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Below is a list of Paschen, Brackett, Pfund, and Humphreys series lines of atomic hydrogen in the 1-5µm region, which are noticeable in R~1000 spectra of A0V stars.
| SERIES | TRANSITION | WAVELENGTH (µm) |
| Paschen | 4-3 | 1.875 |
| Paschen | 5-3 | 1.282 |
| Paschen | 6-3 | 1.094 |
| Paschen | 7-3 | 1.005 |
| Brackett | 5-4 | 4.052 |
| Brackett | 7-4 | 2.166 |
| Brackett | 8-4 | 1.945 |
| Brackett | 9-4 | 1.818 |
| Brackett | 10-4 | 1.737 |
| Brackett | 11-4 | 1.681 |
| Brackett | 12-4 | 1.641 |
| Brackett | 13-4 | 1.611 |
| Brackett | 14-4 | 1.588 |
| Brackett | 15-4 | 1.571 |
| Brackett | 16-4 | 1.556 |
| Brackett | 17-4 | 1.544 |
| Pfund | 7-5 | 4.654 |
| Pfund | 7-5 | 4.654 |
| Pfund | 8-5 | 3.741 |
| Pfund | 9-5 | 3.297 |
| Pfund | 10-5 | 3.039 |
| Pfund | 11-5 | 2.873 |
| Humphreys | 10-6 | 5.129 |
| Humphreys | 11-6 | 4.673 |
| Humphreys | 13-6 | 4.171 |
| Humphreys | 14-6 | 4.021 |
| Humphreys | 15-6 | 3.908 |
| Humphreys | 16-6 | 3.819 |
| Humphreys | 17-6 | 3.749 |
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