LP 816-60

LP 816-60
Observation data; Epoch J2000 Equinox J2000
Constellation	Capricornus
Right ascension	20h 52m 33.01679s
Declination	−16° 58′ 29.0249″
Apparent magnitude (V)	11.458
Characteristics
Spectral type	M4
Astrometry
Radial velocity (Rv)	8.5 km/s
Proper motion (μ)	RA: -309.115 mas/yr ; Dec.: 37.051 mas/yr
Parallax (π)	177.9312 ± 0.0365 mas
Distance	18.330 ± 0.004 ly ; (5.620 ± 0.001 pc)
Details
Mass	0.224±0.022 M☉
Radius	0.266±0.012 R☉
Surface gravity (log g)	4.584 cgs
Temperature	3030±27 K
Metallicity [Fe/H]	-0.11±0.07 dex
Rotation	67.6±0.1 d.
Rotational velocity (v sin i)	2.70±0.66 km/s
Age	2.57+8.15; −1.95 Gyr
Other designations
	HIP 103039, LP 816-60, NLTT 50038, TYC 6348-400-1, 2MASS J20523304-1658289
Database references
SIMBAD	data
	LP 816-60 Location of LP 816-60 in the constellation Capricornus;

LP 816-60 is a single^[3] red dwarf star of spectral type M4, located in constellation Capricornus at 18.6 light-years from Earth.^[1]

^ ^a ^b ^c ^d Perryman; et al. (1997). "HIP 103039". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-29.
^ Cite error: The named reference Koen2010 was invoked but never defined (see the help page).
^ ^a ^b Montet, Benjamin T.; Crepp, Justin R.; Johnson, John Asher; Howard, Andrew W.; Marcy, Geoffrey W. (2013), "The Trends High-Contrast Imaging Survey. Iv. The Occurrence Rate of Giant Planets Around M Dwarfs", The Astrophysical Journal, 781: 28, arXiv:1307.5849, doi:10.1088/0004-637X/781/1/28, S2CID 26620552
^ Henry, Todd J.; Jao, Wei-Chun; Winters, Jennifer G.; Dieterich, Sergio B.; Finch, Charlie T.; Ianna, Philip A.; Riedel, Adric R.; Silverstein, Michele L.; Subasavage, John P.; Vrijmoet, Eliot Halley (2018), "The Solar Neighborhood XLIV: RECONS Discoveries within 10 parsecs", The Astronomical Journal, 155 (6): 265, arXiv:1804.07377, Bibcode:2018AJ....155..265H, doi:10.3847/1538-3881/aac262, S2CID 53983430
^ ^a ^b Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
^ Mann, Andrew W.; Feiden, Gregory A.; Gaidos, Eric; Boyajian, Tabetha; Braun, Kaspar von (2015), "How to Constrain Your M Dwarf: Measuring Effective Temperature, Bolometric Luminosity, Mass, and Radius", The Astrophysical Journal, 804 (1): 64, arXiv:1501.01635, Bibcode:2015ApJ...804...64M, doi:10.1088/0004-637X/804/1/64, S2CID 19269312
^ ^a ^b Hojjatpanah, S.; Figueira, P.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Delgado-Mena, E.; Alibert, Y.; Cristiani, S.; González Hernández, J. I.; Lanza, A. F.; Di Marcantonio, P.; Martins, J. H. C.; Micela, G.; Molaro, P.; Neves, V.; Oshagh, M.; Pepe, F.; Poretti, E.; Rojas-Ayala, B.; Rebolo, R.; Suárez Mascareño, A.; Zapatero Osorio, M. R. (2019), "Catalog for the ESPRESSO blind radial velocity exoplanet survey", Astronomy & Astrophysics, 629: A80, arXiv:1908.04627, Bibcode:2019A&A...629A..80H, doi:10.1051/0004-6361/201834729, S2CID 199552090
^ ^a ^b Antoniadis-Karnavas, A.; Sousa, S. G.; Delgado-Mena, E.; Santos, N. C.; Teixeira, G. D. C.; Neves, V. (2020), "ODUSSEAS: A machine learning tool to derive effective temperature and metallicity for M dwarf stars", Astronomy & Astrophysics, 636: A9, arXiv:2002.09367, Bibcode:2020A&A...636A...9A, doi:10.1051/0004-6361/201937194, S2CID 211252698
^ Cite error: The named reference Mascareno2016 was invoked but never defined (see the help page).
^ Luyten, Willem Jacob (1979). "NLTT 50038". NLTT Catalogue.
^ Perryman; et al. (1997). "HIP 103039". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-29.

[van_Leeuwen2007-1] Perryman; et al. (1997). "HIP 103039". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-29.

[Koen2010-2] Cite error: The named reference Koen2010 was invoked but never defined (see the help page).

[Montet2013-3] Montet, Benjamin T.; Crepp, Justin R.; Johnson, John Asher; Howard, Andrew W.; Marcy, Geoffrey W. (2013), "The Trends High-Contrast Imaging Survey. Iv. The Occurrence Rate of Giant Planets Around M Dwarfs", The Astrophysical Journal, 781: 28, arXiv:1307.5849, doi:10.1088/0004-637X/781/1/28, S2CID 26620552

[4] Henry, Todd J.; Jao, Wei-Chun; Winters, Jennifer G.; Dieterich, Sergio B.; Finch, Charlie T.; Ianna, Philip A.; Riedel, Adric R.; Silverstein, Michele L.; Subasavage, John P.; Vrijmoet, Eliot Halley (2018), "The Solar Neighborhood XLIV: RECONS Discoveries within 10 parsecs", The Astronomical Journal, 155 (6): 265, arXiv:1804.07377, Bibcode:2018AJ....155..265H, doi:10.3847/1538-3881/aac262, S2CID 53983430

[EDR3-5] Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.

[6] Mann, Andrew W.; Feiden, Gregory A.; Gaidos, Eric; Boyajian, Tabetha; Braun, Kaspar von (2015), "How to Constrain Your M Dwarf: Measuring Effective Temperature, Bolometric Luminosity, Mass, and Radius", The Astrophysical Journal, 804 (1): 64, arXiv:1501.01635, Bibcode:2015ApJ...804...64M, doi:10.1088/0004-637X/804/1/64, S2CID 19269312

[Hojjatpanah2019-7] Hojjatpanah, S.; Figueira, P.; Santos, N. C.; Adibekyan, V.; Sousa, S. G.; Delgado-Mena, E.; Alibert, Y.; Cristiani, S.; González Hernández, J. I.; Lanza, A. F.; Di Marcantonio, P.; Martins, J. H. C.; Micela, G.; Molaro, P.; Neves, V.; Oshagh, M.; Pepe, F.; Poretti, E.; Rojas-Ayala, B.; Rebolo, R.; Suárez Mascareño, A.; Zapatero Osorio, M. R. (2019), "Catalog for the ESPRESSO blind radial velocity exoplanet survey", Astronomy & Astrophysics, 629: A80, arXiv:1908.04627, Bibcode:2019A&A...629A..80H, doi:10.1051/0004-6361/201834729, S2CID 199552090

[Karnavas2020-8] Antoniadis-Karnavas, A.; Sousa, S. G.; Delgado-Mena, E.; Santos, N. C.; Teixeira, G. D. C.; Neves, V. (2020), "ODUSSEAS: A machine learning tool to derive effective temperature and metallicity for M dwarf stars", Astronomy & Astrophysics, 636: A9, arXiv:2002.09367, Bibcode:2020A&A...636A...9A, doi:10.1051/0004-6361/201937194, S2CID 211252698

[Mascareno2016-9] Cite error: The named reference Mascareno2016 was invoked but never defined (see the help page).

[Luyten1979_NLTT-10] Luyten, Willem Jacob (1979). "NLTT 50038". NLTT Catalogue.

[Perryman1997_tyc-11] Perryman; et al. (1997). "HIP 103039". The Hipparcos and Tycho Catalogues. Retrieved 2014-11-29.

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Observation data Epoch J2000 Equinox J2000
Constellation	Capricornus
Right ascension	20^h 52^m 33.01679^s^[1]
Declination	−16° 58′ 29.0249″^[1]
Apparent magnitude (V)	11.458^[2]
Characteristics
Spectral type	M4^[3]
Astrometry

Radial velocity (R_v)	8.5^[4] km/s
Proper motion (μ)	RA: -309.115 mas/yr^[5] Dec.: 37.051 mas/yr^[5]
Parallax (π)	177.9312 ± 0.0365 mas^[5]
Distance	18.330 ± 0.004 ly (5.620 ± 0.001 pc)

Details^[6]

Mass	0.224±0.022 `M`_☉
Radius	0.266±0.012 `R`_☉
Surface gravity (log g)	4.584^[7] cgs
Temperature	3030±27^[8] K
Metallicity [Fe/H]	-0.11±0.07^[8] dex
Rotation	67.6±0.1 d.^[9]
Rotational velocity (v sin i)	2.70±0.66^[7] km/s
Age	2.57^+8.15 _−1.95 Gyr

Other designations
HIP 103039^[1], LP 816-60, NLTT 50038^[10], TYC 6348-400-1^[11], 2MASS J20523304-1658289
Database references
SIMBAD	data
LP 816-60 Location of LP 816-60 in the constellation Capricornus