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Thursday, March 28, 2024

Posts Tagged ‘Summer Triangle’

Earthsky Tonight—11: Altair, guide star to two small

Earthsky Tonight—11: Altair, guide star to two small constellations

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Look in the east at nightfall and evening to locate a sparkling blue-white star not far from the horizon. That is Altair, the brightest star in the constellation Aquila the Eagle, and the second brightest star in the Summer Triangle. The Summer Triangle formation is made up of the three bright summer stars, Vega, Deneb and Altair. The Summer Triangle lights up the eastern sky on June evenings. Once you have found Altair, it is a ... Full Story

Earthsky Tonight—June 10: Find the Summer Triangle

Earthsky Tonight—June 10: Find the Summer Triangle ascending in the east

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org An asterism is not the same thing as a constellation. Constellations generally come to us from ancient times. Earlier in this century, the boundaries of 88 constellations were officially drawn by the International Astronomical Union. On the other hand, asterisms are whatever you want them to be. They are just patterns on the sky’s dome. You can also make up your own asterisms, in much the same way you can recognize shapes in ... Full Story

Earthsky Tonight — March 8, 2010: The Summer

Earthsky Tonight — March 8, 2010: The Summer Triangle, a signpost for all seasons

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org As seen from our northern temperate latitudes, the three brilliant stars of the Summer Triangle – Vega, Deneb and Altair – are out for at least part of the night every night of the year. Presently, the Summer Triangle shines in the eastern sky at and before dawn. Like the Big Dipper, the Summer Triangle is an asterism – a pattern of stars that is not one of the officially recognized 88 constellations. To gauge the size of ... Full Story

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