HD 211415: Difference between revisions

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m Robot - Removing category Objects within 100 ly of Earth per CFD at Wikipedia:Categories for discussion/Log/2015 March 8.
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{{Starbox begin
{{Starbox begin
| name=HD 211415 A/B }}
| name=HD 211415 A/B
}}
{{Starbox observe
{{Starbox observe
| epoch=J2000
| epoch=J2000
| ra={{RA|22|18|15.6152}}
| ra={{RA|22|18|15.61403}}<ref name=aa474_2_653/>
| dec={{DEC|–53|37|37.465}}
| dec={{DEC|–53|37|37.4640}}<ref name=aa474_2_653/>
| appmag_v=5.33
| appmag_v=5.33<ref name="MERMILLIOD"/>
| constell=[[Grus (constellation)|Grus]] }}
| constell=[[Grus (constellation)|Grus]]
}}
{{Starbox character
{{Starbox character
| class=G1-3 V/M V
| class=G0V<ref name=aj132_1_161/> + MV
| b-v=0.59
| b-v=+0.61<ref name="MERMILLIOD"/>
| u-b=0.06
| u-b=+0.06<ref name="MERMILLIOD"/>
| variable=None }}
| variable=
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v=-13.9
| radial_v={{nowrap|-12.68 ± 0.17}}<ref name=aaa521_A12/>
| prop_mo_ra=439.88
| prop_mo_ra=+438.75<ref name=aa474_2_653/>
| prop_mo_dec=–632.60
| prop_mo_dec=–632.46<ref name=aa474_2_653/>
| parallax=73.47
| parallax=72.54
| p_error=0.70
| p_error=0.36
| parallax_footnote = <ref name=aa474_2_653/>
| absmag_v=4.66 }}
| absmag_v=
}}
{{Starbox detail
{{Starbox detail
| component1=HD 211415 A
| mass=1.0/0.5
| mass={{nowrap|0.941 ± 0.016}}<ref name=aa_555_A150/>
| radius=0.96/0.56
| luminosity=1.09/0.018
| radius=0.96
| luminosity=1.09
| temperature=5,925(A)
| temperature={{nowrap|5864 ± 18}}<ref name=aa_555_A150/>
| metal=49-54%(A) Sun
| gravity={{nowrap|4.42 ± 0.03}}<ref name=aa_555_A150/>
| rotation=?
| age={{nowrap|(2.6–4.1) × 10<sup>9</sup>}}<ref name="apj687">{{cite journal
| metal_fe={{nowrap|–0.21 ± 0.01}}<ref name=aa_555_A150/>
| age_gyr=2.6–4.1<ref name="apj687"/>
| author=Mamajek, Eric E.; Hillenbrand, Lynne A.
| rotational_velocity=0.32<ref name=aaa520_A79/>
| title=Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
| component2=HD 211415 B
| journal=The Astrophysical Journal | volume=687 | issue=2
| mass2=0.5
| pages=1264–1293 |date=November 2008
| radius2=0.56
| doi=10.1086/591785 | bibcode=2008ApJ...687.1264M |arxiv = 0807.1686 }}</ref>
| luminosity2=0.018
}}
}}
{{Starbox catalog
{{Starbox catalog
| names=[[Gliese-Jahreiss catalogue|GJ]] 853 A, [[Harvard Revised catalogue|HR]] 8501, [[Cordoba Durchmusterung|CD]] -54&deg;9222, [[Henry Draper catalogue|HD]] 211415, [[Luyten Half-Second catalogue|LHS]] 3790, [[Luyten Two-Tenths catalogue|LTT]] 8943, [[General Catalogue of Trigonometric Parallaxes|GCTP]] 5395.00, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 247400,
| names=[[Cordoba Durchmusterung|CD]] -54&deg;9222, [[General Catalogue of Trigonometric Parallaxes|GCTP]] 5395.00, [[Gliese-Jahreiss catalogue|GJ]] 853 A, [[Henry Draper catalogue|HD]] 211415, [[Hipparcos catalogue|HIP]] 110109, [[Harvard Revised catalogue|HR]] 8501, [[Luyten Half-Second catalogue|LHS]] 3790, LFT 1702, [[Luyten Two-Tenths catalogue|LTT]] 8943, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 247400.<ref name=SIMBAD/>
}}
LFT 1702, [[Hipparcos catalogue|HIP]] 110109. }}
{{Starbox end}}
{{Starbox end}}
'''HD 211415''' is a [[binary star]] system in the [[constellation]] [[Grus (constellation)|Grus]]. It has a relatively high [[proper motion]] and is located about 44 [[light year]]s from the [[Sun]].
'''HD 211415''' is a [[binary star]] system in the [[constellation]] [[Grus (constellation)|Grus]]. It has a relatively high [[proper motion]] and is located about 44 [[light year]]s from the [[Sun]].
Line 42: Line 48:


==Possibility of planets and life==
==Possibility of planets and life==
HD 211415 was identified in September 2003 by astrobiologist [[Margaret Turnbull]] from the [[University of Arizona]] in [[Tucson]] as one of the most promising nearby candidates for hosting life based on her analysis of the [[HabCat]] list of stars.<ref>{{cite news | title=Astronomer Announces Shortlist Of Stellar Candidates For Habitable Worlds | publisher=Science Daily | date=2006-02-21 | url=http://www.sciencedaily.com/releases/2006/02/060221090638.htm | accessdate=2006-05-24 }}</ref>
HD 211415 was identified in September 2003 by astrobiologist [[Margaret Turnbull]] from the [[University of Arizona]] in [[Tucson]] as one of the most promising nearby candidates for hosting life based on her analysis of the [[HabCat]] list of stars.<ref name=habcat/>


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

<ref name=aa474_2_653>{{citation
| first1=F. | last1=van Leeuwen
| title=Validation of the new Hipparcos reduction
| journal=Astronomy and Astrophysics
| volume=474 | issue=2 | pages=653–664
| date=November 2007
| bibcode=2007A&A...474..653V
| doi=10.1051/0004-6361:20078357
| arxiv=0708.1752
| postscript=.
}}</ref>

<ref name="apj687">{{cite journal
| last1=Mamajek | first1=Eric E.
| last2=Hillenbrand | first2=Lynne A.
| title=Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
| journal=The Astrophysical Journal | volume=687 | issue=2
| pages=1264–1293 |date=November 2008
| doi=10.1086/591785 | bibcode=2008ApJ...687.1264M
| arxiv = 0807.1686
}}</ref>

<ref name=aj132_1_161>{{cite journal
| display-authors=1
| last1=Gray | first1=R. O.
| last2=Corbally | first2=C. J.
| last3=Garrison | first3=R. F.
| last4=McFadden | first4=M. T.
| last5=Bubar | first5=E. J.
| last6=McGahee | first6=C. E.
| last7=O'Donoghue | first7=A. A.
| last8=Knox | first8=E. R.
| title=Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample
| journal=[[The Astronomical Journal]]
| volume=132 | issue=1 | pages=161–70 | year=2006
| doi=10.1086/504637 | bibcode=2006AJ....132..161G | arxiv=astro-ph/0603770
}}</ref>

<ref name="SIMBAD">{{citation
| title=HD 45088 -- Variable of BY Dra type
| work=SIMBAD Astronomical Database
| publisher=Centre de Données astronomiques de Strasbourg
| url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=OU+Geminorum
| accessdate=2015-04-17
| postscript=.
}}</ref>

<ref name=habcat>{{cite news
| title=Astronomer Announces Shortlist Of Stellar Candidates For Habitable Worlds
| publisher=Science Daily | date=2006-02-21
| url=http://www.sciencedaily.com/releases/2006/02/060221090638.htm
| accessdate=2006-05-24
}}</ref>

<ref name=aaa521_A12>{{citation
| display-authors=1
| last1=Maldonado | first1=J.
| last2=Martínez-Arnáiz | first2=R. M.
| last3=Eiroa | first3=C.
| last4=Montes | first4=D.
| last5=Montesinos | first5=B.
| title=A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups
| date=October 2010 | journal=Astronomy and Astrophysics | volume=521 | page=A12
| doi=10.1051/0004-6361/201014948 | bibcode=2010A&A...521A..12M | arxiv = 1007.1132
}}</ref>

<ref name=aa_555_A150>{{citation
| display-authors=1
| last1=Tsantaki | first1=M.
| last2=Sousa | first2=S. G.
| last3=Adibekyan | first3=V. Zh.
| last4=Santos | first4=N. C.
| last5=Mortier | first5=A.
| last6=Israelian | first6=G.
| title=Deriving precise parameters for cool solar-type stars. Optimizing the iron line list
| journal=Astronomy & Astrophysics
| volume=555 | page=A150 | date=July 2013
| doi=10.1051/0004-6361/201321103
| bibcode=2013A&A...555A.150T
| arxiv=1304.6639
| postscript=.
}}</ref>

<ref name=aaa520_A79>{{cite journal
| display-authors=1
| last1=Martínez-Arnáiz | first1=R.
| last2=Maldonado | first2=J.
| last3=Montes | first3=D.
| last4=Eiroa | first4=C.
| last5=Montesinos | first5=B.
| title=Chromospheric activity and rotation of FGK stars in the solar vicinity. An estimation of the radial velocity jitter | journal=Astronomy and Astrophysics
| volume=520 | page=A79 |date=September 2010
| doi=10.1051/0004-6361/200913725 | bibcode=2010A&A...520A..79M | arxiv=1002.4391
}}</ref>

<ref name="MERMILLIOD">{{citation
| last=Mermilliod | first=J.-C.
| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)
| journal=Catalogue of Eggen's UBV data.
| year=1986 | publisher=SIMBAD
| bibcode=1986EgUBV........0M
| postscript=.
}}</ref>

}}


== External links ==
== External links ==

Revision as of 16:54, 17 April 2015

HD 211415 A/B
Observation data
Epoch J2000      Equinox J2000
Constellation Grus
Right ascension 22h 18m 15.61403s[1]
Declination –53° 37′ 37.4640″[1]
Apparent magnitude (V) 5.33[2]
Characteristics
Spectral type G0V[3] + MV
U−B color index +0.06[2]
B−V color index +0.61[2]
Astrometry
Radial velocity (Rv)-12.68 ± 0.17[4] km/s
Proper motion (μ) RA: +438.75[1] mas/yr
Dec.: –632.46[1] mas/yr
Parallax (π)72.54 ± 0.36 mas[1]
Distance45.0 ± 0.2 ly
(13.79 ± 0.07 pc)
Details
HD 211415 A
Mass0.941 ± 0.016[5] M☉
Radius0.96 R☉
Luminosity1.09 L☉
Surface gravity (log g)4.42 ± 0.03[5] cgs
Temperature5864 ± 18[5] K
Metallicity [Fe/H]–0.21 ± 0.01[5] dex
Rotational velocity (v sin i)0.32[6] km/s
Age2.6–4.1[7] Gyr
HD 211415 B
Mass0.5 M☉
Radius0.56 R☉
Luminosity0.018 L☉
Other designations
CD -54°9222, GCTP 5395.00, GJ 853 A, HD 211415, HIP 110109, HR 8501, LHS 3790, LFT 1702, LTT 8943, SAO 247400.[8]

HD 211415 is a binary star system in the constellation Grus. It has a relatively high proper motion and is located about 44 light years from the Sun.

These two stars have an orbit with a semi-major axis of 3.4″, which is approximately equal to 46 astronomical units (au). This is larger than the orbit of Pluto around our Sun, which has a semi-major axis of 39.5 au. This system has not been observed for a sufficient length of time to establish the remaining orbital parameters with sufficient precision.

Possibility of planets and life

HD 211415 was identified in September 2003 by astrobiologist Margaret Turnbull from the University of Arizona in Tucson as one of the most promising nearby candidates for hosting life based on her analysis of the HabCat list of stars.[9]

References

  1. ^ a b c d e van Leeuwen, F. (November 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.
  2. ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV data., SIMBAD, Bibcode:1986EgUBV........0M.
  3. ^ Gray, R. O.; et al. (2006). "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample". The Astronomical Journal. 132 (1): 161–70. arXiv:astro-ph/0603770. Bibcode:2006AJ....132..161G. doi:10.1086/504637.
  4. ^ Maldonado, J.; et al. (October 2010), "A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups", Astronomy and Astrophysics, 521: A12, arXiv:1007.1132, Bibcode:2010A&A...521A..12M, doi:10.1051/0004-6361/201014948
  5. ^ a b c d Tsantaki, M.; et al. (July 2013), "Deriving precise parameters for cool solar-type stars. Optimizing the iron line list", Astronomy & Astrophysics, 555: A150, arXiv:1304.6639, Bibcode:2013A&A...555A.150T, doi:10.1051/0004-6361/201321103.
  6. ^ Martínez-Arnáiz, R.; et al. (September 2010). "Chromospheric activity and rotation of FGK stars in the solar vicinity. An estimation of the radial velocity jitter". Astronomy and Astrophysics. 520: A79. arXiv:1002.4391. Bibcode:2010A&A...520A..79M. doi:10.1051/0004-6361/200913725.
  7. ^ Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics". The Astrophysical Journal. 687 (2): 1264–1293. arXiv:0807.1686. Bibcode:2008ApJ...687.1264M. doi:10.1086/591785.
  8. ^ "HD 45088 -- Variable of BY Dra type", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2015-04-17.
  9. ^ "Astronomer Announces Shortlist Of Stellar Candidates For Habitable Worlds". Science Daily. 2006-02-21. Retrieved 2006-05-24.

External links


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