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词条 106 Aquarii
释义

  1. References

  2. External links

{{about|i1 Aquarii|other star systems with this Bayer designation|i Aquarii}}{{Starbox begin
| name=106 Aquarii
}}{{Starbox image
| image =

| caption=Location of 106 Aquarii (circled)[1]
}}{{Starbox observe
| epoch = J2000.0 (ICRS)
| ra = {{RA|23|44|12.07852}}
| dec = {{DEC|–18|16|36.9999}}
| appmag_v = +5.244[4]
| constell = Aquarius
}}{{Starbox character
| class = B9 V[5]
| b-v = –0.086[4]
| u-b = –0.239[4]
| variable =
}}{{Starbox astrometry
| radial_v = +14.0[8]
| prop_mo_ra = +27.23[9]
| prop_mo_dec = –2.94[9]
| parallax = 8.7588
| p_error = 0.2859
| parallax_footnote =
| absmag_v = −0.07[12]
}}{{Starbox detail
| mass = 3.0[13]
| radius = 2.7–3.2[14]
| gravity = {{Val|3.791|0.011}}[13]
| metal_fe =
| age_myr =
| luminosity = 151.88[12]
| temperature = {{Val|11555|50|fmt=commas}}[13]
| rotational_velocity = {{Val|328|48}}[13]
}}{{Starbox catalog
| names={{odlist | B=i1 Aqr | f=106 Aqr | BD=−19° 6500 | FK5=1621 | HD=222847 | HIP=117089 | HR=8998 | SAO=165854 }}[19]
}}{{Starbox reference
| Simbad=106+Aqr
}}{{Starbox end}}

106 Aquarii, abbreviated 106 Aqr, is a single[20] star in the equatorial constellation of Aquarius. 106 Aquarii is the Flamsteed designation, and it also bears the Bayer designation i1 Aquarii. It has an apparent visual magnitude of +5.2,[4] making it bright enough to be viewed from the suburbs according to the Bortle Dark-Sky Scale. An annual parallax shift of 8.61[9] milliarcseconds yields an estimated distance of around {{Convert|380|ly|pc|abbr=off|lk=on}} from Earth.

The spectrum of this star fits a stellar classification of B9 V,[5] indicating this is a B-type main sequence star. It is spinning rapidly with a projected rotational velocity of 328 km/s.[13] The star has 3[13] times the mass of the Sun and is radiating 152[12] times the Sun's luminosity from its photosphere at an effective temperature of 11,555 K.[13] X-ray emission with a luminosity of {{Val|6.0e29|u=erg s−1}} has been detected from this star. This is unusual since a B-type star normally does not have any significant X-ray emission. Instead, it may have an undetected lower mass companion.[28]

References

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=. }}
2. ^Of the grouping of four stars within the circle, 106 Aquarii is the second from the left per:
{{citation | first1=Roger W. | display-authors=1 | last1=Sinnott | first2=Michael A. C. | last2=Perryman | title=Millennium Star Atlas | volume=3 | publisher=Sky Publishing Corporation and the European Space Agency | date=1997 | page=1351 | isbn=0-933346-82-4 | postscript=. }}
3. ^{{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 | postscript=. |arxiv = 0708.1752 }}
4. ^{{citation | last1=Houk | first1=Nancy | title=Michigan catalogue of two-dimensional spectral types for the HD stars | volume=4 | publication-place=Ann Arbor | publisher=Dept. of Astronomy, University of Michigan | date=1978 | bibcode=1988mcts.book.....H | postscript=. }}
5. ^{{citation | display-authors=1 | title=Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions | 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 | date=1999 | bibcode=1999VeARI..35....1W | postscript=. }}
6. ^{{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 | postscript=. }}
7. ^{{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 and Astrophysics | volume=367 | pages=521–524 | doi=10.1051/0004-6361:20000451 | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289 | postscript=. |date=February 2001}}
8. ^{{citation | title=106 Aqr -- Star | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=106+Aquarii | accessdate=2012-07-15 | postscript=. }}
9. ^{{citation | display-authors=1 | 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 | doi=10.1051/0004-6361:20010452 | bibcode=2001A&A...372..152H | arxiv=astro-ph/0103201 | postscript=. |date=June 2001}}
10. ^{{citation | title=A Stellar Rotation Census of B Stars: From Zams to Tams | journal=The Astrophysical Journal | volume=722 | pages=605–619 | year=2010 | display-authors=1 | last1=Huang | first1=Wenjin | last2=Gies | first2=D. R | last3=McSwain | first3=M. V | bibcode=2010ApJ...722..605H | arxiv=1008.1761 | doi=10.1088/0004-637X/722/1/605 | postscript=. }}
11. ^{{citation | title=A spectroscopic survey on the multiplicity of high-mass stars | journal=Monthly Notices of the Royal Astronomical Society | display-authors=1 | last1=Chini|first1= R. | last2=Hoffmeister | first2= V. H. | last3=Nasseri | first3=A. | last4=Stahl | first4=O. | last5=Zinnecker | first5=H. | volume=424 | issue=3 | pages=1925–1929 | year=2012 | bibcode=2012MNRAS.424.1925C | doi=10.1111/j.1365-2966.2012.21317.x | arxiv=1205.5238 | postscript=. }}
[1][2][3][4][5][6][7][8][9][10][11]
}}

External links

  • Aladin previewer, image
  • Aladin sky atlas, image
{{Stars of Aquarius}}

8 : Aquarius (constellation)|Bayer objects|Flamsteed objects|B-type main-sequence stars|Hipparcos objects|Henry Draper Catalogue objects|HR objects|Durchmusterung objects

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