Alert Notice 474: Multiwavelength campaign on delta Ori (Mintaka) December 14, 2012: An international team of astronomers, including Drs. Tags spectroscopy photometry most Mintaka front page news delta Ori del Ori Chandra binary star AAVSO International Database AAVSO Alert Notice Read more about Alert Notice 474: Multiwavelength campaign on delta Ori (Mintaka)
