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

(cba:news) Maxie = ASASSN-18ey... back where it came from (Joe Patterson) [2019-05-09T14:35:48Z]


Hi CBAers,

Recent light curves suggest that the star has approached its (likely) quiescence around 17.7-18.0. This makes it an increasingly good target for finding the actual orbital period - still under the assumption that the not-quite-stable 0.7 day period of 2018 was a superhump (very likely but not 100% obvious).

So promote that star on your priority list. Unfortunately, the usual admonition "follow it throughout the night, from tree to tree" doesn't apply here - because with such an awkwardly long period, it's easy to get snakebit by extinction effects. Our usual advice of airmass < 2.0 applies... and apart from that, your general quality-of-night opinions are important too.

I don't have general advice about V versus "wide-V". Obviously V is better if you can survive the low count rate - but it's a very big price to pay with a small scope at 18th mag!

joe

Don't forget HP Lib and CR Boo, as well.

____________________________________________________________
Center for Backyard Astrophysics (CBA) mailing lists
https://cbastro.org/communications/mailing-lists/