القوس الجنوبي: الفرق بين النسختين
| [نسخة منشورة] | [نسخة منشورة] |
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طلا ملخص تعديل |
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سطر 1:
{{بداية صندوق نجم
| الاسم = القوس الجنوبي
}}
{{صورة صندوق نجم
| الصورة =<div style="position: relative">[[File:Sagittarius constellation map.svg|250px]]<div style="position: absolute; left:51.0%; top:71.0%">[[File:Locator Dot2.gif|12px]]</div></div>
| العنوان = مكان القوس الجنوبي (ε)
}}
{{صندوق رصد نجم
| حقبة = J2000
| الكوكبة = [[Sagittarius (constellation)|Sagittarius]]
| المطلع_المستقيم = {{RA|18|24|10.31840}}<ref name=aaa474_2_653/>
| الميل = {{DEC|–34|23|04.6193}}<ref name=aaa474_2_653/>
| القدر_الظاهري = +1.85<ref name=clpl4/>
}}
{{صندوق خصائص نجم
| التصنيف = B9.5 III<ref name=houk1979/>
| b-v = –0.03<ref name=clpl4/>
| u-b = +0.13<ref name=clpl4/>
| التغير =
}}
{{صندوق هندسة نجم
| السرعة_ش = –15<ref name=rgcrv/>
| حركة_خاصة_م.م = –39.42<ref name=aaa474_2_653/>
| حركة_خاصة_م.ف = –124.20<ref name=aaa474_2_653/>
| التزيح = 22.76
| خطأ_تزيح = 0.24
| parallax_footnote = <ref name=aaa474_2_653/>
| قدر.م = –1.41<ref name=aaa372/>
}}
{{صندوق تفاصيل نجم
| عنصر1 = ε Sgr A
| كتلة = {{nowrap|3.515 ± 0.138}}<ref name=aaa372/>
| نصف_قطر = 6.8<ref name=lang2006/>
| جاذبية = 4.50<ref name=adelman2004/>
| معدنية_فو =
| عمر_ميغا = 232<ref name=aaa372/>
| ضياء = 363<ref name=aaa372/>
| درجة_الحرارة = 9,960<ref name=aaa501_1_297/>
| سرعة_دوران = 236<ref name=aaa393_897/>
| عنصر2 = ε Sgr B
| كتلة2 = 0.95<ref name=aaa372/>
| ضياء2 = 0.89<ref name=aaa372/>
| درجة_الحرارة2 = 5,807<ref name=aaa372/>
}}
{{صندوق فهرس نجم
| تسميات =Kaus Australis, [[Bayer designation|ε]] Sagittarii, ε Sgr, Epsilon Sgr, [[Flamsteed designation|20]] Sagittarii, [[Catalog of Components of Double and Multiple Stars|CCDM]] J18242-3423A, [[Fifth Fundamental Catalogue|FK5]] 689, [[Boss General Catalogue|GC]] 25100, [[Henry Draper catalogue|HD]] 169022, [[Hipparcos catalogue|HIP]] 90185, [[Bright Star Catalogue|HR]] 6879, [[Index Catalogue of Visual Double Stars|IDS]] 18175-3427 A, [[PPM Star Catalogue|PPM]] 297655, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 210091, [[Washington Double Star Catalog|WDS]] J18242-3423A
}}
{{صندوق مرجع نجم
| سیمباد = Epsilon+Sgr
}}
{{نهاية صندوق نجم}}
'''القوس الجنوبي''' أو إبسلون الرامي Epsilon Sagittarii اسمه التقليدي Kaus Australis مشتق من الاسم العربي. وهو [[نجم مزدوج]] في [[كوكبة]] [[برج الرامي (فلك)|الرامي]] وهو ألمع نجم في الكوكبة. يبعد 144.64 [[سنة ضوئية]] عن [[الأرض]] ويفصل بين النجمين المكونيين للثنائية 32 [[ثانية قوسية]]. ويبلغ القدر الظاهري 1.79+.<ref>[http://www.daviddarling.info/encyclopedia/K/Kaus_Australis.html Kaus Australis (Epsilon Sagittarii)<!-- عنوان مولد بالبوت -->]</ref>
==انظر أيضاً==
السطر 4 ⟵ 56:
* [[برج الرامي (فلك)|كوكبة الرامي]].
== المراجع ==
{{reflist|colwidth=25em|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>
<ref name=houk1979>{{citation | title=Michigan catalogue of two-dimensional spectral types for the HD stars | journal=Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0 | volume=3 | last1=Houk | first1=Nancy | last2=Smith-Moore | first2=M. | publication-place=Ann Arbor, Michigan | publisher=Dept. of Astronomy, University of Michigan | date=1979 | bibcode=1982mcts.book.....H }}</ref>
<ref name=rgcrv>{{cite conference | last=Evans | first=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 | journal=Determination of Radial Velocities and their Applications | location=University of Toronto | publisher=International Astronomical Union | bibcode=1967IAUS...30...57E | volume=30 | page=57 }}</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 | issue=3 |arxiv = astro-ph/0205255 }}</ref>
<ref name=clpl4>{{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Mitchell | first2=R. I. | last3=Iriarte | first3=B. | last4=Wisniewski | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | date=1966 | bibcode=1966CoLPL...4...99J | pages=99–100 }}</ref>
<ref name=aaa501_1_297>{{citation | display-authors=1 | last1=Zorec | first1=J. | last2=Cidale | first2=L. | last3=Arias | first3=M. L. | last4=Frémat | first4=Y. | last5=Muratore | first5=M. F. | last6=Torres | first6=A. F. | last7=Martayan | first7=C. | title=Fundamental parameters of B supergiants from the BCD system. I. Calibration of the (λ_1, D) parameters into Teff | journal=Astronomy and Astrophysics | volume=501 | issue=1 | pages=297–320 |date=July 2009 | doi=10.1051/0004-6361/200811147 | bibcode=2009A&A...501..297Z |arxiv = 0903.5134 }}</ref>
<ref name=adelman2004>{{cite conference | last1=Adelman | first1=Saul J. | contribution=The physical properties of normal A stars | title=The A-Star Puzzle, held in Poprad, Slovakia, July 8-13, 2004 | editor1-first=J. | editor1-last=Zverko | editor2-first=J. | editor2-last=Ziznovsky | editor3-first=S. J. | editor3-last=Adelman | editor4-first=W. W. | editor4-last=Weiss | work=IAU Symposium | issue=224 | publication-place=Cambridge, UK | publisher=Cambridge University Press | pages=1–11 |date=December 2004 | doi=10.1017/S1743921304004314 | bibcode=2004IAUS..224....1A | volume=2004}}</ref>
<ref name=aaa372>{{citation | last1=Hubrig | first1=S. | last2=Le Mignant | first2=D. | last3=North | first3=P. | last4=Krautter | first4=J. | title=Search for low-mass PMS companions around X-ray selected late B stars | journal=Astronomy and Astrophysics | volume=372 | pages=152–164 |date=June 2001 | doi=10.1051/0004-6361:20010452 | bibcode=2001A&A...372..152H | arxiv=astro-ph/0103201 }}</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=http://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41 }}. The radius (R<sub>*</sub>) is given by:
:<math>\begin{align} 2\cdot R_*
& = \frac{(10^{-3}\cdot 43.9\cdot 1.44)\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
& \approx 13.6\cdot R_{\bigodot}
\end{align}</math></ref>
}}
{{شريط بوابات|فضاء|علم الفلك}}
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