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Circular No. 5945
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 SAGITTARII 1994
M. Della Valle, Padua; P. Molaro, Osservatorio Astronomico di
Trieste; J. Casares, Astrophysics Department, Oxford University;
and E. Martin, Instituto de Astrofisica de Canarias, Tenerife,
report: "Spectrograms (range 380-860 nm, resolution about 3 nm)
obtained on Mar. 7.2 UT with the New Technology Telescope (+ EMMI) at
La Silla suggest this object to be a nova caught during its early
decline. The spectrum shows H-alpha and Na I in emission, flanked
by blueshifted P-Cyg profiles, superimposed onto a strong continuum.
The mean expansion velocity derived from the minimum of the P-
Cyg absorptions is about 2200 km/s."
A0535+26
R. B. Wilson, B. A. Harmon, and G. J. Fishman, Marshall Space
Flight Center, NASA; and M. H. Finger, Universities Space Research
Association, report for the Compton Gamma Ray Observatory BATSE
team: "The strong outburst from A0535+26 (IAUC 5931, 5933, 5934)
peaked on Feb. 18, reaching a total intensity of about 8 Crab in
the band 20-40 keV. The phase-averaged pulsed flux then was 1.8
Crab (total). The intensity has declined approximately linearly
since then, reaching about 4 Crab (total) and 1.1 Crab (pulsed) on
Feb. 26. During the peak of its outburst the pulse frequency was
increasing at a rate of about 1.2 x 10E-11 sE-2 or P/P(dot) about
25 yr."
NOVA CASSIOPEIAE 1993
Photoelectric photometry by M. Winiarski and M. Kurpinska-
Winiarska, Cracow Astronomical Observatory (W; comparison star SAO
35665: V = 7.24, B-V = +0.17) and H. Mikuz, Ljubljana, Slovenia (M;
IAUC 5929): Feb. 13.784 UT, V = 9.16 +/- 0.02, B-V = +0.24 +/-
0.02 (W); 14.766, 9.31 +/- 0.01, +0.25 +/- 0.01 (W); 15.739, 9.82
+/- 0.01, +0.28 +/- 0.01 (W); 16.242, 10.07 +/- 0.02, +0.26 +/-
0.02 (W); 17.279, 10.41 +/- 0.05, +0.34 +/- 0.06 (W); 25.83, 14.27
+/- 0.04, - (M); Mar. 4.80, 15.03 +/- 0.05, - (M).
PERIODIC COMET SCHWASSMANN-WACHMANN 1
Total visual magnitude estimates by L. Szentasko at
Veresegyhaz, Hungary (0.33-m reflector): Feb. 16.79 UT, 13.0; Mar.
3.81, 12.3; 5.79, 13.0.
1994 March 7 (5945) Daniel W. E. Green
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