OCR Text |
Show Sidereal Time: 1 What Is 1 SIDEREAL time, ,,.. we hear little, M -2 measurement o( time It's the measure., time derived Irom " Hon ol the meridian of the nans tnj slightly from solar tine ; THE MEAN side,,, . for example is onrv a ' 56 minutes and 4.0b sr.,,''1 The time require, earth to make one cw-. revolution around the V." the sidereal year. ' ! THE sidereal yesr ,, .. days. 6 hours, 9 minu'e. 9.5 seconds. Every h year, as the reader kie,'""; extra hours-over and . the 365 days, are corrv into an added dav-i i " Year. y " u . But the effect o( th,s : time divergence has x't ticeable bearing ot veather. ! |