63 Ceti

{{short description|Star in the constellation of Cetus}}

{{Starbox begin

|name=63 Ceti}}

{{Starbox observe

|constell=Cetus

|epoch=J2000

|ra={{RA|02|11|35.83534}}{{Cite Gaia DR2|2494336311948357504}}

|dec={{DEC|-01|49|31.5355}}

|appmag_v=+5.93

}}

{{Starbox character

|class=K0III{{cite journal|bibcode=1999MSS...C05....0H|title=Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5|journal=Michigan Spectral Survey|volume=5|pages=0|author1=Houk, N.|author2=Swift, C.|year=1999}}

|b-v=+0.97{{cite journal|title=UBVRIJKL Photometry of the Bright Stars|author1=Johnson, H. L.|journal=Communications of the Lunar and Planetary Laboratory|volume=4|pages=99|date=1966|bibcode=1966CoLPL...4...99J}}

|u-b=+0.70

}}

{{Starbox astrometry

|radial_v={{Val|27.69|0.05}}

|prop_mo_ra=−11.526

|prop_mo_dec=−32.007

|parallax=8.4943

|p_error=0.0610

|parallax_footnote=

|absmag_v=0.57{{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=. }}

}}

{{Starbox detail

|source={{cite journal|doi=10.1051/0004-6361/201117887|title=Study of the impact of the post-MS evolution of the host star on the orbits of close-in planets|journal=Astronomy & Astrophysics|volume=536|pages=A71|year=2011|last1=Jones|first1=M. I.|last2=Jenkins|first2=J. S.|last3=Rojo|first3=P.|last4=Melo|first4=C. H. F.|arxiv = 1110.6459 |bibcode = 2011A&A...536A..71J |s2cid=55769003}}

|mass=1.85

|radius={{Val|11.08|0.33|0.54}}

|temperature=4940

|gravity=2.59

|metal_fe=−0.17 ± 0.06

|luminosity={{Val|63.7|0.6}}

|rotational_velocity=1.27

| age_myr = {{Val|990|50}}{{cite journal

| title=Fundamental properties of red-clump stars from long-baseline H-band interferometry

| last1=Gallenne | first1=A. | last2=Pietrzyński | first2=G.

| last3=Graczyk | first3=D. | last4=Nardetto | first4=N.

| last5=Mérand | first5=A. | last6=Kervella | first6=P.

| last7=Gieren | first7=W. | last8=Villanova | first8=S.

| last9=Mennickent | first9=R. E. | last10=Pilecki | first10=B.

| display-authors=1 | journal=Astronomy & Astrophysics

| volume=616 | id=A68 | pages=12 | date=August 2018

| arxiv=1806.09572 | bibcode=2018A&A...616A..68G

| doi=10.1051/0004-6361/201833341 | s2cid=119331707 }}

}}

{{Starbox catalog

|names=

63 Cet, BD−02°375, HD 13468, HIP 10234, HR 639, SAO 129739{{cite simbad|title=* 63 Cet|access-date=21 March 2017}}

}}

{{Starbox reference

|Simbad=63+Cet

}}

{{Starbox end}}

63 Ceti is a star in the constellation of Cetus, located just over a degree south of the celestial equator. With an apparent magnitude of about 5.9, the star is barely visible to the naked eye (see Bortle scale) as a dim, orange-hued point of light. Parallax estimates put it at a distance of about 390 light years (129 parsecs) away from the Earth, and it is drifting further away with a radial velocity of 28 km/s.

63 Ceti has a spectral type of K0III, implying an aging K-type giant star. These types of stars are generally reddish-colored stars with spectral types from K to M, with radii that are 10 to 100 times larger than the Sun.{{cite encyclopedia|url=http://www.daviddarling.info/encyclopedia/R/redgiant.html|title=Red giant|encyclopedia=The Internet Encyclopedia of Science|author=David Darling|access-date=21 March 2017}} 63 Ceti fits this description, with a radius about 11 times larger than the Sun, a mass of about 1.85 times the Sun, and an effective temperature of 4940 K. 63 Ceti is a red clump giant, indicating it is currently at the horizontal branch, a stage in stellar evolution, and is generating energy through core helium fusion. It is close to a billion years old and is radiating 64 times the luminosity of the Sun from its photosphere at an effective temperature of 4,940 K.