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Baris 4:
{{Starbox image
| image =
<div style="position: relative">[[FileBerkas:Draco IAU.svg|250px|alt=Diagram showing star positions and boundaries of the Draco constellation and its surroundings]]
<div style="position: absolute; left: 43.8%; top: 47.2%;">[[FileBerkas:Cercle rouge 100%.svg|12px]]</div>
</div>
| caption=Lokasi η Draconis (dilingkari)
Baris 13:
| ra = {{RA|16|23|59.48594}}<ref name=aaa474_2_653/>
| dec = {{DEC|+61|30|51.1699}}<ref name=aaa474_2_653/>
| appmag_v = +2.,73<ref name=pasj60_4_781/>
| constell = [[Draco (constellation)|Draco]]
}}
{{Starbox character
| class = G8&nbsp;III<ref name=pasj60_4_781/>
| b-v = +0.,91<ref name=aass34_1/>
| u-b = +0.,70<ref name=aass34_1/>
| variable =
}}
{{Starbox astrometry
| radial_v = –14.,3<ref name=gcsrv/>
| prop_mo_ra = –17.,02<ref name=aaa474_2_653/>
| prop_mo_dec = +56.,95<ref name=aaa474_2_653/>
| parallax = 35.42
| p_error = 0.09
| parallax_footnote = <ref name=aaa474_2_653/>
| absmag_v = +0.,58<ref name=aaa361_614/>
}}
{{Starbox detail
| mass = 2.,55<ref name=pasj60_4_781/>
| radius = 11<ref name=lang2006/>
| gravity = 2.,82<ref name=pasj60_4_781/>
| metal_fe = –0.,04<ref name=pasj60_4_781/>
| age_myr = 550<ref name=pasj60_4_781/>
| luminosity = 60<ref name=pasj60_4_781/>
| temperature = 5,.055<ref name=pasj60_4_781/>
| rotational_velocity = 8<ref name=coapa239_1/>
}}
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}}
{{Starbox end}}
'''Eta Draconis (η Dra / η Draconis)''' adalah salah satu bintang di rasi [[Draco]] . Eta Draconis memiliki [[magnitudo tampak]] +2.,73<ref name=pasj60_4_781/> dan merupakan bintang raksasa kuning (''yellow giant'') dengan [[kelas G8IIIspektrum]] G8 III.<ref name=pasj60_4_781/> Kecemerlangannya setara dengan 50 kali [[Matahari]]. Bintang ini berada pada jarak 8892,1 [[tahun cahaya]] (28,2 [[parsec]]) dari [[BumiMatahari]].<ref name=aaa474_2_653/>
 
== Etimologi ==
 
Nama tradisional bintang ini adalah '''Aldhibain''' (berasal dari [[bahasa Arab]] الذئبين ''al-Dhibain'') berarti "dua serigala". Nama lainnya untuk bintang ini adalah :
 
{| class="wikitable"
Baris 60:
! arti
|-
|紫微左垣三, 少宰 / Zǐwēizuǒyuánsān, Shǎozǎi||[[China]] ||bintang ketiga pada rasi [[Daftar asterisme di Batasan Ungu yang Terlarang#Dinding di Kiri|Dinding di Kiri]], <ref name=sb0>salah satu rasi bintang menurut bangsa Cina</ref>, Pejabat Kedua
|}
Selain [[rasi]] [[Draco]], bintang ini juga merupakan anggota dari berbagai rasi atau asterisma berikut :
 
{| class="wikitable"
Baris 80:
{{br}}
{{Reflist|refs=
 
 
<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 }}</ref>
Baris 93 ⟶ 92:
 
<ref name=aass34_1>{{cite journal | last1=Nicolet | first1=B. | date=1978 | title=Photoelectric photometric Catalogue of homogeneous measurements in the UBV System | journal=Astronomy and Astrophysics Supplement Series | volume=34 | pages=1–49 | bibcode=1978A&AS...34....1N }}</ref>
 
<ref name=mnras389_2_869>{{cite journal | 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 }}</ref>
 
<ref name=aaa431_773>{{citation | last1=Richichi | first1=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>
 
<ref name=lang2006>{{citation | first1=Kenneth R. | last1=Lang | 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:
Baris 106 ⟶ 101:
<ref name=SIMBAD>{{cite simbad | title=eta Dra | accessdate=2012-02-20 }}</ref>
 
}}▼
<ref name=kaler>{{citation | first1=James B. | last1=Kaler | work=Stars | title=AL DHIBAIN "PRIOR" (Eta Draconis) | publisher=[[University of Illinois]] | url=http://stars.astro.illinois.edu/sow/aldhibprior.html | accessdate=2012-02-20 }}</ref>
 
[[Kategori:Rasi bintang Draco]]▼
 
<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 |deadurl=yes |archiveurl=https://www.webcitation.org/6630AbtJZ?url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |archivedate=2012-03-10 |df= }}</ref>
 
▲}}
{{bintang-stub}}
 
▲[[Kategori:Rasi bintang Draco]]
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