Re: GSC 748-1618 V-I

[Arne Henden <aah@nofs.navy.mil>]

I screwed up already.  Minimum in the current system for
this star, assuming it is an RR Lyr, is
at phase 0.0/1.0, not phase 0.75.  I was thinking about
the normal convention and with an RRab.
Arne

Arne Henden wrote:
> As mentioned in the later email, larger (V-I) means redder
> color; since minimum is around phase 0.75 in the current
> system, this table shows the star getting redder near
> minimum.  I'd like to see the equivalent data at maximum.
>   Contrary to eclipsing binaries, the normal convention
> is to place the maximum at phase 0.0/1.0, primarily because
> this feature is the easiest to measure on pulsating
> variables.
> Arne
>