Altair是英语单词，发音为/ælˈteər/，可译为“鹰星”。它是指天鹰座最亮的恒星，也是整个夏季天空中最亮的恒星之一。
以下是9个含有Altair的例句：
1. Altair is one of the three stars of the Summer Triangle in the northern hemisphere.（Altair是北半球夏季三角形中的三颗星之一。）
2. Altair is a type A star, which means it is hotter than the sun.（Altair是A型恒星，也就是比太阳更热的恒星。）
3. Altair is located about 16.7 light years away from Earth.（Altair距离地球约16.7光年。）
4. Altair is also known as Alpha Aquilae, which means it is the brightest star in the constellation Aquila.（Altair也被称为天鹰座α星，也就是天鹰座中最亮的恒星。）
5. Altair is a binary star system, which means it has a companion star orbiting around it.（Altair是一个双星系统，也就是它有一颗伴星围绕着它运转。）
6. Altair is a popular target for amateur astronomers due to its brightness and proximity to Earth.（由于它的亮度和靠近地球的距离，Altair是业余天文爱好者的热门目标。）
7. Altair was one of the first stars to have its spectrum measured, which helped astronomers understand more about the composition of stars.（Altair是最早被测定其光谱的恒星之一，这帮助天文学家更好地理解恒星的组成。）
8. Altair has a high rotational velocity, which causes it to appear oblate or flattened at the poles.（Altair的自转速度很快，这导致它在极点处呈扁平形状。）
9. Altair has been mentioned in literature and mythology, including in the Chinese love story 'The Cowherd and the Weaver Girl' where it represents the Weaver Girl.（Altair已经在文学和神话中被提及，包括在中国爱情故事《牛郎织女》中，它代表着织女。）
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