rubble
Dec7-06, 03:59 PM
hey guys anyone got any ideas on this:
f/19 cassegrain focus of a 408mm telescope. ccd is 12.3mm long, each pixel is a square of side 24 x 10E-6 m, grating used has 1200lines/mm
1. = the spectrum is imaged on a ccd with a zoo lens such that the dispersion is 3.3nm/mm. what is the range of wavelengths that can be imaged on the ccd?
2. = the range of wavelengths that fall on a single ccd pixel
3. = the resolution of this spectrograph in terms of the radial velocity of the source of radiation, if the spectrum is centred on 600nm
cheers everyone!
rubble
f/19 cassegrain focus of a 408mm telescope. ccd is 12.3mm long, each pixel is a square of side 24 x 10E-6 m, grating used has 1200lines/mm
1. = the spectrum is imaged on a ccd with a zoo lens such that the dispersion is 3.3nm/mm. what is the range of wavelengths that can be imaged on the ccd?
2. = the range of wavelengths that fall on a single ccd pixel
3. = the resolution of this spectrograph in terms of the radial velocity of the source of radiation, if the spectrum is centred on 600nm
cheers everyone!
rubble