How Can We Help?
Internal Comparison Lamp Spectra
The following HeAr spectra were taken with the Boller & Chivens spectrograph + Marconi#1 CCD using the internal comparison lamps. The grating angle and wavelength coverage is given for each spectrum. Note that, the I.D.s given are intended only as an aid to identifying the wavelength region, and do not include all of the useful lines for carrying out a dispersion solution.
| 600 l/mm, 5000 Å Grating: | |
| 10.8° | 3609-6794 Å |
| 600 l/mm, 7500 Å Grating: | |
| 13.8° | 5091-8290 Å |
| 17.3° | 6922-10149 Å |
| 832 l/mm, 8000 Å Grating: | |
| 20.9° | 6171-8522 Å |
| 25.0° | 7641-9990 Å |
| 23.4° | 3538-4727 Å |
| 1200 l/mm, 4000 Å Grating: | |
| 15.4° | 2928-4559 Å |
| 18.0° | 3607-5239 Å |
| 20.4° | 4230-5864 Å |
| 1200 l/mm, 5000 Å Grating: | |
| 20.4° | 4220-5854 Å |
| 23.4° | 4979-6612 Å |
| 1200 l/mm, 7500 Å Grating: | |
| 21.5° | 4503-6136 Å |
| 26.9° | 5816-7446 Å |
| 32.0° | 7021-8640 Å |
| 38.5° | 8454-10037 Å |
| 34.2° (2nd order) | 3763-4574 Å |
| 39.0° (2nd order) | 4288-5083 Å |
