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| {{Starbox begin
| | Hi there, I am Alyson Pomerleau and I believe psychic readings, [http://www.publicpledge.com/blogs/post/7034 http://www.publicpledge.com/blogs/post/7034], it seems fairly good when you spirit messages ([http://kjhkkb.net/xe/notice/374835 Read Homepage]) say it. One of the things she enjoys most is canoeing and she's been performing it for quite a whilst. North Carolina is exactly where we've been residing for years and will by no means move. Credit authorising is how he tends to make cash.<br><br>Also visit my site psychic readings online - [http://chorokdeul.co.kr/index.php?document_srl=324263&mid=customer21 chorokdeul.co.kr] - |
| | name=Pi Aurigae | |
| }}
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| {{Starbox image
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| | image =
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| <div style="position: relative">[[File:Auriga IAU.svg|250px|alt=Diagram showing star positions and boundaries of the Auriga constellation and its surroundings]]
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| <div style="position: absolute; left: 43.0%; top: 28.4%;">[[File:Cercle rouge 100%.svg|12px]]</div>
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| </div>
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| | caption = The location of π Aurigae (circled)
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| }}
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| {{Starbox observe
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| | epoch = J2000
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| | ra = {{RA|05|59|56.0994}}<ref name=aaa474_2_653/>
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| | dec = {{DEC|+45|56|12.248}}<ref name=aaa474_2_653/>
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| | appmag_v = 4.25<ref name=clpl4_99/>
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| | constell = [[Auriga (constellation)|Auriga]]
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| }}
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| {{Starbox character
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| | class = M3 II<ref name=araa11_29/>
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| | r-i = 1.48
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| | v-r =
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| | b-v = +1.72<ref name=clpl4_99/>
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| | u-b = +1.83<ref name=clpl4_99/>
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| | variable = [[slow irregular variable|LC]]<ref name=al32_9_604/>
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| }}
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| {{Starbox astrometry
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| | radial_v = {{nowrap|0.71 ± 0.76}}<ref name=aaa430_165/>
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| | prop_mo_ra = -2.42<ref name=aaa474_2_653/>
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| | prop_mo_dec = -7.32<ref name=aaa474_2_653/>
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| | parallax = 3.88
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| | p_error = 0.85
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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 = 5.0
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| | radius = 265<ref name=lang2006/>
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| | luminosity = 9590
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| | temperature = 3530
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| | metal_fe =
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| | rotational_velocity =
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| | age_myr = 70-100
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| }}
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| {{Starbox catalog
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| | names=35 Aurigae, [[Bonner Durchmusterung|BD]]+45 1217, [[Henry Draper Catalogue|HD]] 40239, [[Hipparcos catalogue|HIP]] 28404, [[Harvard Revised catalogue|HR]] 2091, [[Smithsonian Astrophysical Observatory catalogue|SAO]] 40756.<ref name=SIMBAD/>
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| }}
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| {{Starbox end}}
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| '''Pi Aurigae''' (π Aur, π Aurigae) is the [[Bayer designation]] for a [[star]] in the northern [[constellation]] of [[Auriga (constellation)|Auriga]]. Located about one degree north of the 2nd magnitude star [[Beta Aurigae]],<ref name=omeara2007/> Pi Aurigae is visible to the naked eye with an [[apparent visual magnitude]] of 4.25<ref name=clpl4_99/> Based upon [[parallax]] measurements, it is approximately {{Convert|800|ly|pc|abbr=off|lk=on}} away from Earth.<ref name=aaa474_2_653/> At that distance, the brightness of the star is diminished by 0.54 in magnitude from [[extinction (astronomy)|extinction]] caused by [[interstellar medium|interstellar gas and dust]].<ref name=aaa430_165/>
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| Pi Aurigae is a [[bright giant]] star with a [[stellar classification]] of M3 II.<ref name=araa11_29/> The measured [[angular diameter]] of this star, after correction for [[limb darkening]], is {{nowrap|9.56 ± 0.10 [[milliarcsecond|mas]]}}.<ref name=aaa431_773/> At the estimated distance of Pi Aurigae,<ref name=aaa474_2_653/> this yields a physical size of about 265 times the [[Solar radius|radius of the Sun]].<ref name=lang2006/> It is classified as an [[slow irregular variable]] of type LC and its brightness varies from magnitude +4.24 to +4.34.<ref name=al32_9_604/>
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| ==References==
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| {{reflist|refs=
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| <ref name=aaa474_2_653>{{citation | first1=Floor | last1=van Leeuwen |date=November 2007 | title=Validation of the new Hipparcos reduction | volume=474 | issue=2 | pages=653–664 | bibcode=2007A&A...474..653V | arxiv=0708.1752v1 | doi=10.1051/0004-6361:20078357 | journal=Astronomy and Astrophysics | postscript=. }} ''Note:'' see VizieR catalogue [http://vizier.u-strasbg.fr/viz-bin/Cat?I/311 I/311].</ref> | |
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| <ref name=araa11_29>{{citation | last1=Morgan | first1=W. W. | last2=Keenan | first2=P. C. | title=Spectral Classification | journal=Annual Review of Astronomy and Astrophysics | volume=11 | page=29 | year=1973 | doi=10.1146/annurev.aa.11.090173.000333 | bibcode=1973ARA&A..11...29M | 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 | last1=Johnson | display-authors=1 | 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=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 | postscript=. }}</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{(258\cdot 9.56\cdot 10^{-3})\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
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| & \approx 530\cdot R_{\bigodot}
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| \end{align}</math></ref>
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| <ref name=al32_9_604>{{citation | display-authors=1 | last1=Ruban | first1=E. V. | last2=Alekseeva | first2=G. A. | last3=Arkharov | first3=A. A. | last4=Hagen-Thorn | first4=E. I. | last5=Galkin | first5=V. D. | last6=Nikanorova | first6=I. N. | last7=Novikov | first7=V. V. | last8=Pakhomov | first8=V. P. | last9=Puzakova | first9=T. Yu. | title=Spectrophotometric observations of variable stars | journal=Astronomy Letters | volume=32 | issue=9 | pages=604–607 |date=September 2006 | doi=10.1134/S1063773706090052 | bibcode=2006AstL...32..604R | postscript=. }}</ref>
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| <ref name=SIMBAD>{{citation | title=pi. Aur -- Pulsating variable Star | work=SIMBAD Astronomical Database | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Pi+Aurigae | accessdate=2012-08-20 | postscript=. }}</ref>
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| <ref name=omeara2007>{{citation | first1=Stephen James | last1=O'Meara | title=Steve O'Meara's Herschel 400 Observing Guide | publisher=Cambridge University Press | year=2007 | isbn=0521858933 | page=23 | url=http://books.google.com/books?id=Nyh9fAC_tpIC&pg=PA23 | postscript=. }}</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%202091 HR 2091]
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| * [http://aladin.u-strasbg.fr/AladinPreview?-c=05+59+56.0994%2B45+56+12.248&ident=V*+pi.+Aur&submit=Aladin+previewer Image Pi Aurigae]
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| {{Stars of Auriga}}
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| [[Category:Henry Draper Catalogue objects|40239]]
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| [[Category:Hipparcos objects|028404]]
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| [[Category:Bayer objects|Aurigae, Pi]]
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| [[Category:Auriga (constellation)]]
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| [[Category:Irregular variables]]
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| [[Category:M-type bright giants]]
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Hi there, I am Alyson Pomerleau and I believe psychic readings, http://www.publicpledge.com/blogs/post/7034, it seems fairly good when you spirit messages (Read Homepage) say it. One of the things she enjoys most is canoeing and she's been performing it for quite a whilst. North Carolina is exactly where we've been residing for years and will by no means move. Credit authorising is how he tends to make cash.
Also visit my site psychic readings online - chorokdeul.co.kr -