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ROYAL ASTRONOMICAL SOCIETY OF CANADA STANDING COMMITTEE ON OBSERVATIONAL ACTIVITIES Bulletin No 2 AURORA SECTION March 1963 Since the introductory bulletin last year, four of the sixteen R.A.s.C. Centres have indicated a desire to co-operate in the national auroral observing programme. The four local recorders are as follows:- Calgary James F. Wright 218 - 4th Avenue N.E., Calgary, Alta. Edmonton Franklin C. Loehde 9749 89th Avenue, Edmonton, Alta. Hamilton Frank Dorosh 216 Millen Road, Stoney Creek, Ont, Montreal Louis R. Duchow 5987 MacDonald Avenue, Montreal 29, Que. The purpose of an auroral observing programme co-ordinated by the R.A.S.C. Comm- ittee on Observational Activities is to encourage more interest in aurora observing amongst our observing members so that there will be a more complete reporting of auroral occurrences in Canada. The programmes are to be geared to both positive and negative observations of the aurora. POSITIVE REPORTING PROGRAMMES For many years most of those Centres in the Society making active observations of the aurora were primarily reporting the appearance of displays of aurora. During the I.G.Y. when, solar activity was high and auroral displays were frequent, a posit- in reporting prograimne led to very accelerated auroral reporting activity even in Centres which had been observing for many years priorto the I.G.Y. However, in years of lowered solar activity, auroral displays tend to become much less frequent and interest in the positive reporting programmes tends to wane. It must be remembered that no matter how seldom aurora is seen in your locality, your positive reports of aurora are extremely valuable in constructing maps of total activity for the North American continent. No matter how seldom you see them, keep reporting all auroras in your area! NEGATIVE REPORTING PROGRAMMES With the coming of the next important observing period, the International Quiet Sun Year (or I.Q.S.Y.) in 1964, a negative emphasis will be applied to the observ- ing programme to add to the already flourishing positive programme and to increase the interest in NOT seeing auroras. The aim of the negative programme will be to collect data on just how many aurora-less nights occur near of the sixteen R.A.S.C. Centre locations. One copy of all reports will be made on the observing forms provided by the National Research Council, in addition to any forms which the individual Centres wish to use for the programme. The programme will involve individual observers (now active in the N.R.C. Auroral Survey), who will contribute a copy of their reports of clear, auroraÄless sky directly to N.R.C. as well as to their local aurora recorder. At the same time, the R.A.S.C. Centres wilt be asked to collect reports from other individuals in their Centres who can report any portions of the sky free from aurora. These reports could be made during observations of other astronomical phenomena, say, while out observing the noon, planets, nova searching, etc. Also, interested observers who due to inferior observing locations can only report on