Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8539: 9P; 2005ch; Var STAR IN Nor; P/2005 JY_126

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 8538  SEARCH Read IAUC 8540

View IAUC 8539 in .dvi, .ps or .PDF format.
IAUC number

                                                  Circular No. 8539
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 617-495-7440/7244/7444 (for emergency use only)

     H. U. Kaeufl, European Southern Observatory (ESO); T. Bonev,
Institute of Astronomy, Bulgarian Academy of Sciences and visiting
astronomer at ESO; H. Boenhardt, Max Planck Institute for Solar
System Research; Y. R. Fernandez, Institute of Astronomy,
University of Hawaii; and C. Lisse, University of Maryland, report
that mid-infrared images of comet 9P were obtained at the ESO 3.6-m
telescope (+ TIMMI2; spatially resolved at a sub-arcsec level), and
Bessel R-band images were obtained with the ESO 3.5-m New
Technology Telescope (+ EMMI).  Fluxes derived from mid-infrared
images at 8.9, 9.8, 10.4, and 11.9 micron, respectively, in a
circular aperture of radius 3" in units of 10**-15 W m**-2
micron**-1:  Feb. 23, 6.0, 5.2, 6.6, 6.0; Mar. 25, 16.4, 20.0, 20.0,
22.6.  R-band (Bessel) fluxes measured in a circular aperture of
radius 3", also in units of 10**-15 W m**-2 micron**-1:  Feb. 23,
13; Mar. 25, 32.  A prominent straight jet is seen in the R-band
images at p.a. 220 and 215 deg on Feb. 23 and Mar. 25, respectively.

     Further to IAUC 8537, E. S. Rykoff reports the discovery of an
apparent supernova in unfiltered CCD images taken on June 8.83 (at
mag about 15.8) and 9.56 UT (mag about 15.5) with the 0.45-m ROTSE-
IIIc telescope at the HESS site in Namibia and the ROTSE-IIIa
telescope at Siding Spring Observatory.  SN 2005ch is located at
R.A. = 14h22m06s.77, Decl. = +1o59'35".7 (equinox 2000.0), which is
0".9 north and 3".1 east of the core of the apparent host galaxy
(whose Sloan Digital Sky Survey magnitude is given as g' = 20.0).
Nothing is visible at this location on ROTSE-IIIc images taken on
May 27.86 (limiting mag about 17.5).

     Further to IAUC 8505, G. Pojmanski announces the discovery on
ASAS images of a variable star located at R.A. = 16h00m48s, Decl. =
-48o46'.2 (equinox 2000.0).  ASAS V magnitudes for the variable:
June 4.316 UT, [14 (limiting mag presumed from earlier publications);
9.085, 12.57; 9.235, 12.66; 9.288, 12.82; 9.296, 12.67; 9.321, 12.81.
A USNO-A1.0 star of red mag 18.4 is located at position end figures
48s.233, 07".21.

     Corrigendum.  On IAUC 8537, line 8, FOR  p.a. 65 deg.  READ
p.a. 245 deg.

                      (C) Copyright 2005 CBAT
2005 June 9                    (8539)            Daniel W. E. Green

Read IAUC 8538  SEARCH Read IAUC 8540

View IAUC 8539 in .dvi, .ps or .PDF format.

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

Valid HTML 4.01!