066 R)
• M18: 32,702,843 km (0.12 R)
• M19: 34,078,395 km (0.089 R)
• M20: 37,078,431 km (0.103 R)
• M21: 46,498,908 km (0.11 R)
• M22: 63,335,251 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 428.2

Radius: 7.2

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.97 AU - 8.71 AU

Year: 13978 Days

Day: 24 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 61,373,285 km

• M1: 89,609 km (0.054 R)
• M2: 336,446 km (0.099 R)
• M3: 569,968 km (0.076 R)
• M4: 2,029,744 km (0.096 R)
• M5: 2,436,351 km (0.067 R)
• M6: 3,563,421 km (0.083 R)
• M7: 5,433,843 km (0.116 R)
• M8: 6,218,185 km (0.091 R)
• M9: 8,054,349 km (0.103 R)
• M10: 9,661,778 km (0.049 R)
• M11: 10,434,751 km (0.059 R)
• M12: 11,359,864 km (0.076 R)
• M13: 13,310,022 km (0.083 R)
• M14: 13,750,587 km (0.062 R)
• M15: 17,633,251 km (0.067 R)
• M16: 18,011,883 km (0.027 R)
• M17: 18,785,453 km (0.117 R)
• M18: 20,233,262 km (0.079 R)
• M19: 20,481,594 km (0.063 R)
• M20: 21,068,915 km (0.08 R)
• M21: 21,927,457 km (0.071 R)
• M22: 23,440,191 km (0.099 R)
• M23: 26,970,701 km (0.086 R)
• M24: 35,183,624 km (0.088 R)
• M25: 36,390,879 km (0.112 R)
• M26: 38,253,073 km (0.074 R)
• M27: 47,642,434 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.1

Radius: 7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.28 AU - 10.2 AU

Year: 19743 Days

Day: 15.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,373,285 km

• M1: 88,113 km (0.057 R)
• M2: 383,868 km (0.069 R)
• M3: 866,471 km (0.119 R)
• M4: 1,374,655 km (0.026 R)
• M5: 1,605,933 km (0.098 R)
• M6: 2,148,225 km (0.099 R)
• M7: 2,592,382 km (0.055 R)
• M8: 6,252,742 km (0.07 R)
• M9: 7,156,463 km (0.078 R)
• M10: 8,103,118 km (0.102 R)
• M11: 12,401,065 km (0.114 R)
• M12: 13,240,459 km (0.072 R)
• M13: 13,938,782 km (0.095 R)
• M14: 17,046,378 km (0.086 R)
• M15: 18,580,953 km (0.075 R)
• M16: 20,129,590 km (0.101 R)
• M17: 23,397,406 km (0.09 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 327.9

Radius: 7.3

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.93 AU - 10.29 AU

Year: 20941 Days

Day: 15.4 Hours

Environment

Temp: -243 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,373,285 km

• M1: 90,956 km (0.103 R)
• M2: 491,579 km (0.076 R)
• M3: 1,083,238 km (0.087 R)
• M4: 2,273,140 km (0.108 R)
• M5: 2,607,192 km (0.092 R)
• M6: 2,926,284 km (0.039 R)
• M7: 3,453,467 km (0.081 R)
• M8: 4,631,101 km (0.106 R)
• M9: 5,275,569 km (0.087 R)
• M10: 5,527,492 km (0.027 R)
• M11: 7,169,029 km (0.116 R)
• M12: 7,568,755 km (0.057 R)
• M13: 7,797,191 km (0.109 R)
• M14: 8,510,324 km (0.042 R)
• M15: 8,907,955 km (0.113 R)
• M16: 12,234,263 km (0.059 R)
• M17: 19,530,451 km (0.073 R)
• M18: 20,135,275 km (0.069 R)
• M19: 22,024,397 km (0.059 R)
• M20: 26,360,192 km (0.098 R)
• M21: 28,949,432 km (0.109 R)
• M22: 34,252,228 km (0.091 R)
• M23: 39,891,469 km (0.106 R)
• M24: 44,025,307 km (0.029 R)
• M25: 54,140,367 km (0.081 R)
• M26: 58,478,556 km (0.074 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 11,926 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit