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insidethisissue - The Royal Astronomical Society of Canada

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stars like Canopus and Achernar, and the new constellationsI need to learn in order to starhop to my targets. Notice howPuppis and Columba, usually lost in the murk of our Canadiansouthern horizon, are right up in the zenith. The South CelestialPole is about a third of the way up the sky, with no bright staranywhere near to mark it. Most of the stars in this chart arecircumpolar but, unlike our northern circumpolar stars, theyrotate clockwise. This tells me that I must mainly concentrateon the right side of the chart, because these are the stars thatwill be setting first. As the night goes on, the stars on the leftside of the chart will become better placed.This leads to the second purpose of these wide-field charts:prioritizing my observing targets. First up is obviously the SmallMagellanic Cloud, located just above the brilliant globularcluster, 47 Tucanae, and soon to be slipping beneath the SouthCelestial Pole. The second priority is the Large Magellanic Cloud,now at its highest, but swinging around and down to the right.The southern Milky Way is still rising on the left; plenty of timefor that later.This level of chart is perfect for naked-eye and binocularobserving. When I switch to using a telescope, I’ll need chartsthat are more detailed. In recent years, observing Alan Dyer’sFinest NGC Objects list and the Astronomical League’s Herschel400 list, I’ve come to rely on the highly detailed and deep chartsof The Millennium Star Atlas. However, for this trip I’m backto observing bright, easy objects, so a more suitable atlas isSky & Telescope’s Pocket Sky Atlas. This atlas contains most ofAlan Whitman’s Southern-Hemisphere Splendours, has a largeenough scale and wonderfully legible labels, and is a convenientsize and shape for airline travel. This has quickly become myfavourite general atlas. It covers the southern circumpolarconstellations in eight charts, -55° to 90°. There is also a detailedchart of the Large Magellanic Cloud.Charts in hand, the next question is about equipment.Telescopes I don’t have to worry about, as the organizers of theStar Safari have arranged for a number of large Dobsonians. I willcertainly bring my 1050 binoculars, as I rarely travel anywherewithout them, and probably my 1570s as well. I’ll surely bringmy Hydrogen beta filter, as the horrible winter weather this yearhas so far prevented me from trying for the Horsehead Nebula(see my column in the December 2007 JRASC) and it will be highoverhead in Australia.By the time you read this, I should be back home, hopefullyfull of wonderful memories of southern skies!Geoff Gaherty is currently celebrating his 50th anniversary as anamateur astronomer. Despite cold in the winter and mosquitoes inthe summer, he still manages to pursue a variety of observations,particularly of Jupiter and variable stars. Though technicallyretired as a computer consultant, he’s now getting paid to doastronomy, providing content and technical support for StarryNight Software.ARE YOU MOVING? IS YOUR ADDRESS CORRECT?If you are planning to move, or your address isincorrect on the label of your Journal, pleasecontact the National Office immediately:(888) 924-7272 (in Canada)(416) 924-7973 (outside Canada)email: nationaloffice@rasc.caBy changing your address in advance, you will continue toreceive all issues of SkyNews and the Observer’s Handbook .70 Building for the International Year of Astronomy (IYA2009)JRASC April / avril 2008

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