Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 5868: N Lup 1993; N Sgr 1993; 1993p

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 5867 SEARCH Read IAUC 5869

View IAUC 5868 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 5868
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)


NOVA LUPI 1993
     R. H. McNaught and G. J. Garradd, Anglo-Australian Observatory,
report a precise position of this apparent nova (cf. IAUC 5867)
from an exposure obtained with the Uppsala Southern Schmidt
telescope on Sept. 21.44 UT:  R.A. = 14h31m50s.20, Decl. =
-51o10'33".1 (equinox 2000.0; uncertainty 0".3 in each coordinate).
The corresponding 1950.0 position is R.A. = 14h28m26s.04, Decl. =
-50o57'18".2.  Visual comparison of this exposure with the ESO B
and R and SERC J surveys yields no candidate for this object to mag
17, and no stars in the immediate vicinity display obvious color.
     CCD photometry by W. Liller, Vina del Mar, Chile: Sept. 19.987
UT, V = 7.97 +/- 0.10, B-V = +0.18 +/- 0.15; 20.994, V = 8.47 +/-
0.02 (standard stars from nearby E5 region).  A low-resolution
objective prism spectrogram obtained with a 0.20-m reflector shows
similarity to the spectra of other novae, including N Sgr 1993; the
intensity of the H-alpha feature and nebular lines is at least
twice the intensity of the surrounding continuum.


NOVA SAGITTARII 1993
     Liller also reports the following additional CCD magnitudes:
Sept. 17.058 UT, V = 8.51 +/- 0.05; 18.015, 8.47; 19.041, 8.27;
19.987, 8.75.  He further notes that, since Sept. 17.1, the intensity
of the H-alpha feature plus neighboring nebular lines has
increased from 3.0 to 4.2 times the continuum intensity.
     Visual magnitude estimates, some forwarded by J. A. Mattei,
AAVSO:  Sept. 17.70 UT, 8.5 (L. Szentasko, Budapest, Hungary);
18.14, 8.5 (P. Collins, Scottsdale, AZ); 18.792, 7.7 (J. Hers,
Sedgefield, S. Africa); 18.8, 8.6 (D. Overbeek, Edenvale, S.
Africa); 18.85, 8.2 (A. Pereira, Cabo da Roca, Portugal); 19.19,
8.2 (R. Royer, Lakewood, CA); 19.33, 8.1 (A. F. Jones, Nelson, New
Zealand); 19.80, 8.4 (P. Schmeer, Bischmisheim, Germany); 19.85,
8.8 (Pereira); 20.02, 8.8 (M. Adams, Melbourne, FL); 20.05, 8.1 (C.
Scovil, Stamford, CT); 20.06, 8.3 (J. Griese, Rocky Hill, CT).


COMET MUELLER (1993p)
     Total visual magnitude estimates:  Aug. 24.64 UT, 13.8 (A.
Nakamura, Kuma, Japan, 0.60-m reflector); 27.65, 13.9 (Nakamura);
Sept. 17.98, 13.4 (B. H. Granslo, Fjellhamar, Norway, 0.20-m
reflector); 19.18, 13.5 (C. S. Morris, Lockwood Valley, CA, 0.51-m
reflector).


1993 September 21              (5868)            Daniel W. E. Green

Read IAUC 5867 SEARCH Read IAUC 5869

View IAUC 5868 in .dvi or .ps format.

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

Valid HTML 4.01!