GJ 1128

GJ 1128

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Carina
Right ascension	09^h 42^m 46.356^s
Declination	−68° 53′ 06.04″
Apparent magnitude (V)	12.78
Characteristics
Spectral type	M4.0V
Astrometry
Parallax (π)	154.27 ± 0.76[1] mas
Distance	21.1 ± 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
SIMBAD	data

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]

References

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.

• 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.

Notes