Re:Bright Nova in Delphinius

Forums Variable Stars Bright Nova in Delphinus Re:Bright Nova in Delphinius


Posted by Robin Leadbeater at 19:12 on 2013 Aug 24

Hi again Mike,I used Visual Spec software to digitise your image and did a 2nd order wavelength calibration on your spectrum (using the bright H alpha, beta, gamma emission lines) The resulting calibration is only a very rough approximation to the true dispersion equation of the prism but comparing with a spectrum taken by Olivier Thizy on the same night,taken from the ARAS database same features are clear in both spectra. (The overall shape is different as Oliver’s spectrum has been corrected for instrument response and atmospheric extinction) (EDIT: There should be an image attached but it is not there for some reason which escapes me)Robin