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| {{Starbox begin
| | Hi there, I am Alyson Boon although it is not the name on my beginning certificate. Distributing manufacturing is how he makes a residing. The favorite hobby for him and his children is to play lacross and he would by no means [http://black7.mireene.com/aqw/5741 psychic readers] give it love psychic readings ([http://chungmuroresidence.com/xe/reservation_branch2/152663 chungmuroresidence.com]) up. Some time ago she selected to live in Alaska and her parents live nearby.<br><br>Also visit my site - accurate psychic predictions ([http://findyourflirt.net/index.php?m=member_profile&p=profile&id=117823 http://findyourflirt.net/index.php?m=member_profile&p=profile&id=117823]) |
| | name = 19 Arietis
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| }}
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| {{Starbox observe
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| | epoch = J2000
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| | ra = {{RA|02|13|03.30440}}<ref name=aaa474_2_653/>
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| | dec = {{DEC|+15|16|47.5005}}<ref name=aaa474_2_653/>
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| | appmag_v = 5.70<ref name=clpl4_99/>
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| | constell = [[Aries (constellation)|Aries]]
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| }}
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| {{Starbox character
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| | class = M0 III<ref name=mnras389_2_869/>
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| | r-i = 0.97
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| | v-r =
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| | b-v = +1.55<ref name=clpl4_99/>
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| | u-b = +1.95<ref name=clpl4_99/>
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| | variable = [[Semiregular variable star|Semiregular]]<ref name=mnras355_2_601/>
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| }}
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| {{Starbox astrometry
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| | radial_v = {{nowrap|21.11 ± 0.26}}<ref name=aaa430_165/>
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| | prop_mo_ra = +97.95<ref name=aaa474_2_653/>
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| | prop_mo_dec = -20.30<ref name=aaa474_2_653/>
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| | parallax = 6.81
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| | p_error = 0.38
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| | parallax_footnote = <ref name=aaa474_2_653/>
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| | absmag_v =
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| }}
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| {{Starbox detail
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| | mass =
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| | radius = 39<ref name=lang2006/>
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| | luminosity =
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| | temperature = 3,690<ref name=aaa460_3_855/>
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| | metal_fe = {{nowrap|–0.02 ± 0.11}}<ref name=aas134_523/>
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| | rotational_velocity =
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| | age_myr =
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| }}
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| {{Starbox catalog
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| | names = [[Durchmusterung|BD]]+14 357, [[FK5]] 1057, [[Henry Draper Catalogue|HD]] 13596, [[Hipparcos Catalogue|HIP]] 10328, [[Bright Star Catalogue|HR]] 648, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 92841.<ref name=SIMBAD/>
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| }}
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| {{Starbox end}}
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| '''19 Arietis''' is the [[Flamsteed designation]] for a [[star]] in the northern [[constellation]] of [[Aries (constellation)|Aries]]. It has an [[apparent visual magnitude]] of 5.70,<ref name=clpl4_99/> which means it is faintly visible to the naked eye. Based upon an annual [[parallax]] shift of 6.81 [[milliarcsecond|mas]],<ref name=aaa474_2_653/> it is approximately {{Convert|480|ly|pc|abbr=off|lk=on}} away from Earth. At that distance, the brightness of the star is diminished by 0.21 in magnitude from [[extinction (astronomy)|extinction]] caused by [[interstellar medium|interstellar gas and dust]].<ref name=aaa430_165/>
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| This is a [[red giant]] star with a [[stellar classification]] of M0 III.<ref name=mnras389_2_869/> It is a [[semi-regular variable]] with periods of 32 and 275 days; the brightness of the star changes by an amplitude of 0.14 in magnitude during those intervals.<ref name=mnras355_2_601/> The measured [[angular diameter]] of this star, after correction for [[limb darkening]], is {{nowrap|2.44 ± 0.03 [[milliarcsecond|mas]]}}.<ref name=aaa431_773/> At the estimated distance of Delta Ophiuchi,<ref name=aaa474_2_653/> this yields a physical size of about 39 times the [[Solar radius|radius of the Sun]].<ref name=lang2006/> The [[effective temperature]] of the [[stellar atmosphere|outer envelope]] is 3,690 K,<ref name=aaa460_3_855/> giving it the cool reddish glow of an [[M-type star]].<ref name=csiro/>
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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 | arxiv=0708.1752 | postscript=. }}</ref>
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| <ref name=aaa430_165>{{citation | display-authors=1 | last1=Famaey | first1=B. | last2=Jorissen | first2=A. | last3=Luri | first3=X. | last4=Mayor | first4=M. | last5=Udry | first5=S. | last6=Dejonghe | first6=H. | last7=Turon | first7=C. | title=Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters | journal=Astronomy and Astrophysics | volume=430 | issue=1 | pages=165–186 |date=January 2005 | doi=10.1051/0004-6361:20041272 | bibcode=2005A&A...430..165F | arxiv=astro-ph/0409579 | 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=mnras389_2_869>{{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=Monthly Notices of the Royal Astronomical Society | volume=389 | issue=2 | pages=869–879 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | postscript=. |date=September 2008}}</ref>
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| <ref name=mnras355_2_601>{{citation | last1=Yeşilyaprak | first1=C. | last2=Aslan | first2=Z. | title=Period-luminosity relation for M-type semiregular variables from Hipparcos parallaxes | journal=Monthly Notices of the Royal Astronomical Society | volume=355 | issue=2 | pages=601–607 | doi=10.1111/j.1365-2966.2004.08344.x | bibcode=2004MNRAS.355..601Y | arxiv=0704.3150 | postscript=. |date=December 2004}}</ref>
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| <ref name=SIMBAD>{{citation | title=19 Ari -- Variable Star | work=SIMBAD Astronomical Database | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=19+Arietis | accessdate=2012-07-18 | 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 | doi=10.1051/0004-6361:20042039 | bibcode=2005A&A...431..773R | postscript=. |date=February 2005}}</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 | postscript=. }}. The radius (R<sub>*</sub>) is given by:
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| :<math>\begin{align} 2\cdot R_*
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| & = \frac{(147\cdot 2.44\cdot 10^{-3})\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
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| & \approx 77.2\cdot R_{\bigodot}
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| \end{align}</math></ref>
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| <ref name=aas134_523>{{citation | last1=Taylor | first1=B. J. | title=Catalogs of temperatures and [Fe/H] averages for evolved G and K stars | journal=Astronomy and Astrophysics Supplement | volume=134 | pages=523–524 | doi=10.1051/aas:1999153 | bibcode=1999A&AS..134..523T | postscript=. |date=February 1999}}</ref>
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| <ref name=aaa460_3_855>{{citation | display-authors=1 | last1=Wittkowski | first1=M. | last2=Aufdenberg | first2=J. P. | last3=Driebe | first3=T. | last4=Roccatagliata | first4=V. | last5=Szeifert | first5=T. | last6=Wolff | first6=B. | title=Tests of stellar model atmospheres by optical interferometry. IV. VINCI interferometry and UVES spectroscopy of Menkar | journal=Astronomy and Astrophysics | volume=460 | issue=3 |date=December 2006 | pages=855–864 | doi=10.1051/0004-6361:20066032 | bibcode=2006A&A...460..855W | postscript=. |arxiv = astro-ph/0610150 |date=December 2006}}</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 }}</ref>
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| }}
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| ==External links==
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| * [http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HR%20648 HR 648]
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| * [http://aladin.u-strasbg.fr/AladinPreview?-c=02+13+03.3053%2B15+16+47.494&ident=SV*+ZI+++114&submit=Aladin+previewer Image 19 Arietis]
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| {{Stars of Aries}}
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| [[Category:Henry Draper Catalogue objects|13596]]
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| [[Category:Hipparcos objects|010328]]
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| [[Category:Flamsteed objects|Arietis, 19]]
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| [[Category:Aries (constellation)]]
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| [[Category:M-type giants]]
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