Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8395: C/2004 Q2; 2004dy, 2004dz

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 8394 SEARCH Read IAUC 8396

View IAUC 8395 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 8395
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)


COMET C/2004 Q2 (MACHHOLZ)
     J. J. Gonzalez, Leon, Spain, reports that a visual observation
made from Alto del Castro with a 0.20-m reflector on Aug. 28.16 UT
yielded total mag 10.9 and coma diameter 2'.3.  P. Birtwhistle,
Great Shefford, Berkshire, England, reports that CCD images
obtained with a 0.30-m f/6.3 Schmidt-Cassegrain reflector on Aug.
28.15 show a coma of diameter 70" and a broad tail 5' long in p.a.
240 deg.  R. Behrend, Geneva Observatory, reports that CCD images
by C. Vuissoz and himself with the 1.20-m Euler reflector on Aug.
28.4 show a coma diameter of 1' and a 3' tail in p.a. 240 deg.
     Additional astrometry and the following preliminary parabolic
orbital elements appear on MPEC 2004-Q58 (ephemeris:  H = 6.0, n =
7.5).

     T = 2005 Jan. 27.370 TT          Peri. =  14.807
                                      Node  =  95.921   2000.0
     q = 1.28614 AU                   Incl. =  38.326

2004 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase   Mag.
Aug. 23     4 10.35   -21 59.7   2.268   2.545   93.9   23.3   10.8
     28     4 16.91   -22 24.6   2.174   2.492   96.0   23.8   10.7
Sept. 2     4 23.31   -22 52.1   2.082   2.438   98.1   24.2   10.5
      7     4 29.51   -23 22.3   1.991   2.385  100.2   24.6   10.3
     12     4 35.48   -23 55.0   1.901   2.331  102.2   25.0   10.2
     17     4 41.18   -24 29.8   1.813   2.278  104.2   25.3   10.0
     22     4 46.56   -25 06.3   1.727   2.225  106.1   25.7    9.8
     27     4 51.58   -25 44.2   1.642   2.172  108.0   26.0    9.6
Oct.  2     4 56.20   -26 22.9   1.559   2.120  109.9   26.4    9.4


SUPERNOVAE 2004dy AND 2004dz
     M. Ganeshalingam, M. Moore, and W. Li report the LOSS (cf.
IAUC 8388) discoveries of two apparent supernovae on unfiltered
KAIT images:

SN       2004 UT        R.A.  (2000.0)  Decl.   Mag.     Offset
2004dy   Aug. 25.25   21 11 30.13  - 2 02 13.3   19.4   5".8 W, 16".8 S
2004dz   Aug. 20.52    2 57 36.66  -10 10 52.8   18.6   0".3 E, 2".9 N

Additional KAIT magnitudes:  SN 2004dy in IC 5090, Aug. 21.24 UT,
[20.0; 27.26, 18.8.  SN 2004dz, 2003 Oct. 29.43, [20.0; Aug. 27.55,
18.6.

                      (C) Copyright 2004 CBAT
2004 August 28                 (8395)            Daniel W. E. Green

Read IAUC 8394 SEARCH Read IAUC 8396

View IAUC 8395 in .dvi or .ps format.

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

Valid HTML 4.01!