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IAUC 8368: 2004cz; URANUS; V5114 Sgr

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                                                  Circular No. 8368
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)


SUPERNOVA 2004cz IN ESO 407-G9
     C. Jacques, Belo Horizonte, Brazil; and T. Napoleao, Sao Paulo,
Brazil, report the discovery of an apparent supernova (mag 15.0) on
unfiltered CCD images taken with a 0.30-m reflector on June 26.33
and July 4.27 UT.  The new object is located at R.A. = 23h12m43s.22,
Decl. = -37o12'58".7 (equinox 2000.0), which is 24".6 west and
30".4 south of the center of ESO 407-G9.  Nothing is visible at
this location on a CCD image taken on 2001 Oct. 17.09 (limiting mag
18.6) or on a red Palomar Survey image from 1980.


URANUS
     H. B. Hammel, Space Science Institute; and I. de Pater,
University of California at Berkeley, report the discovery that a
discrete cloud feature in the southern hemisphere of Uranus has
become detectable in K'-band adaptive-optics imaging on July 4.5 UT
with the 10-m Keck II Telescope (+ NIRC2/AO) on Mauna Kea.  This is
the first known sighting of a southern-hemispheric feature at this
wavelength; all other 2.2-micron-bright Uranian features have been
seen in the planet's northern hemisphere.  The feature was tracked
for 3.5 hr as it transited the planetary disk, and throughout that
time it remained co-located with the bright core of a large bright
feature (lat. -38 +/- 2 deg, long. about 93 +/- 2 deg) in J- and
H-band images.  Detection at K' indicates that convective activity
in the feature's bright core has reached a higher altitude than has
the activity in other southern features.


V5114 SAGITTARII
     D. K. Lynch, R. J. Rudy, S. Mazuk, and C. C. Venturini,
Aerospace Corporation; R. C. Puetter, University of California
at San Diego; and R. B. Perry, Langley Research Center, NASA,
report 0.4-2.5-micron spectroscopy of V5114 Sgr on June 22.4 UT
using the enhanced Aerospace NIRIS spectrograph on the Lick
Observatory 3-m telescope.  The nova is well into its coronal phase,
showing lines of [S VIII] 0.9911-micron, [Si IX] 1.2517-microns,
and [Si VI] 1.9641-microns.  [Ca VIII] 2.3205-microns was not seen.
The Lyman-beta-fluoresced O I lines at 1.1287 and 0.8446 microns
were strong.  Also present were the unidentified novae lines at
1.1114, 1.1900, 1.5545, and 2.0996 microns.  Balmer, Paschen, and
Bracket lines are evident, and He I 1.0830-microns is the strongest
line in the spectrum.  The lines were flat-topped or slightly
doubled, indicating spherical or nearly spherical expansion with
FWHM approximately 2200 km/s.

                      (C) Copyright 2004 CBAT
2004 July 6                    (8368)            Daniel W. E. Green

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