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Table 1
Spectral type definitions.
| Lum. class: | I | I | I/III | III | III/V | V | V | I | I | I/III | III | III/V | V | V |
| Sp. type | L1 | L2 | L3 | L4 | L5 | L6 | L7 | Teff1 | Teff2 | Teff3 | Teff4 | Teff5 | Teff6 | Teff7 |
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| Milky Way, z = 0.02 | ||||||||||||||
| 2.0 | 6.45 | 6.08 | 6.07 | 6.06 | 6.06 | 6.05 | 5.93 | 43 182.0 | 45 070.5 | 45 277.5 | 45 484.5 | 46 482.0 | 47 479.5 | 50 906.1 |
| 2.0/2.5 | 6.43 | 6.05 | 6.03 | 6.01 | 5.99 | 5.97 | 5.84 | 42 128.0 | 44 063.0 | 44 265.2 | 44 467.5 | 45 479.0 | 46 490.5 | 50 119.0 |
| 2.5/3.0 | 6.41 | 6.02 | 5.98 | 5.95 | 5.92 | 5.88 | 5.71 | 41198.0 | 43 055.0 | 43 252.8 | 43 450.5 | 44 378.2 | 45 306.0 | 48 459.0 |
| 3.0/3.5 | 6.38 | 5.99 | 5.94 | 5.90 | 5.85 | 5.80 | 5.61 | 40221.0 | 42 089.0 | 42 333.5 | 42 578.0 | 43 447.5 | 44 317.0 | 47 698.0 |
| 3.5/4.0 | 6.35 | 5.96 | 5.90 | 5.85 | 5.79 | 5.72 | 5.50 | 38 993.0 | 41 164.5 | 41 507.2 | 41 850.0 | 42 784.2 | 43 718.5 | 46 767.0 |
| 4.0/4.5 | 6.33 | 5.93 | 5.86 | 5.79 | 5.72 | 5.64 | 5.40 | 37 883.0 | 40 156.5 | 40 574.0 | 40 991.5 | 41 970.5 | 42 949.5 | 45 987.0 |
| 4.5/5.0 | 6.29 | 5.89 | 5.82 | 5.73 | 5.65 | 5.56 | 5.31 | 36 501.0 | 39 065.5 | 39 533.8 | 40 002.0 | 41 006.0 | 42 010.0 | 44 930.0 |
| 5.0/5.5 | 6.26 | 5.85 | 5.77 | 5.67 | 5.58 | 5.46 | 5.17 | 35 426.0 | 37 795.0 | 38 275.0 | 38 755.0 | 39 778.0 | 40 801.0 | 43 384.0 |
| 5.5/6.0 | 6.23 | 5.80 | 5.71 | 5.60 | 5.49 | 5.36 | 5.02 | 34 274.0 | 36 408.5 | 36 873.2 | 37 338.0 | 38 222.2 | 39 106.5 | 41 418.0 |
| 6.0/6.5 | 6.20 | 5.76 | 5.66 | 5.53 | 5.41 | 5.25 | 4.85 | 33 161.0 | 35 200.5 | 35 684.5 | 36 168.5 | 36 828.5 | 37 488.5 | 39 197.0 |
| 6.5/7.0 | 6.16 | 5.72 | 5.61 | 5.46 | 5.33 | 5.15 | 4.68 | 31782.0 | 33 990.0 | 34 570.5 | 35 151.0 | 35 664.8 | 36 178.5 | 37 546.0 |
| 7.0/7.5 | 6.10 | 5.67 | 5.55 | 5.40 | 5.26 | 5.05 | 4.56 | 30 118.0 | 32 619.5 | 33 341.0 | 34 062.5 | 34 518.8 | 34 975.0 | 36 067.0 |
| 7.5/8.0 | 6.07 | 5.62 | 5.50 | 5.33 | 5.18 | 4.95 | 4.45 | 29 164.0 | 31 461.0 | 32 245.5 | 33 030.0 | 33 465.5 | 33 901.0 | 34 962.0 |
| 8.0/8.5 | 6.05 | 5.59 | 5.46 | 5.27 | 5.11 | 4.86 | 4.36 | 28 443.0 | 30 756.5 | 31 443.8 | 32 131.0 | 32 541.8 | 32 952.5 | 33 796.0 |
| 8.5/9.0 | 6.03 | 5.56 | 5.42 | 5.21 | 5.04 | 4.77 | 4.26 | 27 831.0 | 30 036.5 | 30 624.8 | 31 213.0 | 31 618.0 | 32 023.0 | 32 797.0 |
| 9.0/9.5 | 5.99 | 5.52 | 5.37 | 5.15 | 4.97 | 4.67 | 4.14 | 26 781.0 | 28 999.5 | 29 741.8 | 30 484.0 | 30 745.0 | 31 006.0 | 31 476.0 |
| 9.5/B0.0 | 5.93 | 5.46 | 5.32 | 5.10 | 4.92 | 4.60 | 4.03 | 25 003.0 | 27 570.0 | 28 610.2 | 29 650.5 | 29 872.2 | 30 094.0 | 30 458.0 |
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| LMC, z = 0.008 | ||||||||||||||
| 2.0 | 6.41 | 6.12 | 6.05 | 5.96 | 5.91 | 5.85 | 5.68 | 41 508.5 | 46 752.5 | 48 104.8 | 49 457.0 | 50 667.8 | 51 878.5 | 55 897.2 |
| 2.0/2.5 | 6.38 | 6.07 | 6.00 | 5.91 | 5.85 | 5.78 | 5.61 | 40 283.8 | 45 653.5 | 46 947.2 | 48 241.0 | 49 450.2 | 50 659.5 | 54 943.8 |
| 2.5/3.0 | 6.37 | 6.03 | 5.95 | 5.85 | 5.79 | 5.72 | 5.50 | 39683.0 | 44 555.0 | 45 790.0 | 47 025.0 | 48 233.0 | 49 441.0 | 53 444.5 |
| 3.0/3.5 | 6.35 | 5.99 | 5.90 | 5.79 | 5.73 | 5.66 | 5.39 | 39 022.4 | 43 457.0 | 44 633.0 | 45 809.0 | 47 016.0 | 48 223.0 | 52 034.5 |
| 3.5/4.0 | 6.33 | 5.94 | 5.85 | 5.73 | 5.66 | 5.59 | 5.30 | 37 894.6 | 42 358.5 | 43 475.8 | 44 593.0 | 45 798.8 | 47 004.5 | 50 877.5 |
| 4.0/4.5 | 6.31 | 5.90 | 5.80 | 5.67 | 5.60 | 5.53 | 5.18 | 37 213.6 | 41 259.5 | 42 318.2 | 43 377.0 | 44 581.2 | 45 785.5 | 49 402.0 |
| 4.5/5.0 | 6.29 | 5.86 | 5.75 | 5.61 | 5.54 | 5.46 | 5.07 | 36 491.9 | 40 161.0 | 41 161.0 | 42 161.0 | 43 364.0 | 44 567.0 | 47 899.7 |
| 5.0/5.5 | 6.26 | 5.81 | 5.70 | 5.55 | 5.48 | 5.40 | 4.98 | 35 433.6 | 39 063.0 | 40 004.0 | 40 945.0 | 42 147.0 | 43 349.0 | 46 752.2 |
| 5.5/6.0 | 6.24 | 5.77 | 5.65 | 5.49 | 5.42 | 5.33 | 4.86 | 34 696.0 | 37 964.5 | 38 846.8 | 39 729.0 | 40 929.8 | 42 130.5 | 45 189.8 |
| 6.0/6.5 | 6.22 | 5.73 | 5.60 | 5.43 | 5.36 | 5.27 | 4.74 | 33 924.5 | 36 865.5 | 37 689.2 | 38 513.0 | 39 712.2 | 40 911.5 | 43 611.8 |
| 6.5/7.0 | 6.19 | 5.68 | 5.55 | 5.37 | 5.30 | 5.21 | 4.64 | 32 916.7 | 35 767.0 | 36 532.0 | 37 297.0 | 38 495.0 | 39 693.0 | 42 351.4 |
| 7.0/7.5 | 6.16 | 5.64 | 5.51 | 5.31 | 5.24 | 5.14 | 4.55 | 31 972.0 | 34 669.0 | 35 375.0 | 36 081.0 | 37 278.0 | 38 475.0 | 41 106.1 |
| 7.5/8.0 | 6.14 | 5.60 | 5.46 | 5.25 | 5.17 | 5.08 | 4.42 | 31193.2 | 33 570.5 | 34 217.8 | 34 865.0 | 36 060.8 | 37 256.5 | 39 428.9 |
| 8.0/8.5 | 6.11 | 5.55 | 5.41 | 5.20 | 5.11 | 5.01 | 4.31 | 30 225.8 | 32 471.5 | 33 060.2 | 33 649.0 | 34 843.2 | 36 037.5 | 38 048.1 |
| 8.5/9.0 | 6.08 | 5.51 | 5.36 | 5.14 | 5.05 | 4.95 | 4.19 | 29 428.4 | 31 373.0 | 31 903.0 | 32 433.0 | 33 626.0 | 34 819.0 | 36 405.0 |
| 9.0/9.5 | 6.06 | 5.47 | 5.31 | 5.08 | 4.99 | 4.88 | 4.05 | 28 610.5 | 30 275.0 | 30 746.0 | 31 217.0 | 32 409.0 | 33 601.0 | 34 681.6 |
| 9.5/B0.0 | 6.02 | 5.42 | 5.26 | 5.02 | 4.93 | 4.82 | 3.94 | 27 671.5 | 29 176.5 | 29 588.8 | 30 001.0 | 31 191.8 | 32 382.5 | 33 242.4 |
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| SMC, z = 0.004 | ||||||||||||||
| 2.0 | 6.53 | 6.10 | 6.07 | 6.03 | 5.86 | 5.60 | 4.96 | 46 917.2 | 44 750.0 | 44 602.5 | 44 455.0 | 46 227.0 | 47 999.0 | 52 669.3 |
| 2.0/2.5 | 6.49 | 6.06 | 6.02 | 5.97 | 5.81 | 5.55 | 4.90 | 45 049.5 | 43 822.0 | 43 709.5 | 43 597.0 | 45 275.0 | 46 953.0 | 51 428.8 |
| 2.5/3.0 | 6.46 | 6.01 | 5.97 | 5.92 | 5.76 | 5.51 | 4.85 | 43 774.8 | 42 893.5 | 42 816.5 | 42 739.5 | 44 323.2 | 45 907.0 | 50 368.6 |
| 3.0/3.5 | 6.43 | 5.96 | 5.92 | 5.87 | 5.71 | 5.46 | 4.79 | 42 452.5 | 41 964.5 | 41 923.5 | 41 882.5 | 43 371.8 | 44 861.0 | 49 111.0 |
| 3.5/4.0 | 6.40 | 5.92 | 5.87 | 5.81 | 5.66 | 5.42 | 4.74 | 41 089.1 | 41 036.0 | 41 030.5 | 41 025.0 | 42 420.0 | 43 815.0 | 48 033.9 |
| 4.0/4.5 | 6.37 | 5.87 | 5.82 | 5.76 | 5.61 | 5.38 | 4.69 | 39 810.7 | 40 108.0 | 40 137.5 | 40 167.0 | 41 468.0 | 42 769.0 | 46 941.5 |
| 4.5/5.0 | 6.34 | 5.83 | 5.77 | 5.71 | 5.56 | 5.33 | 4.63 | 38 628.1 | 39 179.5 | 39 244.5 | 39 309.5 | 40 516.2 | 41 723.0 | 45 651.1 |
| 5.0/5.5 | 6.31 | 5.78 | 5.72 | 5.65 | 5.51 | 5.29 | 4.57 | 37 368.2 | 38 250.5 | 38 351.5 | 38 452.5 | 39 564.8 | 40 677.0 | 44 529.7 |
| 5.5/6.0 | 6.28 | 5.74 | 5.67 | 5.60 | 5.46 | 5.24 | 4.51 | 36 280.7 | 37 322.0 | 37 458.5 | 37 595.0 | 38 613.0 | 39 631.0 | 43 206.9 |
| 6.0/6.5 | 6.25 | 5.69 | 5.62 | 5.54 | 5.41 | 5.20 | 4.45 | 35 050.1 | 36 394.0 | 36 565.5 | 36 737.0 | 37 661.0 | 38 585.0 | 42 054.0 |
| 6.5/7.0 | 6.22 | 5.65 | 5.58 | 5.49 | 5.35 | 5.16 | 4.41 | 33 833.2 | 35 465.5 | 35 672.5 | 35 879.5 | 36 709.2 | 37 539.0 | 41 021.0 |
| 7.0/7.5 | 6.18 | 5.60 | 5.53 | 5.44 | 5.30 | 5.11 | 4.34 | 32 587.5 | 34 536.5 | 34 779.5 | 35 022.5 | 35 757.8 | 36 493.0 | 39 633.7 |
| 7.5/8.0 | 6.15 | 5.56 | 5.48 | 5.38 | 5.25 | 5.07 | 4.28 | 31 619.5 | 33 608.0 | 33 886.5 | 34 165.0 | 34 806.0 | 35 447.0 | 38 400.6 |
| 8.0/8.5 | 6.11 | 5.51 | 5.43 | 5.33 | 5.20 | 5.02 | 4.21 | 30 408.0 | 32 680.0 | 32 993.5 | 33 307.0 | 33 854.0 | 34 401.0 | 36 963.8 |
| 8.5/9.0 | 6.08 | 5.47 | 5.38 | 5.27 | 5.15 | 4.98 | 4.15 | 29 471.1 | 31751.5 | 32 100.5 | 32 449.5 | 32 902.2 | 33 355.0 | 35654.6 |
| 9.0/9.5 | 6.04 | 5.42 | 5.33 | 5.22 | 5.10 | 4.94 | 4.09 | 28 277.4 | 30 822.5 | 31 207.5 | 31 592.5 | 31 950.8 | 32 309.0 | 34 292.1 |
| 9.5/B0.0 | 6.01 | 5.38 | 5.28 | 5.17 | 5.05 | 4.89 | 4.01 | 27 363.6 | 29 894.0 | 30 314.5 | 30 735.0 | 30 999.0 | 31 263.0 | 32 750.0 |
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