Re: V455 And

From: Joe Patterson <*jop_at_astro.columbia.edu*> Date: Fri, 05 Oct 2007 16:14:21 -0400 · jop_at_astro.columbia.edu

Whew... a lot of interest in that sixth decimal place.

I wanted merely to request that you think carefully about the accuracy 
of timing.  The times should be mid-exposure, that's REALLY important!
And if you know the greater subtleties, such as:

what is the clock's accuracy?
is the last place in .xxxx or .xxxxx reporting truncated (rounded down)
                                         or rounded off (nearest digit)?

that could be helpful.

In practice, this star will likely tolerate systematic uncertainties up
to around 2-4 seconds -- since our random errors are likely to be that 
large.  But "a man's reach should exceed his grasp, or what's a heaven for?"

joe