SIMBAD references

M. Dennefeld and F. Ricquebourg, Institut d'Astrophysique de Paris, write that a calibrated spectrum (range 465-830 nm, resolution 0.6 nm) of SN 2005ch, obtained on June 10.93 UT with the 1.93-m telescope (+ Carelec spectrograph) at Haute-Provence Observatory, shows a blue continuum, strong Si II (rest 635.5 nm) absorption feature (measured at 603.3 nm), and a well-developed Fe II 501-nm blend and S II doublet (547-565 nm) absorptions, which indicate a type-Ia supernova a few days before maximum. No feature is detected from the parent galaxy.