HAT-P-19

HAT-P-19
Observation data; Epoch J2000 Equinox J2000
Constellation	Andromeda
Right ascension	00h 38m 04.0136s
Declination	+34° 42′ 41.554″
Apparent magnitude (V)	12.901
Characteristics
Spectral type	K1V
Astrometry
Radial velocity (Rv)	−20.27 km/s
Proper motion (μ)	RA: −26.745(11) mas/yr ; Dec.: −32.568(10) mas/yr
Parallax (π)	4.9567 ± 0.0137 mas
Distance	658 ± 2 ly ; (201.7 ± 0.6 pc)
Details
Mass	0.863+0.029; −0.025 M☉
Radius	0.851±0.013 R☉
Luminosity	0.37+0.08; −0.06 L☉
Surface gravity (log g)	4.514+0.019; −0.017 cgs
Temperature	5049+42; −65 K
Metallicity	0.283+0.081; −0.079
Rotation	14.66±0.03 d
Rotational velocity (v sin i)	0.7±0.5 km/s
Age	8.8±5.2 Gyr
Other designations
	Gaia DR2 3654266795168165128, 2MASS J00380401+3442416
Database references
SIMBAD	data

HAT-P-19 is a K-type main-sequence star about 658 light-years away. The star is old yet metal enriched, having amount of heavy elements 250% of solar abundance.^[4] The survey in 2012 have failed to find any stellar companions to HAT-P-19.^[6]

^ ^a ^b ^c ^d Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
^ Cite error: The named reference Hartman2010 was invoked but never defined (see the help page).
^ Cite error: The named reference Wang2021 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e Everett, Mark E.; Howell, Steve B.; Silva, David R.; Szkody, Paula (2013), "Spectroscopy of Faint Kepler Mission Exoplanet Candidate Host Stars", The Astrophysical Journal, 771 (2): 107, arXiv:1305.0578, Bibcode:2013ApJ...771..107E, doi:10.1088/0004-637X/771/2/107, S2CID 119270620
^ Cite error: The named reference simbad was invoked but never defined (see the help page).
^ Ginski, C.; Mugrauer, M.; Seeliger, M.; Eisenbeiss, T. (2012), "A lucky imaging multiplicity study of exoplanet host stars", Monthly Notices of the Royal Astronomical Society, 421 (3): 2498–2509, arXiv:1202.4586, Bibcode:2012MNRAS.421.2498G, doi:10.1111/j.1365-2966.2012.20485.x, S2CID 118573795

[Gaia_DR3-1] Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).

[Hartman2010-2] Cite error: The named reference Hartman2010 was invoked but never defined (see the help page).

[Wang2021-3] Cite error: The named reference Wang2021 was invoked but never defined (see the help page).

[Everett2013-4] Everett, Mark E.; Howell, Steve B.; Silva, David R.; Szkody, Paula (2013), "Spectroscopy of Faint Kepler Mission Exoplanet Candidate Host Stars", The Astrophysical Journal, 771 (2): 107, arXiv:1305.0578, Bibcode:2013ApJ...771..107E, doi:10.1088/0004-637X/771/2/107, S2CID 119270620

[simbad-5] Cite error: The named reference simbad was invoked but never defined (see the help page).

[6] Ginski, C.; Mugrauer, M.; Seeliger, M.; Eisenbeiss, T. (2012), "A lucky imaging multiplicity study of exoplanet host stars", Monthly Notices of the Royal Astronomical Society, 421 (3): 2498–2509, arXiv:1202.4586, Bibcode:2012MNRAS.421.2498G, doi:10.1111/j.1365-2966.2012.20485.x, S2CID 118573795

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Observation data Epoch J2000 Equinox J2000
Constellation	Andromeda
Right ascension	00^h 38^m 04.0136^s^[1]
Declination	+34° 42′ 41.554″^[1]
Apparent magnitude (V)	12.901^[2]
Characteristics
Spectral type	K1V
Astrometry

Radial velocity (R_v)	−20.27 km/s
Proper motion (μ)	RA: −26.745(11) mas/yr^[1] Dec.: −32.568(10) mas/yr^[1]
Parallax (π)	4.9567 ± 0.0137 mas^[1]
Distance	658 ± 2 ly (201.7 ± 0.6 pc)

Details^[3]

Mass	0.863^+0.029 _−0.025 `M`_☉
Radius	0.851±0.013 `R`_☉
Luminosity	0.37^+0.08 _−0.06^[4] `L`_☉
Surface gravity (log g)	4.514^+0.019 _−0.017 cgs
Temperature	5049⁺⁴² ₋₆₅ K
Metallicity	0.283^+0.081 _−0.079
Rotation	14.66±0.03 d^[4]
Rotational velocity (v sin i)	0.7±0.5^[4] km/s
Age	8.8±5.2^[4] Gyr

Other designations
Gaia DR2 3654266795168165128, 2MASS J00380401+3442416^[5]
Database references
SIMBAD	data