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Coordinates: Sky map 00h 05m 24.4279s, −37° 21′ 26.503″
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{{Short description|Star in the constellation of Sculptor}}
{{Short description|Red dwarf star in the constellation of Sculptor}}
{{Sky|00|05|24.4279|−|37|21|26.503|14.175}}
{{Sky|00|05|24.4279|−|37|21|26.503|14.175}}
{{Starbox begin
{{Starbox begin
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}}
}}
{{Starbox character
{{Starbox character
| class=M1.5V<ref name="SIMBAD"/>
| class=M2V<ref name=houk1982/>
| b-v=+1.46<ref name=MNRAS32/>
| b-v=+1.46<ref name=MNRAS32/>
| u-b=+1.04<ref name=MNRAS32/>
| u-b=+1.04<ref name=MNRAS32/>
| variable=[[BY Draconis variable|BY]]<ref name=GCVS />
| variable=[[BY Draconis variable|BY Dra]]<ref name=GCVS />
}}
}}
{{Starbox astrometry
{{Starbox astrometry
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{{Starbox detail
{{Starbox detail
| mass={{val|0.33|0.07}}<ref name=maldonado2020/>
| mass={{val|0.33|0.07}}<ref name=maldonado2020/>
| radius={{val|0.33|0.06}}<ref name=maldonado2020/>
| radius={{val|0.379|0.002}}<ref name=Rabus/>
| luminosity={{val|0.015|0.007|0.005}}<ref name=maldonado2020/>
| luminosity={{val|0.015|0.007|0.005}}<ref name=maldonado2020/>
| temperature={{val|3478|68|fmt=commas}}<ref name=maldonado2020/>
| temperature={{val|3616|14|fmt=commas}}<ref name=Rabus/>
| metal_fe={{val|−0.26|0.09}}<ref name=maldonado2020/>
| metal_fe={{val|−0.26|0.09}}<ref name=maldonado2020/>
| rotation={{Val|60.1|5.7|u=d}}<ref name=mnras452_3_2745/>
| rotation={{Val|60.1|5.7|u=d}}<ref name=mnras452_3_2745/>
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}}
}}
{{Starbox catalog
{{Starbox catalog
| names=[[Cordoba Durchmusterung|CD]] -37°15492, [[Durchmusterung|CPD]]−37°9435, [[Henry L. Giclas catalogue|G]] 267-025, [[Gliese–Jahreiß catalogue|GJ]] 1, [[Boss General Catalogue|GC]]&nbsp;49, [[General Catalogue of Trigonometric Parallaxes|GCTP]]&nbsp;5817.00, [[Henry Draper catalogue|HD]]&nbsp;225213, [[Hipparcos catalogue|HIP]]&nbsp;439, [[Luyten Half-Second catalogue|LHS]]&nbsp;1, [[Luyten Two-Tenths catalogue|LTT]]&nbsp;23, [[New Luyten Two-Tenths catalogue|NLTT]]&nbsp;134, NSV&nbsp;15017, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;192348<ref name="SIMBAD"/>
| names=[[Cordoba Durchmusterung|CD]]−37°15492, [[Durchmusterung|CPD]]−37°9435, [[Henry L. Giclas catalogue|G]] 267-025, [[Gliese–Jahreiß catalogue|GJ]] 1, [[Boss General Catalogue|GC]]&nbsp;49, [[General Catalogue of Trigonometric Parallaxes|GCTP]]&nbsp;5817.00, [[Henry Draper catalogue|HD]]&nbsp;225213, [[Hipparcos catalogue|HIP]]&nbsp;439, [[Luyten Half-Second catalogue|LHS]]&nbsp;1, [[Luyten Two-Tenths catalogue|LTT]]&nbsp;23, [[New Luyten Two-Tenths catalogue|NLTT]]&nbsp;134, NSV&nbsp;15017, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;192348<ref name="SIMBAD"/>
}}
}}
{{Starbox reference
{{Starbox reference
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{{Starbox end}}
{{Starbox end}}


'''Gliese 1''' is a [[red dwarf]] in the [[constellation]] [[Sculptor (constellation)|Sculptor]], which is found in the southern celestial hemisphere. It is one of the [[list of nearest stars|closest stars]] to the [[Sun]], at a distance of 14.2 [[light year]]s. Because of its proximity to the Earth it is a frequent object of study and much is known about its physical properties and composition. However, with an [[apparent magnitude]] of about 8.5 it is too faint to be seen with the naked eye.
'''Gliese 1''' is a [[red dwarf]] in the [[constellation]] [[Sculptor (constellation)|Sculptor]], which is found in the southern celestial hemisphere. It is one of the [[list of nearest stars|closest stars]] to the [[Sun]], at a distance of 14.2 [[light year]]s. Because of its proximity to the Earth it is a frequent object of study and much is known about its physical properties and composition. However, with an [[apparent magnitude]] of about 8.6 it is too faint to be seen with the naked eye.


==History==
==History==
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==Properties==
==Properties==
The [[stellar classification]] of this star has been rated from M1.5V to M4.0V by various sources.<ref name=mk/> Gliese 1 is estimated to have 33% of the Sun's [[solar mass|mass]] and 33% of the Sun's [[solar radius|radius]].<ref name=maldonado2020/>
The [[stellar classification]] of this star has been rated from M1.5V to M4.0V by various sources.<ref name=mk/> Gliese 1 is estimated to have 33% of the Sun's [[solar mass|mass]]<ref name=maldonado2020/> and 38% of the Sun's [[solar radius|radius]].<ref name=Rabus/>


This star is suspected of being a [[BY Draconis variable|BY Draconis-type]] [[variable star]] with the provisional variable star designation ''NSV 15017''.<ref name=GCVS/> It is also suspected of being a [[flare star]].<ref name="aaa367"/> Like other [[flare star]]s, it emits X-rays.<ref name=Schmitt/> The temperatures of the layers of the atmosphere of this star have been measured.<ref name=lexen/>
This star is suspected of being a [[BY Draconis variable|BY Draconis-type]] [[variable star]] with the provisional variable star designation ''NSV 15017''.<ref name=GCVS/> It is also suspected of being a [[flare star]].<ref name="aaa367"/> Like other [[flare star]]s, it emits X-rays.<ref name=Schmitt/> The temperatures of the layers of the atmosphere of this star have been measured.<ref name=lexen/>
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This star has been examined for an orbiting companion using speckle interferometry in the near [[infrared]] part of the spectrum. However, no companion was found to a magnitude limit of 10.5 at 1 [[Astronomical Unit|AU]] from the primary, out to a magnitude limit of 12.5 at 10 AU.<ref name=leinert/> Radial velocity measurements have likewise failed to reveal the presence of a companion orbiting this star. This search excludes a planet with a few Earth masses orbiting in the habitable zone, or a Jupiter-mass planet orbiting at a radius of 1&nbsp;[[Astronomical Unit|AU]] or less. The radial velocity shows little or no variability, with a measurement precision of less than 20&nbsp;m/s.<ref name=aaa505_2_859/>
This star has been examined for an orbiting companion using speckle interferometry in the near [[infrared]] part of the spectrum. However, no companion was found to a magnitude limit of 10.5 at 1 [[Astronomical Unit|AU]] from the primary, out to a magnitude limit of 12.5 at 10 AU.<ref name=leinert/> Radial velocity measurements have likewise failed to reveal the presence of a companion orbiting this star. This search excludes a planet with a few Earth masses orbiting in the habitable zone, or a Jupiter-mass planet orbiting at a radius of 1&nbsp;[[Astronomical Unit|AU]] or less. The radial velocity shows little or no variability, with a measurement precision of less than 20&nbsp;m/s.<ref name=aaa505_2_859/>


The [[Space velocity (astronomy)|space velocity]] components of this star are U = +77.2, V = -99.5 and W = -35.6&nbsp;km/s.<ref name=eggen/> It is orbiting through the [[Milky Way]] galaxy with an [[orbital eccentricity]] of 0.45, and a distance from the galactic core that varies from 3,510 to 9,150 parsecs. By comparison, the Sun is currently 8,500 parsecs from the core.<ref name=santillan/> Stars with high [[peculiar velocity|peculiar velocities]] are termed [[runaway star]]s. This star has a high peculiar velocity of 111.3&nbsp;km/s, and the velocity vector for this star may link it with the [[Tucana-Horologium association|Tucana-Horologium]] and/or the [[AB Doradus moving group|AB Doradus]] [[stellar association]]s.<ref name=mnras410_1_190/>
The [[Space velocity (astronomy)|space velocity]] components of this star are U = +77.2, V = -99.5 and W = {{val|-35.6|u=km/s}}.<ref name=eggen/> It is orbiting through the [[Milky Way]] galaxy with an [[orbital eccentricity]] of 0.45, and a distance from the galactic core that varies from 3,510 to 9,150 parsecs. By comparison, the Sun is currently 8,500 parsecs from the core.<ref name=santillan/> Stars with high [[peculiar velocity|peculiar velocities]] are termed [[runaway star]]s. This star has a high peculiar velocity of {{val|111.3|u=km/s}}, and the velocity vector for this star may link it with the [[Tucana-Horologium association|Tucana-Horologium]] and/or the [[AB Doradus moving group|AB Doradus]] [[stellar association]]s.<ref name=mnras410_1_190/>
{{Clear}}


==References==
==References==
{{reflist|30em|refs=
{{reflist|30em|refs=

⚫
<ref name=houk1982>{{cite journal
| last1=Houk | first1=N. | last2=Swift | first2=C.
| title=Michigan catalogue of two-dimensional spectral types for the HD Stars
| journal=Michigan Spectral Survey
| volume=3 | year=1982
| bibcode=1982mcts.book.....H }}</ref>

<ref name=Rabus>{{Cite journal |last1=Rabus |first1=Markus |last2=Lachaume |first2=Régis |last3=Jordán |first3=Andrés |last4=Brahm |first4=Rafael |last5=Boyajian |first5=Tabetha |last6=von Braun |first6=Kaspar |last7=Espinoza |first7=Néstor |last8=Berger |first8=Jean-Philippe |last9=Le Bouquin |first9=Jean-Baptiste |last10=Absil |first10=Olivier |date=2019-04-01 |title=A discontinuity in the T eff–radius relation of M-dwarfs |url=https://academic.oup.com/mnras/article/484/2/2674/5289886 |journal=Monthly Notices of the Royal Astronomical Society |language=en |volume=484 |issue=2 |pages=2674–2683 |doi=10.1093/mnras/sty3430 |doi-access=free |issn=0035-8711}}</ref>


<ref name=maldonado2020>{{cite journal |bibcode=2020A&A...644A..68M |title=HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets |last1=Maldonado |first1=J. |last2=Micela |first2=G. |last3=Baratella |first3=M. |last4=d'Orazi |first4=V. |last5=Affer |first5=L. |last6=Biazzo |first6=K. |last7=Lanza |first7=A. F. |last8=Maggio |first8=A. |last9=González Hernández |first9=J. I. |last10=Perger |first10=M. |last11=Pinamonti |first11=M. |last12=Scandariato |first12=G. |last13=Sozzetti |first13=A. |last14=Locci |first14=D. |last15=Di Maio |first15=C. |last16=Bignamini |first16=A. |last17=Claudi |first17=R. |last18=Molinari |first18=E. |last19=Rebolo |first19=R. |last20=Ribas |first20=I. |last21=Toledo-Padrón |first21=B. |last22=Covino |first22=E. |last23=Desidera |first23=S. |last24=Herrero |first24=E. |last25=Morales |first25=J. C. |last26=Suárez-Mascareño |first26=A. |last27=Pagano |first27=I. |last28=Petralia |first28=A. |last29=Piotto |first29=G. |last30=Poretti |first30=E. |journal=Astronomy and Astrophysics |year=2020 |volume=644 |pages=A68 |doi=10.1051/0004-6361/202039478 |arxiv=2010.14867 |s2cid=225094682 }}</ref>
<ref name=maldonado2020>{{cite journal |bibcode=2020A&A...644A..68M |title=HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets |last1=Maldonado |first1=J. |last2=Micela |first2=G. |last3=Baratella |first3=M. |last4=d'Orazi |first4=V. |last5=Affer |first5=L. |last6=Biazzo |first6=K. |last7=Lanza |first7=A. F. |last8=Maggio |first8=A. |last9=González Hernández |first9=J. I. |last10=Perger |first10=M. |last11=Pinamonti |first11=M. |last12=Scandariato |first12=G. |last13=Sozzetti |first13=A. |last14=Locci |first14=D. |last15=Di Maio |first15=C. |last16=Bignamini |first16=A. |last17=Claudi |first17=R. |last18=Molinari |first18=E. |last19=Rebolo |first19=R. |last20=Ribas |first20=I. |last21=Toledo-Padrón |first21=B. |last22=Covino |first22=E. |last23=Desidera |first23=S. |last24=Herrero |first24=E. |last25=Morales |first25=J. C. |last26=Suárez-Mascareño |first26=A. |last27=Pagano |first27=I. |last28=Petralia |first28=A. |last29=Piotto |first29=G. |last30=Poretti |first30=E. |journal=Astronomy and Astrophysics |year=2020 |volume=644 |pages=A68 |doi=10.1051/0004-6361/202039478 |arxiv=2010.14867 |s2cid=225094682 }}</ref>
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| journal=Astronomical Journal | volume=111
| journal=Astronomical Journal | volume=111
| pages=466–475 |date=January 1996
| pages=466–475 |date=January 1996
| doi=10.1086/117797 | bibcode=1996AJ....111..466E}}</ref>
| doi=10.1086/117797 | bibcode=1996AJ....111..466E| doi-access=free}}</ref>


<ref name=santillan>{{cite journal
<ref name=santillan>{{cite journal
|author1=Allen, Christine |author2=Santillan, Alfredo | title=An improved model of the galactic mass distribution for orbit computations
|author1=Allen, Christine|author1-link=Christine Allen (astronomer) |author2=Santillan, Alfredo | title=An improved model of the galactic mass distribution for orbit computations
| journal=Revista Mexicana de Astronomía y Astrofísica
| journal=Revista Mexicana de Astronomía y Astrofísica
| volume=22 |date=October 1991
| volume=22 |date=October 1991
| pages=255–263 | bibcode=1991RMxAA..22..255A }}</ref>
| pages=255–263 | bibcode=1991RMxAA..22..255A }}</ref>


<ref name=aaa493_3_1099>{{citation | last1=Schröder | first1=C. | last2=Reiners | first2=Ansgar | last3=Schmitt | first3=Jürgen H. M. M. | title=Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo | journal=Astronomy and Astrophysics | volume=493 | issue=3 | pages=1099–1107 | date=January 2009 | doi=10.1051/0004-6361:200810377 | bibcode=2009A&A...493.1099S | doi-access=free | url=http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2 }}</ref>
<ref name=aaa493_3_1099>{{cite journal | last1=Schröder | first1=C. | last2=Reiners | first2=Ansgar | last3=Schmitt | first3=Jürgen H. M. M. | title=Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo | journal=Astronomy and Astrophysics | volume=493 | issue=3 | pages=1099–1107 | date=January 2009 | doi=10.1051/0004-6361:200810377 | bibcode=2009A&A...493.1099S | doi-access=free }}</ref>


<ref name=aaa505_2_859>{{cite journal |author1=Zechmeister, M. |author2=Kürster, M. |author3=Endl, M. | title=The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the habitable zone of M dwarfs | journal=Astronomy and Astrophysics | volume=505 | issue=2 | pages=859–871 | arxiv=0908.0944 |date=October 2009 | doi=10.1051/0004-6361/200912479 | bibcode=2009A&A...505..859Z |s2cid=16845441 }}</ref>
<ref name=aaa505_2_859>{{cite journal |author1=Zechmeister, M. |author2=Kürster, M. |author3=Endl, M. | title=The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the habitable zone of M dwarfs | journal=Astronomy and Astrophysics | volume=505 | issue=2 | pages=859–871 | arxiv=0908.0944 |date=October 2009 | doi=10.1051/0004-6361/200912479 | bibcode=2009A&A...505..859Z |s2cid=16845441 }}</ref>


<ref name=mnras410_1_190>{{cite journal | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun |author1=Tetzlaff, N. |author2=Neuhäuser, R. |author3=Hohle, M. M. | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=410 | issue=1 | pages=190&ndash;200 |date=January 2011 | doi=10.1111/j.1365-2966.2010.17434.x | bibcode=2011MNRAS.410..190T |arxiv = 1007.4883 |s2cid=118629873 }}</ref>->>
<ref name=mnras410_1_190>{{cite journal | title=A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun |author1=Tetzlaff, N. |author2=Neuhäuser, R. |author3=Hohle, M. M. | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=410 | issue=1 | pages=190&ndash;200 |date=January 2011 | doi=10.1111/j.1365-2966.2010.17434.x |doi-access=free | bibcode=2011MNRAS.410..190T |arxiv = 1007.4883 |s2cid=118629873 }}</ref>


<ref name=mnras452_3_2745>{{citation
<ref name=mnras452_3_2745>{{cite journal
| display-authors=1
| display-authors=1
| last1=Suárez Mascareño | first1=A. | last2=Rebolo | first2=R.
| last1=Suárez Mascareño | first1=A. | last2=Rebolo | first2=R.
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| journal=Monthly Notices of the Royal Astronomical Society
| journal=Monthly Notices of the Royal Astronomical Society
| volume=452 | issue=3 | pages=2745–2756 | date=September 2015
| volume=452 | issue=3 | pages=2745–2756 | date=September 2015
| doi=10.1093/mnras/stv1441 | bibcode=2015MNRAS.452.2745S
| doi=10.1093/mnras/stv1441 | doi-access=free | bibcode=2015MNRAS.452.2745S
| arxiv=1506.08039 | s2cid=119181646 | postscript=.
| arxiv=1506.08039 | s2cid=119181646 }}</ref>
}}</ref>


<ref name="hipparcos">{{citation | display-authors=1 | last1=Perryman | first1=M. A. C.
<ref name="hipparcos">{{cite journal | display-authors=1 | last1=Perryman | first1=M. A. C.
| last2=Lindegren | first2=L. | last3=Kovalevsky
| last2=Lindegren | first2=L. | last3=Kovalevsky
| first3=J. | last4=Hoeg | first4=E. | last5=Bastian
| first3=J. | last4=Hoeg | first4=E. | last5=Bastian
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| last=Wilson | first=R. E. | date=1953
| last=Wilson | first=R. E. | date=1953
| title=General Catalogue of Stellar Radial Velocities
| title=General Catalogue of Stellar Radial Velocities
| journal=[[Carnegie Institution of Washington]] | pages=0 | bibcode=1953GCRV..C......0W }}</ref>
| journal=[[Carnegie Institution of Washington]] | page=0 | bibcode=1953GCRV..C......0W }}</ref>


<ref name=Liefke>{{cite journal |author1=Schmitt, JHMM |author2=Liefke, C |title=NEXXUS: A comprehensive ROSAT survey of coronal X-ray emission among nearby solar-like stars |journal=Astron. Astrophys. |volume=417 |issue=2 |pages=651–65 |date=April 2004
<ref name=Liefke>{{cite journal |author1=Schmitt, JHMM |author2=Liefke, C |title=NEXXUS: A comprehensive ROSAT survey of coronal X-ray emission among nearby solar-like stars |journal=Astron. Astrophys. |volume=417 |issue=2 |pages=651–65 |date=April 2004
|arxiv = astro-ph/0308510 |bibcode = 2004A&A...417..651S |doi = 10.1051/0004-6361:20030495 |s2cid=17464039 }}</ref>
|arxiv = astro-ph/0308510 |bibcode = 2004A&A...417..651S |doi = 10.1051/0004-6361:20030495 |s2cid=17464039 }}</ref>

<ref name="RECONS">{{cite web
| title=The One Hundred Nearest Star Systems
| date=2009-01-01 | work=[[RECONS]]
| publisher=[[Georgia State University]]
| url=http://www.astro.gsu.edu/RECONS/TOP100.posted.htm
| access-date=2009-09-08 }}</ref>


<ref name="aaa367">{{cite journal
<ref name="aaa367">{{cite journal
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| journal=Astronomy and Astrophysics | volume=367
| journal=Astronomy and Astrophysics | volume=367
|issue=2 | pages=521–524 |date=February 2001
|issue=2 | pages=521–524 |date=February 2001
| doi=10.1051/0004-6361:20000451 | bibcode=2001A&A...367..521P|arxiv = astro-ph/0012289 |s2cid=425754 }} ''Note:'' Search the [[VizieR]] catalogue [http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/224 II/224] for HD 225213.</ref>
| doi=10.1051/0004-6361:20000451 | bibcode=2001A&A...367..521P|arxiv = astro-ph/0012289 |s2cid=425754 }} ''Note:'' Search the [[VizieR]] catalogue [http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/224 II/224] {{Webarchive|url=https://web.archive.org/web/20190603080055/http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II%2F224 |date=2019-06-03 }} for HD 225213.</ref>


<ref name="SIMBAD">{{cite web
<ref name="SIMBAD">{{cite web
| url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NSV+15017
| url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NSV+15017
| title=NSV 15017 -- Flare Star | work=[[SIMBAD]]
| title=NSV 15017 -- Flare Star
| work=[[SIMBAD]]
| publisher=[[Centre de Données astronomiques de Strasbourg]] | access-date=2006-06-12}}</ref>
| publisher=[[Centre de Données astronomiques de Strasbourg]]
| access-date=2006-06-12
| archive-date=2019-06-05

| archive-url=https://web.archive.org/web/20190605175059/http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NSV+15017
⚫
<ref name=gould>{{cite journal
| url-status=live
| last=Gould | first=B.
| title=Star with large proper motion, in Sculptor | date=1885
| journal=[[Astronomische Nachrichten]]|volume=111| issue=16
|page=255
| bibcode=1885AN....111..255G | doi=10.1002/asna.18851111612| url=https://zenodo.org/record/1424723
}}</ref>
}}</ref>

<ref name=gould>{{cite journal | last=Gould | first=B. | title=Star with large proper motion, in Sculptor | date=1885 | journal=[[Astronomische Nachrichten]] | volume=111 | issue=16 | page=255 | bibcode=1885AN....111..255G | doi=10.1002/asna.18851111612 | url=https://zenodo.org/record/1424723 | access-date=2019-07-04 | archive-date=2023-07-23 | archive-url=https://web.archive.org/web/20230723035112/https://zenodo.org/record/1424723 | url-status=live }}</ref>


<ref name=gj>{{cite journal
<ref name=gj>{{cite journal
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| journal=Veröffentlichungen des Astronomischen Rechen-Instituts Heidelberg
| journal=Veröffentlichungen des Astronomischen Rechen-Instituts Heidelberg
| volume=22
| volume=22
| pages=1
| page=1
| bibcode=1969VeARI..22....1G
| bibcode=1969VeARI..22....1G
}}</ref>
}}</ref>
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'''M1.5:''' SIMBAD. '''M3:''' Gautier, Thomas N., III; ''et al.'' (2007). '''M3:''' Schmitt, J. H. M. M.; ''et al.'' (2004). '''M4:''' Eggen, Olin J. (1996) '''M4:''' Pasinetti-Fracassini, L. E.; ''et al.'' (2001).</ref>
'''M1.5:''' SIMBAD. '''M3:''' Gautier, Thomas N., III; ''et al.'' (2007). '''M3:''' Schmitt, J. H. M. M.; ''et al.'' (2004). '''M4:''' Eggen, Olin J. (1996) '''M4:''' Pasinetti-Fracassini, L. E.; ''et al.'' (2001).</ref>


<ref name=GCVS>{{cite web | url=http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=NSV+15017+ | title=General Catalogue of Variable Stars NSV 15017 | publisher=[[Centre de Données astronomiques de Strasbourg]]|access-date=2009-12-14}}</ref>
<ref name=GCVS>{{cite web | url=http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=NSV+15017+ | title=General Catalogue of Variable Stars NSV 15017 | publisher=[[Centre de Données astronomiques de Strasbourg]] | access-date=2009-12-14 | archive-date=2018-10-03 | archive-url=https://web.archive.org/web/20181003181812/http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=NSV+15017+ | url-status=live }}</ref>


<ref name=Schmitt>{{ cite journal |author1=Schmitt, JHMM |author2=Fleming, TA |author3=Giampapa, MS |title=The X-ray view of the low-mass stars in the solar neighborhood |journal=Astrophys. J. |date=September 1995 |volume=450 |issue=9 |pages=392–400 |bibcode=1995ApJ...450..392S |doi=10.1086/176149}}</ref>
<ref name=Schmitt>{{ cite journal |author1=Schmitt, JHMM |author2=Fleming, TA |author3=Giampapa, MS |title=The X-ray view of the low-mass stars in the solar neighborhood |journal=Astrophys. J. |date=September 1995 |volume=450 |issue=9 |pages=392–400 |bibcode=1995ApJ...450..392S |doi=10.1086/176149|doi-access=free }}</ref>


<ref name=lexen>{{cite journal
<ref name=lexen>{{cite journal
Line 185: Line 187:
| pages= A101|date=January 2010
| pages= A101|date=January 2010
| bibcode= 2010A&A...509A.101L
| bibcode= 2010A&A...509A.101L
| doi=10.1051/0004-6361/200912434 | doi-access=free }}</ref>
| doi=10.1051/0004-6361/200912434 | doi-access=free | hdl=1885/36235 | hdl-access=free }}</ref>


<ref name=leinert>{{cite journal |last1=Leinert |first1=C. |last2=Henry |first2=T. |last3=Glindemann |first3=A. |last4=McCarthy |first4=D. W., Jr. | title=A search for companions to nearby southern M dwarfs with near-infrared speckle interferometry | journal=Astronomy and Astrophysics | volume=325 | pages=159–166 |date=September 1997 | bibcode=1997A&A...325..159L }}</ref>
<ref name=leinert>{{cite journal |last1=Leinert |first1=C. |last2=Henry |first2=T. |last3=Glindemann |first3=A. |last4=McCarthy |first4=D. W. Jr. | title=A search for companions to nearby southern M dwarfs with near-infrared speckle interferometry | journal=Astronomy and Astrophysics | volume=325 | pages=159–166 |date=September 1997 | bibcode=1997A&A...325..159L }}</ref>


}}
}}
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{{DEFAULTSORT:Gliese 1}}
{{DEFAULTSORT:Gliese 1}}
[[Category:Gliese and GJ objects|0001]]
[[Category:Gliese and GJ objects|0001]]
⚫
[[Category:High-proper-motion stars]]
[[Category:Hipparcos objects|000439]]
[[Category:Hipparcos objects|000439]]
[[Category:Henry Draper Catalogue objects|225213]]
[[Category:Henry Draper Catalogue objects|225213]]
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[[Category:Astronomical objects discovered in 1885|?]]
[[Category:Astronomical objects discovered in 1885|?]]
[[Category:TIC objects]]
[[Category:TIC objects]]
[[Category:BY Draconis variables]]
⚫
[[Category:Flare stars]]
[[Category:Suspected variables]]

Revision as of 05:02, 23 September 2024

Gliese 1
Observation data
Epoch J2000      Equinox J2000
Constellation Sculptor
Right ascension 00h 05m 24.4279s[1]
Declination −37° 21′ 26.503″[1]
Apparent magnitude (V) 8.57[2]
Characteristics
Spectral type M2V[3]
U−B color index +1.04[4]
B−V color index +1.46[4]
Variable type BY Dra[5]
Astrometry
Radial velocity (Rv)+23.6±2[6] km/s
Proper motion (μ) RA: +5,633.95[1] mas/yr
Dec.: −2,336.69[1] mas/yr
Parallax (π)230.0970 ± 0.0362 mas[7]
Distance14.175 ± 0.002 ly
(4.3460 ± 0.0007 pc)
Absolute magnitude (MV)10.35[8]
Details
Mass0.33±0.07[9] M☉
Radius0.379±0.002[10] R☉
Luminosity0.015+0.007
−0.005[9] L☉
Surface gravity (log g)4.91[9] cgs
Temperature3,616±14[10] K
Metallicity [Fe/H]−0.26±0.09[9] dex
Rotation60.1±5.7 d[11]
Rotational velocity (v sin i)4.8[12] km/s
Age8.27[9] Gyr
Other designations
CD−37°15492, CPD−37°9435, G 267-025, GJ 1, GC 49, GCTP 5817.00, HD 225213, HIP 439, LHS 1, LTT 23, NLTT 134, NSV 15017, SAO 192348[2]
Database references
SIMBADdata
Gliese 1 is located in the constellation Sculptor.
Gliese 1 is located in the constellation Sculptor.
Gliese 1
Location of Gliese 1 in the constellation Sculptor

Gliese 1 is a red dwarf in the constellation Sculptor, which is found in the southern celestial hemisphere. It is one of the closest stars to the Sun, at a distance of 14.2 light years. Because of its proximity to the Earth it is a frequent object of study and much is known about its physical properties and composition. However, with an apparent magnitude of about 8.6 it is too faint to be seen with the naked eye.

History

This star's high proper motion was first documented by Benjamin Gould in 1885. At that time the star was identified as Cordoba Z.C. 23h 1584.[13] As it lies very close to the origin of the astronomical right ascension coordinates during the 1950 epoch, it became the first star in both the Gliese Catalogue of Nearby Stars and the Luyten Half-Second star catalogues.[14][15]

Properties

The stellar classification of this star has been rated from M1.5V to M4.0V by various sources.[16] Gliese 1 is estimated to have 33% of the Sun's mass[9] and 38% of the Sun's radius.[10]

This star is suspected of being a BY Draconis-type variable star with the provisional variable star designation NSV 15017.[5] It is also suspected of being a flare star.[17] Like other flare stars, it emits X-rays.[18] The temperatures of the layers of the atmosphere of this star have been measured.[19]

This star has been examined for an orbiting companion using speckle interferometry in the near infrared part of the spectrum. However, no companion was found to a magnitude limit of 10.5 at 1 AU from the primary, out to a magnitude limit of 12.5 at 10 AU.[20] Radial velocity measurements have likewise failed to reveal the presence of a companion orbiting this star. This search excludes a planet with a few Earth masses orbiting in the habitable zone, or a Jupiter-mass planet orbiting at a radius of 1 AU or less. The radial velocity shows little or no variability, with a measurement precision of less than 20 m/s.[21]

The space velocity components of this star are U = +77.2, V = -99.5 and W = −35.6 km/s.[22] It is orbiting through the Milky Way galaxy with an orbital eccentricity of 0.45, and a distance from the galactic core that varies from 3,510 to 9,150 parsecs. By comparison, the Sun is currently 8,500 parsecs from the core.[23] Stars with high peculiar velocities are termed runaway stars. This star has a high peculiar velocity of 111.3 km/s, and the velocity vector for this star may link it with the Tucana-Horologium and/or the AB Doradus stellar associations.[24]

References

  1. ^ a b c d Perryman, M. A. C.; et al. (1997). "The Hipparcos Catalogue". Astronomy & Astrophysics. 323: L49–L52. Bibcode:1997A&A...323L..49P.
  2. ^ a b "NSV 15017 -- Flare Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Archived from the original on 2019-06-05. Retrieved 2006-06-12.
  3. ^ Houk, N.; Swift, C. (1982). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 3. Bibcode:1982mcts.book.....H.
  4. ^ a b Cousins, A. W. J. (1973). "UBV Photometry of Some Southern Stars (Third List)". Monthly Notes of the Astronomical Society of Southern Africa. 32 (2): 43–48. Bibcode:1973MNSSA..32...43C.
  5. ^ a b "General Catalogue of Variable Stars NSV 15017". Centre de Données astronomiques de Strasbourg. Archived from the original on 2018-10-03. Retrieved 2009-12-14.
  6. ^ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institution of Washington: 0. Bibcode:1953GCRV..C......0W.
  7. ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  8. ^ Schmitt, JHMM; Liefke, C (April 2004). "NEXXUS: A comprehensive ROSAT survey of coronal X-ray emission among nearby solar-like stars". Astron. Astrophys. 417 (2): 651–65. arXiv:astro-ph/0308510. Bibcode:2004A&A...417..651S. doi:10.1051/0004-6361:20030495. S2CID 17464039.
  9. ^ a b c d e f Maldonado, J.; Micela, G.; Baratella, M.; d'Orazi, V.; Affer, L.; Biazzo, K.; Lanza, A. F.; Maggio, A.; González Hernández, J. I.; Perger, M.; Pinamonti, M.; Scandariato, G.; Sozzetti, A.; Locci, D.; Di Maio, C.; Bignamini, A.; Claudi, R.; Molinari, E.; Rebolo, R.; Ribas, I.; Toledo-Padrón, B.; Covino, E.; Desidera, S.; Herrero, E.; Morales, J. C.; Suárez-Mascareño, A.; Pagano, I.; Petralia, A.; Piotto, G.; Poretti, E. (2020). "HADES RV programme with HARPS-N at TNG. XII. The abundance signature of M dwarf stars with planets". Astronomy and Astrophysics. 644: A68. arXiv:2010.14867. Bibcode:2020A&A...644A..68M. doi:10.1051/0004-6361/202039478. S2CID 225094682.
  10. ^ a b c Rabus, Markus; Lachaume, Régis; Jordán, Andrés; Brahm, Rafael; Boyajian, Tabetha; von Braun, Kaspar; Espinoza, Néstor; Berger, Jean-Philippe; Le Bouquin, Jean-Baptiste; Absil, Olivier (2019-04-01). "A discontinuity in the T eff–radius relation of M-dwarfs". Monthly Notices of the Royal Astronomical Society. 484 (2): 2674–2683. doi:10.1093/mnras/sty3430. ISSN 0035-8711.
  11. ^ Suárez Mascareño, A.; et al. (September 2015). "Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators". Monthly Notices of the Royal Astronomical Society. 452 (3): 2745–2756. arXiv:1506.08039. Bibcode:2015MNRAS.452.2745S. doi:10.1093/mnras/stv1441. S2CID 119181646.
  12. ^ Schröder, C.; Reiners, Ansgar; Schmitt, Jürgen H. M. M. (January 2009). "Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo". Astronomy and Astrophysics. 493 (3): 1099–1107. Bibcode:2009A&A...493.1099S. doi:10.1051/0004-6361:200810377.
  13. ^ Gould, B. (1885). "Star with large proper motion, in Sculptor". Astronomische Nachrichten. 111 (16): 255. Bibcode:1885AN....111..255G. doi:10.1002/asna.18851111612. Archived from the original on 2023-07-23. Retrieved 2019-07-04.
  14. ^ Gliese, W. (1969). "Catalogue of Nearby Stars". Veröffentlichungen des Astronomischen Rechen-Instituts Heidelberg. 22: 1. Bibcode:1969VeARI..22....1G.
  15. ^ Luyten, W. J. (1976). LHS (Luyten half-second) Catalogue. Minneapolis, Minnesota: University of Minnesota. Bibcode:1976lhsc.book.....L.
  16. ^ M1.5: SIMBAD. M3: Gautier, Thomas N., III; et al. (2007). M3: Schmitt, J. H. M. M.; et al. (2004). M4: Eggen, Olin J. (1996) M4: Pasinetti-Fracassini, L. E.; et al. (2001).
  17. ^ Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics". Astronomy and Astrophysics. 367 (2): 521–524. arXiv:astro-ph/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451. S2CID 425754. Note: Search the VizieR catalogue II/224 Archived 2019-06-03 at the Wayback Machine for HD 225213.
  18. ^ Schmitt, JHMM; Fleming, TA; Giampapa, MS (September 1995). "The X-ray view of the low-mass stars in the solar neighborhood". Astrophys. J. 450 (9): 392–400. Bibcode:1995ApJ...450..392S. doi:10.1086/176149.
  19. ^ E. Lexen; R. Wehrse; J. Liebert; M. S. Bessell (January 2010). "The outer atmospheric layers of the early M dwarf Gliese 1". Astronomy and Astrophysics. 509: A101. Bibcode:2010A&A...509A.101L. doi:10.1051/0004-6361/200912434. hdl:1885/36235.
  20. ^ Leinert, C.; Henry, T.; Glindemann, A.; McCarthy, D. W. Jr. (September 1997). "A search for companions to nearby southern M dwarfs with near-infrared speckle interferometry". Astronomy and Astrophysics. 325: 159–166. Bibcode:1997A&A...325..159L.
  21. ^ Zechmeister, M.; Kürster, M.; Endl, M. (October 2009). "The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the habitable zone of M dwarfs". Astronomy and Astrophysics. 505 (2): 859–871. arXiv:0908.0944. Bibcode:2009A&A...505..859Z. doi:10.1051/0004-6361/200912479. S2CID 16845441.
  22. ^ Eggen, Olin J. (January 1996). "Distribution and Corrlation of Age, Abundance, and Motion of Lower Main Sequence Stars". Astronomical Journal. 111: 466–475. Bibcode:1996AJ....111..466E. doi:10.1086/117797.
  23. ^ Allen, Christine; Santillan, Alfredo (October 1991). "An improved model of the galactic mass distribution for orbit computations". Revista Mexicana de Astronomía y Astrofísica. 22: 255–263. Bibcode:1991RMxAA..22..255A.
  24. ^ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
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