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.
Some scopes offer 1/8th MOA turrets so now your incremental change is 1/8th inch at 100 yards or 1.250 inches at 1000 yards. Most of today's real precision shooters opt to use MOA simply due to the finer or smaller incremental changes in point of impact that they can adjust their scope to. 1  Will ATRS machine R700 bolt for Sako extractor. 2  Why we use 7075 Aluminum. 3  Modern Hunter FAQ.  Reloading Die Neck Bushing 1  Selection. Terms and Conditions.