Oh, and I forgot

Rc ~ r' - 0.2

OR

Rc ~ r' + 0.2

trouble is I can never remember which way around it is, so try both
and see which makes most sense.

Cheers

John

--- In guide-user@yahoogroups.com, "duble.stars" <duble.stars@...> wrote:
>
>
> For folk playing with the CMC14 data, passable V down to about 15th
> mag can sometimes be got from V = r' + 0.60(J-Ks) - 0.03
>
> Cheers
>
> John
>
> --- In guide-user@yahoogroups.com, Bill J Gray <pluto@> wrote:
> >
> > Hi folks,
> >
> > I've just posted the "official" update at
> >
> > http://www.projectpluto.com/update8.htm
> >
> > No real changes from the last "in-testing" version. I've
documented
> > the CMC-14 download function. I expect that the problem Gerhard Dangl
> > reported with disconnecting an ASCOM scope, then attempting to access
> > that scope from other software, will probably still arise. I also
> > expect that in some circumstances, lists of satellite passes will be
> > either missing (as Jari Suomela found) or incomplete (as Masaki Kouda
> > found).
> >
> > It appears these problems are rare, which probably accounts for
> > the fact that I can't replicate them. So I've decided to go ahead and
> > post this update. It certainly fixes some issues found in the
previous
> > version, and adds plenty of nice new features.
> >
> > -- Bill
> >
>