SIMBAD references

The "Nearby Supernova Factory" collaboration reports the discovery of a type-II supernova (mag approximately 18.9, calibrated to R) in NEAT images obtained on Feb. 8.3 UT; SN 2006ad is located at R.A. = 9h07m43s.11, Decl. = +12o03'06".5 (equinox 2000.0). Details are given on CBET 398, where they also report that spectroscopy (range 320-1000 nm), obtained on Feb. 10.5-10.6, shows 2006aa and 2006ac (cf. IAUC 8669) to be type-IIn and type-Ia supernovae, respectively.