GJ 1128

GJ 1128
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Carina
Right ascension 09h 42m 46.356s
Declination −68° 53′ 06.04″
Apparent magnitude (V) 12.78
Characteristics
Spectral type M4.0V
Astrometry
Parallax (π)154.27 ± 0.76[1] mas
Distance21.1 ± 0.1 ly
(6.48 ± 0.03 pc)
Other designations
L 100-115
LTT 3572
LFT 680
NLTT 22480[2]
LHS 271[3]
GJ 1128[4]
GSC 09209-00444
DENIS J094246.3-685309
2MASS J09424635-6853060
Database references
SIMBADdata

GJ 1128 is a red dwarf star of spectral type M4.0V, located in constellation Carina around 20 light-years away from Earth.[5]

History of observations

The discovery designation of GJ 1128 is L 100-115,[6] related to time period 1942—1944.[7]

Distance

GJ 1128 distance estimates

Source Parallax, mas Distance, pc Distance, ly Distance, Pm Ref.
Jao et al. (2005) 153.05±2.41 6.53±0.1 21.3±0.3 201.6+3.2
−3.1		 [8]
RECONS TOP100 (2012) 153.05±2.41[nb 1] 6.53±0.1 21.3±0.3 201.6+3.2
−3.1		 [9]
Lurie et al. (2014) 154.27±0.76 6.48±0.03 21.14±0.1 200±1 [1]

Non-trigonometric distance estimates are marked in italic. The most precise estimate is marked in bold.

References

  1. ↑ 1.0 1.1 Lurie, John C.; Henry, Todd J.; Jao, Wei-Chun; Quinn, Samuel N.; Winters, Jennifer G.; Ianna, Philip A.; Koerner, David W.; Riedel, Adric R.; Subasavage, John P. (2014). "The Solar Neighborhood. XXXIV. a Search for Planets Orbiting Nearby M Dwarfs Using Astrometry". The Astronomical Journal 148 (5): 91. arXiv:1407.4820. Bibcode:2014AJ....148...91L. doi:10.1088/0004-6256/148/5/91.
  2. ↑ Luyten, Willem Jacob (1979). "NLTT 22480". NLTT Catalogue.
  3. ↑ Luyten, Willem Jacob (1979). "LHS 271". LHS Catalogue, 2nd Edition.
  4. ↑ Gliese, W. and Jahreiß, H. (1991). "GJ 1128". Preliminary Version of the Third Catalogue of Nearby Stars.
  5. ↑ "GJ 1128".
  6. ↑ Kirkpatrick, J. D.; Gelino, C. R.; Cushing, M. C.; Mace, G. N.; Griffith, R. L.; Skrutskie, M. F.; Marsh, K. A.; Wright, E. L.; Eisenhardt, P. R.; McLean, I. S.; Mainzer, A. K.; Burgasser, A. J.; Tinney, C. G.; Parker, S.; Salter, G. (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. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156.
  7. ↑ Dictionary of Nomenclature of Celestial Objects. L entry. SIMBAD. Centre de Données astronomiques de Strasbourg.
  8. ↑ Jao, Wei-Chun; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Ianna, Philip A.; Bartlett, Jennifer L.; Costa, Edgardo; Méndez, René A. (2005). "The Solar Neighborhood. XIII. Parallax Results from the CTIOPI 0.9 Meter Program: Stars with mu >= 1.0" yr-1 (MOTION Sample)". The Astronomical Journal 129 (4): 1954–1967. arXiv:astro-ph/0502167. Bibcode:2005AJ....129.1954J. doi:10.1086/428489.
  9. ↑ "RECONS TOP100". THE ONE HUNDRED NEAREST STAR SYSTEMS brought to you by RECONS (Research Consortium On Nearby Stars). 2012.

Notes

  1. ↑ Parallax from Jao et al. (2005).