HD 199442

HD 199442
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquarius
Right ascension	20h 57m 10.57748s
Declination	+00° 27′ 49.6076″
Apparent magnitude (V)	6.065
Characteristics
Evolutionary stage	red giant branch
Spectral type	K2III
U−B color index	+1.29
B−V color index	+1.22
Astrometry
Radial velocity (Rv)	−26.47 km/s
Proper motion (μ)	RA: +12.078 mas/yr ; Dec.: −62.766 mas/yr
Parallax (π)	10.0850±0.0398 mas
Distance	323 ± 1 ly ; (99.2 ± 0.4 pc)
Absolute magnitude (MV)	+1.2
Details
Mass	1.4 M☉
Radius	11.5 R☉
Luminosity	48 L☉
Surface gravity (log g)	2.44 cgs
Temperature	4,625 K
Metallicity [Fe/H]	0.01 dex
Rotational velocity (v sin i)	2.7 km/s
Age	4.5 Gyr
Other designations
	ADS 14457 A, BD−00°4132, HIP 103414, HR 8017, SAO 126396
Database references
SIMBAD	data

HD 199442 is a giant star situated in the Aquarius constellation. It is located about 323 light years from the Solar System.

References

^ ^a ^b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
^ ^a ^b ^c Luck, R. Earle; Heiter, Ulrike (June 2007). "Giants in the Local Region". The Astronomical Journal. 133 (6): 2464–2486. Bibcode:2007AJ....133.2464L. doi:10.1086/513194.
^ ^a ^b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. SIMBAD. Bibcode:1986EgUBV........0M.
^ ^a ^b ^c ^d Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G.; Valentini, M.; Torralba Elipe, G.; Steinmetz, M.; Pantaleoni-González, M.; Malhotra, S.; Jiménez-Arranz, Ó.; Enke, H.; Casamiquela, L.; Ardèvol, J. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics. 691: A98. arXiv:2407.06963. Bibcode:2024A&A...691A..98K. doi:10.1051/0004-6361/202451427.
^ Massarotti, Alessandro; et al. (January 2008). "Rotational and radial velocities for a sample of 761 HIPPARCOS giants and the role of binarity". The Astronomical Journal. 135 (1): 209–231. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209. S2CID 121883397.

External links

Image HD 199442

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[xhip-1] Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.

[dr3-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.

[aj133_6_2464-3] Luck, R. Earle; Heiter, Ulrike (June 2007). "Giants in the Local Region". The Astronomical Journal. 133 (6): 2464–2486. Bibcode:2007AJ....133.2464L. doi:10.1086/513194.

[MERMILLIOD-4] Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. SIMBAD. Bibcode:1986EgUBV........0M.

[khalatyan2024-5] Khalatyan, A.; Anders, F.; Chiappini, C.; Queiroz, A. B. A.; Nepal, S.; Dal Ponte, M.; Jordi, C.; Guiglion, G.; Valentini, M.; Torralba Elipe, G.; Steinmetz, M.; Pantaleoni-González, M.; Malhotra, S.; Jiménez-Arranz, Ó.; Enke, H.; Casamiquela, L.; Ardèvol, J. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics. 691: A98. arXiv:2407.06963. Bibcode:2024A&A...691A..98K. doi:10.1051/0004-6361/202451427.

[aj135_1_209-6] Massarotti, Alessandro; et al. (January 2008). "Rotational and radial velocities for a sample of 761 HIPPARCOS giants and the role of binarity". The Astronomical Journal. 135 (1): 209–231. Bibcode:2008AJ....135..209M. doi:10.1088/0004-6256/135/1/209. S2CID 121883397.

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Observation data Epoch J2000 Equinox J2000
Constellation	Aquarius^[1]
Right ascension	20^h 57^m 10.57748^s^[2]
Declination	+00° 27′ 49.6076″^[2]
Apparent magnitude (V)	6.065^[3]
Characteristics
Evolutionary stage	red giant branch^[2]
Spectral type	K2III^[3]
U−B color index	+1.29^[4]
B−V color index	+1.22^[4]
Astrometry

Radial velocity (R_v)	−26.47^[3] km/s
Proper motion (μ)	RA: +12.078^[2] mas/yr Dec.: −62.766^[2] mas/yr
Parallax (π)	10.0850±0.0398 mas^[2]
Distance	323 ± 1 ly (99.2 ± 0.4 pc)
Absolute magnitude (M_V)	+1.2^[1]

Details

Mass	1.4^[5] `M`_☉
Radius	11.5^[2] `R`_☉
Luminosity	48^[2] `L`_☉
Surface gravity (log g)	2.44^[5] cgs
Temperature	4,625^[5] K
Metallicity [Fe/H]	0.01^[5] dex
Rotational velocity (v sin i)	2.7^[6] km/s
Age	4.5^[2] Gyr

Other designations
ADS 14457 A, BD−00°4132, HIP 103414, HR 8017, SAO 126396
Database references
SIMBAD	data