Sunday, July 15, 2007

V5558 Sgr (Nova Saggitarius)

This extract is from the AAVSO site and was a second update after the discovery in April by Yukio Sakurai from Japan.

"V5558 Sgr, a slow nova that has been rising since April(see Special Notices 44, 45, and 48) exhibited a briefbrightening over the past few days, and may now be trendingdownwards. The most recent observations as of this noticeplace the star at V ~ 8.1 at JD 2454280.0 after reachingm(vis) ~ 7.8. Both visual and CCD observers are stronglyencouraged to continue monitoring this peculiar object;BVRI observations are especially encouraged, as they willprovide important information on the spectral evolutionof this nova. We will add comparison stars to VSP if andwhen it brightens beyond the current bright limit of thechart (mag 7.6). We note that the extremely slow novaV723 Cas (Nova Cas 1995) exhibited a short rapid risebefore finally beginning to decline about 100 days afteroutburst, and a similar event may be happening here.Coordinates are: RA 18:10:18.26, Dec -18:46:51.9 (J2000)"

Now currently showing at 6.5mag (sorry) I have just been emailed to say it has faded to 7.5mag this object will make very interesting observing over the next few months...

Regards

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