Last updateFri, 16 Sep 2016 12pm


28 Sep 2016
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On Thursday morning, Sept. 29, a beautiful sight will reward early risers who go out to enjoy the brightening dawn 45 minutes to an hour before sunrise: About 5:45 a.m. in the Coachella Valley that morning, very low, almost directly east, a slender, crescent old moon will be suspended just 2 degrees below Mercury. Other sights in the morning sky through October include Sirius, the brightest star, well up in the south-southeast, and the rest of the Winter Hexagon’s stars—in clockwise order, Procyon, Pollux (and Castor, not shown), Capella, Aldebaran and Rigel, with Betelgeuse inside. Other bright stars include Canopus, very low in the south, the second brightest star (easier to see later in the month, when it reaches its high point, due south, earlier in a darker sky), and Regulus, heart of Leo, the Lion, in the east. The old moon of Sept. 29 is followed by the new…
31 Aug 2016
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Our evening twilight chart for September, depicting the sky about 40 minutes after sunset, shows brilliant Venus remaining low, creeping from west to west-southwest and gaining a little altitude as the month progresses. Its close encounter within 2.5 degrees north of Spica on Sept. 18 is best seen with binoculars to catch the star low in bright twilight. The brightest stars in the evening sky are golden Arcturus, descending in the west, and blue-white Vega, passing just north of overhead. Look for Altair and Deneb, completing the Summer Triangle with Vega. The triangle of Mars-Saturn-Antares expands as Mars seems to hold nearly stationary in the south-southwest as the month progresses, while Saturn and Antares slink off to the southwest. The morning twilight sky is rich with stars as the Winter Hexagon, made up of stars from Orion, his Dogs, the Twins, the Charioteer with Mother Goat, and Taurus, the Bull.…
29 Jul 2016
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August 2016 has a rare gift for skywatchers: For most of the month, all five naked-eye planets can be seen during evening twilight, and they participate in beautiful pairings and groupings! From a site with an unobstructed view of the western horizon, begin within a half-hour after sunset to catch Venus before it sinks too low. Use our evening twilight chart link to guide you. Venus, at magnitude -3.8, is visible with the unaided eye, even low in bright twilight, if you know where to look. (It will get higher in coming months, setting in a dark sky starting in October.) Jupiter, next in brightness at magnitude -1.7, is easy to find not long after you spot Venus. For most of August, Jupiter appears to the upper left of Venus, getting one degree closer each day until their spectacular close pairing on Saturday, Aug. 27. Thereafter, Jupiter will appear to…

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