Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4614: 1988P; 1988L; 1987g; N Oph 1988

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 4613 SEARCH Read IAUC 4615
IAUC number 

                                                  Circular No. 4614
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


SUPERNOVA 1988P IN ANONYMOUS GALAXY
     C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
with the CERGA Schmidt of a possible supernova at R.A. = 15h29m57s.07,
Decl. = +1D47'33".2 (equinox 1950.0), 4".4 east and 3".7 north of the
nucleus of an anonymous galaxy.  The object was observed on June 9.97
and 14.98 UT at mpg = 18.5.


SUPERNOVA 1988L IN NGC 5480
     M. Kidger, Instituto de Astrofisica de Canarias, communicates the
following information from the observers (and intepreters) listed on
IAUC 4613 in connection with SN 1988A: "SN 1988L appears to be of type
Ib, with He I at a rest-frame velocity of 8500 km/s and O I at 9770
km/s.  A prominent line at 830 nm probably corresponds to a blend of
Ca II 857.9 nm with O I 844.6 nm and the S I 868.4, 888.0-nm doublet.
The [Ca II] doublet transition at 729.1 and 732.4 nm is also present."


PERIODIC COMET TEMPEL 2 (1987g)
     M. A'Hearn, H. Campins and D. Schleicher report simultaneous
optical and thermal infrared observations from the University of
Hawaii's 2.2-m reflector and Infrared Telescope Facility on Mauna Kea
on June 10 and 11.  They confirm the basic period (near 9 hours) and
amplitude (near 0.5 mag) of the double-peaked lightcurve of Wisniewski
(IAUC 4603).  In a 10" aperture the coma contribution was constant at
20 percent of the total light at maximum in the optical and less than
5 percent at 10 microns.  The effective nuclear radius at maximum is
5.6 +/- 0.2 km with geometric albedo 0.024 +/- 0.005 and axial ratio
greater than or equal to 1.9.


NOVA OPHIUCHI 1988
     Visual magnitude estimates: June 6.05 UT, 10.9 (A. Pereira,
Linda-a-Velha, Portugal); 7.04, 10.8 (Pereira); 10.36, 10.6 (D. A. J.
Seargent, The Entrance, N.S.W.); 11.43, 10.8 (Seargent); 12.48, 10.7
(R. H. McNaught, Coonabarabran, N.S.W.); 13.39, 11.0 (McNaught).


1988 June 15                   (4614)              Brian G. Marsden

Read IAUC 4613 SEARCH Read IAUC 4615

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

Valid HTML 4.01!