SIMBAD references

H. Yamaoka, Kyushu University, writes that, following posting of this object on the Central Bureau's unconfirmed-objects webpage, K. Haseda (Toyohashi, Aichi, Japan) has located several prediscovery images of the new star with a Canon EOS-5D digital camera (+ 120-mm-f.l. f/3.5 lens), providing the following estimated magnitudes: Apr. 7.780 UT, [11.8; 11.792, 11.2 (correction to date given on CBET 931); 13.793, 10.8; 14.777, 10.4. Yamaoka adds that Y. Nakamura (Kameyama, Mie, Japan) obtained an unfiltered CCD image with a 135-mm-f.l. f/2.8 camera lens on Apr. 19.803 that showed the apparent nova at mag 9.9, and the new star was evidently not present on an image taken by Nakamura on Apr. 9.792.