Central Bureau for Astronomical Telegrams
IAUC 3032: N Sge 1977; NQ Vul (N Vul 1976); 1976k
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Read IAUC 3033
Circular No. 3032
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK Telex: 921428
Telephone: (617) 864-5758
NOVA SAGITTAE 1977
A. Vittone, Asiago Astrophysical Observatory, writes: "Spectrograms
were obtained (dispersion 60 A/mm at H-gamma) on Jan. 14 with the
120-cm telescope at Asiago. The spectrum of the nova shows broad
emissions of H, Fe II (multiplets 42, 48, 49, 73 and 74), Na I
5892 A and O I 7772 and 8446 A. The emissions are bordered on the
blue side by absorption components that indicate a mean expansion
velocity of -1200 km/s."
P. A. Wehinger and S. Wyckoff, Royal Greenwich Observatory,
report that an image-tube spectrogram (dispersion 240 A/mm, range
3300-7000 A) was obtained on Jan. 19.7 UT with the 250-cm reflector.
The weakly exposed spectrum resembled that of a nova in its early
decline stage some 2-3 magnitudes past maximum light. The strongest
features of the spectrum were broad Balmer emission lines.
Further to the note on IAUC 3030, R. W. Argyle informs us that
the Greenwich plate was measured by E. D. Clements; the position of
the nova was determined relative to 17 nearby AGK3 stars, the standard
error of unit weight being 0".46. At the corresponding position
on the Palomar Sky Survey print there are three stars at the plate
limit, i.e. of photographic magnitude about 20.0.
Further visual magnitude estimates: Jan. 19.25 UT, 8.8 (J.
Muirden, Exeter, England); 23.45, 9.1 (J. Bortle, Brooks Observatory);
24.56, 9.1 (J. Morgan, Prescott, Arizona).
NQ VULPECULAE (NOVA VULPECULAE 1976)
Further visual magnitude estimates suggest a slight brightening:
Jan. 11.96 UT, 12.6 (J. Bortle, Brooks Observatory); 23.45,
12.0 (Bortle); 24.56, 11.7 (J. Morgan, Prescott, Arizona).
COMET LOVAS (1976k)
The following precise positions were obtained by T. Seki at
the Kochi Observatory, Geisei Station:
1976 UT R. A. (1950) Decl.
Dec. 26.79722 8 09 23.69 +73 27 44.1
27.69583 8 06 53.55 +73 26 45.7
30.79722 7 58 11.37 +73 21 38.9
1977 January 26 (3032) Brian G. Marsden
Read IAUC 3033
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