Search results
Results from the WOW.Com Content Network
In the example previously given, for 1 minute of arc, and substituting 3,600 inches for 100 yards, 3,600 tan( 1 / 60 ) ≈ 1.047 inches. In metric units 1 MOA at 100 metres ≈ 2.908 centimetres. Sometimes, a precision-oriented firearm's performance will be measured in MOA.
The horizontal circular scale was divided very accurately with divisions at 15 minute (of arc) intervals using one of Ramden's own dividing engines; [5] the marks on the 36-inch (910 mm) diameter scale would be about 1 ⁄ 6 inch (4.2 mm) apart. The position of the telescope could therefore be read to the nearest quarter of a degree by eye but ...
The triple prime ‴, as used in watchmaking, represents a ligne (1 ⁄ 12 of a "French" inch, or pouce, about 2.26 millimetres or 0.089 inches). [3] Primes are also used for angles. The prime symbol ′ is used for arcminutes (1 ⁄ 60 of a degree), and the double prime ″ for arcseconds (1 ⁄ 60 of an arcminute). [4]
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol ′, is a unit of angular measurement equal to 1 / 60 of one degree. [1] Since one degree is 1 / 360 of a turn, or complete rotation, one arcminute is 1 / 21 600 of a turn.
In the centimeter–gram–second system ... (1 ⁄ 1000 of an inch) inch ... only in non-metric countries) (2 yards = 1.8288 m) nautical mile (one minute of arc of ...
minutes, (1 minute = 15/60 degrees = 1/4 of a degree = 15 arcminutes) and; seconds, (1 second = 15/3600 degrees = 1/240 of a degree = 15 arcseconds) This a fair thing to put in an article on arcminutes (or arcseconds for that matter).
an object of diameter 725.27 km at a distance of 1 astronomical unit (AU) an object of diameter 45 866 916 km at 1 light-year; an object of diameter 1 AU (149 597 871 km) at a distance of 1 parsec (pc) Thus, the angular diameter of Earth's orbit around the Sun as viewed from a distance of 1 pc is 2″, as 1 AU is the mean radius of Earth's orbit.
As an example, a curve with an arc length of 600 units that has an overall sweep of 6 degrees is a 1-degree curve: For every 100 feet of arc, the bearing changes by 1 degree. The radius of such a curve is 5729.57795.