Special Notice #318: SN 2012hr, a Type Ia supernova prior to maximum
December 23, 2012: SN 2012hr was discovered by Peter Marples (Loganholme, QLD, Australia, Backyard Observatory Supernova Search (BOSS)) [not by Colin Drescher (Calamvale, QLD, Australia; BOSS) as originally reported in AAVSO Special Notice #318; Drescher reported Marples' discovery to CBAT as announced in CBET 3346] on 2012 December 16.53. The object was discovered at a red magnitude of 14.8. Subsequent spectroscopy by Milisavljevic et al. and Morrell et al.