| SUPERNOVA
2010ir IN ESO 491-12
J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, G. Folatelli,
R. Cartier, and F. Forster, Universidad de Chile; G.
Pignata and M. Cifuentes, Universidad Andres Bello;
P. Gonzalez, Pontificia Universidad Catolica de Chile;
B. Conuel, Wesleyan University; and D. Reichart, K.
Ivarsen, J. Haislip, 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 16.6) on
an unfiltered image taken on Oct. 9.35 UT with the 0.41-m
'PROMPT 4' telescope located at Cerro Tololo. The new
object, which is also present in images taken on Oct.
12.27 (at mag approximately 16.8), is located at R.A.
= 6h57m23s.79 +/- 0".1, Decl. = -24°43'10".5
+/- 0".1 (equinox 2000), which is about 11".8
west and 26".1 north of the center of the galaxy
ESO 491-12. Nothing is visible at this position on archival
images taken on Aug. 27.40 (limiting mag 18.0) and Feb.
11.17 (limiting mag 18.5).
NOTE: These 'Central Bureau Electronic Telegrams' are
sometimes superseded by text appearing later in the
printed IAU Circulars.
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