| 词条 | Lambda Lyrae |
| 释义 |
| name=Lambda Lyrae }}{{Starbox observe | epoch=J2000.0 | constell=Lyra | ra={{RA|19|00|00.82568}}[1] | dec={{DEC|+32|8|43.8527}}[1] | appmag_v=4.937[3] }}{{Starbox character | class=K2.5 II[4] | b-v=+1.455[3] | u-b=+1.609[3] }}{{Starbox astrometry | radial_v={{nowrap|-17.69 ± 0.02}}[7] | prop_mo_ra=6.08[1] | prop_mo_dec=9.96[1] | parallax=2.95 | p_error=0.25 | parallax_footnote=[1] | absmag_v={{val|-3.75|+0.65|-0.50}}[4] }}{{Starbox detail | mass = {{nowrap|6.3 ± 0.8}}[12] | radius = 120[13] | luminosity = 2,228[14] | temperature = 4,220[4] | gravity = 2.21[4] | metal_fe = −0.02[4] | rotational_velocity = {{val|3.2|1.0}}[4] | age_myr = {{nowrap|58.4 ± 22.6}}[12] }}{{Starbox catalog | names=λ Lyrae, 15 Lyrae, BD+31 3424, GSC 02643-03347, HD 176670, HIP 93279, HR 7192, SAO 67682. }}{{Starbox reference |Simbad=lam+Lyr }}{{Starbox end}} Lambda Lyrae (λ Lyr) is a 5th magnitude star in the constellation Lyra, approximately 1,100 light years away from Earth. It is an orange bright giant star of the spectral type K2.5II. It is much brighter and larger, yet cooler, than the Sun. The star is about 6.3 solar masses in mass and has a diameter more than 100 times larger than the Sun's. References1. ^1 2 3 4 5 6 {{citation | display-authors=1 | last1=Carney | first1=Bruce W. | last2=Gray | first2=David F. | last3=Yong | first3=David | last4=Latham | first4=David W. | last5=Manset | first5=Nadine | last6=Zelman | first6=Rachel | last7=Laird | first7=John B. | title=Rotation and Macroturbulence in Metal-Poor Field Red Giant and Red Horizontal Branch Stars | journal=The Astronomical Journal | volume=135 | issue=3 | pages=892–906 |date=March 2008 | doi=10.1088/0004-6256/135/3/892 | bibcode=2008AJ....135..892C | arxiv = 0711.4984 | postscript=.}} [1][2][3][4][5][6][7]2. ^1 2 3 4 5 {{citation | first=F. | last=van Leeuwen | title=Validation of the new Hipparcos reduction | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=November 2007 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | arxiv=0708.1752 | postscript=.}} 3. ^1 {{citation | display-authors=1 | last1 = Famaey | first1 = B. | last2 = Jorissen | first2 = A. | last3 = Luri | first3 = X. | last4 = Mayor | first4 = M. | last5 = Udry | first5 = S. | last6 = Dejonghe | first6 = H. | last7 = Turon | first7 = C. | title = Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters | journal = Astronomy and Astrophysics | volume = 430 | pages = 165–186 | date = 2005 | doi = 10.1051/0004-6361:20041272 | bibcode = 2005A&A...430..165F | postscript=.|arxiv = astro-ph/0409579 }} 4. ^1 2 3 {{citation | last1=Jennens | first1=P. A. | last2=Helfer | first2=H. L. | title=A new photometric metal abundance and luminosity calibration for field G and K giants | journal=Monthly Notices of the Royal Astronomical Society | volume=172 | pages=667–679 |date=September 1975 | bibcode=1975MNRAS.172..667J | doi=10.1093/mnras/172.3.667 | postscript=.}} 5. ^1 {{cite journal | 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 | issue=1 | pages=343–57 | date=2012 | bibcode=2012MNRAS.427..343M | arxiv = 1208.2037 | doi = 10.1111/j.1365-2966.2012.21873.x | postscript=.}} 6. ^1 2 {{citation | last1=Tetzlaff | first1=N. | last2=Neuhäuser | first2=R. | last3=Hohle | first3=M. M. | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun | doi=10.1111/j.1365-2966.2010.17434.x | journal=Monthly Notices of the Royal Astronomical Society | volume=410 | pages=190 | year=2011 | arxiv=1007.4883 | bibcode=2011MNRAS.410..190T | postscript=.}} 7. ^1 {{citation | display-authors=1 | last1=Pasinetti Fracassini | first1=L. E. | last2=Pastori | first2=L. | last3=Covino | first3=S. | last4=Pozzi | first4=A. | title=Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics | journal=Astronomy & Astrophysics | volume=367 | pages=521–24 | date=2001 | bibcode=2001A&A...367..521P | doi=10.1051/0004-6361:20000451 | arxiv=astro-ph/0012289 | postscript=.}} }}{{Stars of Lyra}}{{giant-star-stub}} 8 : Lyra (constellation)|Bayer objects|Flamsteed objects|Hipparcos objects|K-type bright giants|Henry Draper Catalogue objects|HR objects|Durchmusterung objects |
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