释义 |
- References
{{Starbox begin | name = U Antliae }}{{Starbox image | image={{Location mark |image=Antlia constellation map.svg|alt=|float=center|width=260 |label=|position=right |mark=Red circle.svg|mark_width=10|mark_link=U Ant |x=332|y=618 }} |caption=Location of U Antliae (circled) }}{{Starbox observe | epoch = J2000 | ra = {{RA|10|35|12.852}}[1] | dec = {{DEC|−39|33|45.32}}[1] | appmag_v = 5.27 - 6.04[3] | constell = Antlia }}{{Starbox character | class = C5,3[4] | b-v = 2.84[5] | u-b = 7.10[5] | variable = LB[7] }}{{Starbox astrometry | radial_v = 41.00[8] | prop_mo_ra = −31.372 ± 0.228[9] | prop_mo_dec = 2.371 ± 0.267[9] | parallax = 3.5717 | p_error = 0.2043 | parallax_footnote = [1] | absmag_v = −5.22 }}{{Starbox detail | mass = | radius = 325[2] | luminosity = 8,000[14] | temperature = 2,800[14] | metal = | rotation = | age = }}{{Starbox catalog | names = HR 4153, HD 91793, HIP 51821, CD−38°6579, 2MASS J10351285-3933453, PPM 287864, AAVSO 1030–39, SAO 201533 }}{{Starbox reference | Simbad = HD+91793 }}{{Starbox end}}{{Sky|10|35|12.8507|-|39|33|45.319|1000000000}}U Antliae (U Ant) is a star in the constellation Antlia. U Antliae is a red C-type carbon star and is an irregular variable star that varies between magnitudes 5.27 and 6.04. Approximately 900 light years from Earth, it shines with a luminosity approximately 8,000 times that of the Sun and has a surface temperature of 2,800 K. It is surrounded by two shells of dust, thought to have been ejected 14,000 and 10,000 years ago.[16] References1. ^1 2 {{cite DR2|5440991156144997504}} 2. ^{{cite journal|bibcode=2010A&A...523A..18D|arxiv=1008.1083|title=Probing the mass-loss history of AGB and red supergiant stars from CO rotational line profiles. II. CO line survey of evolved stars: Derivation of mass-loss rate formulae|journal=Astronomy and Astrophysics|volume=523|pages=A18|author1=De Beck|first1=E.|last2=Decin|first2=L.|last3=De Koter|first3=A.|last4=Justtanont|first4=K.|last5=Verhoelst|first5=T.|last6=Kemper|first6=F.|last7=Menten|first7=K. M.|year=2010|doi=10.1051/0004-6361/200913771}} 3. ^1 {{cite journal|title=A double dust shell surrounding the carbon star U Antliae|author1=Izumiura, H.|author2=Waters, L. B. F. M.|author3=de Jong, T.|author4=Loup, C.|author5=Bontekoe, Tj. R.|author6=Kester, D. J. M. | journal=Astronomy and Astrophysics|volume=323| pages=449–60 |year=1997 | bibcode=1997A&A...323..449I}} 4. ^1 2 {{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}Vizier catalog entry 5. ^1 2 {{cite journal|bibcode=2010A&A...518L.140K|arxiv=1005.2689|title=The detached dust shells of AQ Andromedae, U Antliae, and TT Cygni|journal=Astronomy and Astrophysics|volume=518|pages=L140|author1=Kerschbaum|first1=F.|last2=Ladjal|first2=D.|last3=Ottensamer|first3=R.|last4=Groenewegen|first4=M. A. T.|last5=Mecina|first5=M.|last6=Blommaert|first6=J. A. D. L.|last7=Baumann|first7=B.|last8=Decin|first8=L.|last9=Vandenbussche|first9=B.|last10=Waelkens|first10=C.|last11=Posch|first11=T.|last12=Huygen|first12=E.|last13=De Meester|first13=W.|last14=Regibo|first14=S.|last15=Royer|first15=P.|last16=Exter|first16=K.|last17=Jean|first17=C.|year=2010|doi=10.1051/0004-6361/201014633}} 6. ^1 2 {{cite journal|bibcode=2002yCat.2237....0D|title=VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system|journal=CDS/ADC Collection of Electronic Catalogues|volume=2237|author1=Ducati|first1=J. R.|year=2002}} 7. ^1 {{cite journal|bibcode=1975AnTok..15...47Y|title=The C-classification of spectra of carbon stars. II|journal=Tokyo|volume=15|pages=47|author1=Yamashita|first1=Y.|year=1975}} 8. ^1 {{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}} 9. ^1 {{cite journal|bibcode=2006AstL...32..759G|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|journal=Astronomy Letters|volume=32|issue=11|pages=759|author1=Gontcharov|first1=G. A.|year=2006|doi=10.1134/S1063773706110065|arxiv = 1606.08053 }} 10. ^1 {{cite web|url=http://www.aavso.org/vsx/index.php?view=detail.top&oid=446 |title=U Antliae |author =Otero, Sebastian |date=3 November 2011 |work=AAVSO Website|publisher=American Association of Variable Star Observers|accessdate=25 July 2014}}
[3][4][5][6][7][8][9][10] }}{{Stars of Antlia}}{{var-star-stub}} 9 : Slow irregular variables|Henry Draper Catalogue objects|Antlia|C-type stars|Objects with variable star designations|Hipparcos objects|HR objects|Asymptotic-giant-branch stars|Durchmusterung objects |