Strong Lines of Helium ( He )
Intensity Wavelength (Å) Spectrum Ref.
Vacuum
15 c 231.4541 He II GM65
20 c 232.5842 He II GM65
30 c 234.3472 He II GM65
50 c 237.3307 He II GM65
100 c 243.0266 He II GM65
300 P 256.3166 He II MK00b
150 P 256.3177 He II MK00b
1000 P 303.7804 He II MK00b
500 P 303.7858 He II MK00b
10 320.293 He I TW71
2 505.50035 He I M02
3 505.68433 He I M02
4 505.91252 He I M02
5 506.20034 He I M02
7 506.57057 He I M02
10 507.05802 He I M02
15 507.71809 He I M02
20 508.64338 He I M02
25 509.99829 He I M02
35 512.09856 He I M02
50 515.61684 He I M02
100 P 522.21309 He I M02
400 P 537.02992 He I M02
1000 P 584.33436 He I M02
50 591.41207 He I M02
5 c 958.70 He II GM65
6 c 972.11 He II GM65
8 c 992.36 He II GM65
15 c 1025.27 He II GM65
30 c 1084.94 He II GM65
35 1215.09 He II GM65
50 c 1215.17 He II GM65
120 P 1640.3321 He II MK00b
50 P 1640.3447 He II MK00b
7 P 1640.3750 He II MK00b
25 P 1640.3914 He II MK00b
180 P 1640.4742 He II MK00b
25 P 1640.4897 He II MK00b
15 P 1640.5326 He II MK00b
Air
7 c 2385.40 He II GM65
9 c 2511.20 He II GM65
1 2723.19 He I M60a
12 c 2733.30 He II GM65
2 2763.80 He I M60a
10 2818.2 He I BDD72
4 2829.08 He I M60a
10 2945.11 He I M60a
40 3013.7 He I BDD72
20 3187.74 He I M60a
15 c 3203.10 He II GM65
1 3354.55 He I M60a
2 3447.59 He I M60a
1 3587.27 He I M60a
3 3613.64 He I M60a
2 3634.23 He I M60a
3 3705.00 He I M60a
1 3732.86 He I M60a
10 3819.607 He I M60a
1 3819.76 He I M60a
60 P 3888.6046 He I M02
200 P 3888.6456 He I M02
300 P 3888.6489 He I M02
20 3964.729 He I M60a
1 4009.27 He I M60a
50 4026.191 He I M60a
5 4026.36 He I M60a
12 4120.82 He I M60a
2 4120.99 He I M60a
3 4143.76 He I M60a
10 4387.929 He I M60a
3 4437.55 He I M60a
200 4471.479 He I M60a
25 4471.68 He I M60a
4 P,c 4685.3769 He II MK00b
3 P,c 4685.4072 He II MK00b
15* P,c 4685.7038 He II MK00b
15* P,c 4685.7044 He II MK00b
12 P,c 4685.8041 He II MK00b
30 4713.146 He I M60a
4 4713.38 He I M60a
20 4921.931 He I M60a
100 5015.678 He I M60a
10 5047.74 He I M60a
5 c 5411.52 He II GM65
500 P 5875.6148 He I M02
250 P 5875.6404 He I M02
120 P 5875.9663 He I M02
8 c 6560.10 He II GM65
200 P 6678.1517 He I M02
3 6867.48 He I M60a
100 P 7065.1771 He I M02
60 P 7065.2153 He I M02
20 P 7065.7086 He I M02
50 7281.35 He I M60a
1 7816.15 He I M60a
2 8361.69 He I M60a
2 9063.27 He I M60a
2 9210.34 He I M60a
10 9463.61 He I M60a
4 9516.60 He I M60a
3 9526.17 He I M60a
1 9529.27 He I M60a
1 9603.42 He I M60a
3 9702.60 He I M60a
6 10027.73 He I M60a
2 10031.16 He I M60a
15 c 10123.6 He II GM65
1 10138.50 He I M60a
10 10311.23 He I M60a
2 10311.54 He I M60a
3 10667.65 He I M60a
150 P 10829.0911 He I M02
500 P 10830.2501 He I M02
1000 P 10830.3398 He I M02
9 10913.05 He I L70a
3 10917.10 He I L70a
4 c 11626.4 He II GM65
30 11969.12 He I L70a
20 12527.52 He I L70a
50 12784.99 He I L70a
20 12790.57 He I L70a
7 12845.96 He I L70a
10 12968.45 He I L70a
2 12984.89 He I L70a
12 15083.64 He I L70a
200 17002.47 He I L70a
1 18555.55 He I M60a
6 c 18636.8 He II GM65
500 18685.34 He I L70a
200 18697.23 He I L70a
100 19089.38 He I L70a
20 19543.08 He I L70a
500 P 20581.287 He I M02
80 21120.07 He I L70a
10 21121.43 He I L70a
20 21132.03 He I L70a
3 c 30908.5 He II GM65
4 40478.90 He I L70a