wpo - session spectra - 2003 August-Oct

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2003 Aug 31/Sept 7/ Oct 14/15/20/27: Early session following regular records of Nova Sct 03 via Rainbow Optics grating before MX9 CCD camera in full-res mode to give dispersion of 25A/pixel and res ~50A on mainly red long period variable stars located remotely and goto-ed via Megastar.  a, g Aquilae included.
 
  • EV Lac CV flare star appears in Ha/Hb emission and is not mimicked by other M-type spectra stars here.
  • Two carbon spectrum stars V Aql and S Sct plus southerly TT PsA and T Mic peaking at 7500A towards near-IR.
  • Return after three years to the weird Lawn-Sprinkler mag 13 star SS433 [Aql] with Doppler-shifted emission lines from neutron star companion.

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    EV Lac spectrum

    alpha_aql spectrumgamma Aql spectrumvz sge spectrumns vul spectrumdelta sge spectrumen aqr spectrumEP Aqr spectrum



    text & images copyright - Maurice Gavin 2003