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BWBlackett

Another Bright Nova, This Time in Sagittarius

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Info from Sky & Telescope website

Eight days after finding a nova in Cygnus, Japanese amateurs Koichi Nishiyama and Fujio Kabashima have done it again! Their lastest nova is in Sagittarius.

When they first captured it on April 18th, using the same 105-mm camera lens they'd used earlier, Nova Sagittarii 2008 was only about magnitude 9. But IAU Circular 8937 and Central Bureau Electronic Telegram 1352, both issued today by the Central Bureau for Astronomical Telegrams (CBAT) at the Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, paint a different picture:

Since discovery, Nova Sagittarii 2008 has brightened to near-naked-eye visibility! The CBAT announcements quote a study be U. Munari, A. Siviero (Padova Astronomical Observatory), and colleagues, indicating that the star has been brightening at about 0.7 magnitude per day. Alexandre Amorim in Florianopolis, Brazil, found it to be visual magnitude 6.5 on Tuesday evening (that is, April 23rd near 2:20 Universal Time).

This nova's coordinates are right ascension 18h 06.0m, declination –27° 14' (equinox 2000.0). It's just a few degrees north of the "spout" of the Teapot asterism.

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