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| {{Starbox begin
| | Hi there. Allow me begin by introducing the author, her title is Sophia Boon but she never really favored that title. To perform lacross is the factor I love most of all. Mississippi is exactly where his house is. My working day occupation is an invoicing officer but I've currently utilized for another 1.<br><br>My web page [http://www.youronlinepublishers.com/authWiki/AdolphvhBladenqq clairvoyants] |
| | name = Omega Andromedae
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| }}
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| {{Starbox image
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| | image =
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| <div style="position: relative">[[File:Andromeda IAU.svg|250px|alt=Diagram showing star positions and boundaries of the Andromeda constellation and its surroundings]]
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| <div style="position: absolute; left: 34.3%; top: 32.6%;">[[File:Cercle rouge 100%.svg|12px]]</div>
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| </div>
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| | caption = Location of ω Andromedae (circled)
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| }}
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| {{Starbox observe
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| | epoch = J2000
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| | ra = {{RA|01|27|39.38177}}<ref name=aaa474_2_653/>
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| | dec = {{DEC|+45|24|24.0727}}<ref name=aaa474_2_653/>
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| | appmag_v = +4.83<ref name=aaa418_989/><ref name=clpl4_99/>
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| | constell = [[Andromeda (constellation)|Andromeda]]
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| }}
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| {{Starbox character
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| | class = F5 IVe<ref name=SIMBAD/>
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| | b-v = +0.42<ref name=clpl4_99/>
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| | u-b = +0.00<ref name=clpl4_99/>
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| | variable =
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| }}
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| {{Starbox astrometry
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| | radial_v = +14.7<ref name=aaa418_989/>
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| | prop_mo_ra = +356.99<ref name=aaa474_2_653/>
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| | prop_mo_dec = –109.40<ref name=aaa474_2_653/>
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| | parallax = 34.94
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| | p_error = 0.31
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| | parallax_footnote = <ref name=aaa474_2_653/>
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| | absmag_v = +2.57<ref name=aaa418_989/>
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| }}
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| {{Starbox detail
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| | mass =
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| | radius = 2.2<ref name=lang2006/>
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| | luminosity = 7.1<ref name=aaa405_723/>
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| | temperature = 6,628<ref name=aaa405_723/>
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| | metal_fe = –0.16<ref name=aaa418_989/>
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| | rotational_velocity = 57.1<ref name=aaa493_3_1099/>
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| | age_gyr = 2.1<ref name=aaa418_989/>
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| }}
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| {{Starbox catalog
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| | names= 48 Andromedae, [[Star catalogue#BD.2FCD.2FCPD|BD]]+44°307, [[FK5]] 1040, [[Henry Draper Catalogue|HD]] 8799, [[Hipparcos catalogue|HIP]] 6813, [[Star catalogue#BS, BSC, HR|HR]] 417, [[Star catalogue#SAO|SAO]] 37228.<ref name=SIMBAD/>
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| }}
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| {{Starbox reference
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| | Simbad=HD+8799
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| }}
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| {{Starbox end}}
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| '''Omega Andromedae''' (ω And, ω Andromedae) is the [[Bayer designation]] for a [[binary star]]<ref name=apj698_1_28/> system in the northern [[constellation]] of [[Andromeda (constellation)|Andromeda]]. Based upon [[parallax]] measurements made during the [[Hipparcos]] mission, this system is located at a distance of approximately {{Convert|93.3|ly|pc|abbr=off|lk=on}} from [[Earth]]. The [[apparent visual magnitude]] of Omega Andromedae is +4.83,<ref name=aaa418_989/> which makes it bright enough to be seen with the naked eye.
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| The primary component of this system has a [[stellar classification]] of F5 IVe.<ref name=SIMBAD/> The IV [[luminosity class]] indicates that it is probably a [[subgiant star]] that is in the process of [[stellar evolution|evolving]] away from the [[main sequence]] as the supply of hydrogen at its core becomes exhausted. The measured [[angular diameter]] of the primary star is {{nowrap|0.70 ± 0.03 [[milliarcsecond|mas]]}}.<ref name=aaa431_773/> At the estimated distance of this system, this yields a physical size of about 2.2 times the [[Solar radius|radius of the Sun]].<ref name=lang2006/> It is emitting about seven times the luminosity of the Sun from its [[stellar atmosphere|outer atmosphere]] at an [[effective temperature]] of 6,628 K.<ref name=aaa405_723/> This heat gives it the yellow-white hued glow of an [[F-type star]].<ref name=csiro/>
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| In 2008, the companion star was resolved using [[adaptive optics]] at the [[Lick Observatory]]. Subsequent observations showed the magnitude difference between the two stars is 3.65 ± 0.03 and they are separated by 0.669 [[arcsecond]]s.<ref name=apj698_1_28/>
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| ==References==
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| {{Reflist|refs=
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| <ref name=aaa474_2_653>{{citation | first=F. | last=van Leeuwen |date=November 2007 | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | postscript=. |arxiv = 0708.1752 }}</ref>
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| <ref name=aaa418_989>{{citation | title=The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs | display-authors=1 | last1=Nordström | first1=B. | last2=Mayor | first2=M. | last3=Andersen | first3=J. | last4=Holmberg | first4=J. | last5=Pont | first5=F. | last6=Jørgensen | first6=B. R. | last7=Olsen | first7=E. H. | last8=Udry | first8=S. | last9=Mowlavi | first9=N. | journal=Astronomy and Astrophysics | volume=418 | pages=989–1019 |date=May 2004 | doi=10.1051/0004-6361:20035959 | bibcode=2004A&A...418..989N | arxiv=astro-ph/0405198 | postscript=. }}</ref>
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| <ref name=aaa493_3_1099>{{citation | last1=Schröder | first1=C. | last2=Reiners | first2=A. | last3=Schmitt | first3=J. H. M. M. | title=Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo | journal=Astronomy and Astrophysics | volume=493 | issue=3 | pages=1099–1107 |date=January 2009 | doi=10.1051/0004-6361:200810377 | bibcode=2009A&A...493.1099S | postscript=. }}</ref>
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| <ref name=clpl4_99>{{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | year=1966 | bibcode=1966CoLPL...4...99J | postscript=. }}</ref>
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| <ref name=SIMBAD>{{citation | title=LTT 10517 -- High proper-motion Star | work=SIMBAD Astronomical Object Database | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Omega+Andromedae | accessdate=2012-06-26 | postscript=. }}</ref>
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| <ref name=apj698_1_28>{{citation | last1=Gladysz | first1=Szymon | last2=Christou | first2=Julian C. | title=Reference-Less Detection, Astrometry, and Photometry of Faint Companions with Adaptive Optics | journal=The Astrophysical Journal | volume=698 | issue=1 | pages=28–42 |date=June 2009 | doi=10.1088/0004-637X/698/1/28 | bibcode=2009ApJ...698...28G | postscript=. |arxiv = 0805.1870 }}</ref>
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| <ref name=aaa405_723>{{citation | display-authors=1 | last1=do Nascimento | first1=J. D., Jr. | last2=Canto Martins | first2=B. L. | last3=Melo | first3=C. H. F. | last4=Porto de Mello | first4=G. | last5=De Medeiros | first5=J. R. | title=On the link between rotation, chromospheric activity and Li abundance in subgiant stars | journal=Astronomy and Astrophysics | volume=405 | pages=723–731 |date=July 2003 | doi=10.1051/0004-6361:20030633 | bibcode=2003A&A...405..723D | arxiv=astro-ph/0307196 | postscript=. }}</ref> | |
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| <ref name=aaa431_773>{{citation | last1=Richichi | pages=A. | last2=Percheron | first2=I. | last3=Khristoforova | first3=M. | title=CHARM2: An updated Catalog of High Angular Resolution Measurements | journal=Astronomy and Astrophysics | volume=431 | pages=773–777 |date=February 2005 | doi=10.1051/0004-6361:20042039 | bibcode=2005A&A...431..773R }}</ref>
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| <ref name=lang2006>{{citation | first1=Kenneth R. | last1=Lang | title=Astrophysical formulae | volume=1 | series=Astronomy and astrophysics library | edition=3 | publisher=Birkhäuser | year=2006 | isbn=3-540-29692-1 | url=http://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41 }}. The radius (R<sub>*</sub>) is given by:
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| :<math>\begin{align} 2\cdot R_*
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| & = \frac{(28.6\cdot 0.70\cdot 10^{-3})\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
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| & \approx 4.31\cdot R_{\bigodot}
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| \end{align}</math></ref>
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| <ref name=csiro>{{citation | title=The Colour of Stars | date=December 21, 2004 | work=Australia Telescope, Outreach and Education | publisher=Commonwealth Scientific and Industrial Research Organisation | url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html | accessdate=2012-01-16 | postscript=. }}</ref>
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| }}
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| ==External links==
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| * [http://aladin.u-strasbg.fr/AladinPreview?-c=NLTT++4832&ident=NLTT++4832&submit=Aladin+previewer Image ω Andromedae]
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| * [http://www.site.uottawa.ca:4321/astronomy/index.html#highpropermotionstar High proper-motion Star]
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| {{Stars of Andromeda}}
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| [[Category:Henry Draper Catalogue objects]]
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| [[Category:Bayer objects|Andromedae, Omega]]
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| [[Category:Flamsteed objects|Andromedae, 48]]
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| [[Category:Andromeda (constellation)]]
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| [[Category:F-type subgiants]]
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Hi there. Allow me begin by introducing the author, her title is Sophia Boon but she never really favored that title. To perform lacross is the factor I love most of all. Mississippi is exactly where his house is. My working day occupation is an invoicing officer but I've currently utilized for another 1.
My web page clairvoyants