Formulae. 1  Eclipsing binary: diameter = speed Ã time of eclipse. 2  Size from luminosity: star's radius/Sun's radius = (Sun's temperature/star's temperature)2 Sqrt[star's luminosity/Sun's luminosity].
MOA is a mathmatical concept that most firearm scopes incorporate. Minute of Angle (MOA) is critical to sighting in your scope. MOA mathematical concepts were used to develop the AccuScope scope sighting reference tool. The only MOA information needed to use AccuScope is your scope's MOA number.
If you have a mil/mil scope all you have to do in this case is dial in 1 mil and your next shot will be on. An moa/mao scope would work the same way. I learned the basics on a moa/mil system and then bought a mil/mil scope and it is much easier and much faster to dial in corrections.