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Being initially referenced by C.Hoffmeister as S 10089 Cyg, a long-periodic suspect, the NSV 13636
was finally resolved to SRA variable with period of 168.5 days.
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T Pyx is a recurrent nova, erupting every 12 to 50 years and ejecting material that has formed the
disk around the bright star. Hubble Space Telescope photographed T Pyx’s latest outburst in April
2011, giving a rare look at stellar eruption in details.
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