[vsnet-chat 2973] RE: [vsnet 2012] EsB365 observations and request

[dave@telf-ast.demon.co.uk (Dave McAdam)]

Sebastian Otero wrote:
> Dear Dave:
>                     Thanks for the update and your interest.
> Brian Fraser from South Africa is also planning to observe this star.
> I suggested an L type classification because of the lack (at least visually)
> of cepheid-like pulsations and the slow developement of the light curve. The
> main problem, of course, is the difference in colour with every other star.
> We need to keep observing in order to catch some fading but I think that the
> amplitude of the light curve is due to systematic differences between
> observers rather than RCB behaviour.
> The last couple of months I haven't seen any variations.
> Feel free to use the observations I presented in vsnet-obs 27859.
> Regards,
> Sebasti疣 Otero, Buenos Aires,
> Argentina.

Thanks Sebastian, I shall place your observations in our database and
amend the type to 'L?'.
Further monitoring by several observers should show up systematic differences
more clearly, (if these really are a factor) and another fade like the one
in Jan-Feb 1998 could occur.
Best Regards,
Dave
--
Dave McAdam                                   dave@telf-ast.demon.co.uk
BAAVSS Secretary                       http://vsnet.telf-ast.demon.co.uk/

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