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.
Which M.O.A. do I need to purchase? We recommend 0 MOA for shorter distance shooting (0-600 yards). See your scope manual to determine the amount of elevation adjustment or range you have. For long distance shooting we recommend 20 MOA (600-1000 yards). The 20 MOA angled downward mount will allow you to see and zero where your bullet will strike over a long distance like 1000 yards.