अल्फ़ा लेपोरिस तारा का स्रोत देखें

{{Starbox begin
| name= α लेपोरिस <br><small>α Leporis</small>
}}
{{Starbox image
 | image=
{{Location mark
|image=Lepus constellation map.svg|alt=|float=center|width=280
|label=|position=right
|mark=Red circle.svg|mark_width=14|mark_link=α Lep
|x=530|y=474
}}
|caption=[[ख़रगोश तारामंडल]] में α लेपोरिस की स्थिति (चक्र में)
}}
{{Starbox observe
| epoch    = J2000
| ra       = {{RA|05|32|43.81612}}<ref name=aaa474_2_653/>
| dec      = {{DEC|&minus;17|49|20.2414}}<ref name=aaa474_2_653/>
| appmag_v = 2.589<ref name=sps1966/>
| constell = [[ख़रगोश तारामंडल]]
}}
{{Starbox character
| class    = F0&nbsp;Ib<ref name=aj121_4_2148/>
| b-v      = +0.217<ref name=sps1966/>
| u-b      = +0.386<ref name=sps1966/>
| variable = 
}}
{{Starbox astrometry
| radial_v = +23.9<ref name=rgcrv/>
| prop_mo_ra  = +3.56<ref name=aaa474_2_653/>
| prop_mo_dec = +1.18<ref name=aaa474_2_653/>
| parallax = 1.47
| p_error  = 0.14
| parallax_footnote =<ref name=aaa474_2_653/>
| absmag_v = &minus;6.574<ref name=aaa474_2_653/> 
}}
{{Starbox detail
| mass     = {{nowrap|13.9 ± 0.8}}<ref name=mnras402_2_1369/>
| radius   = 129<ref name=lang2006/>
| luminosity  = 32,000<ref name=aaa449_2_655/>
| temperature = {{nowrap|6,850 ± 80}}<ref name=mnras402_2_1369/>
| metal_fe = +0.04<ref name=apjs99_659/>
| gravity  = {{nowrap|1.34 ± 0.07}}<ref name=mnras402_2_1369/>
| rotational_velocity = 21<ref name=aaa393_897/>
| age_myr  = 13<ref name=mnras402_2_1369/>
}}
{{Starbox catalog
| names = Arneb, [[:en:Flamsteed designation|11]]&nbsp;Leporis, [[:en:Bonner Durchmusterung|BD]]−17°1166, [[:en:FK5]]&nbsp;207, [[:en:Henry Draper catalogue|HD]]&nbsp;36673, [[:en:Hipparcos catalogue|HIP]]&nbsp;25985, [[:en:Harvard Revised catalogue|HR]]&nbsp;1865, [[:en:Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;150547
}}
{{Starbox reference
|Simbad=Alpha+Leporis
}}
{{Starbox end}}
'''अल्फ़ा लेपोरिस''' (Alpha Leporis, α Lep) या '''अरनॅब''' (Arneb) [[ख़रगोश तारामंडल]] का सबसे [[तेजस्विता|तेजस्वी]] तारा है। यह [[सूर्य|सूरज]] से लगभग 2,218 [[प्रकाश-वर्ष|प्रकाशवर्ष]] की दूरी पर स्थित है। इसका द्रव्यमान [[सौर द्रव्यमान|सूरज के द्रव्यमान]] का 14 गुना है और इसकी त्रिज्या [[सौर अर्धव्यास|सूरज की त्रिज्या]] का 129 गुना है। यह [[तारों की श्रेणियाँ|F0 Ib श्रेणी]] का [[महादानव तारा]] है।

== इन्हें भी देखें ==
* [[ख़रगोश तारामंडल]]
* [[महादानव तारा]]

== सन्दर्भ ==
{{reflist|30em|refs=

<ref name=aaa474_2_653>{{cite journal | 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>

<ref name=aj121_4_2148>{{citation | last1=Gray | first1=R. O. | last2=Napier | first2=M. G. | last3=Winkler | first3=L. I. | title=The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. I. Precise Spectral Types for 372 Stars | journal=The Astronomical Journal | volume=121 | issue=4 | pages=2148–2158 |date=April 2001 | doi=10.1086/319956 | bibcode=2001AJ....121.2148G }}</ref>

<ref name=rgcrv>{{citation | last1=Evans | first1=D. S. | date=June 20–24, 1966 | editor1-last=Batten | editor1-first=Alan Henry | editor2-last=Heard | editor2-first=John Frederick | contribution=The Revision of the General Catalogue of Radial Velocities | title=Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 | location=University of Toronto | publisher=International Astronomical Union | bibcode=1967IAUS...30...57E }}</ref>

<ref name=aaa393_897>{{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 }}</ref>

<ref name=sps1966>{{citation | display-authors=1 | last1=Gutierrez-Moreno | first1=Adelina | last2=Moreno | first2=H. | last3=Stock | first3=J. | last4=Torres | first4=C. | last5=Wroblewski | first5=H. | title=A System of photometric standards | publisher=Publicaciones Universidad de Chile, Department de Astronomy | volume=1 | pages=1–17 | date=1966 | bibcode=1966PDAUC...1....1G }}</ref>

<ref name=mnras402_2_1369>{{cite journal | display-authors=1 | last1=Lyubimkov | first1=Leonid S. | last2=Lambert | first2=David L. | last3=Rostopchin | first3=Sergey I. | last4=Rachkovskaya | first4=Tamara M. | last5=Poklad | first5=Dmitry B.
 | title=Accurate fundamental parameters for A-, F- and G-type Supergiants in the solar neighbourhood | journal=Monthly Notices of the Royal Astronomical Society | volume=402 | issue=2 | pages=1369–1379 |date=February 2010 | doi=10.1111/j.1365-2966.2009.15979.x | bibcode=2010MNRAS.402.1369L |arxiv = 0911.1335 }}</ref>

<ref name=aaa449_2_655>{{citation | display-authors=1 | last1=Smiljanic | first1=R. | last2=Barbuy | first2=B. | last3=de Medeiros | first3=J. R. | last4=Maeder | first4=A. | title=CNO in evolved intermediate mass stars | journal=Astronomy and Astrophysics | volume=449 | issue=2 | pages=655–671 |date=April 2006	 | doi=10.1051/0004-6361:20054377 | bibcode=2006A&A...449..655S |arxiv = astro-ph/0511329 }}</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 | access-date=13 दिसंबर 2018 | archive-url=https://web.archive.org/web/20190520044254/https://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41 | archive-date=20 मई 2019 | url-status=live }}. The radius (R<sub>*</sub>) is given by:
:<math>\begin{align} 2\cdot R_*
 & = \frac{(10^{-3}\cdot 680\cdot 1.77)\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
 & \approx 259\cdot R_{\bigodot}
\end{align}</math></ref>

}}

[[श्रेणी:ख़रगोश तारामंडल]]
[[श्रेणी:ऍफ़-प्रकार महादानव तारे]]
[[श्रेणी:संदिग्ध परिवर्ती तारे]]