| Element | Intensity | Wavelength (nm)
in air |
Spectrum | Levels Odd J Even J |
|||
| NpI-II | 300 | 348.193 | I | 28 711 | 13/2 | 0 | 11/2 |
| NpI-II | 300 h | 350.150 | I | 28 551 | 13/2 | 0 | 11/2 |
| NpI-II | 300 l | 398.689 | I | 25 075 | 13/2 | 0 | 11/2 |
| NpI-II | 300 s | 504.466 | I | 21 851 | 11/2 | 2 033 | 9/2 |
| NpI-II | 300 s | 538.098 | II | 5 451 | 5 | 24 030 | 4 |
| NpI-II | 300 l | 560.170 | I | 27 867 | 17/2 | 10 020 | 17/2 |
| NpI-II | 300 l | 565.275 | I | 24 798 | 13/2 | 7 112 | 11/2 |
| NpI-II | 300 l | 578.439 | I | 25 075 | 13/2 | 7 792 | 13/2 |
| NpI-II | 300 l | 587.804 | I | 17 007 | 13/2 | 0 | 11/2 |
| NpI-II | 300 s | 601.122 | I | 21 246 | 3/2 | 4 615 | 5/2 |
| NpI-II | 300 s | 605.609 | I | 16 507 | 9/2 | 0 | 11/2 |
| NpI-II | 300 s | 607.390 | I | 16 459 | 9/2 | 0 | 11/2 |
| NpI-II | 300 s | 608.005 | I | 21 058 | 3/2 | 4 615 | 5/2 |
| NpI-II | 300 l | 612.049 | I | 16 334 | 13/2 | 0 | 11/2 |
| NpI-II | 300 s | 618.859 | I | 16 154 | 9/2 | 0 | 11/2 |
| NpI-II | 300 l | 620.000 | I | 25 075 | 13/2 | 8 950 | 13/2 |
| NpI-II | 300 s | 621.590 | I | 18 117 | 7/2 | 2 033 | 9/2 |
| NpI-II | 300 s | 631.784 | I | 2 831 | 5/2 | 18 654 | 5/2 |
| NpI-II | 300 l | 634.138 | I | 28 713 | 19/2 | 12 947 | 17/2 |
| NpI-II | 300 l | 656.611 | I | 18 728 | 11/2 | 3 502 | 13/2 |
| NpI-II | 300 l | 672.068 | I | 24 896 | 15/2 | 10 020 | 17/2 |
| NpI-II | 300 s | 675.132 | I | 19 992 | 11/2 | 5 184 | 11/2 |
| NpI-II | 300 s | 679.521 | I | 21 355 | 11/2 | 6 643 | 9/2 |
| NpI-II | 300 l | 680.262 | I | 24 390 | 13/2 | 9 694 | 11/2 |
| NpI-II | 300 l | 680.581 | I | 21 592 | 13/2 | 6 903 | 15/2 |
| NpI-II | 300 s | 681.644 | I | 18 117 | 7/2 | 3 450 | 7/2 |
| NpI-II | 300 l | 686.545 | I | 21 453 | 9/2 | 6 892 | 7/2 |
| NpI-II | 300 s | 690.713 | I | 16 507 | 9/2 | 2 033 | 9/2 |
| NpI-II | 300 h | 691.291 | I | 19 646 | 9/2 | 5 184 | 11/2 |
| NpI-II | 1 000 s | 693.031 | I | 16 459 | 9/2 | 2 033 | 9/2 |
| NpI-II | 300 l | 696.363 | I | 17 859 | 11/2 | 3 502 | 13/2 |
| NpI-II | 3 000 s | 697.209 | I | 14 338 | 11/2 | 0 | 11/2 |
| NpI-II | 300 | 701.402 | I | 21 156 | 15/2 | 6 903 | 15/2 |
| NpI-II | 300 l | 701.891 | I | 21 355 | 11/2 | 7 112 | 11/2 |
| NpI-II | 300 s | 703.914 | I | 22 074 | 11/2 | 7 871 | 9/2 |
| NpI-II | 300 s | 708.001 | I | 16 154 | 9/2 | 2 033 | 9/2 |
| NpI-II | 300 l | 717.483 | I | 2 831 | 5/2 | 16 764 | 3/2 |
| NpI-II | 300 l | 718.493 | I | 25 474 | 13/2 | 11 560 | 11/2 |
| NpI-II | 300 l | 728.428 | I | 20 836 | 9/2 | 7 112 | 11/2 |
| NpI-II | 300 l | 729.229 | I | 15 743 | 11/2 | 2 033 | 9/2 |
| NpI-II | 300 l | 733.252 | I | 24 136 | 15/2 | 10 502 | 15/2 |
| NpI-II | 300 s | 737.060 | I | 21 355 | 11/2 | 7 792 | 13/2 |
| NpI-II | 300 l | 738.103 | I | 22 251 | 13/2 | 8 706 | 11/2 |
| NpI-II | 300 l | 738.165 | I | 18 728 | 11/2 | 5 184 | 11/2 |
| NpI-II | 300 l | 740.270 | I | 17 007 | 13/2 | 3 502 | 13/2 |
| NpI-II | 300 e | 751.222 | I | 16 810 | 11/2 | 3 502 | 13/2 |
| NpI-II | 300 l | 751.515 | I | 26 232 | 19/2 | 12 930 | 19/2 |
| NpI-II | 300 l | 754.605 | I | 21 040 | 13/2 | 7 792 | 13/2 |
| NpI-II | 300 l | 762.483 | I | 23 132 | 17/2 | 10 020 | 17/2 |
| NpI-II | 300 | 762.685 | I | 22 058 | 13/2 | 8 950 | 13/2 |
| NpI-II | 300 s | 768.101 | I | 18 200 | 9/2 | 5 184 | 11/2 |
| NpI-II | 300 s | 768.525 | I | 16 459 | 9/2 | 3 450 | 7/2 |
| NpI-II | 1 000 l | 773.514 | I | 19 827 | 15/2 | 6 903 | 15/2 |
| NpI-II | 300 l | 776.161 | I | 19 992 | 11/2 | 7 112 | 11/2 |
| NpI-II | 1 000 l | 776.575 | I | 19 985 | 9/2 | 7 112 | 11/2 |
| NpI-II | 300 s | 777.607 | I | 24 136 | 13/2 | 11 279 | 15/2 |
| NpI-II | 300 | 778.746 | I | 2 831 | 5/2 | 15 668 | 3/2 |
| NpI-II | 1 000 l | 779.138 | I | 16 334 | 13/2 | 3 502 | 13/2 |
| NpI-II | 300 l | 785.144 | I | 22 602 | 7/2 | 9 869 | 9/2 |
| NpI-II | 300 l | 788.788 | I | 17 859 | 11/2 | 5 184 | 11/2 |
| NpI-II | 300 l | 790.171 | I | 22 521 | 7/2 | 9 869 | 9/2 |
| NpI-II | 300 l | 797.598 | I | 19 646 | 9/2 | 7 112 | 11/2 |
| NpI-II | 300 e | 808.032 | I | 19 275 | 13/2 | 6 903 | 15/2 |
| NpI-II | 300 s | 812.459 | I | 14 338 | 11/2 | 2 033 | 9/2 |
| NpI-II | 300 | 815.511 | I | 20 050 | 13/2 | 7 792 | 13/2 |
| NpI-II | 300 l | 816.742 | I | 15 743 | 11/2 | 3 502 | 13/2 |
| NpI-II | 300 l | 818.306 | 26 012 | 17/2 | 13 794 | 17/2 | |
| NpI-II | 300 l | 818.306 | I | 22 238 | 15/2 | 10 020 | 17/2 |
| NpI-II | 300 l | 818.861 | I | 19 100 | 9/2 | 6 892 | 7/2 |
| NpI-II | 300 l | 824.782 | I | 19 233 | 9/2 | 7 112 | 11/2 |
| NpI-II | 300 l | 828.711 | I | 25 551 | 11/2 | 13 488 | 13/2 |
| NpI-II | 300 s | 828.775 | I | 23 540 | 11/2 | 11 478 | 11/2 |
| NpI-II | 300 l | 830.622 | I | 19 827 | 15/2 | 7 792 | 13/2 |
| NpI-II | 300 s | 831.366 | 1 | 23 304 | 13/2 | 11 279 | 15/2 |
| NpI-II | 1 000 l | 833.912 | I | 19 100 | 9/2 | 7 112 | 11/2 |
| NpI-II | 300 | 835.679 | I | 23 242 | 15/2 | 11 279 | 15/2 |
| NpI-II | 300 l | 836.711 | I | 24 896 | 15/2 | 12 947 | 17/2 |
| NpI-II | 3 000 | 837.288 | I | 11 940 | 9/2 | 0 | 11/2 |
| NpI-II | 3 000 | 852.996 | I | 18 194 | 5/2 | 6 474 | 3/2 |
| NpI-II | 1 000 s | 869.623 | I | 18 388 | 7/2 | 6 892 | 7/2 |
| NpI-II | 1 000 s | 890.602 | I | 18 117 | 7/2 | 6 892 | 7/2 |
| NpI-II | 1 000 | 894.270 | I | 18 194 | 5/2 | 7 015 | 5/2 |
| NpI-II | 1 000 s | 900.475 | I | 18 117 | 7/2 | 7 015 | 5/2 |
| NpI-II | 1 000 l | 900.631 | I | 20 050 | 13/2 | 8 950 | 13/2 |
| NpI-II | 10 000 l | 901.618 | I | 18 200 | 9/2 | 7 112 | 11/2 |
| NpI-II | 3 000 l | 914.130 | I | 18 728 | 11/2 | 7 792 | 13/2 |
| NpI-II | 3 000 s | 937.933 | I | 12 692 | 7/2 | 2 033 | 9/2 |
| NpI-II | 3 000 l | 946.866 | I | 15 743 | 11/2 | 5 184 | 11/2 |
| NpI-II | 3 000 s | 967.913 | I | 18 200 | 9/2 | 7 871 | 9/2 |
| NpI-II | 3 000 l | 993.055 | I | 17 859 | 11/2 | 7 792 | 13/2 |
| NpI-II | 10 000 l | 1 009.199 | I | 11 940 | 9/2 | 2 033 | 9/2 |
| NpI-II | 10 000 s | 1 081.745 | I | 12 692 | 7/2 | 3 450 | 7/2 |
| NpI-II | 10 000 l | 1 169.515 | I | 19 827 | 15/2 | 11 279 | 15/2 |
| NpI-II | 10 000 l | 1 177.664 | I | 11 940 | 9/2 | 3 450 | 7/2 |
| NpI-II | 10 000 s | 1 214.818 | I | 16 507 | 9/2 | 8 278 | 7/2 |
| NpI-II | 10 000 s | 1 237.742 | I | 12 692 | 7/2 | 4 615 | 5/2 |
| NpI-II | 10 000 l | 1 240.799 | I | 17 007 | 13/2 | 8 950 | 13/2 |
| NpI-II | 10 000 l | 1 383.433 | I | 14 338 | 11/2 | 7 112 | 11/2 |