Back to Home

ATM Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Amateur Telescope Making | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
RE: Mosby Null Test

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Robert May on March 15, 2000 17:50:27 UTC

The Mosby Null Test is a version of the Ronchi Test where the recieving grating is predistorted to compensate for the distortions (curvature of the lines) that a parabola would produce in the Ronchi test. The test is interesting in theory but can be difficult to properly interpet as the lines need to be percieved as being perfectly straight and need to be done at exactly one location - closer or further and the mirror is not tested properly.
BTW, it would be nice if this pane where I am typing this in was larger in height so I don`t have to scroll up and down so much to read all of the contents that I have typed into the pane. This paragraph takes up more than what can be seen.
Bob Goff would be a good guy to make an article on the subject although he may want to charge you for the privlege of doing so.

Follow Ups:

    Login to Post
    Additional Information
    Google
     
    Web www.astronomy.net
    DayNightLine
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins