Astronomy:Gliese 205

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Short description: Nearby red dwarf star in the constellation Orion

Coordinates: Sky map 05h 31m 27.39578s, −03° 40′ 38.0240″

Gliese 205
Gliese 205 is located in the constellation Orion
Gliese 205 is located in the constellation Orion
Gliese 205
Location of Gliese 205 in the constellation Orion

Observation data
Equinox J2000.0]] (ICRS)
Constellation Orion
Right ascension  05h 31m 27.39578s[1]
Declination −03° 40′ 38.0240″[1]
Apparent magnitude (V) 7.932[2]
Characteristics
Evolutionary stage Red dwarf
Spectral type M1.5V[3]
Astrometry
Radial velocity (Rv)8.26[1] km/s
Proper motion (μ) RA: 761.631[1] mas/yr
Dec.: −2092.209[1] mas/yr
Parallax (π)175.3131 ± 0.0204[1] mas
Distance18.604 ± 0.002 ly
(5.7041 ± 0.0007 pc)
Absolute magnitude (MV)9.188[4]
Details[5]
Mass0.549±0.029 M☉
Radius0.556±0.033 R☉
Luminosity0.061±0.006 L☉
Surface gravity (log g)4.70±0.1 cgs
Temperature3,770±30 K
Metallicity [Fe/H]+0.21±0.06 dex
Rotation34.4±0.5 d
Rotational velocity (v sin i)0.7±0.1 km/s
Age3.6+5.0
−1.7 Gyr
Other designations
BD−03°1123,[6] GJ 205,[7] HD 36395,[8] HIP 25878,[9] LHS 30,[10] SAO 132211,[11] Wolf 1453,[12] W. B. V. 592[13][14], Weisse I, 5h 592, [15][16][14] Strb. 1611[17][18], Cin. 705[19], Ci 20=334[20], G 99-15, LFT 416, LTT 2293, NLTT 15215[21] PLX 1255,[22] TYC 4770-574-1,[23] 2MASS J05312734-0340356
Database references
SIMBADdata

Gliese 205 is a nearby red dwarf star of spectral type M1.5, located in the constellation Orion at a distance of 18.6 light-years (5.7 parsecs) from Earth.[1]

History of observations

A designation of this star, used in "Discovery Name" column of Table 4 of Kirkpatrick et al. (2012), is Strb. 1611.[17] This name was taken from van de Kamp (1930)[18]. The origin of this designation is not explained in these articles. Anyway, it is not Struve's 1827 catalogue of binary stars, since for this catalogue another prefix ("Σ") is used, for example, "Σ 2398",[17][18] and real Σ 1611 is located in completely different part of the sky.[24] 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 "5h" sections was listed,[25] 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 (AGK),[25] 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, 5h 592 (Maximiliano Weisse; Friedrich Bessel, Positiones mediae stellarum fixarum I, 1846).[14] 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).[26]

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.[27] However, a study of this star in 2023 found no evidence of planets, and determined a stellar rotation period of 34.4 days.[5]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  2. ↑ Mann, Andrew W.; Feiden, Gregory A.; Gaidos, Eric; Boyajian, Tabetha; von Braun, Kaspar (2015). "How to Constrain Your M Dwarf: Measuring Effective Temperature, Bolometric Luminosity, Mass, and Radius". The Astrophysical Journal 804 (1): 64. doi:10.1088/0004-637X/804/1/64. Bibcode: 2015ApJ...804...64M. 
  3. ↑ Jenkins, J. S.; Ramsey, L. W.; Jones, H. R. A.; Pavlenko, Y.; Gallardo, J.; Barnes, J. R.; Pinfield, D. J.; Laughlin, G. et al. (2009). "Rotational Velocities for M Dwarfs". The Astrophysical Journal 704 (2): 975. doi:10.1088/0004-637X/704/2/975. Bibcode: 2009ApJ...704..975J. 
  4. ↑ Houdebine, Éric R.; Mullan, D. J.; Doyle, J. G.; de la Vieuville, Geoffroy; Butler, C. J.; Paletou, F. (2019). "The Mass-Activity Relationships in M and K Dwarfs. I. Stellar Parameters of Our Sample of M and K Dwarfs". The Astronomical Journal 158 (2): 56. doi:10.3847/1538-3881/ab23fe. Bibcode: 2019AJ....158...56H. 
  5. ↑ 5.0 5.1 Cortes-Zuleta, P. et al. (May 2023). "Optical and near-infrared stellar activity characterization of the early M dwarf Gl 205 with SOPHIE and SPIRou". Astronomy & Astrophysics 673: A14. doi:10.1051/0004-6361/202245131. Bibcode: 2023A&A...673A..14C. 
  6. ↑ Schönfeld, Eduard (1886). "BD -3 1123". Southern Durchmusterung. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/119&zone=-3&num=1123. 
  7. ↑ "Gl 205". Preliminary Version of the Third Catalogue of Nearby Stars. 1991. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=V/70A&Name=Gl%20205. 
  8. ↑ Cannon, Annie Jump (1918–1924). "HD 36395". Henry Draper Catalogue and Extension. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=III/135A&HD=36395. 
  9. ↑ Perryman (1997). "HIP 25878". The Hipparcos and Tycho Catalogues. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/239/hip_main&HIP=25878. 
  10. ↑ Luyten, Willem Jacob (1979). "LHS 30". LHS Catalogue, 2nd Edition. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/87B&LHS=30. 
  11. ↑ SAO Staff (1966). "SAO 132211". SAO Star Catalog J2000. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/131A&SAO=132211. 
  12. ↑ Wolf, M. (1924). "Einige starker bewegte Sterne beim Orionnebel". Astronomische Nachrichten 222 (15): 253–256. doi:10.1002/asna.19242221505. Bibcode: 1924AN....222..253W. 
  13. ↑ Comstock, G. C. (1897). "Research work at the Washburn Observatory. Stellar parallax, the lunar atmosphere, the ocular heliometer". The Astrophysical Journal 6: 419. doi:10.1086/140424. Bibcode: 1897ApJ.....6..419C. 
  14. ↑ 14.0 14.1 14.2 Weisse, Maximiliano; Bessel, Friedrich (1846). "Positiones mediae stellarum fixarum inter −15° et +15° declinationis ex zonis regiomontanis". Petropoli. Typis academiae scientarum. Google Books id: UBTnAAAAMAAJ. Page 50 (W. B. V. 592)
  15. ↑ Schlesinger, F. (1911). "Photographic determinations of stellar parallax made with the Yerkes refractor. IV". The Astrophysical Journal 33: 234. doi:10.1086/141853. Bibcode: 1911ApJ....33..234S. 
  16. ↑ Schlesinger, F. (1911). "Photographic determinations of stellar parallax made with the Yerkes refractor. VII". The Astrophysical Journal 34: 26. doi:10.1086/141869. Bibcode: 1911ApJ....34...26S. 
  17. ↑ 17.0 17.1 17.2 Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L. et al. (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal 753 (2): 156. doi:10.1088/0004-637X/753/2/156. Bibcode: 2012ApJ...753..156K. 
  18. ↑ 18.0 18.1 18.2 van de Kamp, P. (1930). "List of stars nearer than five parsecs". Popular Astronomy 38: 17. Bibcode: 1930PA.....38...17V. 
  19. ↑ Adams, W. S.; Joy, A. H.; Humason, M. L. (1926). "The absolute magnitudes and parallaxes of 410 stars of type M". The Astrophysical Journal 64: 225. doi:10.1086/143007. Bibcode: 1926ApJ....64..225A. 
  20. ↑ Porter, J. G.; Yowell, E. J.; Smith, E. S. (1930). "A catalogue of 1474 stars with proper motion exceeding four-tenths year.". Publications of the Cincinnati Observatory 20: 1–32. Bibcode: 1930PCinO..20....1P. 
  21. ↑ Luyten, Willem Jacob (1979). "NLTT 15215". NLTT Catalogue. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/98A&recno=15215. 
  22. ↑ "GCTP 1255". The General Catalogue of Trigonometric Stellar Parallaxes. 1995. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/238A/picat&GCTP=1255. 
  23. ↑ Perryman (1997). "HIP 25878". The Hipparcos and Tycho Catalogues. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/239/tyc_main&HIP=25878. 
  24. ↑ Page 41 (Σ 1611)
  25. ↑ 25.0 25.1 Cohn, M. (1926). "Deuxième Partie. Mémoires. Les Mouvements Propres des Étoiles du Catalouge A. G. De Strasbourg". Annales de l'Observatoire de Strasbourg 1: 187. Bibcode: 1926AnOSt...1..187C. 
  26. ↑ "Astronomische Beobachtungen auf der königlichen Universitäts-Sternwarte in Königsberg". 9—12. (1824–1827). Königsberg, Universitäts-Buchhandlung. Google Books id: f9RUAAAAcAAJ. Page 55
  27. ↑ Barnes, J. R.; et al. (2019-06-11). "Frequency of planets orbiting M dwarfs in the Solar neighbourhood". arXiv:1906.04644 [astro-ph.EP].



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