🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.42 AU - 0.62 AU

Year: 242 Days

Day: 23.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.47 AU - 0.77 AU

Year: 315 Days

Day: 26.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,545,440 km

• M1: 539,899 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933

Radius: 8.4

Gravity: 13.22 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.01 AU - 1.41 AU

Year: 859 Days

Day: 7.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,545,440 km

• M1: 104,419 km (0.099 R)
• M2: 406,607 km (0.118 R)
• M3: 759,957 km (0.109 R)
• M4: 1,195,287 km (0.11 R)
• M5: 1,479,224 km (0.105 R)
• M6: 1,780,813 km (0.08 R)
• M7: 2,218,836 km (0.12 R)
• M8: 2,617,215 km (0.063 R)
• M9: 3,062,568 km (0.05 R)
• M10: 3,325,112 km (0.12 R)
• M11: 3,879,970 km (0.034 R)
• M12: 4,583,080 km (0.087 R)
• M13: 5,897,896 km (0.107 R)
• M14: 6,197,092 km (0.087 R)
• M15: 6,484,021 km (0.061 R)
• M16: 7,252,505 km (0.099 R)
• M17: 8,476,963 km (0.09 R)
• M18: 9,251,880 km (0.089 R)
• M19: 9,744,955 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.1

Radius: 11.4

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.94 AU - 2.26 AU

Year: 1965 Days

Day: 10.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,545,440 km

• M1: 141,819 km (0.047 R)
• M2: 496,665 km (0.108 R)
• M3: 1,044,343 km (0.076 R)
• M4: 1,520,513 km (0.093 R)
• M5: 2,024,209 km (0.108 R)
• M6: 2,623,947 km (0.058 R)
• M7: 2,981,486 km (0.108 R)
• M8: 3,470,521 km (0.115 R)
• M9: 4,142,664 km (0.111 R)
• M10: 4,510,226 km (0.061 R)
• M11: 6,926,232 km (0.104 R)
• M12: 7,334,784 km (0.051 R)
• M13: 7,875,580 km (0.062 R)
• M14: 8,381,669 km (0.059 R)
• M15: 9,197,726 km (0.032 R)
• M16: 10,734,545 km (0.104 R)
• M17: 12,756,210 km (0.047 R)
• M18: 13,123,324 km (0.049 R)
• M19: 14,266,850 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 11.1

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.13 AU - 2.33 AU

Year: 2150 Days

Day: 12.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,545,440 km

• M1: 138,228 km (0.106 R)
• M2: 539,749 km (0.058 R)
• M3: 1,019,809 km (0.115 R)
• M4: 1,412,353 km (0.113 R)
• M5: 1,989,801 km (0.11 R)
• M6: 2,514,740 km (0.106 R)
• M7: 3,265,422 km (0.098 R)
• M8: 3,638,220 km (0.073 R)
• M9: 4,642,471 km (0.078 R)
• M10: 5,092,611 km (0.114 R)
• M11: 5,473,636 km (0.063 R)
• M12: 5,924,973 km (0.062 R)
• M13: 7,460,446 km (0.079 R)
• M14: 8,800,394 km (0.074 R)
• M15: 9,280,902 km (0.064 R)
• M16: 10,331,977 km (0.102 R)
• M17: 15,786,315 km (0.066 R)
• M18: 17,981,365 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.6

Radius: 11.3

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.65 AU - 2.79 AU

Year: 2896 Days

Day: 6.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,545,440 km

• M1: 144,362 km (0.039 R)
• M2: 612,304 km (0.108 R)
• M3: 1,010,384 km (0.109 R)
• M4: 1,543,102 km (0.031 R)
• M5: 1,938,489 km (0.076 R)
• M6: 2,536,581 km (0.086 R)
• M7: 3,218,449 km (0.111 R)
• M8: 3,573,893 km (0.099 R)
• M9: 4,755,118 km (0.088 R)
• M10: 5,448,654 km (0.101 R)
• M11: 9,098,094 km (0.099 R)
• M12: 10,568,940 km (0.071 R)
• M13: 11,275,940 km (0.066 R)
• M14: 12,692,033 km (0.059 R)
• M15: 14,025,698 km (0.102 R)
• M16: 14,574,273 km (0.099 R)
• M17: 15,085,449 km (0.056 R)
• M18: 15,608,593 km (0.115 R)
• M19: 19,248,160 km (0.115 R)
• M20: 22,323,892 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.2

Radius: 11.7

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.56 AU - 2.98 AU

Year: 2977 Days

Day: 6.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,545,440 km

• M1: 145,559 km (0.065 R)
• M2: 642,224 km (0.106 R)
• M3: 1,173,595 km (0.1 R)
• M4: 1,828,236 km (0.116 R)
• M5: 2,634,718 km (0.103 R)
• M6: 3,282,626 km (0.106 R)
• M7: 4,519,800 km (0.112 R)
• M8: 5,398,838 km (0.059 R)
• M9: 6,330,234 km (0.111 R)
• M10: 6,988,165 km (0.102 R)
• M11: 7,559,928 km (0.066 R)
• M12: 8,196,916 km (0.061 R)
• M13: 8,833,305 km (0.1 R)
• M14: 9,200,867 km (0.11 R)
• M15: 10,733,198 km (0.043 R)
• M16: 11,495,250 km (0.08 R)
• M17: 11,889,590 km (0.094 R)
• M18: 12,566,969 km (0.065 R)
• M19: 13,704,212 km (0.103 R)
• M20: 14,960,385 km (0.065 R)
• M21: 16,128,146 km (0.116 R)
• M22: 16,623,016 km (0.078 R)
• M23: 21,345,971 km (0.069 R)
• M24: 22,482,765 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.1

Radius: 8.7

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.66 AU - 3.14 AU

Year: 3189 Days

Day: 8.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,545,440 km

• M1: 108,159 km (0.087 R)
• M2: 484,697 km (0.082 R)
• M3: 848,519 km (0.11 R)
• M4: 1,561,802 km (0.102 R)
• M5: 1,990,848 km (0.114 R)
• M6: 2,342,104 km (0.04 R)
• M7: 2,812,141 km (0.07 R)
• M8: 4,265,185 km (0.094 R)
• M9: 4,651,297 km (0.086 R)
• M10: 5,543,349 km (0.061 R)
• M11: 6,434,504 km (0.111 R)
• M12: 7,417,960 km (0.105 R)
• M13: 8,565,226 km (0.104 R)
• M14: 9,536,116 km (0.106 R)
• M15: 10,048,190 km (0.096 R)
• M16: 11,008,309 km (0.051 R)
• M17: 11,571,994 km (0.104 R)
• M18: 12,453,424 km (0.082 R)
• M19: 14,067,735 km (0.108 R)
• M20: 14,587,588 km (0.097 R)
• M21: 17,327,622 km (0.099 R)
• M22: 18,368,075 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.7

Radius: 6.4

Gravity: 16.25 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 5.4 AU - 7.22 AU

Year: 10234 Days

Day: 16.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,545,440 km

• M1: 79,736 km (0.095 R)
• M2: 394,340 km (0.1 R)
• M3: 620,682 km (0.104 R)
• M4: 1,006,195 km (0.094 R)
• M5: 1,327,980 km (0.056 R)
• M6: 2,005,210 km (0.106 R)
• M7: 2,700,242 km (0.037 R)
• M8: 4,950,792 km (0.114 R)
• M9: 5,918,092 km (0.108 R)
• M10: 6,279,071 km (0.109 R)
• M11: 7,617,524 km (0.077 R)
• M12: 8,264,534 km (0.105 R)
• M13: 10,845,546 km (0.08 R)
• M14: 11,552,097 km (0.116 R)
• M15: 11,775,596 km (0.062 R)
• M16: 14,428,415 km (0.06 R)
• M17: 18,499,871 km (0.108 R)
• M18: 18,882,991 km (0.059 R)
• M19: 20,387,647 km (0.064 R)
• M20: 22,748,151 km (0.07 R)
• M21: 24,541,680 km (0.089 R)
• M22: 29,746,639 km (0.114 R)
• M23: 32,107,443 km (0.119 R)
• M24: 47,641,835 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.3

Radius: 6.5

Gravity: 23.65 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.45 AU - 8.99 AU

Year: 13850 Days

Day: 19.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 67,545,440 km

• M1: 81,980 km (0.052 R)
• M2: 286,480 km (0.094 R)
• M3: 679,174 km (0.085 R)
• M4: 967,599 km (0.104 R)
• M5: 1,726,210 km (0.086 R)
• M6: 3,202,292 km (0.065 R)
• M7: 3,812,053 km (0.05 R)
• M8: 4,366,313 km (0.113 R)
• M9: 5,788,690 km (0.114 R)
• M10: 6,310,936 km (0.079 R)
• M11: 6,647,531 km (0.12 R)
• M12: 9,899,041 km (0.078 R)
• M13: 12,773,115 km (0.06 R)
• M14: 14,149,116 km (0.081 R)
• M15: 15,469,467 km (0.053 R)
• M16: 15,850,343 km (0.027 R)
• M17: 16,472,820 km (0.095 R)
• M18: 17,030,670 km (0.088 R)
• M19: 17,273,468 km (0.107 R)
• M20: 18,184,070 km (0.113 R)
• M21: 19,565,008 km (0.115 R)
• M22: 20,737,257 km (0.087 R)
• M23: 23,023,411 km (0.093 R)
• M24: 29,813,210 km (0.069 R)
• M25: 31,973,254 km (0.104 R)
• M26: 33,343,570 km (0.115 R)
• M27: 39,498,924 km (0.113 R)
• M28: 42,992,034 km (0.085 R)
• M29: 43,442,773 km (0.063 R)
• M30: 43,744,961 km (0.112 R)
• M31: 47,002,903 km (0.078 R)
• M32: 57,740,889 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 14,353 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit