“Lambda Aquilae”的意思、由来-开放百科全书

Lambda Aquilae is a main sequence star with a stellar classification of B9Vn,^[4] which means that, like the Sun, it is generating energy at its core through the nuclear fusion of hydrogen. It is more massive than the Sun, with about three times its mass, and radiates about 55^[13] times the Sun's luminosity from its outer envelope at a higher effective temperature of 11,780 K.^[15] This temperature gives Lambda Aquilae the blue-white hue that is a characteristic of B-type stars.^[26] Lambda Aquilae was one of the least variable stars observed by the Hipparcos satellite. It is a suspected Lambda Boötis star^[27] and has an age of about 160 million years.^[12]

This star lies about 5° from the galactic plane and about 30° from the line of sight to the Galactic Center. This region of the sky is crowded with other objects along the line of sight, with at least 55 located within 10 arcseconds of the star. Examination of the star shows no companions with an 85% probability.^[12] Despite this, it is suspected of being a spectroscopic binary star.^[27] That is, it may have an orbiting companion whose presence is revealed by displacements in the absorption lines in the spectrum caused by the Doppler effect. Based upon the width of these lines, the star is rotating rapidly, with a projected rotational velocity of {{nowrap|103 km s⁻¹}}.^[18]

Related space mission

NASA's Pioneer 11 space probe, launched in April 1973, exited the solar system in 1990 and continued in the direction of Lambda Aquilae. It is estimated that it will take around 4 million years for the probe to make its closest approach to its destination, assuming it will remain intact. However, NASA stopped communicating with Pioneer 11 since November 1995 because the space probe's power was already too weak to transmit any data.^[32]

Etymology

In Chinese, {{lang|zh|天弁}} ({{lang|zh-Latn|Tiān Biàn}}), meaning Market Officer, refers to an asterism consisting of λ Aquilae, α Scuti, δ Scuti, ε Scuti, β Scuti, η Scuti, 12 Aquilae, 15 Aquilae and 14 Aquilae.^[1] Consequently, λ Aquilae itself is known as {{lang|zh|天弁七}} ({{lang|zh-Latn|Tiān Biàn qī}}, {{lang-en|the Seventh Star of Market Officer}}.)^[2]

This star, together with η Aql, θ Aql, δ Aql, ι Aql and κ Aql made up the obsolete constellation Antinous.^[35]

References

1. ^{{zh icon}} 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, {{ISBN|978-986-7332-25-7}}.
2. ^{{zh icon}} 香港太空館 - 研究資源 - 亮星中英對照表 {{webarchive|url=https://web.archive.org/web/20081025110153/http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_ala_alz.htm |date=2008-10-25 }}, Hong Kong Space Museum. Accessed on line November 23, 2010.
3. ^¹{{citation | title=XHIP: An extended hipparcos compilation | last1=Anderson | first1=E. | last2=Francis | first2=Ch. | journal=Astronomy Letters | volume=38 | issue=5 | pages=331 | year=2012 | bibcode=2012AstL...38..331A | doi=10.1134/S1063773712050015 | arxiv=1108.4971 | postscript=. }}
4. ^¹²³⁴{{citation | display-authors=1 | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | title=UBVRIJKL photometry of the bright stars | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | issue=99 | pages=99 | year=1966 | bibcode=1966CoLPL...4...99J }}
5. ^¹²{{citation | display-authors=1 | last1=Cowley | first1=A. | last2=Cowley | first2=C. | last3=Jaschek | first3=M. | last4=Jaschek | first4=C. | title=A study of the bright A stars. I. A catalogue of spectral classifications | journal=Astronomical Journal | volume=74 | pages=375–406 |date=April 1969 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C }}
6. ^¹{{citation | display-authors=1 | title=Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions | journal=Veröff. Astron. Rechen-Inst. Heidelb | volume=35 | last1=Wielen | first1=R. | last2=Schwan | first2=H. | last3=Dettbarn | first3=C. | last4=Lenhardt | first4=H. | last5=Jahreiß | first5=H. | last6=Jährling | first6=R. | publisher=Astronomisches Rechen-Institut Heidelberg | issue=35 | pages=1 | year=1999 | bibcode=1999VeARI..35....1W }}
7. ^¹²{{citation | last1=Royer | first1=F. | last2=Zorec | first2=J. | last3=Gómez | first3=A. E. | title=Rotational velocities of A-type stars. III. Velocity distributions | journal=Astronomy and Astrophysics | volume=463 | issue=2 | pages=671–682 |date=February 2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R |arxiv = astro-ph/0610785 }}
8. ^¹²³⁴⁵{{citation | display-authors=1 | last1=Janson | first1=Markus | last2=Bonavita | first2=Mariangela | last3=Klahr | first3=Hubert | last4=Lafrenière | first4=David | last5=Jayawardhana | first5=Ray | last6=Zinnecker | first6=Hans | title=High-contrast Imaging Search for Planets and Brown Dwarfs around the Most Massive Stars in the Solar Neighborhood | journal=The Astrophysical Journal | volume=736 | issue=2 | page=89 |date=August 2011 | doi=10.1088/0004-637X/736/2/89 | bibcode=2011ApJ...736...89J |arxiv = 1105.2577 }}
9. ^¹²{{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. | last8=Martayan | first8=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 }}
10. ^¹²{{citation | display-authors=1 | last1=Lagrange | first1=A.-M. | last2=Desort | first2=M. | last3=Galland | first3=F. | last4=Udry | first4=S. | last5=Mayor | first5=M. | title=Extrasolar planets and brown dwarfs around A-F type stars. VI. High precision RV survey of early type dwarfs with HARPS | journal=Astronomy and Astrophysics | volume=495 | issue=1 | pages=335–352 |date=February 2009 | doi=10.1051/0004-6361:200810105 | bibcode=2009A&A...495..335L |arxiv = 0809.4636 }}
11. ^¹{{citation | title=lam Aql -- Star | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Lambda+Aquilae | accessdate=2011-12-29 }}
12. ^¹{{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=March 10, 2012 |df= }}
13. ^¹²³⁴{{citation | last1=Malagnini | first1=M. L. | last2=Morossi | first2=C. | title=Accurate absolute luminosities, effective temperatures, radii, masses and surface gravities for a selected sample of field stars | journal=Astronomy and Astrophysics Supplement Series | volume=85 | issue=3 | pages=1015–1019 |date=November 1990 | bibcode=1990A&AS...85.1015M }}
14. ^¹{{citation | work=Space Topics: Past Missions | title=Pioneer 10 and 11 | publisher=The Planetary Society | url=http://planetary.org/explore/topics/past_missions/pioneer_10_and_11.html | accessdate=2012-02-05 | deadurl=yes | archiveurl=https://web.archive.org/web/20120118170341/http://planetary.org/explore/topics/past_missions/pioneer_10_and_11.html | archivedate=2012-01-18 | df= }}
15. ^¹Ian Ridpath's Star Tales - Antonious

词条	Lambda Aquilae
释义	Properties Related space mission Etymology References External links {{Starbox begin \| name=Lambda Aquilae }}{{Starbox image \| image = \| caption=Location of λ Aquilae (circled) }}{{Starbox observe \| epoch = J2000 \| ra = {{RA\|19\|06\|14.93898}} \| dec = {{DEC\|−04\|52\|57.2007}} \| appmag_v = 3.43^[3] \| constell = Aquila }}{{Starbox character \| class = B9Vn^[4] \| r-i = \| v-r = \| b-v = −0.09^[3] \| u-b = −0.27^[3] \| variable = }}{{Starbox astrometry \| radial_v = −12.0^[7] \| prop_mo_ra = −19.68 \| prop_mo_dec = −90.37 \| parallax = 26.05 \| p_error = 0.81 \| parallax_footnote = \| absmag_v = +0.54^[11] }}{{Starbox detail \| mass = {{val\|3.1\|+0.1\|-0.1}}^[12] \| radius = 1.9^[13] \| luminosity = 55^[13] \| temperature = {{val\|11780}}^[15] \| metal_fe = 0.00^[12] \| gravity = 4.31^[13] \| rotational_velocity = 103^[18] \| age_myr = {{val\|160\|+20\|-20}}^[12] }}{{Starbox catalog \| names=λ Aql, 16 Aql, BD-05° 4876, FK5 717, HD 177756, HIP 93805, HR 7236, SAO 143021.^[20] }}{{Starbox reference \|Simbad=lam+Aql }}{{Starbox end}}Lambda Aquilae, Latinized from λ Aquilae, is a star in the constellation Aquila. It has the traditional name Al Thalimain, which it shares with ι Aquilae. The name is derived from the Arabic الثالمين al-thalīmain "the two ostriches". Lambda Aquilae is more precisely Al Thalimain Prior.{{citation needed\|date=July 2017}} It has an apparent visual magnitude of 3.43,^[3] which is bright enough to be seen with the naked eye. Parallax measurements place it at a distance of about {{Convert\|125\|ly\|pc\|abbr=off\|lk=on}} from Earth. Properties Lambda Aquilae is a main sequence star with a stellar classification of B9Vn,^[4] which means that, like the Sun, it is generating energy at its core through the nuclear fusion of hydrogen. It is more massive than the Sun, with about three times its mass, and radiates about 55^[13] times the Sun's luminosity from its outer envelope at a higher effective temperature of 11,780 K.^[15] This temperature gives Lambda Aquilae the blue-white hue that is a characteristic of B-type stars.^[26] Lambda Aquilae was one of the least variable stars observed by the Hipparcos satellite. It is a suspected Lambda Boötis star^[27] and has an age of about 160 million years.^[12] This star lies about 5° from the galactic plane and about 30° from the line of sight to the Galactic Center. This region of the sky is crowded with other objects along the line of sight, with at least 55 located within 10 arcseconds of the star. Examination of the star shows no companions with an 85% probability.^[12] Despite this, it is suspected of being a spectroscopic binary star.^[27] That is, it may have an orbiting companion whose presence is revealed by displacements in the absorption lines in the spectrum caused by the Doppler effect. Based upon the width of these lines, the star is rotating rapidly, with a projected rotational velocity of {{nowrap\|103 km s⁻¹}}.^[18] Related space mission NASA's Pioneer 11 space probe, launched in April 1973, exited the solar system in 1990 and continued in the direction of Lambda Aquilae. It is estimated that it will take around 4 million years for the probe to make its closest approach to its destination, assuming it will remain intact. However, NASA stopped communicating with Pioneer 11 since November 1995 because the space probe's power was already too weak to transmit any data.^[32] Etymology In Chinese, {{lang\|zh\|天弁}} ({{lang\|zh-Latn\|Tiān Biàn}}), meaning Market Officer, refers to an asterism consisting of λ Aquilae, α Scuti, δ Scuti, ε Scuti, β Scuti, η Scuti, 12 Aquilae, 15 Aquilae and 14 Aquilae.^[1] Consequently, λ Aquilae itself is known as {{lang\|zh\|天弁七}} ({{lang\|zh-Latn\|Tiān Biàn qī}}, {{lang-en\|the Seventh Star of Market Officer}}.)^[2] This star, together with η Aql, θ Aql, δ Aql, ι Aql and κ Aql made up the obsolete constellation Antinous.^[35] References 1. ^{{zh icon}} 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, {{ISBN\|978-986-7332-25-7}}. 2. ^{{zh icon}} 香港太空館 - 研究資源 - 亮星中英對照表 {{webarchive\|url=https://web.archive.org/web/20081025110153/http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_ala_alz.htm \|date=2008-10-25 }}, Hong Kong Space Museum. Accessed on line November 23, 2010. 3. ^¹{{citation \| title=XHIP: An extended hipparcos compilation \| last1=Anderson \| first1=E. \| last2=Francis \| first2=Ch. \| journal=Astronomy Letters \| volume=38 \| issue=5 \| pages=331 \| year=2012 \| bibcode=2012AstL...38..331A \| doi=10.1134/S1063773712050015 \| arxiv=1108.4971 \| postscript=. }} 4. ^¹²³⁴{{citation \| display-authors=1 \| last1=Johnson \| first1=H. L. \| last2=Iriarte \| first2=B. \| last3=Mitchell \| first3=R. I. \| last4=Wisniewskj \| first4=W. Z. \| title=UBVRIJKL photometry of the bright stars \| journal=Communications of the Lunar and Planetary Laboratory \| volume=4 \| issue=99 \| pages=99 \| year=1966 \| bibcode=1966CoLPL...4...99J }} 5. ^¹²{{citation \| display-authors=1 \| last1=Cowley \| first1=A. \| last2=Cowley \| first2=C. \| last3=Jaschek \| first3=M. \| last4=Jaschek \| first4=C. \| title=A study of the bright A stars. I. A catalogue of spectral classifications \| journal=Astronomical Journal \| volume=74 \| pages=375–406 \|date=April 1969 \| doi=10.1086/110819 \| bibcode=1969AJ.....74..375C }} 6. ^¹{{citation \| display-authors=1 \| title=Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions \| journal=Veröff. Astron. Rechen-Inst. Heidelb \| volume=35 \| last1=Wielen \| first1=R. \| last2=Schwan \| first2=H. \| last3=Dettbarn \| first3=C. \| last4=Lenhardt \| first4=H. \| last5=Jahreiß \| first5=H. \| last6=Jährling \| first6=R. \| publisher=Astronomisches Rechen-Institut Heidelberg \| issue=35 \| pages=1 \| year=1999 \| bibcode=1999VeARI..35....1W }} 7. ^¹²{{citation \| last1=Royer \| first1=F. \| last2=Zorec \| first2=J. \| last3=Gómez \| first3=A. E. \| title=Rotational velocities of A-type stars. III. Velocity distributions \| journal=Astronomy and Astrophysics \| volume=463 \| issue=2 \| pages=671–682 \|date=February 2007 \| doi=10.1051/0004-6361:20065224 \| bibcode=2007A&A...463..671R \|arxiv = astro-ph/0610785 }} 8. ^¹²³⁴⁵{{citation \| display-authors=1 \| last1=Janson \| first1=Markus \| last2=Bonavita \| first2=Mariangela \| last3=Klahr \| first3=Hubert \| last4=Lafrenière \| first4=David \| last5=Jayawardhana \| first5=Ray \| last6=Zinnecker \| first6=Hans \| title=High-contrast Imaging Search for Planets and Brown Dwarfs around the Most Massive Stars in the Solar Neighborhood \| journal=The Astrophysical Journal \| volume=736 \| issue=2 \| page=89 \|date=August 2011 \| doi=10.1088/0004-637X/736/2/89 \| bibcode=2011ApJ...736...89J \|arxiv = 1105.2577 }} 9. ^¹²{{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. \| last8=Martayan \| first8=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 }} 10. ^¹²{{citation \| display-authors=1 \| last1=Lagrange \| first1=A.-M. \| last2=Desort \| first2=M. \| last3=Galland \| first3=F. \| last4=Udry \| first4=S. \| last5=Mayor \| first5=M. \| title=Extrasolar planets and brown dwarfs around A-F type stars. VI. High precision RV survey of early type dwarfs with HARPS \| journal=Astronomy and Astrophysics \| volume=495 \| issue=1 \| pages=335–352 \|date=February 2009 \| doi=10.1051/0004-6361:200810105 \| bibcode=2009A&A...495..335L \|arxiv = 0809.4636 }} 11. ^¹{{citation \| title=lam Aql -- Star \| work=SIMBAD \| publisher=Centre de Données astronomiques de Strasbourg \| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Lambda+Aquilae \| accessdate=2011-12-29 }} 12. ^¹{{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=March 10, 2012 \|df= }} 13. ^¹²³⁴{{citation \| last1=Malagnini \| first1=M. L. \| last2=Morossi \| first2=C. \| title=Accurate absolute luminosities, effective temperatures, radii, masses and surface gravities for a selected sample of field stars \| journal=Astronomy and Astrophysics Supplement Series \| volume=85 \| issue=3 \| pages=1015–1019 \|date=November 1990 \| bibcode=1990A&AS...85.1015M }} 14. ^¹{{citation \| work=Space Topics: Past Missions \| title=Pioneer 10 and 11 \| publisher=The Planetary Society \| url=http://planetary.org/explore/topics/past_missions/pioneer_10_and_11.html \| accessdate=2012-02-05 \| deadurl=yes \| archiveurl=https://web.archive.org/web/20120118170341/http://planetary.org/explore/topics/past_missions/pioneer_10_and_11.html \| archivedate=2012-01-18 \| df= }} 15. ^¹Ian Ridpath's Star Tales - Antonious ^[3]^[4]^[5]^[6]^[7]^[8]^[9]^[10]^[11]^[12]^[13]^[14]^[15] }} External links {{citation \| first1=James B. \| last1=Kaler \| title=AL THALIMAIN PRIOR (Lambda Aquilae) \| work=Stars \| publisher=University of Illinois \| url=http://stars.astro.illinois.edu/sow/althalimainpr.html \| accessdate=2012-01-26 }} Image λ Aquilae {{Stars of Aquila}} 9 : Stars with proper names\|Henry Draper Catalogue objects\|Bayer objects\|Aquila (constellation)\|B-type main-sequence stars\|Hipparcos objects\|Flamsteed objects\|HR objects\|Durchmusterung objects
随便看	Callimetopus cynthioides Callimetopus danilevskyi Callimetopus degeneratus Callimetopus gloriosus Callimetopus griseus Callimetopus illecebrosus Callimetopus illecebrosus m. casta Callimetopus illecebrosus var. castus Callimetopus irroratus Callimetopus irroratus var. albidus Callimetopus irroratus var. bifasciatus Callimetopus juliae Callimetopus laterivitta Callimetopus lazarevi Callimetopus lituratus Callimetopus longicollis Callimetopus longior Callimetopus lumawigi Callimetopus mindanaoensis Callimetopus mindorensis Callimetopus multialboguttatus Callimetopus nigritarsis Callimetopus niveuseta Callimetopus ochraceosignatus Callimetopus ornatus

Properties

Related space mission

Etymology

References

External links