Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 5601: 1992ap; 1992av; 1992 HE

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 5600 SEARCH Read IAUC 5602

View IAUC 5601 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 5601
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


SUPERNOVA 1992ap IN UGC 10430
     A. V. Filippenko, T. Matheson and L. C. Ho, University of
California, Berkeley, report that an uncalibrated CCD spectrum
(range 400-700 nm) obtained on Sept. 2 UT with the Shane 3-m reflector
at the Lick Observatory confirms that SN 1992ap is of type Ia, about
1-2 months past maximum brightness.  However, the declination of UGC
10430 is +41 35'25" (equinox 1950.0), rather than the +41 25'25" that
was stated on IAUC 5573.


SUPERNOVA 1992av IN ANONYMOUS GALAXY
     S. Benetti, F. Patat and M. Turatto, Asiago Astrophysical
Observatory, report that they obtained a low-resolution spectrum of
this faint object on Sept. 1.92 UT with the Boller & Chivens
spectrograph (+ CCD) on the 1.8-m telescope at Cima Ekar.  The object
is indeed a supernova with a relatively blue continuum, broad emissions
measured at 498, 534, 569 and 638 nm and two absorptions at 617 and 668
nm.  There seems to be a strong resemblance to the spectrum of normal
type Ia supernovae (e.g., SN 1989B) about 2 weeks past maximum.
Assuming an average expansion velocity for the supernova's envelope,
the redshift deduced from the Si II doublet is z about 0.09.


1992 HE
     Improved orbital elements from MPC 20644:

                    Epoch = 1992 June 27.0 TT
     T = 1992 June 21.184 TT          Peri. = 262.600
     e = 0.57177                      Node  =  27.321   2000.0
     q = 0.95963 AU                   Incl. =  37.370
       a =  2.24094 AU     n = 0.293805     P =   3.35 years

1992 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      V
Aug. 26     4 18.90    - 6 45.6    0.742    1.269   91.5   52.7     15.8
Sept. 5     4 09.06    - 2 09.7    0.707    1.347  102.0   47.1     15.7
     15     3 52.74    + 2 45.4    0.674    1.426  114.7   39.8     15.5
     25     3 28.83    + 7 56.4    0.653    1.506  129.6   30.9     15.3
Oct.  5     2 57.81    +13 02.2    0.654    1.586  146.1   20.6     15.1
     15     2 22.94    +17 26.1    0.687    1.665  162.6   10.3     15.0
     25     1 49.45    +20 39.3    0.754    1.743  171.2    5.0     15.0


1992 September 2               (5601)              Brian G. Marsden

Read IAUC 5600 SEARCH Read IAUC 5602

View IAUC 5601 in .dvi or .ps format.

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

Valid HTML 4.01!