View source for Gliese 205

{{Short description|Nearby red dwarf star in the constellation Orion}}
{{Sky|05|31|27.39578|-|03|40|38.0240|18.604}}
{{Starbox begin}}
{{Starbox image
|image={{Location map|100x100|AlternativeMap=Orion_constellation_map.svg
|alt=Gliese 205 is located in the constellation Orion
|caption=Location of Gliese 205 in the constellation [[Orion (constellation)|Orion]]|border=infobox|mark=Red_pog.png|width=320
|label=Gliese 205
|lat=39.8
|long=62.9
}}|caption=
}}
{{Starbox observe
|epoch=[[J2000]]
|equinox=[[J2000]]
|constell=[[Orion (constellation)|Orion]]
|ra={{RA|05|31|27.39578}}<ref name=dr3/>
|dec={{DEC|−03|40|38.0240}}<ref name=dr3/>
|appmag_v=7.932<ref name=mann/>
}}
{{Starbox character
|type=[[Red dwarf]]
|class=M1.5V{{r|Jenkins2006}}
}}
{{Starbox astrometry
|radial_v=8.26<ref name=dr3/>
|prop_mo_ra=761.631
|prop_mo_dec=−2092.209
|pm_footnote=<ref name=dr3/>
|parallax=175.3131
|p_error=0.0204
|parallax_footnote=<ref name=dr3/>
|absmag_v=9.188<ref name=houdebine2019/>
}}
{{Starbox detail
 | source      = <ref name="Cortes-Zuleta2023"/>
 | mass        = {{val|0.549|0.029}}
 | radius      = {{val|0.556|0.033}}
 | luminosity  = {{val|0.061|0.006}}
 | gravity     = {{val|4.70|0.1}}
 | temperature = {{val|3770|30|fmt=commas}}
 | metal_fe    = {{val|+0.21|0.06}}
 | rotation    = {{val|34.4|0.5|u=d}}
 | rotational_velocity = {{val|0.7|0.1}}
 | age_gyr     = {{val|3.6|5.0|1.7}}
}}
{{Starbox catalog|names=
{{Odlist
|name=[[Bonner Durchmusterung|BD]]−03°1123,<ref name="Schönfeld SD"/> GJ 205,<ref name="Gliese1991"/> [[Henry Draper catalogue|HD]] 36395,<ref name="Cannon HD"/> [[Hipparcos catalogue|HIP]] 25878,<ref name="van Leeuwen2007"/> LHS 30,<ref name="Luyten1979 LHS"/> [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 132211,<ref name="SAO"/> Wolf 1453,{{r|Wolf1924}} W. B. V. 592{{r|Comstock1897|Bessel1846}}, Weisse I, 5<sup>h</sup> 592, {{r|Schlesinger1911a|Schlesinger1911b|Bessel1846}} Strb. 1611{{r|Kirkpatrick2012|van de Kamp1930}}, Cin. 705{{r|Adams1926}}, Ci 20=334{{r|Porter1930}}, G 99-15, LFT 416, LTT 2293,  NLTT 15215<ref name="Luyten1979 NLTT"/> PLX 1255,<ref name="van Altena1995"/>  TYC 4770-574-1,<ref name="Perryman1997_tyc"/> 2MASS J05312734-0340356
}}}}
{{Starbox reference
|Simbad=TYC+4770-574-1
}}
{{Starbox end}}
'''Gliese 205''' is a nearby [[red dwarf]] star of [[spectral type]] M1.5, located in the constellation [[Orion (constellation)|Orion]] at a distance of {{convert|18.6|ly|pc|lk=on|abbr=off}} from Earth.<ref name=dr3/>

==History of observations==
A designation of this star, used in "Discovery Name" column of Table 4 of ''Kirkpatrick et al. (2012)'', is '''Strb. 1611'''.{{r|Kirkpatrick2012}} This name was taken from ''van de Kamp (1930)''{{r|van de Kamp1930}}. The origin of this designation is not explained in these articles. Anyway, it is not [[Friedrich Georg Wilhelm von Struve|Struve]]'s 1827 catalogue of binary stars, since for this catalogue another prefix ("Σ") is used, for example, "[[Σ 2398]]",{{r|Kirkpatrick2012|van de Kamp1930}} and real Σ 1611 is located in completely different part of the sky.{{r|Struve1827}} Also, Gliese 205 is not a binary star. In the paper, published in ''Annales de l'Observatoire de Strasbourg'' in 1926 an object "N** Strasb. 1611" in "5<sup>h</sup>" sections was listed,{{r|Cohn1926}} so, possibly, this designation relates to the [[Observatory of Strasbourg]]. Possibly, it is the "Catalogue de Strasbourge" of 8204 stars, published in Volume 4 of ''Annales de l'Observatoire de Strasbourg'' in 1912 — a part of international [[Astronomische Gesellschaft Katalog|Astronomische Gesellschaft Katalog (AGK)]],{{r|Cohn1926}} made by various observatories by 1912. If so, then there are earlier designations).

Of the other designations, the earliest one is '''W. B. V. 592''' or '''Weisse I, 5<sup>h</sup> 592''' (Maximiliano Weisse; [[Friedrich Bessel]], ''Positiones mediae stellarum fixarum I'', 1846).{{r|Bessel1846}} This catalogue was based on observations, made by Bessel in 1821–1833 and published in 1822–1838 in ''Astronomische Beobachtungen auf der königlichen Universitäts-Sternwarte in Königsberg'' as "Beobachtungen der Sterne, nach Zonen der Abweichung angestellt". Gliese 205, probably, was observed on January 8, 1823 in zone 140 (see the 9th abtheilung (1824), page 55, 2nd column, 33rd string).{{r|AB9-12}}

== Search for planets ==

In a 2019 [[preprint]], two candidate planets were detected using the [[radial velocity method]], both Neptune-mass with orbital periods of 17 and 270 days.<ref name="Tuomi2019"/> However, a study of this star in 2023 found no evidence of planets, and determined a stellar rotation period of 34.4 days.<ref name="Cortes-Zuleta2023"/>

==References==
{{reflist|refs=

<ref name=dr3>{{cite Gaia DR3|3209938366665770752}}</ref>

<ref name="AB9-12">"Astronomische Beobachtungen auf der königlichen Universitäts-Sternwarte in Königsberg". '''9'''—'''12'''. (1824–1827). Königsberg, Universitäts-Buchhandlung. [[Google Books|Google Books id]]: [https://books.google.com/books?id=f9RUAAAAcAAJ f9RUAAAAcAAJ]. [https://books.google.com/books?id=f9RUAAAAcAAJ&pg=PA55 Page 55]</ref>

<ref name="Struve1827">[https://books.google.com/books?id=sPjmAAAAMAAJ&pg=PA42 Page 41 (Σ 1611)]</ref>

<ref name="Bessel1846">Weisse, Maximiliano; [[Friedrich Bessel|Bessel, Friedrich]] (1846). "Positiones mediae stellarum fixarum inter −15° et +15° declinationis ex zonis regiomontanis". [[Saint Petersburg|Petropoli]]. Typis [[Russian Academy of Sciences|academiae scientarum]]. [[Google Books|Google Books id]]: [https://books.google.com/books?id=UBTnAAAAMAAJ UBTnAAAAMAAJ]. [https://books.google.com/books?id=UBTnAAAAMAAJ&pg=PA50 Page 50 (W. B. V. 592)]</ref>

<ref name="Comstock1897">{{Cite journal |bibcode = 1897ApJ.....6..419C|title = Research work at the Washburn Observatory. Stellar parallax, the lunar atmosphere, the ocular heliometer|journal = The Astrophysical Journal|volume = 6|pages = 419|last1 = Comstock|first1 = G. C.|year = 1897|doi = 10.1086/140424}}</ref>

<ref name="Schlesinger1911a">{{Cite journal |bibcode = 1911ApJ....33..234S|title = Photographic determinations of stellar parallax made with the Yerkes refractor. IV|journal = The Astrophysical Journal|volume = 33|pages = 234|last1 = Schlesinger|first1 = F.|year = 1911|doi = 10.1086/141853|doi-access = free}}</ref>

<ref name="Schlesinger1911b">{{Cite journal |bibcode = 1911ApJ....34...26S|title = Photographic determinations of stellar parallax made with the Yerkes refractor. VII|journal = The Astrophysical Journal|volume = 34|pages = 26|last1 = Schlesinger|first1 = F.|year = 1911|doi = 10.1086/141869}}</ref>

<ref name="Wolf1924">{{cite journal |author-link=Max Wolf |last=Wolf |first=M. |title=Einige starker bewegte Sterne beim Orionnebel |year=1924 |journal=[[Astronomische Nachrichten]] |volume=222 | issue= 15| pages=253–256 |doi=10.1002/asna.19242221505|bibcode=1924AN....222..253W}}
</ref>

<ref name="Adams1926">{{Cite journal |bibcode = 1926ApJ....64..225A|title = The absolute magnitudes and parallaxes of 410 stars of type M|journal = The Astrophysical Journal|volume = 64|pages = 225|last1 = Adams|first1 = W. S.|last2 = Joy|first2 = A. H.|last3 = Humason|first3 = M. L.|year = 1926|doi = 10.1086/143007|doi-access = free}}</ref>

<ref name="Cohn1926">{{Cite journal |bibcode = 1926AnOSt...1..187C|title = Deuxième Partie. Mémoires. Les Mouvements Propres des Étoiles du Catalouge A. G. De Strasbourg|journal = Annales de l'Observatoire de Strasbourg|volume = 1|pages = 187|last1 = Cohn|first1 = M.|year = 1926}}</ref>
<ref name="Porter1930">{{cite journal |last1=Porter |first1=J. G. |last2=Yowell |first2=E. J. |last3=Smith |first3=E. S. |title=A catalogue of 1474 stars with proper motion exceeding four-tenths year. |year=1930 |journal=Publications of the Cincinnati Observatory |volume=20 | pages=1–32 |bibcode=1930PCinO..20....1P}}</ref>

<ref name="van de Kamp1930">{{cite journal |last=van de Kamp |first= P. |author-link=Peter van de Kamp |title=List of stars nearer than five parsecs |year=1930 |journal=[[Popular Astronomy (US magazine)|Popular Astronomy]] |volume=38 | pages=17 |bibcode=1930PA.....38...17V}}</ref>

<ref name="Jenkins2006">{{Cite journal |bibcode = 2009ApJ...704..975J|title = Rotational Velocities for M Dwarfs|journal = The Astrophysical Journal|volume = 704|issue = 2|pages = 975|last1 = Jenkins|first1 = J. S.|last2 = Ramsey|first2 = L. W.|last3 = Jones|first3 = H. R. A.|last4 = Pavlenko|first4 = Y.|last5 = Gallardo|first5 = J.|last6 = Barnes|first6 = J. R.|last7 = Pinfield|first7 = D. J.|last8 = Laughlin|first8 = G.|last9 = Holden|first9 = B.|last10 = Teske|first10 = J. K.|last11 = Shectman|first11 = S. A.|last12 = Crane|first12 = J. D.|last13 = Thompson|first13 = I.|last14 = Keiser|first14 = S.|last15 = Jenkins|first15 = J. S.|last16 = Berdiñas|first16 = Z.|last17 = Diaz|first17 = M.|last18 = Kiraga|first18 = M.|last19 = Barnes|first19 = J. R.|year = 2009|arxiv = 0908.4092|doi = 10.1088/0004-637X/704/2/975|s2cid = 119203469}}</ref>

<ref name="Kirkpatrick2012">{{cite journal |author-link=J. Davy Kirkpatrick |last1=Kirkpatrick |first1=J. Davy |last2=Gelino |first2=Christopher R. |last3=Cushing |first3=Michael C. |last4=Mace | first4=Gregory N. |last5=Griffith |first5=Roger L. |last6=Skrutskie |first6=Michael F. |last7=Marsh |first7=Kenneth A. |last8=Wright |first8=Edward L. |last9=Eisenhardt |first9=Peter R. |last10=McLean |first10=Ian S. |last11=Mainzer | first11=Amy K. |last12=Burgasser |first12=Adam J. |last13=Tinney |first13=Chris G. |last14=Parker |first14=Stephen |last15=Salter |first15=Graeme |title=Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function |year=2012 |journal=[[The Astrophysical Journal]] |volume=753 |issue=2 |pages=156 |arxiv=1205.2122 |doi=10.1088/0004-637X/753/2/156 |bibcode=2012ApJ...753..156K |s2cid=119279752 }}</ref>

<ref name="Schönfeld SD">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/119&zone=-3&num=1123|title=BD -3 1123|work=Southern Durchmusterung|author=Schönfeld, Eduard|year=1886|display-authors=etal|access-date=2015-10-15|archive-date=2020-10-22|archive-url=https://web.archive.org/web/20201022212430/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/119&zone=-3&num=1123|url-status=live}}</ref>

<ref name="Cannon HD">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=III/135A&HD=36395|title=HD 36395|work=Henry Draper Catalogue and Extension|author=Cannon, Annie Jump|year=1918–1924|display-authors=etal|access-date=2015-10-15|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304071228/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=III/135A&HD=36395|url-status=live}}</ref>

<ref name="SAO">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/131A&SAO=132211|title=SAO 132211|work=SAO Star Catalog J2000|author=SAO Staff|year=1966|access-date=2015-10-15|archive-date=2020-10-23|archive-url=https://web.archive.org/web/20201023013041/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/131A&SAO=132211|url-status=live}}</ref>

<ref name="Gliese1991">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=V/70A&Name=Gl%20205|title=Gl 205|work=Preliminary Version of the Third Catalogue of Nearby Stars|author1=Gliese, W.|author2=Jahreiß, H.|year=1991|access-date=2015-09-21|archive-date=2020-10-23|archive-url=https://web.archive.org/web/20201023022932/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=V/70A&Name=Gl%20205|url-status=live}}</ref>

<ref name="Luyten1979 LHS">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/87B&LHS=30|title=LHS 30|work=LHS Catalogue, 2nd Edition|author=Luyten, Willem Jacob|year=1979|access-date=2015-10-15|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304081942/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I%2F87B&LHS=30|url-status=live}}</ref>

<ref name="van Leeuwen2007">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/239/hip_main&HIP=25878|title=HIP 25878|work=The Hipparcos and Tycho Catalogues|author=Perryman|year=1997|display-authors=etal|access-date=2015-09-21|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304210149/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/239/hip_main&HIP=25878|url-status=live}}</ref>

<ref name=houdebine2019>{{cite journal |bibcode=2019AJ....158...56H |title=The Mass-Activity Relationships in M and K Dwarfs. I. Stellar Parameters of Our Sample of M and K Dwarfs |last1=Houdebine |first1=Éric R. |last2=Mullan |first2=D. J. |last3=Doyle |first3=J. G. |last4=de la Vieuville |first4=Geoffroy |last5=Butler |first5=C. J. |last6=Paletou |first6=F. |journal=The Astronomical Journal |year=2019 |volume=158 |issue=2 |page=56 |doi=10.3847/1538-3881/ab23fe |arxiv=1905.07921 |s2cid=159041104 |doi-access=free }}</ref>

<ref name=mann>{{cite journal|bibcode=2015ApJ...804...64M|arxiv=1501.01635|title=How to Constrain Your M Dwarf: Measuring Effective Temperature, Bolometric Luminosity, Mass, and Radius|journal=The Astrophysical Journal|volume=804|pages=64|last1=Mann|first1=Andrew W.|last2=Feiden|first2=Gregory A.|last3=Gaidos|first3=Eric|last4=Boyajian|first4=Tabetha|last5=von Braun|first5=Kaspar|year=2015|issue=1|doi=10.1088/0004-637X/804/1/64|s2cid=19269312}}</ref>

<ref name="Luyten1979 NLTT">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/98A&recno=15215|title=NLTT 15215|work=NLTT Catalogue|author=Luyten, Willem Jacob|year=1979|access-date=2015-10-15|archive-date=2020-10-23|archive-url=https://web.archive.org/web/20201023092754/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/98A&recno=15215|url-status=live}}</ref>

<ref name="van Altena1995">{{cite web |url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/238A/picat&GCTP=1255 |title=GCTP 1255 |work=The General Catalogue of Trigonometric Stellar Parallaxes |edition=Fourth |author1=Van Altena W. F. |author2=Lee J. T. |author3=Hoffleit E. D. |year=1995 |access-date=2015-09-21 |archive-date=2020-09-25 |archive-url=https://web.archive.org/web/20200925230748/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/238A/picat&GCTP=1255 |url-status=live }}</ref>

<ref name="Perryman1997_tyc">{{cite web|url=http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/239/tyc_main&HIP=25878|title=HIP 25878|work=The Hipparcos and Tycho Catalogues|author=Perryman|year=1997|display-authors=etal|access-date=2015-09-21|archive-date=2020-10-26|archive-url=https://web.archive.org/web/20201026135916/http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/239/tyc_main&HIP=25878|url-status=live}}</ref>

<ref name="Tuomi2019">{{cite arXiv|last1=Barnes|first1=J. R.|last2=Kiraga|first2=M.|last3=Diaz|first3=M.|last4=Berdiñas|first4=Z.|last5=Jenkins|first5=J. S.|last6=Keiser|first6=S.|last7=Thompson|first7=I.|last8=Crane|first8=J. D.|last9=Shectman|first9=S. A.|display-authors=1|date=2019-06-11|title=Frequency of planets orbiting M dwarfs in the Solar neighbourhood|eprint=1906.04644|language=en|class=astro-ph.EP}}</ref>

<ref name="Cortes-Zuleta2023">{{cite journal |last1=Cortes-Zuleta |first1=P. |last2=Boisse |first2=I. |display-authors=etal |date=May 2023 |title=Optical and near-infrared stellar activity characterization of the early M dwarf Gl 205 with SOPHIE and SPIRou |journal=[[Astronomy & Astrophysics]] |volume=673 |issue= |pages=A14 |doi=10.1051/0004-6361/202245131 |arxiv=2301.10614 |bibcode=2023A&A...673A..14C|s2cid=256231309 }}</ref>

}}

{{Nearest star systems|4}}
{{Stars of Orion}}

{{DEFAULTSORT:Gliese 205}}
[[Category:Orion (constellation)]]
[[Category:M-type main-sequence stars]]
[[Category:Henry Draper Catalogue objects|036395]]
[[Category:Gliese and GJ objects|0205]]
[[Category:2MASS objects|J05312734-0340356]]
[[Category:Durchmusterung objects|BD−03 1123]]
[[Category:Hipparcos objects|025878]]
[[Category:TIC objects|50726077]]