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Re: ATM sub-arcsec micrometer precision

To: Dominic-Luc Webb molmed <Dominic.Luc-Webb@molmed.ki.se>
Subject: Re: ATM sub-arcsec micrometer precision
From: Donald Clement <clement@inetworld.net>
Date: Fri, 28 Apr 2000 03:24:41 -0700
CC: atm@shore.net
References: <Pine.GSO.4.21.0004252036050.29699-100000@mbox.ki.se>
Reply-To: Donald Clement <clement@inetworld.net>
Sender: owner-atm@shore.net




Dominic-Luc Webb molmed wrote:

> 1) Has anyone here ever built a micrometer?
> 
> 2) Is it possible to accurately split and
> measure angular distances between binaries that
> are less than 2" apart, as Ingalls did, assuming
> the rest of the optical system can resolve it
> (i.e., I refer to amateurs)?


Hello Dominic,

Why couldn't a CCD camera be used as a micrometer to measure angular
distances? 

Don Clement
San Diego/Running Springs

References:
- ATM sub-arcsec micrometer precision
  - From: Dominic-Luc Webb molmed <Dominic.Luc-Webb@molmed.ki.se>

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