Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 3547: SN IN NGC 7448; Prob. COMET LOVAS; SS 433; NOTICE TO SUBSCRIBERS

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 3546 SEARCH Read IAUC 3548
IAUC number 

                                                  Circular No. 3547
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 617-864-5758


SUPERNOVA IN NGC 7448
     In a report communicated by F. P. Aksenov, Sternberg Astronomical
Institute, V. P. Dzhapiashvili, Abastumani Astrophysical Observatory,
informs us that Inasaridze has discovered a supernova 27"
west and 4" north of the nucleus of NGC 7448 (R.A. =22h57m.6, Decl. =
+15o43', equinox 1950.0).  The object faded from mpg = 13.5 on Oct.
8.779 UT to mpg = 17.5 on Dec. 2.717 UT.


PROBABLE COMET LOVAS
     B. Szeidl, Konkoly Observatory, cables that Miklos Lovas has
discovered a probable comet as follows:

     1980 UT          R. A. (1950) Decl.      m1
     Dec.  5.06213    9 11.8     +33 40       17

Daily motion: dR.A. = +0m.40, dDecl. = -1'.  The object is described as
being diffuse, with condensation, nothing reported about a tail.


SS 433
     G. W. Collins II and G. H. Newsom, Department of Astronomy,
Ohio State University, report that the radial-velocity data from a
variety of observers, spanning the interval 1978 June 29 to 1980
Sept. 5, indicate that the '165-day' period of SS 433 is shortening
at a surprisingly rapid rate (dP/dt = 0.011 +/- 0.002 days/day), implying
a very short lifetime of several decades.  The period of the 6.06-day
variation (IAUC 3459) also appears to be shortening, but this
decrease is considerably less significant [dP/dt = (-4.4 +/- 3.1) x 10**-5
days/day].


NOTICE TO SUBSCRIBERS
     Beginning with this issue, the regular (invoiced) and special
(not invoiced) subscription rates to these Circulars are increased
to 45c and 27c, respectively.  Normal payments for special
subscribers will be $13.50 for 50 issues or $27.00 for 100 issues,
although other amounts can be accepted; the last four digits of the
12-figure number on the address label show the Circular No. up to
which payment has been made.  For regular subscribers the last four
digits indicate the billing date.  Back issues cost 45c each.


1980 December 8                (3547)              Brian G. Marsden

Read IAUC 3546 SEARCH Read IAUC 3548

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

Valid HTML 4.01!