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16693

Re: 28 Tauri Periastron passages 2012-2015

The observation report is published at IBVS No. 6199 http://www.konkoly.hu/IBVS/issues.html http://www.konkoly.hu/IBVS/issues.html Ernst Pollmann
daliahmaus
7:38 AM
#16693
 
16690

BeSS monthly report - April 2015

BeSS report – April 2015 Data compiled by Valérie Desnoux Be projects section by Ernst Pollmann here Observateur Nb spec Leonardi 21 Lester 17 Graham 16
    valerie desnoux
    May 16
    #16690
    This message has attachments
    16689

    Halpha EW Period analysis of delta Sco

    Dear colleagues, enclosed you can find a period analysis of the Halpha EW behavior of delta Sco. I think, the illustrations 1 to 4 are self-explained so far.
    daliahmaus
    May 14
    #16689
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    16688

    ARAS Information letter n° 16 - April 2015

    Please find attached the last issue, With noticelly : - Observations of Nova Oph 2015 and Nova Sgr 2015B - CH Cygni campaign - Dr A.
    Francois Teyssier
    May 13
    #16688
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      ARAS_EruptiveStars_2015-04.pdf
    16687

    Re: Possible transient spectral event of Beta Scorpii?

    Hi Robin, Yes, there are many pitfalls lying in wait for the unwary observer. That's one reason astronomical observing is so stimulating, there's always more
    Roy Tucker
    May 11
    #16687
     
    16686

    Re: Possible transient spectral event of Beta Scorpii?

    Hi Roy, Another indirectly related effect to watch out for which can distort the shape of the spectrum is unequal selection of wavelengths at the slit due to
    Robin Leadbeater
    May 11
    #16686
     
    16685

    Re: Possible transient spectral event of Beta Scorpii?

    Dear Ladies and Gentlemen of the Forum, I have gathered further observations tonight that clearly reveal the nature of this phenomenon. As is often the case,
    Roy Tucker
    May 11
    #16685
     
    16684

    Possible transient spectral event of Beta Scorpii?

    Dear Ladies and Gentlemen of the Forum, For almost two months now, I have been acquiring spectra of the nova in Sagittarius and using the brightest component
    Roy Tucker
    May 10
    #16684
     
    16683

    Spectro Star Party OHP 2015 - du 13 au 18 aout - inscriptions ouvert

    (version française à la fin du message) Hello all, We're pleased to announce that the registration is open for the "Spectro Star Party OHP 2015" ! If you
    Cochard François
    May 6
    #16683
     
    16682

    For cloudy evening: mysteries of dark universe

    Hello, Why supernovae type I are important? How Slipher used spectroscopy to unveal the nature of spiral nebulae? How Hubble used Cepheids to discover universe
    Olivier Thizy
    May 4
    #16682
     
    16681

    BeSS March monthly report

    BeSS report – March 2015 Data compiled by Valérie Desnoux Be projects section by Ernst Pollmann here Observateur Nb spec Leonardi 40 Guarro Fló 21 Lester
    valerie desnoux
    Apr 25
    #16681
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      1.2 MB
      BeSS report_mars2015.pdf
    16680

    Spectrohéliogrammes du 21 Avril + évolution Halpha sur 3 jours

    Bonjour à tous, Voici 2 spectrohéliogrammes pris ce jour : l'un Ca II K3 et l'autre pris sur une raie de l'hélium. J'ai pu saisir les prémices de
    Jean-Jacques POUPEAU
    Apr 21
    #16680
     
    16679

    Spectrohéliogrammes du 19 Avril

    Bonjour à tous, Voici quelques spectrohéliogrammes pris aujourd'hui en région parisienne. La transparence du ciel était bonne et malgré le passage des
    Jean-Jacques POUPEAU
    Apr 19
    #16679
     
    16678

    Re: HD 158643 Be star or not Be star ?

    Hey, Hubrig and Castelli discuss 51 Oph in detail in http://fr.arxiv.org/pdf/1204.0652v1 ... They cite: Mora, Merin et al
    Wayne Green
    Apr 17
    #16678
     
    16677

    Re: HD 158643 Be star or not Be star ?

    Hi Olivier, ... Some people in the literature claimed this star is a classical Be star (e.g. in the catalog of Jaschek). However, other people think it is
    Coralie Neiner
    Apr 16
    #16677
     
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