Английская Википедия:Iota Aquilae

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Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalogШаблон:Starbox reference Шаблон:Starbox end Iota Aquilae, Latinized from ι Aquilae, is the Bayer designation for a star in the equatorial constellation of Aquila. It has the traditional name Al Thalimain Шаблон:IPAc-en, which it shares with λ Aquilae. The name is derived from the Arabic term الظليمین al-ẓalīmayn meaning "The Two Ostriches".Шаблон:Citation needed With an apparent visual magnitude of 4.364,[1] this star is bright enough to be seen with the naked eye. Based upon an annual parallax shift of Шаблон:Nowrap,[2] it is located at a distance of around Шаблон:Convert from Earth. At that distance, the visual magnitude of the star is diminished by 0.15[3] from extinction caused by intervening gas and dust.

Although Iota Aquilae is listed in star catalogues as a giant star, calculations of its dimension show that in reality it is a main-sequence star.[4] It has nearly five times the mass of the Sun and five to six times the Sun's radius.[3] It is emitting 851[3] times the luminosity of the Sun from its outer atmosphere at an effective temperature of 14,552 K,[5] giving it the blue-white hue of a B-type star. The projected rotational velocity of this star is 55 km/s.[6] Even though it is only around 100 million years old, it has already spent 91% of its allotted lifetime on the main sequence.[3]

Nomenclature

In Chinese, Шаблон:Lang (Шаблон:Lang), meaning Right Flag, refers to an asterism consisting of ι Aquilae, μ Aquilae, σ Aquilae, δ Aquilae, ν Aquilae, 42 Aquilae, HD 184701, κ Aquilae and 56 Aquilae.[7] Consequently, the Chinese name for ι Aquilae itself is Шаблон:Lang (Шаблон:Lang, Шаблон:Lang-en.)[8]

This star, together with η Aql, θ Aql, δ Aql, κ Aql and λ Aql were once part of the obsolete constellation Antinous.[9]

References

Шаблон:Reflist

External links

Шаблон:Stars of Aquila

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  1. ↑ Ошибка цитирования Неверный тег <ref>; для сносок aass61_387 не указан текст
  2. ↑ Ошибка цитирования Неверный тег <ref>; для сносок aaa474_2_653 не указан текст
  3. ↑ 3,0 3,1 3,2 3,3 Ошибка цитирования Неверный тег <ref>; для сносок mnras333_1_9 не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок kaler не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок mnras189_601 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок apj573_1_359 не указан текст
  7. ↑ Шаблон:In lang 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, Шаблон:ISBN.
  8. ↑ Шаблон:In lang AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 3 日
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок ridpath не указан текст
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