2005CBET..271....1M

M. Modjaz, R. Kirshner, P. Challis, Harvard-Smithsonian Center for Astrophysics; and T. Matheson, National Optical Astronomy Observatory, report that a spectrogram (range 350-740 nm) of SN 2005hg (cf. IAUC 8623), obtained by P. Berlind on Nov. 2.24 UT with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows the development of conspicuous lines of He I (rest 447.1, 587.6, 667.8, 706.5 nm). The spectrum is very similar to spectra of SN 1984L (Harkness et al. 1987, Ap.J. 317, 355) taken around maximum light and to spectra of SN 2005bf (Tominaga et al. 2005, Ap.J. Letters, in press; http://xxx.lanl.gov/abs/astro-ph/?0509557) at around 10 days before its second maximum. SN 2005hg was previously classified (CBET 267) as a type-Ic supernova.