wpo - session spectra - 2000 March 10

2000 March 11 - series of spectra captured during continuing programme on T Cep - located in the London murk on the northern meridian.  Exposures marked in seconds [s].  The top five stars are cool M-type spectra with little radiation in the visible.  The remaining hot bright stars radiate in the visible of spectral type B - G.  The central star in the emission nebula NGC 7023 in Cepheus [near T Cep] shows strong Ha emission.  The atmospheric absorption line A marks the boundary to infra-red to the right.