Science: How to Locate the Comet

During the seven months or so that Halley's is visible either through binoculars or to the naked eye, it will appear to move among the constellations. On the day you plan to look for Halley's, find the point on the chart that approximates the chosen date. This spot will help you determine the comet's position relative to familiar groups of stars. But the time of day for observing Halley's and the direction in which to look will vary. This week, for example, observers in the northern hemisphere should search the southwestern sky during the evening. The best view is on clear,...

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