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È esplosa nell'Orsa Maggiore ed è la più vicina osservata negli ultimi 27 anni, la supernova appena scoperta dal gruppo di studenti dell'osservatorio dell'University College di Londra, coordinato da Stephen J. Fossey. “La supernova è distante circa 12 milioni di anni luce ed è così brillante che è possibile osservarla anche con un piccolo telescopio”, ha detto l'astrofisico Gianluca Masi.
Si tratta della supernova più vicina dopo la 1987A esplosa il 23 febbraio 1987 nella Grande Nube di Magellano e la SN 1993J, esplosa 21 anni fa nella galassia M81. Identificata con la sigla SN 2014J, la supernova è all'interno della galassia irregolare M82, nell'Orsa Maggiore. È stata individuata il 21 gennaio.
“Al momento la supernova ha una magnitudine di circa 11, ed è quindi visibile anche con telescopi dal diametro di 10 centimetri, ma nei prossimi giorni - ha osservato Masi - lo splendore dovrebbe salire ancora, rendendola un astro di straordinario interesse anche per gli appassionati”.
ATS/Swing
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