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Baris 1:
{{Starbox begin
| name = Pi Draconis
}}
{{Starbox observe
| epoch = [[J2000.0]]
| equinox = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
| constell = [[Draco (constellation)|Draco]]
| ra = {{RA|19|20|40.09333}}<ref name=vanLeeuwen2007/>
| dec = {{DEC|+65|42|52.3095}}<ref name=vanLeeuwen2007/>
| appmag_v = 4.59<ref name=Johnson1966/>
}}
{{Starbox character
| class = A2 IIIs<ref name=Royer2002/><ref name=Eggleton2008/>
| b-v = +0.02<ref name=Johnson1966/>
| u-b = +0.06<ref name=Johnson1966/>
| r-i =
| variable =
}}
{{Starbox astrometry
| radial_v = −28.1 ± 1.1<ref name=Gontcharov2006/>
| prop_mo_ra = +15.09<ref name=vanLeeuwen2007/>
| prop_mo_dec = +41.12<ref name=vanLeeuwen2007/>
| parallax = 14.25
| p_error = 0.12
| parallax_footnote = <ref name=vanLeeuwen2007/>
| absmag_v = +0.37<ref name=Anderson2012/>
}}
{{Starbox detail
| source =
| mass = 2.70<ref name=DeRosa2014/>
| radius = 3.2<ref name=lang2006/>
| luminosity = 60<ref name=mcdonald2012/>
| temperature = 9,125<ref name=Yuece2014/>
| gravity = 3.80<ref name=Yuece2014/>
| metal_fe = 0.42<ref name=Anderson2012/>
| rotational_velocity = {{Val|26|1}}<ref name=Royer2002/>
| age_myr = 350<ref name=DeRosa2014/>
}}
{{Starbox catalog
| names = π Dra, 58 Dra, BD+65° 1345, FK5 3547, HD 182564, HIP 95081, HR 7371, SAO 18299<ref name=SIMBAD/>
}}
{{Starbox reference
| Simbad = pi.+Dra
}}
{{Starbox end}}
'''Pi Draconis (π Dra / π Draconis)''' adalah salah satu bintang pada rasi [[Draco]] . Bintang ini memiliki [[magnitudo]] 4.60 dan merupakan bintang dengan kelas F8IV-V. Bintang ini berada pada jarak 225 [[tahun cahaya]] dari [[Bumi]].
== Etimologi ==
Nama tradisional bintang ini adalah '''Tais I''' atau '''Tais al Awwal'''<ref>http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720005197_1972005197.pdf</ref> yang berarti "kambing pertama" dalam [[bahasa Arab]].
Nama lainnya untuk bintang ini adalah:
{| class="wikitable"
|-
Baris 12 ⟶ 59:
|天廚六 / Tiānchúliù||[[China]] ||bintang keenam pada rasi [[Daftar asterisme di Batasan Ungu yang Terlarang#Dapur di Langit|Dapur di Langit]]<ref name=sb1>salah satu rasi bintang menurut bangsa Cina</ref>
|}
Selain [[rasi]] [[Draco]], bintang ini juga merupakan anggota dari berbagai rasi atau asterisma berikut
{| class="wikitable"
Baris 21 ⟶ 68:
! anggota lainnya
|-
| 天廚 / Tiānchú || [[China]] || [[Daftar asterisme di Batasan Ungu yang Terlarang#Dapur di Langit|Dapur di Langit]]||[[Delta Draconis|δ Dra]], [[Sigma Draconis|σ Dra]], [[Epsilon Draconis|ε Dra]], [[Rho Draconis|ρ Dra]]
|-
| Al Tāis<ref name=sb0>http://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Draco*.html</ref> || [[Bahasa Arab|Arab]] || kambing||[[Delta Draconis|δ Dra]], [[Epsilon Draconis|ε Dra]], [[Rho Draconis|ρ Dra]]
|}
== Referensi ==
{{Reflist
<ref name=vanLeeuwen2007>{{citation
| title=Validation of the new Hipparcos reduction
| last1=van Leeuwen | first1=F.
| journal=Astronomy and Astrophysics
| volume=474 | issue=2 | pages=653–664 | date=2007
| arxiv=0708.1752 | bibcode=2007A&A...474..653V
| doi=10.1051/0004-6361:20078357 | postscript=. }}</ref>
<ref name=Gontcharov2006>{{citation
| last1=Gontcharov | first1=G. A.
| title=Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system
| journal=Astronomy Letters
| volume=32| issue=11 | pages=759–771| date=November 2006
| doi=10.1134/S1063773706110065 | bibcode=2006AstL...32..759G
| arxiv=1606.08053 | postscript=. }}</ref>
<ref name=Anderson2012>{{citation
| title=XHIP: An extended hipparcos compilation
| last1=Anderson | first1=E. | last2=Francis | first2=Ch.
| journal=Astronomy Letters
| volume=38 | issue=5 | pages=331 | year=2012
| bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015
| arxiv=1108.4971 | postscript=. }}</ref>
<ref name=mcdonald2012>{{citation
| display-authors=1 | last1=McDonald | first1= I.
| last2=Zijlstra | first2=A. A. | last3=Boyer | first3=M. L.
| title=Fundamental parameters and infrared excesses of Hipparcos stars
| journal=Monthly Notices of the Royal Astronomical Society
| volume=427 | pages=343 | year=2012
| bibcode=2012MNRAS.427..343M | doi=10.1111/j.1365-2966.2012.21873.x
| arxiv=1208.2037 | postscript=. }}</ref>
<ref name=Eggleton2008>{{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 | date=September 2008
| doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E
| arxiv=0806.2878 | postscript=. }}</ref>
<ref name=lang2006>{{citation
| first1=Kenneth R. | last1=Lang | postscript=.
| title=Astrophysical formulae | volume=1
| series=Astronomy and astrophysics library | edition=3rd
| publisher=[[Birkhäuser]] | date=2006 | isbn=3-540-29692-1
| url=https://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41
}} The radius (R<sub>*</sub>) is given by:
:<math>\begin{align} 2\cdot R_*
& = \frac{(70.2\cdot 0.427\cdot 10^{-3})\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
& \approx 6.4\cdot R_{\bigodot}
\end{align}</math></ref>
<ref name=Yuece2014>{{citation | postscript=.
| title=Elemental Abundance Analyses with DAO Spectrograms. XXXIV. A Three-Dimensional Graphical Examination of the Elemental Abundances of the Mercury-Manganese and Metallic-Line Stars
| last1=Yüce | first1=Kutluay | last2=Adelman | first2=Saul J.
| journal=Publications of the Astronomical Society of the Pacific
| volume=126 | issue=938 | pages=345 | date=April 2014
| doi=10.1086/676335 | bibcode=2014PASP..126..345Y }}</ref>
<ref name=DeRosa2014>{{citation
| display-authors=1
| last1=De Rosa | first1=R. J. | last2=Patience | first2=J.
| last3=Wilson | first3=P. A. | last4=Schneider | first4=A.
| last5=Wiktorowicz | first5=S. J. | last6=Vigan | first6=A.
| last7=Marois | first7=C. | last8=Song | first8=I.
| last9=Macintosh | first9=B. | last10=Graham | first10=J. R.
| last11=Doyon | first11=R. | last12=Bessell | first12=M. S.
| last13=Thomas | first13=S. | last14=Lai | first14=O.
| title=The VAST Survey - III. The multiplicity of A-type stars within 75 pc
| journal=Monthly Notices of the Royal Astronomical Society
| volume=437 | issue=2 | pages=1216–1240 | date=January 2014
| doi=10.1093/mnras/stt1932 | bibcode=2014MNRAS.437.1216D
| arxiv=1311.7141 | postscript=. }}</ref>
<ref name=Royer2002>{{citation
| display-authors=1 | last1=Royer | first1=F.
| last2=Grenier | first2=S. | last3=Baylac | first3=M.-O.
| last4=Gómez | first4=A. E. | last5=Zorec | first5=J.
| title=Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i
| journal=Astronomy and Astrophysics
| volume=393 | pages=897–911 | date=October 2002
| doi=10.1051/0004-6361:20020943 | bibcode=2002A&A...393..897R
| arxiv=astro-ph/0205255 | postscript=. }}</ref>
<ref name=Johnson1966>{{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>
<ref name=SIMBAD>{{cite simbad
| title=pi. Dra
| accessdate=2017-05-30 | postscript=. }}</ref>
}}
[[Kategori:Rasi bintang Draco]]
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