Telescope Tools
    Telescope Calculator
    Eyepiece Calculator
    Fundamentals
  Almanac Information
    Astronomical Almanac
    Topocentric Body Data
    Celestial Navigation
  Meteor Report Form
    Download Form Here
    (pdf format)
  Currency / Rates
    Interest Rates
    NZ Currency Convertor
  Astronomy links
Click Here to visit the Auckland Astronomical Society
 
Click Here to visit the Stardome web site!
 
Click Here to visit Sky & Telescope web site.
If you're interested in satellites or astronomy, this place is for you. Star maps of your area and timetables of satellite passes in your sky.
 
Web Hosting by:
Visit ISERVE for all your hosting needs!
 
Telescope Calculator
 Aperture:  mm or  inch 
 Focal Ratio or Length:   f/   or  mm 
 Eyepiece:  mm
 Apparent Field:  degrees
 Barlow Lens:  X

                           

 Magnification Range:  X to  X
 Light Grasp:  X
 Resolving Power:  arc seconds 
 Limiting Magnitude:  
 Magnification:   X
 True Field:   arc minutes  
 Exit Pupil:   mm