Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 7288: 1999el; C/1995 O1

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 7287 SEARCH Read IAUC 7289

View IAUC 7288 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 7288
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVA 1999el IN NGC 6951
    L. Cao, Y. L. Qiu, Q. Y. Qiao, and J. Y. Hu, Beijing
Astronomical Observatory (BAO), on behalf of the BAO Supernova
Survey, report the discovery of an apparent supernova (mag about
15.4) in NGC 6951 on an unfiltered CCD frame taken on Oct. 20.45 UT
with a 0.60-m telescope at Xinglong station; an image taken on Oct.
21.44 yields mag about 15.0 (there is a knot at the location of SN
1999el on the Digital Sky Survey image and on previous BAO images,
and the magnitude estimates include the brightness of the supernova
and the knot).  SN 1999el is located at R.A. = 20h37m17s.83, Decl.
= +66o06'11".5 (equinox 2000.0), which is 21".8 east and 8".4 south
of the nucleus of NGC 6951.  Nothing appears on images taken on Oct.
19.2 by KAIT to limiting mag 18.0 (according to W. Li, University
of California at Berkeley) or on Oct. 19.44 at BAO.  Li adds that
on Oct. 22.2, SN 1999el appeared at mag 15.2 on a KAIT image, and
they find the supernova to be 21".7 east and 8".6 south of the
galaxy nucleus.  A KAIT image taken on 1998 Sept. 13 (limiting mag
about 20.5), shows two nearby foreground stars:  one (mag about
17.3) located about 23".9 east and 8".4 south of the nucleus, and
another (mag about 18.6) located about 19".4 east and 8".8 south of
the nucleus.  A. Filippenko (Berkeley) has identified a BAO
spectrum of SN 1999el as that of a very early type-IIn supernova.


COMET C/1995 O1 (HALE-BOPP)
     A. Pearce, Nedlands, W. Australia, reports that visual
observations with a 0.41-m reflector on Oct. 20.84 and 21.84 UT
show a bright 14th-mag condensation that was not visible on Oct.
18, though m_1 has not changed much.  CCD observations by I. P.
Griffin and M. Bos, obtained with the Auckland Observatory 0.5-m
telescope on Oct. 15 and 22, also show a significantly more
condensed coma on the second night.
     Ephemeris extension to IAUC 7252:

1999 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Oct. 29     7 04.2    -74 32.8   9.765   9.670   81.6    5.8   12.8
Nov.  8     6 56.5    -75 34.1   9.851   9.743   80.9    5.8   12.9
     18     6 45.5    -76 27.5   9.937   9.816   80.2    5.7   12.9
     28     6 31.1    -77 10.5  10.020   9.889   79.5    5.6   13.0
Dec.  8     6 13.9    -77 40.7  10.102   9.961   79.0    5.6   13.0
     18     5 54.9    -77 56.3  10.180  10.034   78.7    5.5   13.1
     28     5 35.6    -77 56.9  10.256  10.106   78.5    5.5   13.1

                      (C) Copyright 1999 CBAT
1999 October 22                (7288)            Daniel W. E. Green

Read IAUC 7287 SEARCH Read IAUC 7289

View IAUC 7288 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!