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Monitoring the radial velocity of ζ Tauri (News)

Sunday 13 February 2011 by Ernst Pollmann
The Be-binary star ζ Tau shows periodic behaviour in the radial velocity of the HeI 6678 absorption line. There is a serious request from professional astronomers to amateurs to contribute their observations to the monitoring of this parameter. Fortunately it´s fairly easy, even with relative (...)


H-alpha V/R time behavior in pi Aqr (News)

Sunday 13 February 2011 by Ernst Pollmann
Halpha V/R time behaviour in pi Aqr The V/R measurements in Hα spectra of the binary star π Aqr since October 2004 until today, makes possible an analysis of a possible periodic behavior. Fig. 1 shows the V/R time behaviour in seven visibility phases, fig. 2 shows in power spectrum a dominant (...)


BeSS data analysis : Workshop in Meudon (News)

Friday 11 February 2011 by Francois Cochard
On Friday february 20th, 2011, we had a meeting in Meudon, between Amateurs (V. Desnoux, M. Bonnement, P. Chambraud, O. Thizy, F. Cochard) and Professionals (C. Neiner, M. Floquet, E. Alecian, B. De Batz, B. Leroy). The goal was to discuss the best way to analyse available BeSS data. We (...)


10 candles for the Bess program (News)

Monday 11 June 2018 by JJ Broussat
BeSS is a professional/amateur program that started in 2007. Today it has more than 12,000 spectra for more than 2000 Be stars. BeSS data has been used by more than 53 scientific publications. During the week of October 23 - 27, 2017, we celebrated the tenth birthday of the BeSS program. (...)


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