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Observer's Handbook 1974

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Observer's Handbook 1974 the OBSERVER’S HANDBOOK 1974 sixty- sixth year of publication the ROYAL ASTRONOMICAL SOCIETY of CANADA THE ROYAL ASTRONOMICAL SOCIETY OF CANADA Incorporated 1890 Federally Incorporated 1968 The National Office of the Society is located at 252 College Street, Toronto 130, Ontario; the business office, reading room and astronomical library are housed here. Membership is open to anyone interested in astronomy and applicants may affiliate with one of the eighteen Centres across Canada established in St. John’s, Halifax, Quebec, Montreal, Ottawa, Kingston, Hamilton, Niagara Falls, London, Windsor, Winnipeg, Saskatoon, Edmonton, Calgary, Vancouver, Victoria and Toronto, or join the National Society direct. Publications of the Society are free to members, and include the Jo u r n a l (6 issues per year) and the O bserver’s H a n d b o o k (published annually in November). Annual fees of $12.50 ($7.50 for full-time students) are payable October 1 and include the publications for the following calendar year. VISITING HOURS AT SOME CANADIAN OBSERVATORIES Burke-Gaffney Observatory, Saint Mary’s University, Halifax, Nova Scotia. October-April: Saturday evenings 7:00 p.m. May-September: Saturday evenings 9:00 p.m. David Dunlap Observatory, Richmond Hill, Ontario. Wednesday mornings throughout the year, 10:00 a.m. Saturday evenings, April through October (by reservations, tel. 884-2112). Dominion Astrophysical Observatory, Victoria, B.C. May-August: Daily, 9:15 a.m.-4:30 p.m. (Guide, Monday to Friday). Sept.-April: Monday to Friday, 9:15 a.m.-4:30 p.m. Public observing, Saturday evenings, April-October, inclusive. Dominion Observatory, Ottawa, Ontario K1A 0E4. Monday-Friday, daytime, rotunda only. Saturday evenings, April-October. Week nights, school classes (by reservation). Dominion Radio Astrophysical Observatory, Penticton, B.C. Sunday, July and August only (2:00-5:00 p.m.). Planetariums The Calgary Centennial Planetarium, Mewata Park, Calgary 2, Alberta. Winter: Wed.-Fri., 7:15 and 8:45 p.m. Sat.-Sun., 1:45 (children), 3:00, 7:15, 8:45 p.m. (Closed Christmas day, New Year’s day and Good Friday.) Summer: Daily (except Tues.) 1:45 (children), 3:00, 4:15, 7:15 and 8:45 p.m. Dow Planetarium, 1000 St. Jacques St. W., Montreal, P.Q. In English: Tues.-Fri., 12:15 p.m.; Sat. 1:00 and 3:30 p.m.; Sun. 2:15 p.m. Evenings (except Mon.) 8:15 p.m. In French: Tues.-Sat., 2:15 p.m., also Sat. 4:30 p.m.; Sun. 1:00, 3:30 and 4:30 p.m. Evenings (except Mon.) 9:30 p.m. H. R. MacMillan Planetarium, 1100 Chestnut Street, Vancouver 3, B.C. Sept-June: Tues. and Wed., 3:00 and 8 :00 p.m.; Thurs, 8:00 p.m.; Fri., 7:30 and 9:00 p.m.; Sat. and holidays, 1:30, 3:00, 7:30 and 9:00 p.m.; Sun., 1:30, 3:00, 4:30 and 7 :30 p.m. July-August: Tues. to Sun., 1:30, 3:00, 7:30 and 9:00 p.m. Closed Mondays except holidays. Manitoba Museum of Man & Nature Planetarium, 190 Rupert Ave., Winnipeg R3B 0N2, Man. Sept-June: Sun., 1:00, 2:30, 4:00 p.m.; Tues.-Fri., 3:15, 8:00 p.m. Sat. and holidays, 1:00, 2:30, 4:00, 7:30, 9:00 p.m. July-August: Sat., Sun. and holidays same as above; Mon. 3:30 p.m. (if a holi­ day falls on a Monday, times are: 1:00, 2:30; 4:00, 7:30 and 9:00 p.m.; Tues.-Fri., 11:30 a.m., 3:30, 7:30, 9:00 p.m. Open all holidays except Christmas and Good Friday. McLaughlin Planetarium, 100 Queen’s Park, Toronto 5, Ontario. Tues.-Fri., 3:00, 8:00 p.m.; Sat., 2:00, 3:30, 7:30, 9:00 p.m. Sun., 2:00, 3:30, 5:00, 7:30 p.m. (During July and August weekday shows at 2:00, 3:30 and 8:00 p.m.). McMaster University, School of Adult Education, GH-136, Hamilton, Ontario. Group reservations only. Queen Elizabeth Planetarium, Edmonton, Alberta. Winter: Tues.-Fri., 8:00 p.m.; Sat., 3:30 p.m.; Sun., 3:00 and 8:00 p.m. Summer: Mon.-Sat., 3:00,8:00 p.m.; Sun. and holidays 2:00,4 :00 and 8:00 p.m. Seneca College Planetarium, 1750 Finch Ave. East, Willowdale, Ontario M2N 5T7. Group reservations only. The University o f Manitoba Planetarium, 394 University College, 500 Dysart Rd., Winnipeg 19, Man. Phone 474-9785 for times of public shows and for group reservations. the OBSERVER’S HANDBOOK 1974 sixty- sixth year of publication the ROYAL ASTRONOMICAL SOCIETY Of CANADA 252 College Street, Toronto M5T 1R7, Canada editor: JOHN R. PERCY INDEX PAGE Anniversaries and F e stiv a ls......................................................................................... 3 Asteroids—Ephemerides at O pposition......................................................................69 C lusters...........................................................................................................................94 Comet K o h o u te k .........................................................................................................73 Constellations.................................................................................................................5 Eclipses...........................................................................................................................55 G a l a x i e s .....................................................................................................................98 Julian Day Calendar..................................................................................................... 3 Jupiter—Belts and Z o nes . 72 —Longitude of Central M e r id i a n ................................................................70 —Phenomena of S atellites ............................................................................71 Mars—Longitude of Central M eridian......................................................................68 Messier’s C a ta lo g u e ................................................................................................... 93 Meteors, Fireballs and M e te o rite s............................................................................73 Miscellaneous Astronomical D a t a ..............................................................................6 Moon—O b serv atio n ................................................................................................... 56 —M a p ...............................................................................................................67 Moonrise and M oonset............................................................................................. 20 Nebulae—G a l a c t i c ................................................................................................... 96 Occultations—L u n a r ................................................................................................... 57 —G r a z i n g ............................................................................................. 64 —Planetary, A p p u lses............................................................................55 Planets—G e n e ra l..................................................................................................... 2 6 —Elements........................................................................................................... 8 Precession for 50 Y e a r s ............................................................................................. 75 Radio Sources...............................................................................................................97 Satellites of Solar System ............................................................................................... 9 Saturn—S atellites..................................................................................................... 7 4 Sky and Astronomical Phenomena Month by M o n t h ........................................ 30 Solar System—E lem en ts............................................................................................... 8 —List of S atellites................................................................................... 9 Star M a p s ...................................................................................................................100 Stars—B r ig h te s t.........................................................................................................77 —Double and M ultiple....................................................................................... 92 —Names, Finding L i s t ....................................................................................... 76 —N earest...............................................................................................................88 —V a r i a b l e .........................................................................................................90 Sun—E p h e m e ris...........................................................................................................7 —Physical O bservations....................................................................................... 54 —Sun-spot C y c le ................................................................................................... 26 Sunrise and S u n s e t ................................................................................................... 13 Symbols and A bbreviations......................................................................................... 4 Time—Correction to S u n - d ia l................................................................................... 7 —Radio Time S ig n a ls ........................................................................................11 —Solar, Sidereal, Universal, Standard, E ph em eris........................................ 10 —Map of Time Z o n e s .........................................................................facing
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