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IAUC 7234: 1999di, 1999dj; C/1999 P2; C/1999 N2; Corr

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IAUC number

                                                  Circular No. 7234
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)

SUPERNOVAE 1999di AND 1999dj
     T. Puckett and A. Langoussis, Mountain Town, GA, report the discovery
of two apparent supernovae on unfiltered CCD frames taken with the
Puckett Observatory 0.60-m automated supernova patrol telescope:

SN       1999 UT       R.A.  (2000)  Decl.    Mag.     Offset
1999di  Aug.  8.38   1 59 54.86  +23 38 22.7  18.0   5".2 E, 17".0 S
1999dj  Aug.  8.40   1 48 10.95  +35 23 47.2  17.8   1".5 W, 7".4 S

The limiting magnitude of both discovery images was 20.0.  SN 1999di
in NGC 776 was confirmed on an image taken on Aug. 9.39 UT.
The object does not appear on a second-generation Palomar Sky Survey
(PSS II) plate (limiting magnitude 20.3) taken on 1991 Oct. 10 UT.
SN 1999dj in UGC 1258 was confirmed on an image taken on Aug. 9.40 UT
and does not appear on a PSS II plate (limiting magnitude 20.2) taken
on 1989 Nov. 19.

COMET C/1999 P2 (SOHO)
     D. Lewis, University of Birmingham, reports observations of another
apparent Kreutz sugrazing comet discovered by K. Schenk in images taken
with the C3 coronagraph aboard SOHO.  Astrometric measurements made by
Lewis (and reduced by G. V. Williams), together with orbital elements by
Williams are given on MPEC 1999-P26.

     1999 UT            R.A. (2000) Decl.
     Aug. 5.362        8 41.2       +15 39

COMET C/1999 N2 (LYNN)
     Total visual magnitudes and coma diameters:
July 26.46, 7.5, - (A. Pearce, Nedlands, W. Australia, 20 x 80 binoculars);
30.89, 7.7, 6'.0 (Jose G. de S. Aguiar, Campinas, Brazil, 11 x 80 binoculars);
Aug. 1.48, 7.3, 7' (Y. Nagai, Yamanashi, Japan, 12 x 50 binoculars);
2.07, 7.6, 3' (J. Bortle, Stormville, NY, 20 x 80 binoculars);
2.87, 7.6, 6' (J. Carvajal, Madrid, Spain, 0.10-m refractor);
6.90, 7.8, ~ 4' (R. J. Bouma, Groningen, The Netherlands, 0.16-m reflector).

     On IAUC 7233 the 'original' revolution period of C/1999 H1 (Lee)
should read about 21000 years.

                      (C) Copyright 1999 CBAT
1999 August 9                  (7234)              Gareth V. Williams

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