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Lunar Occultations Section, Bulletin No.1 -2- estimate of the predicted occultation time for your site is obtained by applying the "a" and "b" corrections given in the OBSERVER'S HANEBOOK. The same information is supplied in SKY AND TELESCOPE in its yearly supplement on occultations. With all preliminaries completed, you are now seated at the telescope; select an eyepiece so that any sky haze does not affect your viewing (use higher powers when there are hazy conditions). With experience, you can control the "notion" of the moon so that the occultation occurs when the star is in the midile of the field of view. Just prior to the event, determine the position angle of the star with respect to the limb of the moon. Then with your storwatch fully wound, start the watch at the moment of disappearance of the star. Immediately after this the short-wave time signals from WWV (5, 10, 15 and 20 megacycles) or CHU (3.330, 7.335, 14.670 megacycles) should be used to stop the watch at the beginning of a known time signal. By subtracting your watch time from the radio time you obtain the actual time of the occultation. Where the star is approaching the moon's limb at right angles, this should take less than 10 minutes. If the radiO signal is heard more than 5 minutes after the watch is started, then prior calibration of your stopratch aver longer time periods is desirable. Sometimes observers prefer to reverse this procedure - stopping the watch upon seeing the occultation. The information should then be transferred to our special form; mail these to the National Co-ordinator at the end of each month. A sample report form is attached; additional copies are available upon request. The next bulletin will include a list of observers, the local contact in your Centre, as well as sane "tricks of the trade" useful to the new observer. Good viewing until then! Franklin C. Loehde, National Co-ordinator, Lunar Occultations Section, Standing Committee on Observational Activities, 8332 Jasper Avenue, 21 September, 1966. Edmonton, Alta.