EtU recipient

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EtU recipient

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EtU rrecipient

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Observer's Handbook 1973

the observer’s handbook for 1973 is the sixty-fifth edition. The major change in this edition is the inclusion of data on grazing occultations over Canada. These data were supplied by Mr. L. V. Morrison of the British Nautical Almanac Office.

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Observer's Handbook 1971

the observer’s handbook for 1971 is the 63rd edition. A number of small changes and additions have been made in response to suggestions from readers; further changes and additions are contemplated for the 1972 edition. Additional informa­tion about the planet Mars is included, in view of the favourable opposition which occurs in 1971.

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Bulletin 2018 Dec

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Messier Recipient

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Observer's Handbook 1970

the observer’s handbook for 1970 is the 62nd edition. The time zone map has been supplied courtesy of the Department of Energy, Mines and Resources of Canada. The sections on Nearest Stars, Galactic Nebulae and Radio Sources have been rewritten.

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Observer's Handbook 1969

THE OBSERVER’S HANDBOOK for 1969 is the 61st edition. The time zone map has been revised and supplied courtesy of the Department of Energy, Mines and Resources. A table giving the longitude of the central meridian of Mars has been added. Changes have been made in the table of Saturn’s satellites, so that it will be more useful to observers. The times of sunrise and sunset, and of twilight, are again for the current year. The magnitudes in the table of Messier’s objects have been revised.

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The Sky This Month - December 2018

Two Grand Events

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