Английская Википедия:39 Arietis
Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end
39 Arietis (abbreviated 39 Ari), officially named Lilii Borea Шаблон:IPAc-en,[1] is a star in the northern constellation of Aries. It is visible to the naked eye with an apparent visual magnitude of +4.5.[2] The distance to this star, as determined from an annual parallax shift of 19.01 mas,[3] is approximately Шаблон:Convert. This star was formerly located in the obsolete constellation Musca Borealis.
Nomenclature
39 Arietis is the star's Flamsteed designation.
This star was described as Lilii Borea by Nicolas-Louis de Lacaille in 1757,[4][5] as a star of the now-defunct constellation of Lilium (the Lily). The words are simply the Latin phrase Līliī Boreā 'in the north of Lilium'. Līliī Austrīnā Шаблон:IPAc-en 'in the south of Lilium' was 41 Arietis.
In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN)[6] to catalog and standardize proper names for stars. The WGSN approved the name Lilii Borea for this star on 5 September 2017 and it is now so included in the List of IAU-approved Star Names.[1]
In Chinese, Шаблон:Lang (Шаблон:Lang), meaning Stomach, refers to an asterism consisting of 39 Arietis, 35 Arietis and 41 Arietis.[7] Consequently, the Chinese name for 39 Arietis itself is Шаблон:Lang (Шаблон:Lang, Шаблон:Lang-en).[8]
Properties
39 Arietis is a giant star with a stellar classification of K1.5 III.[9] It is currently at an evolutionary stage known as the red clump, indicating that it is generating energy through the fusion of helium at its core.[10] It has 1.6[10] times the mass of the Sun, but its outer envelope has expanded to around 11[9] times the Sun's radius. It shines with 56 times the luminosity of the Sun.[11] This energy is being radiated into outer space from its outer atmosphere at an effective temperature of 4,603 K,[11] giving it the cool orange-hued glow of a K-type star.[12]
See also
References
External links
Шаблон:Stars of Aries Шаблон:Portal bar
- ↑ 1,0 1,1 Шаблон:Cite web
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- ↑ 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.
- ↑ Шаблон:In lang 白羊座
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- Английская Википедия
- K-type giants
- Horizontal-branch stars
- Aries (constellation)
- Durchmusterung objects
- Flamsteed objects
- Henry Draper Catalogue objects
- Hipparcos objects
- Bright Star Catalogue objects
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- Википедия
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