Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 4293: 1986q; N And 1986; NOTICE RE Tlgms

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 4292 SEARCH Read IAUC 4294
IAUC number 

                                                  Circular No. 4293
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


PERIODIC COMET DU TOIT-HARTLEY (1986q)
     This comet has been recovered by J. V. Scotti, Lunar and
Planetary Laboratory, with the SPACEWATCH camera 0.91-m telescope
on Kitt Peak as shown below.  There is some indication of diffuseness.
The correction to the prediction on MPC 10519 (by S. Nakano
for the principal component of the comet in 1982) is delta T = -0.3 day.

     1986 UT              R.A. (1950) Decl.             m1
     Dec. 27.33888      6 57 03.42     +25 26 16.5
          27.34874      6 57 02.63     +25 26 17.3     19.3
          27.36418      6 57 01.46     +25 26 18.1
          28.31181      6 55 49.37     +25 27 08.3
          28.33734      6 55 47.33     +25 27 10.6
          28.35090      6 55 46.22     +25 27 11.8


NOVA ANDROMEDAE 1986
     Y. Sheffer, University of Texas, writes: "I obtained a single
coude Reticon spectrum at 3 km/s per diode resolution on Dec.
16.199 UT with the 2.1-m Struve reflector at the McDonald Observatory.
The observed coverage is from (heliocentric) -3100 to +1500
km/s at H alpha.  The profile seems to be a blend of at least four
components, and it peaks at -280 km/s.  HWHM (= FWHM/2) is 870 km/s,
which includes an unknown contribution from two components at about
-950 and +700 km/s.  These may prove to be [N II] 654.8 and 658.3
nm, both at about -250 km/s.  The bluemost component of the profile
terminates at a (local) continuum at -2180 km/s.  Atmospheric and
instrumental conditions were not spectrophotometric at the time."
     UBV photoelectric observations made by K. Krisciunas at Mauna
Kea: 1986 Dec. 22.311 UT, V = 8.76 +/- 0.03; 22.299, B = 9.00 +/- 0.04:
28.286, V = 9.26 +/- 0.02; 28.276, B = 9.54 +/- 0.04.  Comparison star
7 And (V = 4.53, B-V = +0.30).  The B errors are estimates.


NOTICE CONCERNING TELEGRAMS
     It is once again an 'open season' for making changes in the
list of subscribers to the Central Bureau's telegram service.
Subscribers who wish to make address changes, category changes,
etc., are requested to inform us of said changes by Feb. 28.  We
regret that a charge of $50.00 must be made for address changes
and deletions (but not additions) outside these biannual seasons.


1987 January 5                 (4293)              Brian G. Marsden

Read IAUC 4292 SEARCH Read IAUC 4294

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

Valid HTML 4.01!