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The DADOS Spectrograph
Spectrographical observations are taken out with the DADOS Spectrograph of Baader Planetarium.
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Our DADOS Spectrograph
Manual
The basic data are taken from the Baader-webpage.
| Grating | Dispersion at 550nm | Spectral resolution $\frac{\lambda}{\Delta\lambda}$ at 550nm with the 3 slit widths | Covered Spectral range in nm | ||||
|---|---|---|---|---|---|---|---|
| Line/nm | nm/mm | nm/9µm Pixel | 25µm | 35µm | 50µm | ST-7 | ST-8 |
| 200 | 47,61 | 0,443 | 543 | 388 | 272 | 328 | 656 |
| 900 | 12,67 | 0,114 | 3818 | 2727 | 1909 | 87 | 174 |
Representative spectra that where taken with our DADOS spectrograph can be found here.
The BACHES Echelle Spectrograph
The new Echelle Spectrograph of Baader, which has been developed by the Max-Planck-Institut for extraterrestrial physics, has the following properties
- Resolution: $R = \frac{\lambda}{\Delta \lambda} = 14,000-20,000$
- Wavelength range: $\lambda$ = 400-700 nm (without gaps)
- maximum efficiency: 31%