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IAUC 3857: epsilon Aur; KR Aur; R CrB; U Aqr; 1983e; 1983d

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IAUC number 

                                                  Circular No. 3857
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


epsilon AURIGAE
     M. Parthasarathy and D. L. Lambert, McDonald Observatory,
communicate the following correction to their note on IAUC 3848:
"Observations of epsilon Aur during totality phase show variation in the
strength of the K 770-nm resonance line.  W-lambda was 0.055 nm during
1982 Dec.-1983 Mar. and 0.043 nm during 1983 Apr.-July.  The H-alpha
line is broad, and the emission in the wings has disappeared."


KR AURIGAE
     Visual magnitude estimates by J. Bortle, Stormville, NY: Aug.
10.37 UT, 12.8; 14.13, 12.9; 16.12, 13.0.  When last observed
before conjunction this star was somewhat fainter (cf. IAUC 3793).


R CORONAE BOREALIS
     J. Mattei, AAVSO, informs us that recent observations indicate
that this object has started to fade.  Visual magnitude estimates:
Aug. 10.25 UT, 6.3 (P. Collins, Cardiff, CA); 14.1, 5.9 (J.
Bortle, Stormville, NY); 22.1, 6.2 (Bortle); 23.19, 6.4 (Collins);
24.07, 6.6 (Bortle); 24.15, 6.6 (Collins); 25.07, 6.6 (M. Mattei,
Littleton, MA); 25.10, 6.8 (D. Weier, Madison, WI).  The last
minimum was from 1977 Mar. (IAUC 3043, 3050) to 1978 Apr.


U AQUARII
     Visual magnitude estimates by J. Bortle, Stormville, NY: July
21.81 UT, 12.8; Aug. 3.10, 12.3; 10.37, 12.1; 16.12, 12.1.


COMET SUGANO-SAIGUSA-FUJIKAWA (1983e)
     Estimates of total visual magnitude and coma diameter by D.
Seargent, The Entrance, NSW (7 x 50 binoculars): June 8.77, 7.7,
16'; 9.77, 7.6, ~ 12'; 10.77, 6.8, > 16'; 11.69, 6.8, 26'; 12.57,
6.3, ~ 43'; 13.46, 6.8, 39'; 14.46, 6.5, 34'; 16.54, 7.8, 17'.


COMET IRAS-ARAKI-ALCOCK (1983d)
     Estimates of total visual magnitude and coma diameter by
V. F. de Assis Neto, Sao Francisco de Oliveira, Brazil (10 x 70
binoculars): June 7.95 UT, 8.5, 1'4; 12.92, 9.2, -.


1983 August 29                 (3857)              Brian G. Marsden

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