SN2000er   in  PGC9132    ( 2h24m29.6s  -58°26'02" )

offset  27 "E  16 "S    magnitude  15.1

Telescope  LX200  12"  f/d 2.7  ST7E   UAI173  Ste Clotilde  REUNION   ISLAND

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)."

discovery image 2000/11/23.83  unflated	reference image 2000/10/7.96  unflated       limiting mag 18
confirmation image 2000/11/24.78  mag 15.1	referenced  image  DSS   1975/09/09    limiting mag 22