Astronomy:GJ 1128
From HandWiki
Short description: Star in the southern constellation of Carina
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Carina |
| Right ascension | 09h 42m 46.3420s[1] |
| Declination | −68° 53′ 06.004″[1] |
| Apparent magnitude (V) | 12.78[2] |
| Characteristics | |
| Spectral type | M4.0V[3] |
| Astrometry | |
| Proper motion (μ) | RA: −75.523[1] mas/yr Dec.: 1128.513[1] mas/yr |
| Parallax (π) | 153.7593 ± 0.0249[4] mas |
| Distance | 21.212 ± 0.003 ly (6.504 ± 0.001 pc) |
| Absolute magnitude (MV) | 13.715[2] |
| Details | |
| Mass | 0.175[5] M☉ |
| Radius | 0.190[2] R☉ |
| Luminosity | 0.0043[6] L☉ |
| Surface gravity (log g) | 5.03[6] cgs |
| Temperature | 3144[2] K |
| Metallicity [Fe/H] | 0.09[2] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
GJ 1128 is a red dwarf star of spectral type M4.0V, located in constellation Carina 21 light-years away from Earth. It is one of the closer stars to the Sun.
History of observations
The discovery designation of GJ 1128 is L 100-115,[10] related to time period 1942–1944.[11] The small distance from Sun to the GJ 1128 was recognized in 2005.[12]
Physical properties
GJ 1128 is a long-term variable with the prominent 5-year starspot cycle comparable to that of Sun`s.[12]
References
- ↑ 1.0 1.1 1.2 1.3 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 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.
- ↑ Lurie, John C.; Henry, Todd J.; Jao, Wei-Chun; Quinn, Samuel N.; Winters, Jennifer G.; Ianna, Philip A.; Koerner, David W.; Riedel, Adric R. et al. (2014). "The Solar Neighborhood. XXXIV. a Search for Planets Orbiting Nearby M Dwarfs Using Astrometry". The Astronomical Journal 148 (5): 91. doi:10.1088/0004-6256/148/5/91. Bibcode: 2014AJ....148...91L.
- ↑ Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
- ↑ Klüter, J.; Bastian, U.; Wambsganss, J. (2020). "Expectations on mass determination using astrometric microlensing by Gaia". Astronomy and Astrophysics 640: A83. doi:10.1051/0004-6361/201937061. Bibcode: 2020A&A...640A..83K.
- ↑ 6.0 6.1 Stassun, Keivan G.; Oelkers, Ryan J.; Pepper, Joshua; Paegert, Martin; De Lee, Nathan; Torres, Guillermo; Latham, David W.; Charpinet, Stéphane et al. (2018). "The TESS Input Catalog and Candidate Target List". The Astronomical Journal 156 (3): 102. doi:10.3847/1538-3881/aad050. Bibcode: 2018AJ....156..102S.
- ↑ "GJ 1128". Preliminary Version of the Third Catalogue of Nearby Stars. 1991. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=V/70A&Name=GJ%201128.
- ↑ Luyten, Willem Jacob (1979). "LHS 271". LHS Catalogue, 2nd Edition. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/87B&LHS=271.
- ↑ Luyten, Willem Jacob (1979). "NLTT 22480". NLTT Catalogue. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-source=I/98A&recno=22480.
- ↑ 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.
- ↑ Dictionary of Nomenclature of Celestial Objects. L entry. SIMBAD. Centre de Données astronomiques de Strasbourg.
- ↑ 12.0 12.1 Henry, Todd J.; Jao, Wei-Chun; Winters, Jennifer G.; Dieterich, Sergio B.; Finch, Charlie T.; Ianna, Philip A.; Riedel, Adric R.; Silverstein, Michele L. et al. (2018). "The Solar Neighborhood XLIV: RECONS Discoveries within 10 parsecs". The Astronomical Journal 155 (6): 265. doi:10.3847/1538-3881/aac262. Bibcode: 2018AJ....155..265H.
 |  |
