Central Bureau for Astronomical Telegrams
IAUC 3840: 1983l; Var STAR IN Ara; GK Per
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Read IAUC 3841
Circular No. 3840
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 617-864-5758
COMET CERNIS (1983l)
Yu. V. Batrakov, Institute for Theoretical Astronomy, Leningrad,
telexes that Kazimeras Cernis, Vilnius Observatory, has
discovered a comet. The following observations are available:
1983 UT R.A. (1950.0) Decl. m1 Observer
July 19.02 2 43.0 +11 47 12 Cernis
20.02 2 42.9 +11 35 12 "
21.017 2 42.8 +11 24 11 "
21.32 2 42.8 +11 15 11.5 di Cicco
K. Cernis (Vilnius Observatory's Majdanak Mountain Station, Uzbek
S.S.R.). 0.48-m f/5 reflector, 65 x. Object diffuse with
condensation, coma diameter 1'2 (July 19 and 20); no tail.
D. di Cicco (Sudbury, MA). 0.28-m reflector. Object diffuse with
condensation, coma diameter 1'6; no tail.
VARIABLE STAR IN ARA
On July 11 W. Liller, Vina del Mar, Chile, reported his
discovery of a possible nova in Ara, 0m3 east and 14' south of HR
6197. His visual magnitude estimates were: June 30.98 UT, ~ 10.0;
July 10.13, 10.5. Attempts to confirm the object in South Africa,
Australia and New Zealand were not immediately successful, but E.
Budding, Carter Observatory, notes that a star at the specified
position on a 103a-O exposure on July 14.36 UT by A. C. Gilmore at
Mount John Observatory is fainter on the ESO-J chart and not
apparent on the Franklin-Adams chart; on the other hand, the object
appears at its present brightness on the Vehrenberg chart and
relatively brighter on the Papadopoulos visual chart. P. M.
Kilmartin has measured the following position from the July 14
plate: R.A. = 16h39m39s83, Decl. = -46deg13'05" 4 (equinox 1950.0).
GK PERSEI
J. Mattei, AAVSO, informs us that another minor outburst (cf.
IAUC 2740, 3240, 3574) of this 1901 nova has started, as indicated
by the following visual magnitude estimates: Apr. 2.0 UT, 13.2 (J.
Bortle, Stormville, NY); 4.9, 13.4 (G. M. Hurst, Wellingborough,
England); 8.9, 13.5 (Hurst); 14.1, 13.3 (Bortle); 18.1, 13.3
(Bortle); July 11.32, 12.6 (Bortle); 14.32, 12.2 (Bortle);
17.32, 12.0 (Bortle); 19.30, 12.0 (Bortle).
1983 July 21 (3840) Brian G. Marsden
Read IAUC 3841
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