Circular No. 7528
> Central Bureau for Astronomical Telegrams
> INTERNATIONAL ASTRONOMICAL UNION
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> SUPERNOVA 2000er IN PGC 9132
> R. Chassagne, Ste. Clotilde, Ile de Reunion, reports his
> discovery of an apparent supernova (mag 15.1) on CCD images taken
> with an automated 0.30-m telescope on Nov. 23.83 and 24.78 UT. SN
> 2000er is located at R.A. = 2h24m32s.54, Decl. = -58o26'18".0
> (equinox 2000.0), which is 44" east and 16" south of the center of
> PGC 9132. Nothing appears at this position on an image taken by
> Chassagne on Oct. 7.96 (limiting mag 18) or on the Digital Sky
> Survey image taken on 1975 Sept. 9 (limiting mag 22).
> A. Maury, Observatoire de la Cote d'Azur, writes: "I. Hook, R.
> Gorki, F. Selman, M. Dennefeld, and I took a spectrum (range 520-
> 900 nm) of SN 2000er with the 3.6-m telescope (+ EFOSC2) at the
> European Southern Observatory (ESO). The spectrum shows a very
> blue continuum and the absence of a 615-nm trough; no other feature
> is visible except a narrow P-Cyg profile at the rest wavelength of
> He I 587.6-nm. This suggests a possible type-Ib supernova, well
> before maximum, but more observations with a bluer coverage are
> needed. The redshift was measured as 0.031."
> A. Clocchiatti, Pontificia Universidad Catolica; and M.
> Turatto, Osservatorio di Padova, report: "We have observed SN
> 2000er with the 3.6-m telescope (+ EFOSC2) at ESO on Nov. 26.17 UT.
> The object looks very peculiar. The preliminary reduction of a
> spectrum (320-740nm, resolution 1.6 nm) shows a strong continuum
> that can be fitted redward of 400 nm with a blackbody at 8000 K,
> but rapidly drops blueward of this wavelength. A large number of
> narrow features are visible. A narrow unresolved P-Cyg profile has
> the emission centered at 607 nm and could be either Na I D or He I
> 587.6-nm. The separation of the components corresponds to an
> expansion velocity of about 800 km/s. Very broad features are
> possibly developing. Estimated magnitudes for SN 2000er: V = 16.7,
> B-V = +0.4, V-R = +0.2; at the distance of the parent galaxy, these
> correspond to M_V = -19.1 (H_o = 65 km/Mpc/s)."