Correction: slightly brighter than Eta Cygni, and certainly not brighter than Albireo. It was early. Tom ---- Tom Polakis <tpolakis@xxxxxxx> wrote: > On another forum, Brian Skiff mentioned that the Mira-type variable star Chi > Cygni is near maximum. It is located very near the zenith at 4 a.m., just > before dawn. We took a look this morning, and it's obvious from Tempe, even > though the Cygnus Milky Way is an averted vision haze. Chi Cygni is > conveniently located along the cross, closer to Alberio than the ever-present > Eta Cygni. To my eyes, Chi appeared just slightly brighter than *Eta Cygni*, > although measurements show them both at magnitude 3.9. > > The brightness of Chi Cygni may be plotted using AAVSO's Light Curve > Generator. > > http://www.aavso.org/data/lcg/ > > Simply enter "Chi Cyg" and some number of days. Entering 4000 days shows ten > cycles, whose maxima range from 3rd to 5th magnitude. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.