...At about the date named thesetrenches pointed very nearly to Canopus at setting and to Arcturusand Altair at rising, the average error of azimuth being less than adegree... 
Various 「The American Journal of Archaeology, 1893-1」
...Half of his stars belonged to the first class,including Sirius, Vega, Regulus, Altair...
George Forbes 「History of Astronomy」
...A triangle is formed by Vega, Altair, and Ras Alhague, in theSerpent Bearer, which is about 30° west of Altair...
William Tyler Olcott 「A Field Book of the Stars」
...—A line drawn from Deneb, in Cygnus, to Altair, in Aquila,and prolonged an equal distance, terminates in Sagittarius about 10°east of its distinguishing characteristic, the Milk Dipper...
William Tyler Olcott 「A Field Book of the Stars」
...—A line drawn from either Vega, in Lyra, or Altair, inAquila, to Gemma, in Corona Borealis, passes through thisconstellation...
William Tyler Olcott 「A Field Book of the Stars」
...When it is at4 it is at eastern elongation,and Altair is near the meridian...
George C. Comstock 「A Text-Book of Astronomy」
...The star below Altair is βAquilæ, and is called Alschain; the one above is γAquilæ, named Tarazed...
Henry Warren 「Recreations in Astronomy」
...It forms a triangle withVega and Altair in Aquila—Altair being at the apex, about 35° fromDeneb and Vega...
William Tyler Olcott 「A Field Book of the Stars」
...It isto be looked for at about the same elevation as the brilliant Altair,and (as to azimuth) about midway between Altair and the south...
Richard A. Proctor 「Half-hours with the Telescope」
...To the Sirius type (A) belong Sirius,Vega, Altair, Fomalhaut and Deneb...
Carl Vilhelm Ludvig Charlier 「Lectures on Stellar Statistics」
...By observations of thebright stars Vega and Altair, I found my latitude was 24° 52´15´´; the night was excessively cold, and by daylight nextmorning the thermometer had fallen to 18°...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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