Circular No. 9205
 Central Bureau for Astronomical Telegrams
 INTERNATIONAL ASTRONOMICAL UNION
 New postal address:  Hoffman Lab 209; Harvard University;
  20 Oxford St.; Cambridge, MA  02138; U.S.A.
 CBATIAU@EPS.HARVARD.EDU           ISSN 0081-0304
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 Prepared using the Tamkin Foundation Computer Network


 T PYXIDIS
      E. Waagan, AAVSO, communicates that M. Linnolt (Ocean View, HI,
 U.S.A.) observed an outburst of the recurrent nova T Pyx at visual
 magnitude 13.0 on Apr. 14.2931 UT.  According to observations in
 the AAVSO International Database, the last outburst of T Pyx
 occurred on 1966 Dec. 10 (cf. IAUCs 1983, 1986, 1993), when it
 reached visual mag 6.5 from fainter than 15th magnitude; it was
 brighter than magnitude 8 for two months, fading to mag 14.3 by
 1967 Oct. 8.  Previous outbursts occurred in 1890, 1902, 1920, and
 1944.  Additional information was given on CBET 2700.  Visual
 magnitude estimates by A. Pearce, Nedlands, W. Australia:  Apr.
 14.501, 11.1; 14.665, 10.8; 15.502, 8.3; 15.627, 8.3; 16.497, 7.9.
      Ernesto Guido and Giovanni Sostero obtained unfiltered CCD
 images of T Pyx remotely through with two telescopes at the GRAS
 Observatory at Officer, Australia, on Apr. 15.38, yielding mag
 about 8.6 and position R.A. = 9h04m41s.56, Decl. = -32o22'47".4
 (equinox 2000.0; USNO-B1.0 catalogue reference stars); on Apr.
 16.37, they measured magnitudes V = 7.7, B = 8.0, and R = 7.5.
      L. Izzo, Sapienza Universita di Roma; A. Ederoclite and J. I.
 Gonzales Hernandez, Instituto de Astrofisica de Canarias; E. Mason,
 Space Telescope Science Institute and European Space Agency; and M.
 Della Valle, Istituto Nazionale di Astrofisica (INAF), Capodimonte
 Astronomical Observatory, Napoli, report on their spectroscopic
 observation of T Pyx with the Telescopio Nazionale Galileo (+ SARG;
 range 462-795 nm; resolution 57000) obtained on Apr. 14.89 UT.  A
 preliminary analysis shows that the spectrum is dominated by Balmer,
 N II, and Na I emission lines.  H_alpha and H_beta are flanked by
 blue-shifted P-Cyg profiles, and the mean expansion velocity
 derived from the minimum of the P-Cyg absorptions is about 1800
 km/s.  The measured FWHM of Balmer lines is about 1200 km/s.  The
 Na I interstellar lines appear saturated, thus suggesting a high
 absorption/reddening.
      R. Angeloni, K. Helminiak, and L. Vanzi, Pontificia
 Universidad Catolica de Chile; F. Di Mille, Australian Astronomical
 Observatory and Las Campanas Observatory; and D. Fugazza, INAF,
 Osservatorio Astronomico di Brera, report that near-infrared images,
 obtained on Apr. 15.23 UT with the 0.6-m REM telescope (+ REMIR)
 located at La Silla, yield the following magnitudes:  J = 7.79, H =
 7.29, K = 7.18.  REM photometric monitoring of T Pyx is continuing.

                       (C) Copyright 2011 CBAT
 2011 April 18                  (9205)            Daniel W. E. Green