Login
Login

HD 20367

{{Short description|Star in the constellation Aries}}

{{Starbox begin}}

{{Starbox observe

| epoch = J2000.0

| equinox = J2000.0 (ICRS)

| constell = Aries

| ra = {{RA|03|17|40.04683}}

| dec = {{DEC|+31|07|37.3604}}

| appmag_v = 6.40

}}

{{Starbox character

| type =

| class = F8V

| b-v = 0.574

| variable =

}}

{{Starbox astrometry

| radial_v = {{val|6.47|0.15}}

| prop_mo_ra = {{val|-101.950|0.031}}

| prop_mo_dec = {{val|-58.033|0.028}}

| pm_footnote =

| parallax = 38.3758

| p_error = 0.0318

| parallax_footnote =

| absmag_v = 4.27

}}

{{Starbox detail

| mass = {{Val|1.13|0.10}}

| radius = {{Val|1.12|0.03|0.01}}

| metal_fe = {{Val|0.17|0.10}}

| gravity = {{Val|4.53|0.22}}

| age_gyr = 2.98

| luminosity = {{Val|1.576|0.004}}

| temperature = {{Val|6100|36|60|fmt=commas}}

| rotational_velocity = 5.5

}}

{{Starbox catalog

| names= {{odlist | BD=+30°520 | HD=20367 | HIP=15323 | SAO=56323 | GC=3929 }}

}}

{{Starbox reference

| Simbad = HD+20367

| NSTED = HD 20367

| EPE = HD+20367

}}

{{Starbox end}}

HD 20367 is a star in the constellation of Aries, close to the border with the Perseus constellation. It is a yellow-white hued star that is a challenge to view with the naked eye, having an apparent visual magnitude of 6.40. Based upon parallax measurements, it is located 85 light years from the Sun. It is drifting further away with a radial velocity of +6.5 km/s. Based upon its movement through space, it is a candidate member of the Ursa Major Moving Group of co-moving stars that probably share a common origin.

This object is a late F-type main-sequence star with a stellar classification of F8V. It is about three billion years old and is spinning with a projected rotational velocity of 5.5 km/s. The star is 12% larger and 13% more massive than the Sun. It is radiating 1.58 times the luminosity of the Sun from its photosphere at an effective temperature of 6,100 K.

__NOTOC__

Claims of a planetary system

In June 2002, an announcement was made that a Jupiter-mass or larger extrasolar planet had been found orbiting the star, with a period of {{Convert|469.5|days|years|disp=out|abbr=off}} and an eccentricity of 0.32. The eccentric nature of this planet's orbit meant that it spends part of each circuit around the star outside the habitable zone. However, subsequent observations in 2009 put the existence of this planet in doubt.

{{OrbitboxPlanet begin

| table_ref =

}}

{{OrbitboxPlanet hypothetical

| exoplanet = b

| mass = >1.17

| period = {{Val|469.5|9.3}}

| semimajor = {{Val|1.246|0.075}}

| eccentricity = {{Val|0.320|0.090}}

}}

{{Orbitbox end}}

See also

References

{{reflist|refs=

{{Cite simbad | title=HD 20367 | access-date=2019-12-22 }}

{{Cite Gaia DR2|122704230645584768}}

{{Cite Gaia DR3|122704230645584768}}

{{cite XHIP|15323|mode=cs2|postscript=. }}

{{citation

| title=Abundances in the Local Region II: F, G, and K Dwarfs and Subgiants

| last1=Luck | first1=R. Earle

| journal=The Astronomical Journal

| volume=153 | issue=1 | id=21 | pages=19 | date=January 2017

| bibcode=2017AJ....153...21L | arxiv=1611.02897

| doi=10.3847/1538-3881/153/1/21 | s2cid=119511744 | postscript=. | doi-access=free }}

{{citation

| title=Spectral Classification of Stars in A Supplement to the Bright Star Catalogue

| last1=Abt | first1=Helmut A.

| journal=The Astrophysical Journal Supplement Series

| volume=155 | issue=1 | pages=175–177 | date=November 2004

| doi=10.1086/423803 | bibcode=2004ApJS..155..175A | doi-access=free }}

{{citation | postscript=.

| title=Secondary resonances of co-orbital motions

| display-authors=1 | last1=Érdi | first1=B.

| last2=Nagy | first2=I. | last3=Sándor | first3=Zs.

| last4=Süli | first4=Á. | last5=Fröhlich | first5=G.

| journal=Monthly Notices of the Royal Astronomical Society

| volume=381 | issue=1 | pages=33–40 | date=October 2007

| arxiv=0707.4650 | bibcode=2007MNRAS.381...33E

| doi=10.1111/j.1365-2966.2007.12228.x | doi-access=free

| s2cid=9742852

}}

{{citation

| title=A Search for Multi-Planet Systems Using the Hobby-Eberly Telescope

| display-authors=1 | last1=Wittenmyer | first1=Robert A.

| last2=Endl | first2=Michael | last3=Cochran | first3=William D.

| last4=Levison | first4=Harold F. | last5=Henry | first5=Gregory W.

| journal=The Astrophysical Journal Supplement

| volume=182 | issue=1 | pages=97–119 | date=May 2009

| doi=10.1088/0067-0049/182/1/97 | arxiv=0903.0652

| bibcode=2009ApJS..182...97W | s2cid=7422668 | postscript=. }}

{{citation

| title=Chemical tagging of the Ursa Major moving group. A northern selection of FGK stars

| last1=Tabernero | first1=H. M. | last2=Montes | first2=D.

| last3=González Hernández | first3=J. I. | last4=Ammler-von Eiff | first4=M.

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

| volume=597 | id=A33 | pages=25 | date=January 2017

| doi=10.1051/0004-6361/201322526 | arxiv=1409.2348

| bibcode=2017A&A...597A..33T | s2cid=54819621 | postscript=. }}

{{citation

| display-authors=1 | last1=Santos | first1=N. C.

| last2=Sousa | first2=S. G. | last3=Mortier | first3=A.

| last4=Neves | first4=V. | last5=Adibekyan | first5=V.

| last6=Tsantaki | first6=M. | last7=Delgado Mena | first7=E.

| last8=Bonfils | first8=X. | last9=Israelian | first9=G.

| last10=Mayor | first10=M. | last11=Udry | first11=S.

| title=SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs. I. New atmospheric parameters and masses for 48 stars with planets

| journal=Astronomy & Astrophysics

| volume=556 | id=A150 | pages=11 | date=August 2013

| doi=10.1051/0004-6361/201321286 | postscript=.

| bibcode=2013A&A...556A.150S | arxiv=1307.0354 | s2cid=55237847 }}

[http://obswww.unige.ch/~udry/planet/hd20367.html A 1.1 Jupiter-mass planet orbiting HD 20367], Geneva Observatory, October 7, 2002. Accessed on line October 1, 2008.

Table 3, Catalog of Nearby Exoplanets, R. P. Butler et al., The Astrophysical Journal 646, #1 (July 2006), pp. 505–522, {{bibcode|2006ApJ...646..505B}}, {{doi|10.1086/504701}}.

}}

External links

  • {{cite web|url=http://jumk.de/astronomie/exoplanets/hd-20367.shtml |title=HD 20367 |work=Stars with exoplanets}}
  • [http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HIP%2015323 HIP 15323] Catalog
  • [http://aladin.u-strasbg.fr/AladinPreview?-c=03+17+40.0461%2B31+07+37.372&ident=HD++20367&submit=Aladin+previewer Image HD 20367]
  • [https://web.archive.org/web/20060930055515/http://planetquest1.jpl.nasa.gov/atlas/atlas_skymap.cfm?Star=175 Sky map]

{{Sky|03|17|40.0461|+|31|07|37.372|88}}

{{Stars of Aries}}

{{DEFAULTSORT:HD 20367}}

Category:F-type main-sequence stars

Category:Hypothetical planetary systems

Category:Aries (constellation)

BD+30 0520

020367

015323