Astronomy:Nu Sagittarii
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The Bayer designation Nu Sagittarii (Nu Sgr, ν Sagittarii, ν Sgr) is shared by two star systems, ν1 Sagittarii and ν2 Sagittarii, in the zodiac constellation Sagittarius. The two stars are separated by 0.23° in the sky.
Nu Sagittarii has the traditional name Ain al Rami, which is from the Arabic عين الرامي cain ar-rāmī meaning eye of the archer.[1] Both of the ν stars, together with τ Sgr, ψ Sgr, ω Sgr, 60 Sgr and ζ Sgr were Al Udḥiyy, the Ostrich's Nest.[1] Nu Sagittarii is often cited as one of the earliest identified double stars.[2] In the Almagest, Ptolemy describes the star as "nebulous and double", referring to the double nature of the star.
References
- ↑ 1.0 1.1 Allen, R. H. (1963). Star Names: Their Lore and Meaning (Reprint ed.). New York: Dover Publications Inc. p. 355. ISBN 0-486-21079-0. https://archive.org/details/starnamestheirlo00alle/page/355. Retrieved 2012-09-04.
- ↑ Plotner, Tammy; Vogt, Ken (2009), The Night Sky Companion: A Yearly Guide to Sky-Watching 2009, The Patrick Moore Practical Astronomy Series, Springer Science & Business Media, p. 266, ISBN 978-0387795096, https://books.google.com/books?id=bTthlUmBQpAC&pg=PA266.
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