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| ra = {{RA|17|57|41.687}}<ref name="van Leeuwen2007"/>
| ra = {{RA|17|57|41.687}}<ref name="van Leeuwen2007"/>
| dec = {{DEC|−76|10|40.62}}<ref name="van Leeuwen2007"/>
| dec = {{DEC|−76|10|40.62}}<ref name="van Leeuwen2007"/>
| appmag_v = 6.072
| appmag_v = 6.07<ref name=clpl4_99/>
| constell = [[Apus]]
| constell = [[Apus]]
}}
}}
{{Starbox character
{{Starbox character
| class = K2III
| class = K2III<ref name=houk1979/>
| b-v = 1.2
| b-v = +1.20<ref name=clpl4_99/>
| u-b = 1.28
| u-b = +1.28<ref name=clpl4_99/>
| variable =
| variable =
}}
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v = 37
| radial_v = +36.8<ref name="Gontcharov"/>
| prop_mo_ra = 1.97 ± 0.28<ref name="van Leeuwen2007"/>
| prop_mo_ra = {{val|1.97|0.28}}<ref name="van Leeuwen2007"/>
| prop_mo_dec = −1.73 ± 0.27<ref name="van Leeuwen2007"/>
| prop_mo_dec = {{val|−1.73|0.27}}<ref name="van Leeuwen2007"/>
| parallax = 5.38
| parallax = 5.38
| p_error = 0.31
| p_error = 0.31
Line 24: Line 24:
| absmag_v = 7.296
| absmag_v = 7.296
}}
}}
<!--
{{Starbox detail
{{Starbox detail
| mass =
| mass =
| radius =
| radius =
| luminosity =
| luminosity = 185<ref name=Mcdonald_et_al_2012/>
| temperature =
| temperature = 4,498<ref name=Mcdonald_et_al_2012/>
| metal_fe =
| metal_fe =
| rotational_velocity =
| rotational_velocity =
| age_gyr =
| age_gyr =
}}
}}
-->
{{Starbox catalog
{{Starbox catalog
| names = [[Hipparcos#Published catalogues|HIP]] 87926, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 257542, [[Bright Star Catalogue|HR]] 6635, [[Durchmusterung|CD]]-76° 919.
| names = [[Durchmusterung|CD]]-76° 919, [[Henry Draper Catalogue|HD]] 161988, [[Hipparcos#Published catalogues|HIP]] 87926, [[Bright Star Catalogue|HR]] 6635, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 257542.
}}
}}
{{Starbox reference
{{Starbox reference
| Simbad = HD+161988
| Simbad = HD+161988
}}
{{Starbox reference
| Simbad = IDS+17435-7609
}}
}}
{{Starbox end}}
{{Starbox end}}


'''HD 161988''' is star in [[double star|double system]].
'''HD 161988''' is star in the southern [[constellation]] of [[Apus]].


==References==
==References==
{{reflist|refs=
{{reflist|refs=


<ref name="van Leeuwen2007">{{cite journal
<ref name="van Leeuwen2007">{{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/articles/aa/full/2007/41/aa8357-07/aa8357-07.html | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }}[http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=87635 Vizier catalog entry ]</ref>
| last1=van Leeuwen | first1=F.
| title=Validation of the new Hipparcos reduction
| journal=Astronomy and Astrophysics
| volume=474 | issue=2 | pages=653–664 | year=2007
| arxiv=0708.1752
| bibcode=2007A&A...474..653V
| doi=10.1051/0004-6361:20078357
}}[http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=87635 Vizier catalog entry ]</ref>

<ref name=houk1979>{{citation
| last1=Houk | first1=Nancy
| last2=Cowley | first2=A. P.
| title=Michigan catalogue of two-dimensional spectral types for the HD stars
| publication-place=Ann Arbor, Michigan
| publisher=Dept. of Astronomy, University of Michigan
| year=1979 | volume=1
| bibcode=1978mcts.book.....H
}}</ref>

<ref name="Gontcharov">{{cite doi|10.1134/S1063773706110065}}</ref>

<ref name=clpl4_99>{{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 | year=1966
| bibcode=1966CoLPL...4...99J
}}</ref>

<ref name=Mcdonald_et_al_2012>{{citation
| display-authors=1
| 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
}}</ref>


}}
}}


==External links==
* [http://aladin.u-strasbg.fr/AladinPreview?-c=HD+161988&ident=HD+161988&submit=Aladin+previewer Image HD 161988]
* [http://aladin.u-strasbg.fr/AladinPreview?-c=HD+161988&ident=HD+161988&submit=Aladin+previewer Image HD 161988]


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[[Category:Apus (constellation)]]
[[Category:Apus (constellation)]]
[[Category:Henry Draper Catalogue objects|161988]]
[[Category:Henry Draper Catalogue objects|161988]]
[[Category:Double stars]]
[[Category:K-type giants]]
[[Category:K-type giants]]
[[Category:HR objects|6635]]
[[Category:HR objects|6635]]



{{Multi-star-stub}}
{{Multi-star-stub}}

Revision as of 04:14, 21 July 2015

HD 161988
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 17h 57m 41.687s[1]
Declination −76° 10′ 40.62″[1]
Apparent magnitude (V) 6.07[2]
Characteristics
Spectral type K2III[3]
U−B color index +1.28[2]
B−V color index +1.20[2]
Astrometry
Radial velocity (Rv)+36.8[4] km/s
Proper motion (μ) RA: 1.97±0.28[1] mas/yr
Dec.: −1.73±0.27[1] mas/yr
Parallax (π)5.38 ± 0.31 mas[1]
Distance610 ± 30 ly
(190 ± 10 pc)
Absolute magnitude (MV)7.296
Details
Luminosity185[5] L☉
Temperature4,498[5] K
Other designations
CD-76° 919, HD 161988, HIP 87926, HR 6635, SAO 257542.
Database references
SIMBADdata

HD 161988 is star in the southern constellation of Apus.

References

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry
  2. ^ a b c Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), Bibcode:1966CoLPL...4...99J
  3. ^ Houk, Nancy; Cowley, A. P. (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H
  4. ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1134/S1063773706110065, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi=10.1134/S1063773706110065 instead.
  5. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x

External links

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