Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 5719: 1985S; Var OBJECT NEAR NGC 4192; 1993G

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 5718  SEARCH Read IAUC 5720

View IAUC 5719 in .dvi or .ps format.
IAUC number

                                                  Circular No. 5719
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

SUPERNOVA 1985S IN IRAS 0225-103
     W. C. Keel, Department of Physics and Astronomy, University of
Alabama, reports his discovery of an apparent supernova in IRAS
0225-103 (= MCG -2-07-010 = Markarian 1039; R.A. = 2h25m.1, Decl. =
-10 23', equinox 1950.0).  The discovery was made during an analysis
of spectroscopic observations (range 330-730 nm) made on 1985
Sept. 19 UT with the 2.5-m Isaac Newton Telescope by M. H. K. de
Grijp.  Other participants in the project were G. Miley and J. Lub.
The rough magnitude was V about 12.8 (V flux = 3.0 x 10E-14 erg
cmE-2 sE-1 AE-1).  SN 1985S is located 15" southeast of the
galaxy's nucleus.  No bright object appears in this area on the
Markarian finding chart (taken from the POSS O print; Markarian et
al. 1977, Astrophys. 13, 221).  The spectrum, published by de Grijp
et al. (1992, A.Ap. Suppl. 96, 389), resembles spectra of certain
type-II supernovae, such as that of SN 1988A in NGC 4579 as seen 20
days after maximum light and that of SN 1987A between 60 and 80
days after outburst.

     C. Pollas, Observatoire de la Cote d'Azur, reports that the
information he provided on IAUC 5499 is to be disregarded.  He did
find an object of V about 19 that is not obviously variable on OCA
photographs taken in 1983, 1991, and 1992.  The object is also
present on the Palomar Sky Survey prints (blue mag about 20, red
mag about 18.5).  Pollas provides the following accurate position:
R.A. = 12h11m16s.39, Decl. = +15 11'03".7 (equinox 1950.0), which
corresponds to about 17".8 east and 22".2 north (+/- 1".5) of the
galaxy's diffuse center.

     G. Forti, Osservatorio Astrofisico Arcetri, reports the
following position for SN 1993G as measured by A. Boattini and M.
Tombelli:  R.A. = 11h25m43s.99, Decl. = +58 50'02".7 (equinox
1950.0); the corresponding offset from the galaxy's nucleus is 0".7
west and 16".3 south.
     W. Herbst and G. Vinton report a measurement of V = 16.7 +/-
0.1 for SN 1993G on Mar. 10.16 UT, using the 0.6-m Perkin reflector
(+ CCD) of Van Vleck Observatory, Wesleyan University.  A star
about 0'.5 east and 2'.7 south of the supernova has V = 11.4 +/-

1993 March 11                  (5719)            Daniel W. E. Green

Read IAUC 5718  SEARCH Read IAUC 5720

View IAUC 5719 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!