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{{Short description|Star in the constellation Eridanus}}
{{Starbox begin}}
{{Starbox begin}}
{{Starbox observe
{{Starbox observe
| epoch = [[J2000.0]]
| epoch = [[J2000.0]]
| constell = [[Eridanus (constellation)|Eridanus]]
| constell = [[Eridanus (constellation)|Eridanus]]
| ra = {{RA|03|38|15.69810}}<ref name=GaiaDR2/>
| ra = {{RA|03|38|15.69799}}<ref name=GaiaDR3/>
| dec = {{DEC|−11|29|13.5013}}<ref name=GaiaDR2/>
| dec = {{DEC|−11|29|13.5050}}<ref name=GaiaDR3/>
| appmag_v = +13.010<ref name=Houdebine2010/>
| appmag_v = +13.010<ref name=Houdebine2010/>
}}
}}
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}}
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v = {{val|−84.50|0.63}}<ref name=GaiaDR2/>
| radial_v = {{val|−84.88|0.56}}<ref name=GaiaDR3/>
| prop_mo_ra = 1,458.094<ref name=GaiaDR2/>
| prop_mo_ra = {{val|1458.201|fmt=commas}}
| prop_mo_dec = −2,696.796<ref name=GaiaDR2/>
| prop_mo_dec = {{val|−2696.545|fmt=commas}}
⚫
| pm_footnote = <ref name=GaiaDR3/>
⚫
| parallax = 61.8726
| p_error = 0.0499
| parallax = 61.8861
⚫
| p_error = 0.0220
⚫
| parallax_footnote = <ref name=GaiaDR2/>
| parallax_footnote = <ref name=GaiaDR3/>
| absmag_v = 10.608<ref name=Houdebine_et_al_2016/>
| absmag_v = 10.608<ref name=Houdebine_et_al_2016/>
}}
}}
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{{Starbox end}}
{{Starbox end}}


'''Gliese 1062''' (often GJ 1062) is a single<ref name=Winters_et_al_2019/> [[red dwarf]] [[star]] in the [[constellation]] [[Eridanus (constellation)|Eridanus]], positioned about two degrees to the SSE of [[Epsilon Eridani]].<ref name=Sinnott_Perryman_1997/> It is also known as [[Luyten Half-Second catalogue|LHS]] 20 and [[Frank Elmore Ross|Ross]] 578. The star is invisible to the naked eye with an [[apparent visual magnitude]] of +13.0,<ref name=Houdebine2010/> requiring a telescope with at least a {{convert|25|cm|in|0|abbr=on}} [[aperture]] to view.<ref name=ICQ/> It is located at a distance of 52.7&nbsp;[[light year]]s from the [[Sun]] based on [[stellar parallax|parallax]], but is drifting closer with a [[radial velocity]] of −85&nbsp;km/s.<ref name=GaiaDR2/> The star has a high [[proper motion]], traversing the sky at the rate of {{val|3.033|ul=arcseconds}} per year.<ref name=Luyten1995/>
'''GJ 1062''' is a single<ref name=Winters_et_al_2019/> [[red dwarf]] [[star]] in the [[constellation]] [[Eridanus (constellation)|Eridanus]], positioned about two degrees to the SSE of [[Epsilon Eridani]].<ref name=Sinnott_Perryman_1997/> It is also known as [[Luyten Half-Second catalogue|LHS]] 20 and [[Frank Elmore Ross|Ross]] 578. The star is invisible to the naked eye with an [[apparent visual magnitude]] of +13.0,<ref name=Houdebine2010/> requiring a telescope with at least a {{convert|25|cm|in|0|abbr=on}} [[aperture]] to view.<ref name=ICQ/> It is located at a distance of 52.7&nbsp;[[light year]]s from the [[Sun]] based on [[stellar parallax|parallax]], but is drifting closer with a [[radial velocity]] of −85&nbsp;km/s.<ref name=GaiaDR3/> The star has a high [[proper motion]], traversing the sky at the rate of {{val|3.033|ul=arcseconds}} per year.<ref name=Luyten1995/>


This is an [[M-type star|M-type]] [[subdwarf]] star with a [[stellar classification]] of M2.5VI.<ref name=Gizis1977/> It was one of the first three subdwarfs to be definitively identified by [[Gerard Kuiper|G. Kuiper]] in 1940, the other two being [[Kapteyn's Star]] and [[Wolf 1106]].<ref name=Kotoneva_et_al_2005/> GJ 1062 is considered a likely member of the [[galactic halo|halo]] population, and thus is a [[MACHO]].<ref name=Fuchs_Jahreiß_1998/>
This is an [[M-type star|M-type]] [[subdwarf]] star with a [[stellar classification]] of M2.5VI.<ref name=Gizis1977/> It was one of the first three subdwarfs to be definitively identified by [[Gerard Kuiper|G. Kuiper]] in 1940, the other two being [[Kapteyn's Star]] and [[Wolf 1106]].<ref name=Kotoneva_et_al_2005/> GJ 1062 is considered a likely member of the [[galactic halo|halo]] population, and thus is a [[MACHO]].<ref name=Fuchs_Jahreiß_1998/>
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{{reflist|refs=
{{reflist|refs=


<ref name=GaiaDR2>{{Cite Gaia DR2|5115463180914712448}}</ref>
<ref name=GaiaDR3>{{Cite Gaia DR3|5115463180914712448}}</ref>


<ref name="SIMBAD">{{cite simbad | title=GJ 1062 | access-date=4 December 2016}}</ref>
<ref name="SIMBAD">{{cite simbad | title=GJ 1062 | access-date=4 December 2016}}</ref>
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| volume=822 | issue=2 | id=97 | pages=38 | date=May 2016
| volume=822 | issue=2 | id=97 | pages=38 | date=May 2016
| arxiv=1604.07920 | bibcode=2016ApJ...822...97H
| arxiv=1604.07920 | bibcode=2016ApJ...822...97H
| doi=10.3847/0004-637X/822/2/97 }}</ref>
| doi=10.3847/0004-637X/822/2/97 | s2cid=119118088 | doi-access=free }}</ref>


<ref name=Luyten1995>{{cite book
<ref name=Luyten1995>{{cite journal
| work=VizieR Online Data Catalog
| journal=VizieR Online Data Catalog
| title=NLTT Catalogue | date=June 1995
| title=NLTT Catalogue | date=June 1995
| last=Luyten | first=W. J.
| last=Luyten | first=W. J.
Line 98: Line 100:
| volume=157 | issue=6 | id=216 | pages=32 | date=June 2019
| volume=157 | issue=6 | id=216 | pages=32 | date=June 2019
| arxiv=1901.06364 | bibcode=2019AJ....157..216W
| arxiv=1901.06364 | bibcode=2019AJ....157..216W
| doi=10.3847/1538-3881/ab05dc }}</ref>
| doi=10.3847/1538-3881/ab05dc | s2cid=86859146 | doi-access=free }}</ref>


<ref name=Gizis1977>{{cite journal
<ref name=Gizis1977>{{cite journal
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| volume=157 | issue=2 | id=63 | pages=17 | date=February 2019
| volume=157 | issue=2 | id=63 | pages=17 | date=February 2019
| arxiv=1810.07702 | bibcode=2019AJ....157...63K
| arxiv=1810.07702 | bibcode=2019AJ....157...63K
| doi=10.3847/1538-3881/aae982 }}</ref>
| doi=10.3847/1538-3881/aae982 | s2cid=119325209 | doi-access=free }}</ref>


<ref name=Kotoneva_et_al_2005>{{cite journal
<ref name=Kotoneva_et_al_2005>{{cite journal
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| journal=Astronomy and Astrophysics
| journal=Astronomy and Astrophysics
| volume=438 | issue=3 | date=August 2005 | pages=957–962
| volume=438 | issue=3 | date=August 2005 | pages=957–962
| doi=10.1051/0004-6361:20042287 | bibcode=2005A&A...438..957K }}</ref>
| doi=10.1051/0004-6361:20042287 | bibcode=2005A&A...438..957K | doi-access=free }}</ref>


}}
}}
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[[Category:Eridanus (constellation)]]
[[Category:Eridanus (constellation)]]
[[Category:Gliese and GJ objects|1062]]
[[Category:Gliese and GJ objects|1062]]
[[Category:2MASS objects]]
[[Category:Ross objects|578]]
[[Category:2MASS objects|J03381558-1129102]]
[[Category:TIC objects|38403917]]

Latest revision as of 09:46, 25 September 2023

GJ 1062
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Eridanus
Right ascension 03h 38m 15.69799s[1]
Declination −11° 29′ 13.5050″[1]
Apparent magnitude (V) +13.010[2]
Characteristics
Spectral type M2.5VI[3]
U−B color index +1.385[4]
B−V color index +1.605[4]
R−I color index 1.184[2]
Astrometry
Radial velocity (Rv)−84.88±0.56[1] km/s
Proper motion (μ) RA: 1,458.201 mas/yr[1]
Dec.: −2,696.545 mas/yr[1]
Parallax (π)61.8861 ± 0.0220 mas[1]
Distance52.70 ± 0.02 ly
(16.159 ± 0.006 pc)
Absolute magnitude (MV)10.608[5]
Details
Mass0.255[6] M☉
Radius0.411±0.051 R☉[2]
0.372±0.076 R☉[5]
0.202±0.012[7] R☉
Luminosity0.0055[2] L☉
Temperature3,488±50[2] K
Metallicity [Fe/H]−0.28±0.15[7] dex
Rotational velocity (v sin i)9.80[2] km/s
Other designations
GJ 1062, LHS 20, LTT 1717, Ross 578, 2MASS J03381558-1129102[8]
Database references
SIMBADdata
ARICNSdata

GJ 1062 is a single[6] red dwarf star in the constellation Eridanus, positioned about two degrees to the SSE of Epsilon Eridani.[9] It is also known as LHS 20 and Ross 578. The star is invisible to the naked eye with an apparent visual magnitude of +13.0,[2] requiring a telescope with at least a 25 cm (10 in) aperture to view.[10] It is located at a distance of 52.7 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −85 km/s.[1] The star has a high proper motion, traversing the sky at the rate of 3.033 arcseconds per year.[11]

This is an M-type subdwarf star with a stellar classification of M2.5VI.[3] It was one of the first three subdwarfs to be definitively identified by G. Kuiper in 1940, the other two being Kapteyn's Star and Wolf 1106.[12] GJ 1062 is considered a likely member of the halo population, and thus is a MACHO.[13]

References

[edit]
  1. ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c d e f g Houdebine, E. R. (2010). "Observation and modelling of main-sequence star chromospheres - XIV. Rotation of dM1 stars". Monthly Notices of the Royal Astronomical Society. 407 (3): 1657. Bibcode:2010MNRAS.407.1657H. doi:10.1111/j.1365-2966.2010.16827.x.
  3. ^ a b Gizis, John E. (1997). "M-Subdwarfs: Spectroscopic Classification and the Metallicity Scale". Astronomical Journal. 113: 806–822. arXiv:astro-ph/9611222. Bibcode:1997AJ....113..806G. doi:10.1086/118302. S2CID 16863021.
  4. ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode:1986EgUBV........0M.
  5. ^ a b Houdebine, E. R.; et al. (May 2016). "Rotation-Activity Correlations in K and M Dwarfs. I. Stellar Parameters and Compilations of v sin I and P/sin I for a Large Sample of Late-K and M Dwarfs". The Astrophysical Journal. 822 (2): 38. arXiv:1604.07920. Bibcode:2016ApJ...822...97H. doi:10.3847/0004-637X/822/2/97. S2CID 119118088. 97.
  6. ^ a b Winters, Jennifer G.; et al. (June 2019). "The Solar Neighborhood. XLV. The Stellar Multiplicity Rate of M Dwarfs Within 25 pc". The Astronomical Journal. 157 (6): 32. arXiv:1901.06364. Bibcode:2019AJ....157..216W. doi:10.3847/1538-3881/ab05dc. S2CID 86859146. 216.
  7. ^ a b Kesseli, Aurora Y.; et al. (February 2019). "Radii of 88 M Subdwarfs and Updated Radius Relations for Low-metallicity M-dwarf Stars". The Astronomical Journal. 157 (2): 17. arXiv:1810.07702. Bibcode:2019AJ....157...63K. doi:10.3847/1538-3881/aae982. S2CID 119325209. 63.
  8. ^ "GJ 1062". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 4 December 2016.
  9. ^ Sinnott, Roger W.; Perryman, Michael A. C. (1997). Millennium Star Atlas. Vol. 1. Sky Publishing Corporation and the European Space Agency. p. 308. ISBN 0-933346-84-0.
  10. ^ "The astronomical magnitude scale". International Comet Quarterly. Retrieved 2020-12-31.
  11. ^ Luyten, W. J. (June 1995). "NLTT Catalogue". VizieR Online Data Catalog. Bibcode:1995yCat.1098....0L.
  12. ^ Kotoneva, E.; et al. (August 2005). "A study of Kapteyn's star". Astronomy and Astrophysics. 438 (3): 957–962. Bibcode:2005A&A...438..957K. doi:10.1051/0004-6361:20042287.
  13. ^ Fuchs, B.; Jahreiß, H. (January 1998). "Halo stars in the immediate solar neighbourhood". Astronomy and Astrophysics. 329: 81. arXiv:astro-ph/9708209. Bibcode:1998A&A...329...81F.
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