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词条 7 Aquilae
释义

  1. References

{{Starbox begin
| name = 7 Aquilae
}}{{Starbox observe
| epoch = J2000
| ra = {{RA|18|51|05.41169}}
| dec = {{DEC|-03|15|40.01079}}
| appmag_v = 6.894[1]
| constell = Aquila
}}{{Starbox character
| class = F0V[1]
| r-i =
| v-r =
| b-v = +0.285[5]
| u-b =
| variable = δ Sct[5]
}}{{Starbox astrometry
| radial_v = –29[7]
| prop_mo_ra = –47.13
| prop_mo_dec = –59.85
| parallax = 8.87
| p_error = 0.45
| parallax_footnote =
| dist_pc = 136[1]
| absmag_v = 1.22[1]
}}{{Starbox detail
| mass = 2.05[1][5]
| radius =
| luminosity = 24[5]
| temperature = 7,257[1]
| metal_fe = 0.01[1]
| gravity = 3.62[1]
| rotational_velocity = 32[5]
| age_gyr =
}}{{Starbox catalog
| names = BD–03°4390, HD 174532, HIP 92501, SAO 142696
}}{{Starbox reference
| Simbad = 7+Aquilae
}}{{Starbox end}}

7 Aquilae (abbreviated 7 Aql) is a star in the equatorial constellation of Aquila. 7 Aquilae is the Flamsteed designation. Its apparent magnitude is 6.9 and it is at a distance of about {{Convert|136|pc|ly|abbr=off|lk=on}} from Earth. This is a pulsating variable star of the Delta Scuti type.

References

1. ^{{cite journal|bibcode=2010NewA...15..397F|arxiv=0912.2808|title=Strömgren photometry and spectroscopy of the δ Scuti stars 7 Aql and 8 Aql|journal=New Astronomy|volume=15|issue=5|pages=397|author1=Fox Machado|first1=L.|last2=Alvarez|first2=M.|last3=Michel|first3=R.|last4=Moya|first4=A.|last5=Peña|first5=J. H.|last6=Parrao|first6=L.|last7=Castro|first7=A.|year=2010|doi=10.1016/j.newast.2009.11.006}}
2. ^{{citation | display-authors=1 | last1=Fox Machado | first1=L. | last2=Michel | first2=E. | last3=Pérez Hernández | first3=F. | last4=Peña | first4=J. H. | last5=Li | first5=Z. P. | last6=Chevreton | first6=M. | last7=Belmonte | first7=J. A. | last8=Álvarez | first8=M. | last9=Parrao | first9=L. | last10=Dupret | first10=M.-A. | last11=Pau | first11=S. | last12=Fernandez | first12=A. | last13=Michel | first13=J. P. | last14=Michel | first14=R. | last15=Pani | first15=A. | title=Multisite Observations of δ Scuti Stars 7 Aql and 8 Aql (a New δ Scuti Variable): The Twelfth STEPHI Campaign in 2003 | journal=The Astronomical Journal | volume=134 | issue=2 | pages=860–866 |date=August 2007 | doi=10.1086/520062 | bibcode=2007AJ....134..860F | postscript=. |arxiv = 0706.0576 }}
3. ^{{citation | last=Wilson | first=Ralph Elmer | year=1953 | title=General Catalogue of Stellar Radial Velocities | journal=Washington | publisher=Carnegie Institution of Washington | location=Washington | bibcode=1953GCRV..C......0W | postscript=. }}
[2][3]
}}{{Stars of Aquila}}{{var-star-stub}}

7 : Aquila (constellation)|F-type main-sequence stars|Flamsteed objects|Delta Scuti variables|Henry Draper Catalogue objects|Hipparcos objects|Durchmusterung objects

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