April 28, 2011: In AAVSO Alert Notice 438  on Supernova 2011by in NGC 3972 (issued 2011 April 28), the position was attributed to the wrong object. Here is the corrected text:
Position: R.A. = 11:55:45.56 Decl. = +55:19:33.8 (equinox 2000.0)
SN 2011by is about 5.3" east and 19.1" north of the center of NGC 3972.
Sincere apologies for the error.
This Alert Notice was issued by Elizabeth O. Waagen.
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