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IAUC 5450: 1992E; 1992 AD; N Pup 1991; 1955Q

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IAUC number

                                                  Circular No. 5450
Central Bureau for Astronomical Telegrams
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505

     C. Gouiffes and M. Della Valle, European Southern Observatory,
communicate:  "Inspection of CCD spectra (range 570-720 nm, resolution
about 2.0 nm), obtained on Feb. 5.2 UT with the 3.6-m telescope
(+ EFOSC) at La Silla, shows that SN 1992E (IAUC 5446) is a type-Ia
supernova about 1 month past maximum.  The recession velocity of an
underlying H II region, derived from the narrow H-alpha emission, is
z = 0.06."

1992 AD
     O. Hainaut and A. Smette, European Southern Observatory, telex:
"Deep CCD observations performed on Feb. 2.17 UT with the 1.54-m
Danish telescope at La Silla in 1".1 seeing shows 1992 AD to have a
stellar appearance, with no evidence of any coma.  The following
magnitudes were obtained:  Feb. 2.17, V = 16.72 +/- 0.06; Feb. 6.17,
V = 16.95 +/- 0.05, V-R = +0.77 +/- 0.05.  A spectrogram (range 350-
540 nm) taken on Feb. 5.24 at the 2.2-m telescope by W. Zeilinger
and O. Hainaut shows a solar-type spectrum, with no emission line."

     T. E. Harrison, Mt. Stromlo Observatory, communicates that
infrared J- and K-band spectroscopy performed on Feb. 11.4 UT by G.
Stringfellow and himself with the Siding Spring 2.3-m telescope (+
CIGs) shows relatively narrow emission lines of H I (Pa-beta and Pa-
gamma, and Br-gamma), as well as He I at both 1.0830 and 2.058
microns. O I emission at 1.129 microns is as strong as He I at 1.0830

     C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
of an apparent supernova on Palomar Sky Survey prints taken on
1955 Mar. 24.0 UT.  The face-on spiral host galaxy is of magnitude
about 18.5 and is located at R.A. = 10h53m26s.56, Decl. =
+24 25'26".7 (equinox 1950.0, epoch 1992.1).  SN 1955Q is at mag
about 17.5 on the red print and about 17 on the blue print, and is
located 4".3 west and 7".5 south of the nucleus, appearing at the
south part of a short, faint, and isolated blue arm.  This object is
not seen on a technical pan film exposed with the OCA Schmidt
telescope on Feb. 1 at a limiting magnitude of 22.

1992 February 13               (5450)             Daniel W. E. Green

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