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215 Mm – diameter of Proxima Centauri, the nearest star to the Solar System; 257 Mm – diameter of TrES-4, one of the largest exoplanets; 260 Mm – diameter of the Barnard's Star; 272 Mm – diameter of WASP-12b; 299.792 Mm – one light-second; the distance light travels in vacuum in one second (see speed of light) 314 Mm – diameter of ...
61 000 Mm 2 Surface area of Jupiter , [ 93 ] the "surface" area of the spheroid (calculated from the mean radius as reported by NASA). The cross-sectional area of Jupiter, which is the same as the "circle" of Jupiter seen by an approaching spacecraft, is almost exactly one quarter the surface-area of the overall sphere, which in the case of ...
In more modern usage, the length of a diameter is also called the diameter. In this sense one speaks of the diameter rather than a diameter (which refers to the line segment itself), because all diameters of a circle or sphere have the same length, this being twice the radius r . {\displaystyle r.}
Originally in 1945, the divisions were based on the ring inside diameter in steps of 1 ⁄ 64 inch (0.40 mm). [6] However, in 1987 BSI updated the standard to the metric system so that one alphabetical size division equals 1.25 mm of circumferential length. For a baseline, ring size C has a circumference of 40 mm. [7]
The M 98 bolt actions and magazine boxes of standard military Mauser 98 rifles have to be adapted by a competent gunsmith to function properly with 8×68mm S cartridges, since the M98 internal magazine boxes feature an internal magazine length of 84 mm (3.31 in) and 8×68mm S cartridge cases have a significantly larger diameter than 8×57mm IS ...
Octal bases, as defined in IEC 60067, [10] diagram IEC 67-I-5a, have a 45-degree angle between pins, which form a 17.45 mm (11 ⁄ 16 in) diameter circle around a 7.82 mm (5 ⁄ 16 in) diameter keyed post (sometimes called a spigot) in the center. Octal sockets were designed to accept octal tubes, the rib in the keyed post fitting an indexing ...
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The 8×60mm S bullet diameter is 8.22 mm (.323 in) as found in the 8×57mm IS. The new cartridge used the same bullet and therefore only the chamber of the rifle had to be modified (reamed out by 2 mm plus 1 mm of neck extension) to accommodate the slightly longer case. This operation was easily performed on Gewehr 98 and Karabiner 98k rifles ...