RE: ATM Diffraction Thingie?

["Antonio de Ugarte Postigo" <ugarte@mad.servicom.es>]

Hello Mike,
    On the March of 1997 issue od Sky and Telescope there is an article
titled "Cardboard Double Star Interferometer" which describes a very simple
device that serves to mesure the separation between double stars. It looks
very much like what you are saying though it has a different name, its also
a thing that you place in front of the telescope... you know . It looks like
one of those nice proyects I will try myself some day... ;-)

Antonio de Ugarte Postigo


-----Mensaje original-----
De: Michael P. Lindner <mikel@att.net>
Para: atm@shore.net <atm@shore.net>
Fecha: jueves 5 de noviembre de 1998 17:45
Asunto: ATM Diffraction Thingie?


>
>I recall reading in a book somewhere a while ago about a device for
>measuring the separation of double stars.  It consists of a venetian
>blind-like device that goes in front of the scope and can be rotated.
>I'm thinking it was called something like a "diffraction micrometer".
>
>Does anyone know where I could find the plans to such a beastie?
>
>--
>Mike Lindner
>