请输入您要查询的百科知识:

 

词条 35 Aquilae
释义

  1. References

  2. External links

{{Starbox begin
| name = 35 Aquilae
}}{{Starbox image
| image={{Location mark
|image=Aquila constellation map.svg|alt=|float=center|width=260
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=35 Aql
|x=584|y=530
}}
|caption=Location of 35 Aquilae (circled)
}}{{Starbox observe
| epoch = J2000
| ra = {{RA|19|29|00.98795}}
| dec = {{DEC|+01|57|01.6159}}
| appmag_v = 5.80[3]
| constell = Aquila
}}{{Starbox character
| class = A0 V[4]
| r-i =
| v-r =
| b-v = +0.08[3]
| u-b = +0.07[3]
| variable = δ Sct[7]
}}{{Starbox astrometry
| radial_v = +12[8]
| prop_mo_ra = –1.01
| prop_mo_dec = –32.83
| parallax = 16.34
| p_error = 0.36
| parallax_footnote =
| absmag_v =
}}{{Starbox detail
| mass = 2.1[12]
| radius = 1.8[12]
| luminosity = 14[12]
| temperature = {{nowrap|8,939 ± 304}}[15]
| metal_fe = {{nowrap|–1.30 ± 0.50}}[15]
| gravity = {{nowrap|4.53 ± 0.23}}[15]
| rotational_velocity = 110[18]
| age_myr =
}}{{Starbox catalog
| names = V1431 Aquilae, AG+01° 2294, BD+01° 4010, GCRV 11908, HD 183324, HIP 95793, HR 7400, SAO 124675.[19]
}}{{Starbox reference
| Simbad=35+Aql
}}{{Starbox end}}35 Aquilae (abbreviated 35 Aql) is a star in the equatorial constellation of Aquila. 35 Aquilae is its Flamsteed designation though it also bears the Bayer designation c Aquilae. The apparent visual magnitude of this star is 5.8,[3] which means it is a faint star but visible to the naked eye from dark suburban or rural skies. It has an annual parallax shift of 16.34 mas that is caused by the Earth's orbit around the Sun. This yields a distance estimate of {{Convert|200|ly|pc|abbr=off|lk=on}}, give or take a 4 light-year margin of error. At this distance, the visual magnitude is diminished by 0.26 from extinction caused by interstellar gas and dust.[15]

The spectrum of 35 Aquilae fits a stellar classification of A0 V,[4] indicating it is an A-type main sequence star. Compared to the Sun, it has 210% of the mass and 180% of the radius.[12] As such, it is much brighter than the Sun, emitting 14[12] times the luminosity from its outer atmosphere at an effective temperature of 8,939 K.[15] This heat causes it to glow with the white-hot hue of an A-type star.[26] 35 Aquilae is spinning rapidly with a projected rotational velocity of 110 km/s.[18]

In 1994 it was discovered that 35 Aquilae is a variable star with a pulsation period of just 30 minutes.[28] It was determined to be a Delta Scuti variable, which is a type of star found on the instability strip that undergoes short period pulsations.[7] Observation with the Spitzer Space Telescope shows that 35 Aquilae is radiating an excess level of infrared radiation for a star of its type. This excess may be explained by the heating of nearby interstellar dust belonging to a diffuse cloud of material that the star is passing through. This interaction may also explain the Lambda Boötis categorization for this star.[12]

References

1. ^{{citation | display-authors=1 | last1=Martínez-Galarza | first1=J. R. | last2=Kamp | first2=I. | last3=Su | first3=K. Y. L. | last4=Gáspár | first4=A. | last5=Rieke | first5=G. | last6=Mamajek | first6=E. E. | title=Infrared Emission by Dust Around λ Bootis Stars: Debris Disks or Thermally Emitting Nebulae? | journal=The Astrophysical Journal | volume=694 | issue=1 | pages=165–173 | doi=10.1088/0004-637X/694/1/165 | bibcode=2009ApJ...694..165M | postscript=. |arxiv = 0812.2198 |date=March 2009}}
2. ^{{citation | last1=Koleva | first1=M. | last2=Vazdekis | first2=A. | title=Stellar population models in the UV. I. Characterisation of the New Generation Stellar Library | journal=Astronomy & Astrophysics | volume=538 | page=A143 | doi=10.1051/0004-6361/201118065 | bibcode=2012A&A...538A.143K | postscript=. |arxiv = 1111.5449 |date=February 2012}}
3. ^{{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 | doi=10.1086/110819 | bibcode=1969AJ.....74..375C | postscript=. |date=April 1969}}
4. ^{{citation | last=Evans | first=D. S. | date=June 20–24, 1966 | editor=Batten, Alan Henry | editor2=Heard, 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 | postscript=. }}
5. ^{{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 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785 | postscript=. |date=February 2007}}
6. ^{{citation | title=UBVRIJKL photometry of the bright stars | last1=Johnson | first1=H. L. | last2=Iriarte | first2=B. | last3=Mitchell | first3=R. I. | last4=Wisniewskj | first4=W. Z. | date=1966 | journal=Communications of the Lunar and Planetary Laboratory | volume=4 | pages=99–110 | bibcode=1966CoLPL...4...99J | postscript=. }}
7. ^{{cite simbad | title=35 Aql | accessdate=2012-07-21 | postscript=. }}
8. ^{{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=2012-07-21 |postscript=. |deadurl=yes |archiveurl=https://www.webcitation.org/6630AbtJZ?url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html |archivedate=March 10, 2012 }}
9. ^{{citation | display-authors=1 | last1=Martínez-Galarza | first1=J. R. | last2=Kamp | first2=I. | last3=Su | first3=K. Y. L. | last4=Gáspár | first4=A. | last5=Rieke | first5=G. | last6=Mamajek | first6=E. E. | title=Infrared Emission by Dust Around λ Bootis Stars: Debris Disks or Thermally Emitting Nebulae? | journal=The Astrophysical Journal | volume=694 | issue=1 | pages=165–173 | doi=10.1088/0004-637X/694/1/165 | bibcode=2009ApJ...694..165M | postscript=. |arxiv = 0812.2198 |date=March 2009}}
10. ^{{citation | last1=Kuschnig | first1=R. | last2=Paunzen | first2=E. | last3=Weiss | first3=W. W. | title=HD183324, A Pulsating lambda Boo Star? | work=Information Bulletin on Variable Stars | volume=4070 | page=1 | bibcode=1994IBVS.4070....1K | postscript=. |date=August 1994}}
11. ^{{citation | last1=Rodríguez | first1=E. | last2=Breger | first2=M. | title=delta Scuti and related stars: Analysis of the R00 Catalogue | journal=Astronomy and Astrophysics | volume=366 | pages=178–196 | doi=10.1051/0004-6361:20000205 | bibcode=2001A&A...366..178R | postscript=. |date=January 2001}}
[1][2][3][4][5][6][7][8][9][10][11]
}}

External links

  • HR 7400
  • Image 35 Aquilae
{{Stars of Aquila}}

9 : Bayer objects|Flamsteed objects|Objects with variable star designations|Henry Draper Catalogue objects|Delta Scuti variables|Aquila (constellation)|Hipparcos objects|HR objects|Durchmusterung objects

随便看

 

开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。

 

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间:2024/11/18 14:10:55