[Date Prev][Date Next][Date Index]

(cba:news) VY Aqr erupts... (Joe Patterson) [2008-06-30T02:04:32Z]



Dear CBAers,

It seems likely that VY Aqr has just jumped to 10 th magnitude... and this suggests a probable superoutburst - and possibly the first day of it, too! This equatorial target is available to everyone, so it's very attractive for a round-the-world campaign. Train your best firepower on it.

But don't forget GW Lib! The present campaign is going great, and the documentary record of both the fast pulsations and the "2-hour" signal is one of our best ever.

At tenth magnitude, you may well choose to use a filter (V is usually the best choice) since it allows calibration and better treatment of extinction. It would be desirable - though certainly not necessary - to attach a third column giving the airmass. This will enable some extra corrections for differential extinction.

When you first visit the field, select an appropriate comparison star, and send details to cba-news. Other observers may well choose to use the same comp; that also allows for somewhat easier splicing of the light curves.

joe