TX CVn
Posted: Tue Feb 27, 2018 9:04 am
Got some spectra for this interesting symbiotic star in Ha, Hb (25Feb18), & CaK (26Feb18):
This is a kinda dim object (Probably <9.2 magnitude) for the LhiresIII with the 2400 l/mm grating, so I applied a low-pass Gaussian filter for the spectra charts above; did
not apply it to the calibrated spectra. I used the nearby star HD085235 for my image response curve (IRC). The CaK band was especially difficult so I had to go over
3 hrs to exposure this with the 43 Cm aperture reflector working at a little over F/10. As usual, any elemental spectral lines besides the Balmer bands are speculative.
James
This is a kinda dim object (Probably <9.2 magnitude) for the LhiresIII with the 2400 l/mm grating, so I applied a low-pass Gaussian filter for the spectra charts above; did
not apply it to the calibrated spectra. I used the nearby star HD085235 for my image response curve (IRC). The CaK band was especially difficult so I had to go over
3 hrs to exposure this with the 43 Cm aperture reflector working at a little over F/10. As usual, any elemental spectral lines besides the Balmer bands are speculative.
James