[vsnet-rcb 53] RE: V854 Cen fading?

[Sebasti若n Otero <varsao@fullzero.com.ar>]

> Visual mags of 7.0 to 7.6 are just the usual oscillations at maximum.  If
I
> recall correctly the periodicy is supposed to be 100 to 120 days.

The pulsation period is 43.23 days (Lawson et al.,1999). The amplitude is in
the order of 0.2-0.3 magnitudes. Lately, maxima were taking place at 7.1 so
this 0.4 magnitude fading seemed meaningful.
According to ephemeris based on the forementioned paper, maximum occured at
JD 2451723.4 and minimum took place these days.
The fading seems to have stopped exactly at minimum time so  it will
probably not be THE fading I predicted...

>
> If V854 Cen drops to 8.0 then it's starting a fade.  But if it stays at
7.6
> for a while, then there is a definite sense of anticipation... ;-)
>

Fraser I think you're right.

Best regards,
Sebasti睹.

VSNET Home Page

---

vsnet-adm@kusastro.kyoto-u.ac.jp

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp