Star System Generated (Seed: 1766908641)
Star Details
Spectral Class: M8V
Temperature: 2,617 K
Mass: 0.28 sol
Luminosity: 0.01 lux
Habitable Zone (HZ)
Inner Boundary: 0.1 AU
Outer Boundary: 0.14 AU
Physical Limits
Snow Line: 0.48 AU
Max System Radius: 10.6 AU
Planetary System (6 Planets)
Planet 1 - Gas Giant
Semi-Major Axis: 0.78 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 448.3
Radius: 9.3
Gravity: 5.18 G
Time & Orbit
Eccentricity (e): 0.107
Orbit Range: 0.7 AU - 0.86 AU
Year: 476 Days
Day: 5.8 Hours
Environment
Temp: -173 °C
Axial Tilt: 39.8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (44)
Outer Limit: 68,391,114 km
- M1: 116,537 km (0.108 R)
- M2: 182,809 km (0.103 R)
- M3: 260,001 km (0.118 R)
- M4: 360,531 km (0.102 R)
- M5: 464,202 km (0.049 R)
- M6: 678,726 km (0.117 R)
- M7: 899,382 km (0.073 R)
- M8: 1,011,730 km (0.054 R)
- M9: 1,138,440 km (0.099 R)
- M10: 1,218,026 km (0.117 R)
- M11: 1,348,326 km (0.099 R)
- M12: 1,483,412 km (0.047 R)
- M13: 1,638,994 km (0.1 R)
- M14: 1,702,723 km (0.074 R)
- M15: 1,877,004 km (0.064 R)
- M16: 2,149,422 km (0.114 R)
- M17: 2,260,873 km (0.116 R)
- M18: 2,362,150 km (0.09 R)
- M19: 2,471,207 km (0.086 R)
- M20: 2,563,360 km (0.084 R)
- M21: 2,662,842 km (0.082 R)
- M22: 2,732,106 km (0.062 R)
- M23: 2,872,279 km (0.098 R)
- M24: 2,949,920 km (0.099 R)
- M25: 3,008,413 km (0.103 R)
- M26: 3,074,087 km (0.078 R)
- M27: 3,173,420 km (0.093 R)
- M28: 3,246,872 km (0.115 R)
- M29: 3,354,882 km (0.049 R)
- M30: 3,422,949 km (0.11 R)
- M31: 3,491,465 km (0.041 R)
- M32: 3,567,460 km (0.093 R)
- M33: 3,657,967 km (0.078 R)
- M34: 4,027,623 km (0.111 R)
- M35: 4,100,178 km (0.031 R)
- M36: 4,195,023 km (0.098 R)
- M37: 4,320,237 km (0.117 R)
- M38: 4,499,156 km (0.104 R)
- M39: 4,657,730 km (0.105 R)
- M40: 4,941,666 km (0.104 R)
- M41: 5,035,016 km (0.079 R)
- M42: 5,199,723 km (0.103 R)
- M43: 5,302,497 km (0.082 R)
- M44: 5,398,090 km (0.063 R)
Asteroid Belt
Center: 1.11 AU
Composition
Type: Outer System (Icy)
A dense region of planetesimals and debris.
Boundary
Planet 2 - Gas Giant
Semi-Major Axis: 1.44 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 70.2
Radius: 9.1
Gravity: 0.85 G
Time & Orbit
Eccentricity (e): 0.093
Orbit Range: 1.31 AU - 1.57 AU
Year: 1193 Days
Day: 12.5 Hours
Environment
Temp: -193 °C
Axial Tilt: 38.4 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (39)
Outer Limit: 68,391,114 km
- M1: 114,442 km (0.117 R)
- M2: 181,761 km (0.064 R)
- M3: 259,253 km (0.059 R)
- M4: 326,123 km (0.066 R)
- M5: 522,994 km (0.114 R)
- M6: 596,297 km (0.072 R)
- M7: 685,009 km (0.068 R)
- M8: 859,889 km (0.1 R)
- M9: 1,009,636 km (0.109 R)
- M10: 1,094,757 km (0.06 R)
- M11: 1,200,972 km (0.117 R)
- M12: 1,257,968 km (0.12 R)
- M13: 1,394,402 km (0.118 R)
- M14: 1,484,908 km (0.068 R)
- M15: 1,650,663 km (0.051 R)
- M16: 1,811,630 km (0.096 R)
- M17: 1,877,453 km (0.084 R)
- M18: 2,062,955 km (0.105 R)
- M19: 2,149,273 km (0.053 R)
- M20: 2,295,879 km (0.088 R)
- M21: 2,391,472 km (0.092 R)
- M22: 2,537,329 km (0.08 R)
- M23: 2,698,746 km (0.086 R)
- M24: 2,876,468 km (0.071 R)
- M25: 2,999,288 km (0.089 R)
- M26: 3,058,080 km (0.052 R)
- M27: 3,297,137 km (0.104 R)
- M28: 3,371,487 km (0.09 R)
- M29: 3,590,648 km (0.119 R)
- M30: 3,730,223 km (0.043 R)
- M31: 3,857,231 km (0.06 R)
- M32: 3,949,982 km (0.111 R)
- M33: 4,152,089 km (0.058 R)
- M34: 4,225,093 km (0.06 R)
- M35: 4,357,636 km (0.091 R)
- M36: 4,748,386 km (0.069 R)
- M37: 4,824,831 km (0.1 R)
- M38: 5,033,370 km (0.086 R)
- M39: 5,244,752 km (0.033 R)
Planet 3 - Gas Giant
Semi-Major Axis: 2.27 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 631.9
Radius: 12
Gravity: 4.39 G
Time & Orbit
Eccentricity (e): 0.031
Orbit Range: 2.2 AU - 2.34 AU
Year: 2361 Days
Day: 5.3 Hours
Environment
Temp: -208 °C
Axial Tilt: 39.5 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (68)
Outer Limit: 68,391,114 km
- M1: 223,350 km (0.103 R)
- M2: 352,752 km (0.111 R)
- M3: 455,675 km (0.117 R)
- M4: 920,924 km (0.094 R)
- M5: 1,155,494 km (0.112 R)
- M6: 1,238,222 km (0.05 R)
- M7: 1,421,030 km (0.08 R)
- M8: 1,498,971 km (0.1 R)
- M9: 1,694,645 km (0.118 R)
- M10: 1,911,113 km (0.083 R)
- M11: 2,048,144 km (0.098 R)
- M12: 2,162,736 km (0.075 R)
- M13: 2,279,423 km (0.088 R)
- M14: 2,385,039 km (0.071 R)
- M15: 2,492,301 km (0.116 R)
- M16: 2,753,798 km (0.118 R)
- M17: 2,995,548 km (0.112 R)
- M18: 3,170,278 km (0.091 R)
- M19: 3,348,599 km (0.06 R)
- M20: 3,484,434 km (0.072 R)
- M21: 3,576,137 km (0.08 R)
- M22: 3,668,589 km (0.069 R)
- M23: 3,761,938 km (0.117 R)
- M24: 3,919,165 km (0.091 R)
- M25: 4,256,658 km (0.093 R)
- M26: 4,338,488 km (0.07 R)
- M27: 5,080,643 km (0.097 R)
- M28: 5,185,062 km (0.055 R)
- M29: 5,555,766 km (0.066 R)
- M30: 6,230,003 km (0.119 R)
- M31: 6,491,949 km (0.064 R)
- M32: 6,586,345 km (0.11 R)
- M33: 6,757,485 km (0.116 R)
- M34: 6,853,228 km (0.085 R)
- M35: 7,535,993 km (0.105 R)
- M36: 7,635,326 km (0.099 R)
- M37: 7,895,626 km (0.049 R)
- M38: 8,138,573 km (0.031 R)
- M39: 8,220,104 km (0.063 R)
- M40: 8,342,774 km (0.119 R)
- M41: 8,445,697 km (0.091 R)
- M42: 8,923,962 km (0.061 R)
- M43: 9,432,595 km (0.093 R)
- M44: 9,539,707 km (0.095 R)
- M45: 9,755,277 km (0.055 R)
- M46: 10,059,858 km (0.08 R)
- M47: 10,213,196 km (0.084 R)
- M48: 10,544,556 km (0.082 R)
- M49: 10,745,166 km (0.117 R)
- M50: 10,834,626 km (0.073 R)
- M51: 11,422,845 km (0.075 R)
- M52: 11,674,767 km (0.06 R)
- M53: 11,766,920 km (0.116 R)
- M54: 11,905,447 km (0.084 R)
- M55: 11,998,048 km (0.08 R)
- M56: 12,160,961 km (0.053 R)
- M57: 12,277,647 km (0.105 R)
- M58: 12,512,216 km (0.1 R)
- M59: 13,441,369 km (0.046 R)
- M60: 14,024,052 km (0.036 R)
- M61: 14,417,196 km (0.059 R)
- M62: 14,814,079 km (0.077 R)
- M63: 16,411,186 km (0.062 R)
- M64: 16,514,408 km (0.075 R)
- M65: 17,086,171 km (0.116 R)
- M66: 17,243,249 km (0.091 R)
- M67: 17,611,559 km (0.109 R)
- M68: 17,717,325 km (0.038 R)
Planet 4 - Gas Giant
Semi-Major Axis: 2.42 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 822.8
Radius: 8.3
Gravity: 11.94 G
Time & Orbit
Eccentricity (e): 0.011
Orbit Range: 2.39 AU - 2.45 AU
Year: 2599 Days
Day: 12.7 Hours
Environment
Temp: -199 °C
Axial Tilt: 98.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (80)
Outer Limit: 68,391,114 km
- M1: 127,009 km (0.112 R)
- M2: 268,379 km (0.059 R)
- M3: 461,210 km (0.118 R)
- M4: 642,224 km (0.075 R)
- M5: 698,173 km (0.111 R)
- M6: 846,126 km (0.111 R)
- M7: 1,127,220 km (0.117 R)
- M8: 1,208,003 km (0.068 R)
- M9: 1,266,795 km (0.047 R)
- M10: 1,363,136 km (0.109 R)
- M11: 1,524,851 km (0.029 R)
- M12: 1,772,735 km (0.1 R)
- M13: 1,894,657 km (0.092 R)
- M14: 2,219,135 km (0.058 R)
- M15: 2,455,200 km (0.118 R)
- M16: 2,606,892 km (0.081 R)
- M17: 2,714,902 km (0.115 R)
- M18: 3,113,132 km (0.091 R)
- M19: 3,360,866 km (0.046 R)
- M20: 3,580,775 km (0.079 R)
- M21: 3,666,644 km (0.106 R)
- M22: 3,787,968 km (0.091 R)
- M23: 3,857,979 km (0.05 R)
- M24: 3,946,093 km (0.062 R)
- M25: 4,562,585 km (0.098 R)
- M26: 4,749,732 km (0.032 R)
- M27: 5,073,612 km (0.088 R)
- M28: 5,248,043 km (0.083 R)
- M29: 5,562,946 km (0.093 R)
- M30: 5,642,682 km (0.094 R)
- M31: 5,702,671 km (0.105 R)
- M32: 5,783,005 km (0.114 R)
- M33: 5,944,870 km (0.059 R)
- M34: 6,314,676 km (0.106 R)
- M35: 6,418,796 km (0.103 R)
- M36: 6,481,477 km (0.065 R)
- M37: 6,649,625 km (0.068 R)
- M38: 6,969,017 km (0.067 R)
- M39: 7,033,344 km (0.112 R)
- M40: 7,468,225 km (0.098 R)
- M41: 7,578,329 km (0.069 R)
- M42: 8,159,517 km (0.071 R)
- M43: 8,685,652 km (0.051 R)
- M44: 9,269,832 km (0.094 R)
- M45: 10,036,222 km (0.112 R)
- M46: 10,574,774 km (0.067 R)
- M47: 10,897,457 km (0.054 R)
- M48: 10,972,405 km (0.114 R)
- M49: 11,248,563 km (0.063 R)
- M50: 11,884,952 km (0.082 R)
- M51: 12,065,218 km (0.081 R)
- M52: 12,768,926 km (0.039 R)
- M53: 12,927,201 km (0.038 R)
- M54: 13,139,181 km (0.113 R)
- M55: 13,352,208 km (0.097 R)
- M56: 13,432,542 km (0.08 R)
- M57: 14,025,698 km (0.095 R)
- M58: 14,134,456 km (0.119 R)
- M59: 14,188,909 km (0.113 R)
- M60: 14,270,739 km (0.046 R)
- M61: 14,489,900 km (0.108 R)
- M62: 14,627,381 km (0.079 R)
- M63: 14,959,039 km (0.067 R)
- M64: 15,153,816 km (0.119 R)
- M65: 15,489,513 km (0.072 R)
- M66: 15,884,152 km (0.091 R)
- M67: 16,111,242 km (0.117 R)
- M68: 16,168,239 km (0.12 R)
- M69: 16,712,476 km (0.087 R)
- M70: 16,798,943 km (0.082 R)
- M71: 16,914,433 km (0.082 R)
- M72: 17,059,244 km (0.099 R)
- M73: 17,701,318 km (0.063 R)
- M74: 18,500,021 km (0.104 R)
- M75: 19,370,979 km (0.075 R)
- M76: 19,492,154 km (0.095 R)
- M77: 19,857,173 km (0.076 R)
- M78: 20,132,433 km (0.103 R)
- M79: 20,193,768 km (0.084 R)
- M80: 20,532,308 km (0.025 R)
Planet 5 - Ice Giant
Semi-Major Axis: 6.08 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 895.3
Radius: 5.6
Gravity: 28.55 G
Time & Orbit
Eccentricity (e): 0.104
Orbit Range: 5.45 AU - 6.71 AU
Year: 10348 Days
Day: 18.3 Hours
Environment
Temp: -228 °C
Axial Tilt: 14 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (94)
Outer Limit: 68,391,114 km
- M1: 74,500 km (0.109 R)
- M2: 547,079 km (0.049 R)
- M3: 632,799 km (0.099 R)
- M4: 1,373,308 km (0.106 R)
- M5: 1,563,896 km (0.093 R)
- M6: 1,839,755 km (0.035 R)
- M7: 2,076,718 km (0.106 R)
- M8: 2,157,949 km (0.045 R)
- M9: 2,240,228 km (0.083 R)
- M10: 2,379,504 km (0.043 R)
- M11: 2,995,697 km (0.035 R)
- M12: 3,368,944 km (0.103 R)
- M13: 3,496,701 km (0.099 R)
- M14: 4,434,530 km (0.092 R)
- M15: 4,469,386 km (0.085 R)
- M16: 4,504,392 km (0.117 R)
- M17: 4,787,431 km (0.072 R)
- M18: 6,523,514 km (0.077 R)
- M19: 6,642,893 km (0.089 R)
- M20: 6,883,896 km (0.094 R)
- M21: 7,127,740 km (0.086 R)
- M22: 8,259,747 km (0.066 R)
- M23: 8,956,574 km (0.094 R)
- M24: 9,491,387 km (0.091 R)
- M25: 9,536,415 km (0.09 R)
- M26: 9,581,594 km (0.057 R)
- M27: 9,672,101 km (0.117 R)
- M28: 10,266,902 km (0.093 R)
- M29: 10,638,802 km (0.119 R)
- M30: 11,157,308 km (0.113 R)
- M31: 11,204,881 km (0.116 R)
- M32: 11,443,639 km (0.059 R)
- M33: 11,587,701 km (0.084 R)
- M34: 11,829,152 km (0.107 R)
- M35: 12,170,086 km (0.084 R)
- M36: 12,268,073 km (0.099 R)
- M37: 13,211,886 km (0.061 R)
- M38: 14,644,734 km (0.083 R)
- M39: 15,379,559 km (0.074 R)
- M40: 15,804,865 km (0.085 R)
- M41: 16,504,086 km (0.105 R)
- M42: 17,103,674 km (0.113 R)
- M43: 17,433,687 km (0.114 R)
- M44: 17,710,443 km (0.113 R)
- M45: 18,944,775 km (0.059 R)
- M46: 19,572,338 km (0.051 R)
- M47: 21,023,737 km (0.041 R)
- M48: 21,673,291 km (0.06 R)
- M49: 21,911,151 km (0.096 R)
- M50: 22,569,681 km (0.112 R)
- M51: 22,629,819 km (0.091 R)
- M52: 22,871,121 km (0.062 R)
- M53: 23,661,297 km (0.05 R)
- M54: 23,906,189 km (0.117 R)
- M55: 25,832,411 km (0.106 R)
- M56: 27,101,300 km (0.107 R)
- M57: 27,614,570 km (0.049 R)
- M58: 30,694,042 km (0.071 R)
- M59: 31,430,363 km (0.084 R)
- M60: 32,783,925 km (0.114 R)
- M61: 34,294,713 km (0.096 R)
- M62: 34,502,505 km (0.108 R)
- M63: 34,571,918 km (0.11 R)
- M64: 35,058,710 km (0.112 R)
- M65: 35,547,745 km (0.105 R)
- M66: 37,028,315 km (0.063 R)
- M67: 38,241,554 km (0.086 R)
- M68: 38,528,932 km (0.034 R)
- M69: 39,105,781 km (0.094 R)
- M70: 41,220,796 km (0.086 R)
- M71: 41,663,007 km (0.104 R)
- M72: 41,736,908 km (0.036 R)
- M73: 42,329,316 km (0.081 R)
- M74: 43,297,962 km (0.093 R)
- M75: 44,349,186 km (0.115 R)
- M76: 44,802,318 km (0.097 R)
- M77: 45,865,510 km (0.119 R)
- M78: 46,094,395 km (0.115 R)
- M79: 46,400,323 km (0.1 R)
- M80: 46,553,361 km (0.112 R)
- M81: 46,937,080 km (0.082 R)
- M82: 47,321,696 km (0.109 R)
- M83: 47,707,509 km (0.118 R)
- M84: 48,326,844 km (0.102 R)
- M85: 49,260,784 km (0.111 R)
- M86: 49,338,874 km (0.055 R)
- M87: 50,043,629 km (0.117 R)
- M88: 50,279,396 km (0.078 R)
- M89: 50,357,934 km (0.117 R)
- M90: 51,146,614 km (0.069 R)
- M91: 51,463,163 km (0.113 R)
- M92: 52,895,862 km (0.039 R)
- M93: 53,216,002 km (0.113 R)
- M94: 53,296,186 km (0.03 R)
Planet 6 - Ice Giant
Semi-Major Axis: 8.8 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 612.8
Radius: 7
Gravity: 12.51 G
Time & Orbit
Eccentricity (e): 0.007
Orbit Range: 8.74 AU - 8.86 AU
Year: 18019 Days
Day: 18.3 Hours
Environment
Temp: -243 °C
Axial Tilt: 20.6 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (98)
Outer Limit: 68,391,114 km
- M1: 459,864 km (0.102 R)
- M2: 515,215 km (0.098 R)
- M3: 696,079 km (0.06 R)
- M4: 896,989 km (0.094 R)
- M5: 992,283 km (0.068 R)
- M6: 1,271,582 km (0.069 R)
- M7: 1,462,020 km (0.055 R)
- M8: 2,411,069 km (0.108 R)
- M9: 3,664,998 km (0.111 R)
- M10: 4,665,060 km (0.098 R)
- M11: 5,044,590 km (0.119 R)
- M12: 5,566,238 km (0.105 R)
- M13: 5,968,656 km (0.079 R)
- M14: 7,183,391 km (0.061 R)
- M15: 7,376,970 km (0.119 R)
- M16: 7,719,699 km (0.105 R)
- M17: 8,017,698 km (0.103 R)
- M18: 8,067,813 km (0.105 R)
- M19: 8,218,458 km (0.081 R)
- M20: 8,573,903 km (0.086 R)
- M21: 8,779,151 km (0.099 R)
- M22: 8,882,523 km (0.099 R)
- M23: 9,142,375 km (0.117 R)
- M24: 10,315,820 km (0.115 R)
- M25: 10,534,084 km (0.1 R)
- M26: 11,086,848 km (0.099 R)
- M27: 11,876,425 km (0.093 R)
- M28: 12,800,791 km (0.071 R)
- M29: 13,568,826 km (0.049 R)
- M30: 14,109,174 km (0.108 R)
- M31: 14,290,935 km (0.092 R)
- M32: 14,412,558 km (0.047 R)
- M33: 16,276,996 km (0.098 R)
- M34: 16,979,508 km (0.059 R)
- M35: 17,431,593 km (0.065 R)
- M36: 17,691,743 km (0.064 R)
- M37: 18,084,438 km (0.115 R)
- M38: 18,479,975 km (0.111 R)
- M39: 19,078,665 km (0.032 R)
- M40: 19,481,233 km (0.1 R)
- M41: 20,022,478 km (0.112 R)
- M42: 20,500,144 km (0.099 R)
- M43: 20,568,660 km (0.115 R)
- M44: 20,981,401 km (0.105 R)
- M45: 21,396,983 km (0.061 R)
- M46: 21,885,271 km (0.116 R)
- M47: 22,447,759 km (0.044 R)
- M48: 22,872,916 km (0.11 R)
- M49: 23,515,289 km (0.059 R)
- M50: 23,658,903 km (0.059 R)
- M51: 26,292,873 km (0.117 R)
- M52: 26,591,171 km (0.081 R)
- M53: 26,740,769 km (0.075 R)
- M54: 27,115,960 km (0.092 R)
- M55: 27,266,606 km (0.063 R)
- M56: 27,871,729 km (0.054 R)
- M57: 28,099,716 km (0.058 R)
- M58: 29,558,445 km (0.108 R)
- M59: 29,791,070 km (0.101 R)
- M60: 31,752,597 km (0.061 R)
- M61: 32,309,251 km (0.119 R)
- M62: 33,836,495 km (0.082 R)
- M63: 34,486,498 km (0.094 R)
- M64: 35,387,077 km (0.113 R)
- M65: 35,799,070 km (0.101 R)
- M66: 36,461,339 km (0.09 R)
- M67: 36,877,371 km (0.072 R)
- M68: 37,378,674 km (0.09 R)
- M69: 37,462,448 km (0.072 R)
- M70: 38,303,637 km (0.072 R)
- M71: 38,811,223 km (0.114 R)
- M72: 40,347,593 km (0.102 R)
- M73: 40,433,462 km (0.062 R)
- M74: 41,036,790 km (0.081 R)
- M75: 41,382,810 km (0.086 R)
- M76: 42,077,842 km (0.117 R)
- M77: 42,864,278 km (0.108 R)
- M78: 44,274,537 km (0.089 R)
- M79: 44,807,255 km (0.082 R)
- M80: 45,074,437 km (0.073 R)
- M81: 45,699,906 km (0.105 R)
- M82: 45,879,124 km (0.119 R)
- M83: 48,595,372 km (0.097 R)
- M84: 51,923,027 km (0.104 R)
- M85: 52,672,513 km (0.059 R)
- M86: 54,846,918 km (0.101 R)
- M87: 55,228,093 km (0.041 R)
- M88: 55,993,137 km (0.077 R)
- M89: 56,665,280 km (0.085 R)
- M90: 57,823,915 km (0.056 R)
- M91: 58,892,792 km (0.114 R)
- M92: 59,185,406 km (0.103 R)
- M93: 59,576,305 km (0.033 R)
- M94: 66,860,076 km (0.05 R)
- M95: 67,777,260 km (0.078 R)
- M96: 67,879,435 km (0.091 R)
- M97: 68,083,936 km (0.049 R)
- M98: 68,186,261 km (0.116 R)
Kuiper Belt
Range: 30 - 49 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 540 - 18,037 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.