Central Bureau for Astronomical Telegrams
IAUC 2215: N Ser 1970; 1970a; 1969d; 1969a
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Circular No. 2215
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
Western Union: RAPID SATELLITE CAMBMASS
NOVA SERPENTIS 1970
M. S. Burkhead, R. K. Honeycutt, V. J. Lee, W. S. Penhallow
and M. A. Sands, Goethe Link Observatory, Indiana Observatory,
telegraph the following photoelectric observation, obtained with a
41-cm telescope:
1970 UT V B - V U - B
Feb. 18.479 4.42 +1.14 +0.80
The standards were eta Ser and 74 Oph. Slit spectra at dispersion
130 A/mm were obtained with a 91-cm telescope. The spectrum
resembles late F with diffuse absorption features; no emission. The
radial velocity was -500 km/s.
Dr. Anne P. Cowley, Astronomy Department, University of
Michigan, telegraphs that on Feb. 19.4 the photographic region of the
spectrum (dispersion 75 A/mm) showed weak, rather narrow emissions
of H and Fe II, flanked by apprently single violet displaced F-type
absorption (radial velocity approximately -600 km/s). The
absorption spectrum shows strong Fe II and Ti II lines. The
magnitude was about 4.
Mr. K. Locher, Grut-Wetzikon, Switzerland, writes that the
non-appearance of the nova on a yellow-sensitive wide-field
photograph exposed on Jan. 18.23 UT shows that the V magnitude was
then fainter than 9.5.
The following visual estimates have been reported:
1970 UT mV Observer
Feb. 18.4 4.2 C. B. Ford (Wilton, Conn.)
20.42 4.6 J. Ashbrook (Weston, Mass.)
21.44 4.9 L. Jacchia (Cambridge, Mass.)
COMET DAIDO-FUJIKAWA (1970a)
Mr. T. Seki, Kochi Observatory, communicates the following
precise positions:
1970 UT R.A. (1950) Decl. Mag.
Feb. 4.87726 19 41 57.03 - 1 15 51.7
5.87517 19 48 53.77 - 2 26 01.8 5.5
5.87651 19 48 54.43 - 2 26 09.4
5.87795 19 48 55.03 - 2 26 14.1
6.87442 19 56 22.55 - 3 41 14.0 5.1
6.87581 19 56 23.17 - 3 41 19.4
8.87795 20 13 19.31 - 6 28 43.3
8.87928 20 13 20.44 - 6 28 51.0
9.87527 20 22 59.89 - 8 01 13.9 4
9.87789 20 23 01.49 - 8 01 29.3
COMET FUJIKAWA (1969d)
The following positions have been obtained at the Perth
Observatory, using the 33-cm f/10 astrographic telescope:
1969 UT R.A. (1950) Decl. Observer
Aug. 28.88194 7 01 31.16 +17 22 51.0 I. Nikoloff
28.89028 7 01 34.13 +17 22 51.8 "
Sept. 1.86806 7 23 17.05 +16 33 04.8 M. P. Candy
1.87363 7 23 18.10 +16 33 09.1 "
PERIODIC COMET FAYE (1969a)
The following precise positions have been reporteed:
1969/70 UT R.A. (1950) Decl. Mag. Observer
Oct. 17.02368 5 13 34.99 +14 21 20.4 12.5 Antal
17.04032 5 13 36.27 +14 21 06.1 "
18.00764 5 14 48.15 +14 10 00.7 12.5 "
18.04931 5 14 51.00 +14 09 33.7 "
18.05625 5 14 51.79 +14 09 26.7 "
Nov. 5.82987 5 30 00.05 +10 20 18.6 Harwood
7.79271 5 30 40.38 + 9 56 25.4 Harris
29.88818 5 28 07.18 + 6 13 13.5 Petrovicova
Dec. 2.06405 5 27 07.59 + 5 58 23.2 Mrkos
Jan. 4.93531 5 13 31.78 + 5 36 55.6 "
6.80137 5 13 25.03 + 5 45 25.1 Petrovicova
12.92366 5 13 45.11 + 6 17 46.7 "
14.00588 5 13 55.54 + 6 24 07.4 Mrkos
14.76081 5 14 04.60 + 6 28 32.5 Petrovicova
Feb. 3.79248 5 23 43.97 + 8 43 41.4 Mrkos
M. Antal (Skalnate Pleso Observatory). 30-cm f/5 astrograph.
Communicated by Dr. L. Pajdusakova. On the last plate the condensation
is very sharp, coma diameter 0'.5, faint tail of 1'.5.
D. Harwood and B. J. Harris (Perth Observatory, Bickley). 33-cm
f/10 astrograph.
Petrovicova and A. Mrkos (Klet Obs.). Communicated by J. M. Mohr.
B. Milet (Nice Observatory). Zeiss double astrograph.
1970 February 24 (2215) Brian G. Marsden
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