| Forum der Vereinigung der Sternfreunde https://forum.vdsastro.de/ |
|
| spectrograph upgrade https://forum.vdsastro.de/viewtopic.php?t=4029 |
Seite 1 von 1 |
| Autor: | Alexandros Filothodoros [ 18. August 2013, 12:23:32 PM ] |
| Betreff des Beitrags: | spectrograph upgrade |
Hello I am thinking of upgrading my spectrograph. One thing will be to change my reflective slit with one with better quality(less reflections).Also it will be narrower.So from 31.6 microns i will use a 25microns slit. Second I am thinking of getting a second grating to achieve a higher resolution and be able to get spectra for the BRITE project. The grating I use now has 1200l/mm and I want to buy a new one with 2400 l/mm. Based on the simspec_slit_e.xls the grating has to be at least 41,2mm wide. Optometrics have some nice grating but the shipping costs are 100€. So it seems that i will buy it from Edmund Optics. The telescope I will use is a MEADE LX200GPS 14''. The spectrograph is optimized at f/5-7. What will happen if I get a smaller grating with 2400 l/mm? Will I have a dramatic fall in resolution, compared to a bigger grating? |
|
| Seite 1 von 1 | Alle Zeiten sind UTC+02:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|