T CrB in excited state
Posted: Mon Jul 29, 2013 5:10 pm
T CrB, the recurrent nova (1866 1946) is currently in excited state.
On the recent spectra, for example 19-07-2013, one can see (faints) He I and He II lines :
More spectra should be useful.
Also photometry in B band or clear, with exposure time under 20-30 secondes in order to detect flickering.
Spectra to be sent to Francois.Teyssier at dbmail.com.
On the recent spectra, for example 19-07-2013, one can see (faints) He I and He II lines :
More spectra should be useful.
Also photometry in B band or clear, with exposure time under 20-30 secondes in order to detect flickering.
Spectra to be sent to Francois.Teyssier at dbmail.com.