[IAUC] CBET 1699: 20090220 : SUPERNOVA 2009ah IN ESO 171-4
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Electronic Telegram No. 1699
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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SUPERNOVA 2009ah IN ESO 171-4
G. Pignata, J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P.
Lopez, S. Silva, G. Folatelli, D. Iturra, R. Cartier, F. Forster, and S.
Marchi, Universidad de Chile; B. Conuel, Wesleyan University; and D. Reichart,
K. Ivarsen, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze, University of
North Carolina at Chapel Hill, on behalf of the CHASE project, report the
discovery of an apparent supernova (mag approximately 16.0 +/- 0.2) on an
unfiltered image taken on Feb. 19.22 UT with the 0.41-m 'PROMPT 3' telescope
located at Cerro Tololo. The new object, which was confirmed at mag 16.1 +/-
0.2 on an unfiltered image obtained on Feb. 20.06, is located at R.A. =
11h59m12s.06 +/- 0".1, Decl. = -53o24'06".5 +/- 0".1 (equinox 2000), which is
about 22".5 east and 25".8 north of the center of the galaxy ESO 171-4.
Nothing is visible at this position on archival images taken on Jan. 22.23
(limiting mag 18.5) and Feb. 1.33 (limiting mag 18.0).
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2009 CBAT
2009 February 20 (CBET 1699) Daniel W. E. Green
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