K-type giant star in the constellation Andromeda
Xi Andromedae (ξ Andromedae , abbreviatedXi And ,ξ And ), officially namedAdhil /ə ˈ d ɪ l [ 7] [ 8] [ 3] star in the northernconstellation ofAndromeda . It has anapparent magnitude of +4.9.[ 2] parallax measurements obtained during theGaia mission, it lies at a distance of roughly 223light-years (68parsecs ) from theSun .[ 1]
ξ Andromedae (Latinised toXi Andromedae ) is the star'sBayer designation . It also bears theFlamsteed designation 46 Andromedae .Johann Bayer labeled this star "ξ" in hisUranometria John Flamsteed 'sAtlas Coelestis 46 And byJérôme Lalande . The label "ξ" was used inAtlas Coelestis , apparently erroneously, for what Bayer had labeled "A" (Bayer'sA Andromedae has the Flamsteed designation49 Andromedae [citation needed
It bore the traditional nameAdhil , which is derived from the Arabic الذيلað-ðayl "thetrain " (lit. "the tail"). In 2016, theInternational Astronomical Union organized aWorking Group on Star Names (WGSN)[ 9] Adhil for this star on 21 August 2016 and it is now so included in the List of IAU-approved Star Names.[ 8]
This star is ared clump giant star that has begun generating energy through the fusion of helium at its core, having passed through thered giant branch of itsevolution .[ 5] stellar classification of K0 IIIb,[ 3] [ 5] [ 6] [ 6] outer envelope at aneffective temperature of 4,656 K,[ 6] K-type star . It has no measurableprojected rotational velocity ,[ 6]
^a b c d e f Brown, A. G. A. ; et al. (Gaia collaboration) (2021)."Gaia Early Data Release 3: Summary of the contents and survey properties" .Astronomy & Astrophysics 649 : A1.arXiv :2012.01533 Bibcode :2021A&A...649A...1G .doi :10.1051/0004-6361/202039657 S2CID 227254300 . (Erratum: doi :10.1051/0004-6361/202039657e ) . Gaia EDR3 record for this source atVizieR .^a b c d Johnson, H. L.; et al. (1966). "UBVRIJKL photometry of the bright stars".Communications of the Lunar and Planetary Laboratory .4 (99): 99.Bibcode :1966CoLPL...4...99J . ^a b c Eggleton, P. P.; Tokovinin, A. A. (September 2008)."A catalogue of multiplicity among bright stellar systems" .Monthly Notices of the Royal Astronomical Society 389 (2):869– 879.arXiv :0806.2878 Bibcode :2008MNRAS.389..869E .doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 . Bright Star Catalogue has listed this as aspectroscopic binary with a period of 17.7673d.^ Famaey, B.; et al. (January 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters",Astronomy and Astrophysics ,430 (1):165– 186,arXiv :astro-ph/0409579 Bibcode :2005A&A...430..165F ,doi :10.1051/0004-6361:20041272 ,S2CID 17804304 . ^a b c d Mishenina, T. V.; et al. (September 2006), "Elemental abundances in the atmosphere of clump giants",Astronomy and Astrophysics ,456 (3):1109– 1120,arXiv :astro-ph/0605615 Bibcode :2006A&A...456.1109M ,doi :10.1051/0004-6361:20065141 ,S2CID 18764566 ^a b c d e f g h i j Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity",The Astronomical Journal ,135 (1):209– 231,Bibcode :2008AJ....135..209M ,doi :10.1088/0004-6256/135/1/209 ^ Kunitzsch, Paul; Smart, Tim (2006).A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub.ISBN 978-1-931559-44-7 ^a b "Naming Stars" . IAU.org. Retrieved18 June 2018 .^ IAU Working Group on Star Names (WGSN) International Astronomical Union , retrieved22 May 2016 .
