SIMBAD references

Two apparent supernovae have been reported from unfiltered CCD frames: 2006cg by R. Quimby and P. Mondol (in poor weather conditions; cf. IAUC 8622), and 2006ch by K. Itagaki (Teppo-cho, Yamagata, Japan, 0.60-m f/5.7 reflector; communicated by S. Nakano, Sumoto, Japan). SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2006cg May 6.23 13 05 02.32 +28 44 24.0 16.6 2" W, 3" N 2006ch May 9.76 23 47 06.12 +29 28 50.6 16.5 17" E, 10" S Additional approximate magnitudes for 2006cg: May 12.25 UT, 16.7; 14.23, 16.5. The estimated positional uncertainty of 2006cg is 1".5 in each coordinate. SN 2006cg was found by subtracting a co-addition of images taken between 2004 Dec. 15 and 2005 June 29 (limiting mag about 19.4) from the 2006 May images. A spectrum (range 420-890 nm) of 2006cg obtained on May 17.28 shows it to be a type-Ia supernova around a week past maximum (cf. CBET 511). Additional magnitudes for 2006ch in NGC 7753: 2005 Aug. 30, [19.0; Nov. 10, [19.0; 2006 May 11.764, 16.6; 14.752, 16.8. SN 2006A (cf. IAUC 8656) appeared on the other side of the center of NGC 7753, but no spectroscopic information has been reported on that object.