Садира (жұлдыз) бетінің кодын көру

{{Starbox begin
| name=Садира (Эридан Эпсилоны)
}}
{{Starbox image
 | image=[[Сурет:Eridanus epsilon location.png|250px]] |
 | caption=
}}
{{Starbox observe
| epoch=[[J2000.0]]
| constell=[[Eridanus (constellation)|Eridanus]]
| ra={{RA|03|32|55.8442}}<ref name=SIMBAD>{{cite web
 | url=http://simbad3.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+22049
 | title=HD 22049 -- Variable of BY Dra type 
 | work=SIMBAD
 | publisher=Centre de Données astronomiques de Strasbourg
 | accessdate=2007-11-29
}}</ref>
| dec={{DEC|−09|27|29.744 }}<ref name=SIMBAD/>
| appmag_v=3.73<ref name=SIMBAD/> }}
{{Starbox character
| class=K2V<ref name=SIMBAD/>
| b-v=+0.88<ref name=apj83>{{cite journal
 | last=Mendoza | first=E. E.
 | coauthors=Gomez, V. T.; Gonzalez, S.
 | title=UBVRI photometry of 225 Am stars.
 | journal=Astronomical Journal
 | year=1978
 | volume=83
 | pages=606–614
 | url=http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1978AJ.....83..606M
 | accessdate=2007-11-29
 | doi=10.1086/112242
 |issn = 0004-6256 }}</ref>
| u-b=+0.58<ref name=apj83/>
| r-i=+0.42
| v-r=+0.50
| variable=[[BY Draconis variable|BY Draconis]] }}
{{Starbox astrometry
| radial_v=+15.5±0.9<ref name=SIMBAD/>
| prop_mo_ra=−976.36<ref name=SIMBAD/>
| prop_mo_dec=17.98<ref name=SIMBAD/>
| parallax=310.74
| p_error=0.85
| parallax_footnote=<ref name=SIMBAD/>
| absmag_v=6.19<ref name=RECONS/> }}
{{Starbox detail
| age=(0.5–1.0){{Esp|9}}<ref name=aaa426>{{cite journal
 | author=Di Folco, E. ''et al''
 | title=VLTI near-IR interferometric observations of Vega-like stars. Radius and age of α PsA, β Leo, β Pic, ε Eri and τ Cet
 | journal=Astronomy and Astrophysics | year=2004
 | volume=426 | pages=601–617
 | url=http://adsabs.harvard.edu/abs/2004A&A...426..601D
 | accessdate=2008-07-24 }}</ref>
| metal=[Fe/H]=−0.13±0.04<ref name=aaa415>{{cite journal
 | last=Santos | first=N. C.
 | coauthors=Israelian, G.; Mayor, M.
 | title=Spectroscopic <nowiki>[Fe/H]</nowiki> for 98 extra-solar planet-host stars: Exploring the probability of planet formation 
 | journal=Astronomy & Astrophysics | year=2004 | volume=415
 | pages=1153–1166
 | url=http://arxiv.org/abs/astro-ph/0311541
 | accessdate=2007-11-29
 | doi=10.1051/0004-6361:20034469
}}—the percentage of iron is given by <math>\begin{smallmatrix}10^{-0.13} = 0.74\end{smallmatrix}</math>, or 74%</ref>
| mass=0.85<ref name=RECONS>{{cite web
 | author=Staff | date=[[8 маусым]], [[2007]]
 | url=http://www.chara.gsu.edu/RECONS/TOP100.posted.htm
 | title=The One Hundred Nearest Star Systems
 | publisher=Research Consortium on Nearby Stars
 | accessdate=2007-11-29 }}</ref>
| radius=0.84<ref name=apjss53>{{cite journal
 | last=Johnson | first=H. M. | coauthors=Wright, C. D.
 | title=Predicted infrared brightness of stars within 25 parsecs of the sun
 | journal=Astrophysical Journal Supplement Series
 | year=1983 | volume=53 | pages=643–711
 | url=http://adsbit.harvard.edu/abs/1983ApJS...53..643J
 | accessdate=2007-11-29
 | doi=10.1086/190905 }}—see p. 653.</ref>
| rotation=11.1 days
| gravity=4.57<ref>{{cite journal
 | author=Zhao, G.; Chen, Y. Q.; Qiu, H. M.; Li, Z. W.
 | title=Chemical Abundances of 15 Extrasolar Planet Host Stars
 | journal=The [[Astronomical Journal]] | year=2002
 | volume=124 | issue=4 | pages=2224–2232
 | url=http://www.journals.uchicago.edu/doi/full/10.1086/342862
 | accessdate=2007-06-01 
 | doi=10.1086/342862 <!--Retrieved from URL by DOI bot-->
}}</ref>
| luminosity=0.28
| temperature=5073±42<ref name=aaa415/> }}
{{Starbox reference
| Simbad = HD+22049
}}
{{Starbox catalog
| names = [[Flamsteed designation|18&nbsp;Eridani]], [[Bonner Durchmusterung|BD]]&nbsp;-09°697, [[General Catalogue of Trigonometric Parallaxes|GCTP]]&nbsp;742.00, [[Gliese-Jahreiss catalogue|GJ]]&nbsp;144, [[Henry Draper catalogue|HD]]&nbsp;22049, [[Hipparcos catalogue|HIP]]&nbsp;16537, [[Harvard Revised catalogue|HR]]&nbsp;1084, [[Luyten Half-Second catalogue|LHS]]&nbsp;1557, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;130564, [[Washington Double Star Catalog|WDS]]&nbsp;03330-0928<ref name=SIMBAD/>
}}
{{Starbox end}}

'''Садира''' ('''Эридан Эпсилоны''', ε Eri / ε Eridani) ({{lang-ar|аl-Sadirah}}) — K2 [[спектр табы]] [[бас тізбегіне]] жататын [[Эридан (шоқжұлдыз)|Эридан]] [[шоқжұлдыз]]ындағы [[жұлдыз]]. [[Күн (жұлдыз)|Күнді]] есепке алмағанда, [[телескоп]]сыз көрінетін жұлдыздар тізімінде 3-ші орын алады.

[[Санат:Эридан жоқжұлдызы]]
[[Санат:Ғаламшарлы жүйелер]]