Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8297: S/2004 (4674) 1; 2004ak, 2004al,, 2004am; C/2002 T7

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 8296 SEARCH Read IAUC 8298

View IAUC 8297 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 8297
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)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


S/2004 (4674) 1
     W. J. Merline, Southwest Research Institute (SwRI); P. M.
Tamblyn, Binary Astronomy and SwRI; C. Dumas, European Southern
Observatory (ESO); F. Menard, Observatoire de Grenoble; L. M. Close,
University of Arizona; C. R. Chapman, SwRI; G. Duvert, Observatoire
de Grenoble; and N. Ageorges, ESO, report the discovery on Mar. 4.2
UT of a satellite of minor planet (4674) Pauling from J-, H-, and
K_s-band imaging with the ESO 8-m Very Large Telescope UT4/YEPUN (+
NAOS/CONICA adaptive-optics system) on Cerro Paranal.  On Mar.
4.2278, the companion was at separation 0".39 (projected separation
250 km) in p.a. 308 deg.  The K_s brightness difference is about
2.5 mag, giving an estimated diameter of the satellite of about 2.5
km (assumed diameter of the primary being 8 km).


SUPERNOVAE 2004ak, 2004al, AND 2004am
     Further to IAUC 8288, D. Singer, H. Pugh, and W. Li report the
LOSS discovery of three apparent supernovae on unfiltered KAIT
images:

SN      2004 UT        R.A.  (2000.0)  Decl.   Mag.     Offset
2004ak   Feb. 29.24   8 29 47.57  +48 46 22.9  18.4   26".4 W, 26".9 S
2004al   Mar.  3.23   9 37 06.66  -22 10 18.9  16.8   7".0 W, 0".9 S
2004am   Mar.  5.23   9 55 46.61  +69 40 38.1  17.0   30" W, 7" S

Additional KAIT magnitudes for SN 2004ak in UGC 4436, Jan. 17.31
UT, [19.5; Mar. 5.30, 17.6.  Additional KAIT magnitudes for SN
2004al in ESO 565-G25, Feb. 8.36, [18.0; Mar. 4.23, 16.6.  SN
2004am in M82 (= NGC 3034) is present on numerous earlier KAIT
images, as indicated by the following measured magnitudes, but it
sits on a bright (H II?) spot (which was subtracted for the derived
magnitudes), causing the detection software to miss the new object:
2003 May 2.17 UT, [19.0; Nov. 21.57, 16.0; Nov. 23.54, 16.1; Dec.
28.43, 16.3; 2004 Jan. 2.49, 16.4; Jan. 17.36, 16.4; Jan. 21.40,
16.4; Jan. 30.32, 16.4; Feb. 5.32, 16.4.


COMET C/2002 T7 (LINEAR)
     Visual total-magnitude estimates:  Feb. 8.82 UT, 7.3 (J. J.
Gonzalez, Asturias, Spain, 7x50 binoculars); 11.11, 7.1 (C. S.
Morris, Fillmore, CA, 10x50 binoculars); 14.82, 6.9 (J. Carvajal,
Avila, Spain, 6x30 binoculars); 21.79, 6.9 (T. Karhula, Virsbo,
Sweden, 7x50 binoculars); 28.80, 6.8 (B. H. Granslo, Eina, Norway,
0.07-m refractor); Mar. 1.82, 6.7 (Gonzalez).

                      (C) Copyright 2004 CBAT
2004 March 5                   (8297)            Daniel W. E. Green

Read IAUC 8296 SEARCH Read IAUC 8298

View IAUC 8297 in .dvi or .ps format.

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

Valid HTML 4.01!