View source for HD 32453

{{Short description|Star in the constellation Caelum}}
{{Starbox begin
 | name = [[Henry Draper Catalogue|HD]] 32453
}}
{{Starbox observe
 | constell = [[Caelum]]
 | epoch = [[J2000.0]]
 | equinox = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
 | ra = {{RA|05|01|34.5225}}<ref name = GaiaDR2/>
 | dec = {{DEC|-39|43|04.9641}}<ref name = GaiaDR2/>
 | appmag_v = {{val|6.01|0.01}}<ref name = Tycho2000/>
}}
{{Starbox character
 | class = G8 III<ref name = Houk1982/>
 | b-v = +0.88<ref name = Johnson1966/>
}}
{{Starbox astrometry
 | radial_v = {{val|5.73|0.12}}<ref name = GaiaDR2/>
 | parallax = 8.0168
 | p_error = 0.0344
 | parallax_footnote = <ref name = GaiaDR2/>
 | prop_mo_ra = −5.456<ref name = GaiaDR2/>
 | prop_mo_dec = +32.717<ref name = GaiaDR2/>
 | absmag_v = +0.78<ref name = Anderson2012/>
}}
{{Starbox detail
 | mass = 2.40<ref name = Dermarque2004/>
 | luminosity = 50.1<ref name = Luck2015/>
 | temperature = {{val|5,032|61|fmt=commas}}<ref name = Luck2015/>
 | age_myr = 700<ref name = Dermarque2004/>
 | radius = 10.03<ref name = Lang2006/><ref name = Stevens2017/>
 | gravity = {{val|3.18|0.14}}<ref name = Alves2015/>
 | metal_fe = {{val|−0.02|0.13}}<ref name = Alves2015/>
 | rotational_velocity = {{val|2|1.4}}<ref name = DeMed2014/>
}}
{{Starbox catalog
 | names = {{odlist|HD = 32453|CD = –39°1744|HIP = 23377|HR = 1631|SAO = 195501}}
 }}
{{Starbox reference
 | Simbad = HR+1631
}}
{{Starbox end}}

'''HD 32453 (HR 1631)''' is a solitary star located in the southern [[constellation]] [[Caelum]]. With an [[apparent magnitude]] of 6.01,<ref name = Tycho2000/> it's barely visible to the [[naked eye]] under ideal conditions. This star is located 407 [[light years]] away based on its [[parallax]] shift, but is drifting away at a rate of 5.73 km/s.<ref name = GaiaDR2/>

HD 32453 has a classification of G8 III,<ref name = Houk1982/> which states it is an evolved [[G-type star]] that exhausted [[hydrogen]] at its core and left the [[main sequence]]. At present it has 2.40<ref name = Dermarque2004/> times the [[Sun]]'s mass, but at an age of 700 [[million years]],<ref name = Dermarque2004/> HD 32453 has expanded to 10<ref name = Lang2006/> times the latter's girth (radius detected from an angular diameter of 0.748 mas<ref name = Stevens2017/>). It radiates at 50<ref name = Luck2015/> [[solar luminosities]] from its enlarged [[photosphere]] at an [[effective temperature]] of 5,032 [[Kelvin|K]],<ref name = Luck2015/> which gives it a yellow hue. HD 32453 is slightly metal deficient,<ref name = Alves2015/> and spins slowly with a [[projected rotational velocity]] of 2 km/s,<ref name = DeMed2014/> common for a [[giant star]].

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

<ref name = GaiaDR2>{{Cite DR2|4814189195245146496}}</ref>

<ref name = Tycho2000>{{cite journal |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |title=The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics |date=March 2000 |volume=355 |pages=L27–L30 |issn=0004-6361 |bibcode=2000A&A...355L..27H}}</ref>

<ref name = Houk1982>{{cite book |last1=Houk |first1=N. |title=Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0. |date=1 January 1982 |bibcode=1982mcts.book.....H}}</ref>

<ref name = Johnson1966>{{cite journal |last1=Johnson |first1=H. L. |last2=Mitchell |first2=R. I. |last3=Iriarte |first3=B. |last4=Wisniewski |first4=W. Z. |title=UBVRIJKL Photometry of the Bright Stars |journal=Communications of the Lunar and Planetary Laboratory |date=1 January 1966 |volume=4 |pages=99–110 |bibcode=1966CoLPL...4...99J}}</ref>

<ref name = Anderson2012>{{cite journal |last1=Anderson |first1=E. |last2=Francis |first2=Ch. |title=XHIP: An extended hipparcos compilation |journal=Astronomy Letters |date=May 2012 |volume=38 |issue=5 |pages=331–346 |doi=10.1134/S1063773712050015 |language=en |issn=1063-7737 |bibcode=2012AstL...38..331A |arxiv=1108.4971|s2cid=255204555 }}</ref>

<ref name = Dermarque2004>{{cite journal |last1=Demarque |first1=Pierre |last2=Woo |first2=Jong-Hak |last3=Kim |first3=Yong-Cheol |last4=Yi |first4=Sukyoung K. |title=Y 2 Isochrones with an Improved Core Overshoot Treatment |journal=The Astrophysical Journal Supplement Series |date=December 2004 |volume=155 |issue=2 |pages=667–674 |doi=10.1086/424966 |issn=1538-4357 |bibcode=2004ApJS..155..667D |doi-access=free|arxiv=astro-ph/0409024 }}</ref>

<ref name = Luck2015>{{cite journal |last1=Luck |first1=R. Earle |title=Abundances in the Local Region. I. G and K Giants |journal=The Astronomical Journal |date=25 August 2015 |volume=150 |issue=3 |pages=88 |doi=10.1088/0004-6256/150/3/88 |issn=1538-3881 |bibcode=2015AJ....150...88L |arxiv=1507.01466 |doi-access=free}}</ref>

<ref name = Lang2006>{{citation | first1=Kenneth R. | last1=Lang | title=Astrophysical formulae | volume=1 | series=Astronomy and astrophysics library | edition=3 | publisher=[[Birkhäuser]] | year=2006 | isbn=3-540-29692-1 | url=https://books.google.com/books?id=OvTjLcQ4MCQC&pg=PA41 }}. The radius (R<sub>*</sub>) is given by:
:<math>\begin{align} 2\cdot R_*
 & = \frac{(124.7\cdot 0.748\cdot 10^{-3})\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \\
 & \approx 20.06\cdot R_{\bigodot}
\end{align}</math></ref>

<ref name = Alves2015>{{cite journal |last1=Alves |first1=S. |last2=Benamati |first2=L. |last3=Santos |first3=N. C. |last4=Adibekyan |first4=V. Zh. |last5=Sousa |first5=S. G. |last6=Israelian |first6=G. |last7=De Medeiros |first7=J. R. |last8=Lovis |first8=C. |last9=Udry |first9=S. |title=Determination of the spectroscopic stellar parameters for 257 field giant stars★ |journal=Monthly Notices of the Royal Astronomical Society |date=11 April 2015 |volume=448 |issue=3 |pages=2749–2765 |doi=10.1093/mnras/stv189 |issn=1365-2966 |bibcode=2015MNRAS.448.2749A |arxiv=1503.02556 |doi-access=free}}</ref>

<ref name = DeMed2014>{{cite journal |last1=De Medeiros |first1=J. R. |last2=Alves |first2=S. |last3=Udry |first3=S. |last4=Andersen |first4=J. |last5=Nordström |first5=B. |last6=Mayor |first6=M. |title=A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆ |journal=Astronomy & Astrophysics |date=January 2014 |volume=561 |pages=A126 |doi=10.1051/0004-6361/201220762 |issn=1432-0746 |bibcode=2014A&A...561A.126D |arxiv=1312.3474 |doi-access=free}}</ref>

<ref name = Stevens2017>{{cite journal |last1=Stevens |first1=Daniel J. |last2=Stassun |first2=Keivan G. |last3=Gaudi |first3=B. Scott |title=Empirical Bolometric Fluxes and Angular Diameters of 1.6 Million Tycho-2 Stars and Radii of 350,000 Stars with Gaia DR1 Parallaxes |journal=The Astronomical Journal |date=1 December 2017 |volume=154 |issue=6 |pages=259 |doi=10.3847/1538-3881/aa957b |arxiv=1708.05025 |bibcode=2017AJ....154..259S|s2cid=119191064 |issn=0004-6256 |doi-access=free}}</ref>

}}
{{Caelum}}

[[Category:G-type giants]]
[[Category:Caelum]]
[[Category:Durchmusterung objects]]
[[Category:Gould objects|Caeli, 25]]
[[Category:Henry Draper Catalogue objects|032453]]
[[Category:Bright Star Catalogue objects|1631]]
[[Category:Hipparcos objects|023377]]