SIMBAD references

A. Vagnozzi, Stroncone, Italy, reports the discovery by D. De Pasquale, F. Guerri, G. Guerri, M. Cristofanelli, S. Romanelli, and himself of an apparent supernova on unfiltered CCD images taken with 0.50-m and 0.30-m reflectors on July 19.854 (at mag 17.1) and 20.841 UT (mag 17.0). The new object is located at R.A. = 14h59m58s.96, Decl. = +1o53'25".6 (equinox 2000.0; average of measurements by S. Valentini from two images), which is approximately 19" west and 3" south of the center of NGC 5806. H. Yamaoka, Kyushu University, reports that K. Itagaki (Teppo-cho, Yamagata, Japan) found SN 2004dg at mag 16.8 on an unfiltered CCD image taken on July 21.534, adding that nothing is visible at this location on his archival images of this galaxy (the most recent one taken in early June).