Delta Sextantis: Difference between revisions

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imported>Lithopsian
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imported>21.Andromedae
 
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{{Starbox detail
{{Starbox detail
  | mass = 2.58<ref name="David2015" />
  | mass = {{Val|2.6|0.3}}<ref name=tic/>
  | radius = 2.3<ref name="PasinettiFracassini2001" />
  | radius = {{Val|3.25|0.12}}<ref name=tic/>
  | luminosity = 82<ref name="Mcdonald2012" />
  | luminosity = {{Val|100|7}}<ref name=tic/>
  | temperature = {{Val|10899|371|fmt=commas}}<ref name="David2015" />
  | temperature = {{Val|10139|131|fmt=commas}}<ref name=tic/>
  | gravity = {{Val|3.99|0.14}}<ref name="David2015" />
  | gravity = {{Val|3.83|0.07}}<ref name=tic/>
  | metal_fe = −0.51<ref name="Hempel2003" />
  | metal_fe = −0.51<ref name="Hempel2003" />
  | rotational_velocity = 152<ref name="Royer2007" />
  | rotational_velocity = 152<ref name="Royer2007" />
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'''Delta Sextantis''' (δ Sex, δ Sextantis) is a solitary<ref name="Eggleton2008" /> [[star]] in the equatorial [[constellation]] of [[Sextans]]. With an annual [[stellar parallax|parallax shift]] of 10.13&nbsp;[[milliarcsecond|mas]],<ref name="vanLeeuwen2007" /> it lies at a distance of around 322&nbsp;[[light year]]s from the [[Sun]]. This star is faintly visible to the naked eye, having an [[apparent visual magnitude]] of +5.25.<ref name="Mermilliod1986" /> According to the [[Bortle scale]], that means it can be viewed from dark suburban skies.
'''Delta Sextantis''' (δ Sex, δ Sextantis) is a solitary<ref name="Eggleton2008" /> [[star]] in the equatorial [[constellation]] of [[Sextans]]. With an annual [[stellar parallax|parallax shift]] of 10.13&nbsp;[[milliarcsecond|mas]],<ref name="vanLeeuwen2007" /> it lies at a distance of around 322&nbsp;[[light year]]s from the [[Sun]]. This star is faintly visible to the naked eye, having an [[apparent visual magnitude]] of +5.25.<ref name="Mermilliod1986" /> According to the [[Bortle scale]], that means it can be viewed from dark suburban skies.


This is a [[B-type main sequence star]] with a [[stellar classification]] of B9.5&nbsp;V;<ref name="Hempel2003" /> just shy of being a cooler [[A-type star]]. It is estimated to have 2.6<ref name="David2015" /> times the [[solar mass|Sun's mass]] and 2.3<ref name="PasinettiFracassini2001" /> times the [[solar radius|radius of the Sun]]. It is 146<ref name="David2015" /> million years old, with a [[projected rotational velocity]] of 152<ref name="Royer2007" />&nbsp;km/s. The star radiates 82<ref name="Mcdonald2012" /> times the [[solar luminosity]] from its [[stellar atmosphere|outer atmosphere]] at an [[effective temperature]] of 10,899&nbsp;K.<ref name="David2015" />
This is a [[B-type main sequence star]] with a [[stellar classification]] of B9.5&nbsp;V;<ref name="Hempel2003" /> just shy of being a cooler [[A-type star]]. It is estimated to have 2.6 times the [[solar mass|Sun's mass]] and 3.25 times the [[solar radius|radius of the Sun]]. It is 146<ref name="David2015" /> million years old, with a [[projected rotational velocity]] of 152<ref name="Royer2007" />&nbsp;km/s. The star radiates 100 times the [[solar luminosity]] from its [[stellar atmosphere|outer atmosphere]] at an [[effective temperature]] of 10,139&nbsp;K.<ref name=tic/>


==References==
==References==
{{reflist|refs=
{{reflist|refs=
<ref name="vanLeeuwen2007">{{citation | title=Validation of the new Hipparcos reduction | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=.}}</ref>
<ref name="vanLeeuwen2007">{{citation | title=Validation of the new Hipparcos reduction | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=.}}</ref>
<ref name="PasinettiFracassini2001">{{citation | 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 | display-authors=1 | volume=367 | pages=521–524 | date=February 2001 | issue=2 | doi=10.1051/0004-6361:20000451 | bibcode=2001A&A...367..521P | arxiv=astro-ph/0012289 | s2cid=425754 | postscript=.}}</ref>
 
<ref name="Hempel2003">{{citation | title=Abundance analysis of late B stars. Evidence for diffusion and against weak stellar winds | last1=Hempel | first1=M. | last2=Holweger | first2=H. | journal=Astronomy and Astrophysics | postscript=. | volume=408 | pages=1065–1076 | date=September 2003 | issue=3 | doi=10.1051/0004-6361:20030889 | bibcode=2003A&A...408.1065H | doi-access=free}}</ref>
<ref name="Hempel2003">{{citation | title=Abundance analysis of late B stars. Evidence for diffusion and against weak stellar winds | last1=Hempel | first1=M. | last2=Holweger | first2=H. | journal=Astronomy and Astrophysics | postscript=. | volume=408 | pages=1065–1076 | date=September 2003 | issue=3 | doi=10.1051/0004-6361:20030889 | bibcode=2003A&A...408.1065H | doi-access=free}}</ref>
<ref name="Eggleton2008">{{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E | display-authors=1 | arxiv=0806.2878 | s2cid=14878976 | postscript=.}}</ref>
<ref name="Eggleton2008">{{citation | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A. | title=A catalogue of multiplicity among bright stellar systems | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E | display-authors=1 | arxiv=0806.2878 | s2cid=14878976 | postscript=.}}</ref>
<ref name="Mcdonald2012">{{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 | doi-access=free | s2cid=118665352 | postscript=.}}</ref>
 
<ref name="David2015">{{citation | last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A. | title=The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets | journal=The Astrophysical Journal | volume=804 | issue=2 | pages=146 | year=2015 | bibcode=2015ApJ...804..146D | doi=10.1088/0004-637X/804/2/146 | arxiv=1501.03154 | s2cid=33401607 | postscript=.}}</ref>
<ref name="David2015">{{citation | last1=David | first1=Trevor J. | last2=Hillenbrand | first2=Lynne A. | title=The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets | journal=The Astrophysical Journal | volume=804 | issue=2 | pages=146 | year=2015 | bibcode=2015ApJ...804..146D | doi=10.1088/0004-637X/804/2/146 | arxiv=1501.03154 | s2cid=33401607 | postscript=.}}</ref>
<ref name="Becker2015">{{citation | title=Extracting Radial Velocities of A- and B-type Stars from Echelle Spectrograph Calibration Spectra | last1=Becker | first1=Juliette C. | last2=Johnson | first2=John Asher | last3=Vanderburg | first3=Andrew | last4=Morton | first4=Timothy D. | journal=The Astrophysical Journal Supplement Series | volume=217 | issue=2 | id=29 | pages=13 | date=April 2015 | doi=10.1088/0067-0049/217/2/29 | bibcode=2015ApJS..217...29B | arxiv=1503.03874 | s2cid=33968873 | display-authors=1 | postscript=.}}</ref>
<ref name="Becker2015">{{citation | title=Extracting Radial Velocities of A- and B-type Stars from Echelle Spectrograph Calibration Spectra | last1=Becker | first1=Juliette C. | last2=Johnson | first2=John Asher | last3=Vanderburg | first3=Andrew | last4=Morton | first4=Timothy D. | journal=The Astrophysical Journal Supplement Series | volume=217 | issue=2 | id=29 | pages=13 | date=April 2015 | doi=10.1088/0067-0049/217/2/29 | bibcode=2015ApJS..217...29B | arxiv=1503.03874 | s2cid=33968873 | display-authors=1 | postscript=.}}</ref>
<ref name=tic>{{Citation |last1=Stassun |first1=Keivan G. |last2=Oelkers |first2=Ryan J. |last3=Paegert |first3=Martin |last4=Torres |first4=Guillermo |last5=Pepper |first5=Joshua |last6=De Lee |first6=Nathan |last7=Collins |first7=Kevin |last8=Latham |first8=David W. |last9=Muirhead |first9=Philip S. |last10=Chittidi |first10=Jay |last11=Rojas-Ayala |first11=Bárbara |last12=Fleming |first12=Scott W. |last13=Rose |first13=Mark E. |last14=Tenenbaum |first14=Peter |last15=Ting |first15=Eric B. |date=2019-10-01 |title=The Revised TESS Input Catalog and Candidate Target List |journal=The Astronomical Journal |volume=158 |issue=4 |pages=138 |doi=10.3847/1538-3881/ab3467 |doi-access=free |arxiv=1905.10694 |bibcode=2019AJ....158..138S |issn=0004-6256 | postscript=. }} [http://vizier.nao.ac.jp//viz-bin/VizieR?-source=IV/38&TIC=7999997 Delta Sextantis' database entry] at [[VizieR]].</ref>
<ref name="Royer2007">{{citation | display-authors=1 | 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 | date=February 2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785 | s2cid=18475298 | postscript=.}}</ref>
<ref name="Royer2007">{{citation | display-authors=1 | 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 | date=February 2007 | doi=10.1051/0004-6361:20065224 | bibcode=2007A&A...463..671R | arxiv=astro-ph/0610785 | s2cid=18475298 | postscript=.}}</ref>
<ref name="Mermilliod1986">{{citation | last1=Mermilliod | first1=J.-C. | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) | journal=SIMBAD | date=1986 | bibcode=1986EgUBV........0M | postscript=.}}</ref>
<ref name="Mermilliod1986">{{citation | last1=Mermilliod | first1=J.-C. | title=Compilation of Eggen's UBV data, transformed to UBV (unpublished) | journal=SIMBAD | date=1986 | bibcode=1986EgUBV........0M | postscript=.}}</ref>
<ref name="Anderson2012">{{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 | s2cid=119257644 | postscript=.}}</ref>
<ref name="Anderson2012">{{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 | s2cid=119257644 | postscript=.}}</ref>
<ref name="SIMBAD">{{cite simbad | title=del Sex | accessdate=2016-12-14 | postscript=.}}</ref>
<ref name="SIMBAD">{{cite simbad | title=del Sex | accessdate=2016-12-14 | postscript=.}}</ref>
}}
}}


Latest revision as of 00:19, 29 June 2025

Template:Short description

δ Sextantis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sextans
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) +5.25[2]
Characteristics
Spectral type B9.5 V[3]
U−B Template:Engvar −0.12[2]
B−V Template:Engvar −0.04[2]
Astrometry
Radial velocity (Rv)Template:Val[4] km/s
Proper motion (μ) RA: −48.86[1] mas/yr
Dec.: −13.43[1] mas/yr
Parallax (π)10.13±0.23 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)+0.22[5]
Details
MassTemplate:Val[6] Template:Solar mass
RadiusTemplate:Val[6] Template:Solar radius
LuminosityTemplate:Val[6] Template:Solar luminosity
Surface gravity (log g)Template:Val[6] cgs
TemperatureTemplate:Val[6] K
Metallicity [Fe/H]−0.51[3] dex
Rotational velocity (v sin i)152[7] km/s
Age146[8] Myr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[9]
Database references
SIMBADdata

Script error: No such module "Check for unknown parameters".

Delta Sextantis (δ Sex, δ Sextantis) is a solitary[10] star in the equatorial constellation of Sextans. With an annual parallax shift of 10.13 mas,[1] it lies at a distance of around 322 light years from the Sun. This star is faintly visible to the naked eye, having an apparent visual magnitude of +5.25.[2] According to the Bortle scale, that means it can be viewed from dark suburban skies.

This is a B-type main sequence star with a stellar classification of B9.5 V;[3] just shy of being a cooler A-type star. It is estimated to have 2.6 times the Sun's mass and 3.25 times the radius of the Sun. It is 146[8] million years old, with a projected rotational velocity of 152[7] km/s. The star radiates 100 times the solar luminosity from its outer atmosphere at an effective temperature of 10,139 K.[6]

References

Template:Reflist

Template:Stars of Sextans

  1. ↑ a b c d e f Cite error: Invalid <ref> tag; no text was provided for refs named vanLeeuwen2007
  2. ↑ a b c d Cite error: Invalid <ref> tag; no text was provided for refs named Mermilliod1986
  3. ↑ a b c Cite error: Invalid <ref> tag; no text was provided for refs named Hempel2003
  4. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Becker2015
  5. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Anderson2012
  6. ↑ a b c d e f Cite error: Invalid <ref> tag; no text was provided for refs named tic
  7. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named Royer2007
  8. ↑ a b Cite error: Invalid <ref> tag; no text was provided for refs named David2015
  9. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named SIMBAD
  10. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named Eggleton2008
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