HD 84117

HD 84117
Observation data; Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Hydra
Right ascension	09h 42m 14.4168s
Declination	−23° 54′ 56.048″
Apparent magnitude (V)	4.94
Characteristics
Spectral type	F8V
U−B color index	0.00
B−V color index	+0.53
R−I color index	+0.28
Astrometry
Radial velocity (Rv)	33.8 ± 0.9 km/s
Proper motion (μ)	RA: −399.21 mas/yr ; Dec.: 263.17 mas/yr
Parallax (π)	67.19 ± 0.73 mas
Distance	48.5 ± 0.5 ly ; (14.9 ± 0.2 pc)
Absolute magnitude (MV)	4.05
Details
Mass	1.09 (1.04 to 1.16) M☉
Radius	1.1 R☉
Temperature	6100 K
Metallicity	−0.12 dex
Rotational velocity (v sin i)	6 km/s
Age	3.1 (2.2 to 4.4) Gyr
Other designations
	CD−23 8646, CPD−23 4656, GC 13394, GJ 364, HIP 47592, HR 3862, LTT 3558, NLTT 22406, PPM 256602, SAO 177866.
Database references
SIMBAD	data

HD 84117 is a F-type main sequence star in the constellation of Hydra.^[1] It has an apparent visual magnitude of approximately 4.94.^[1]

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k "HD 84117". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved January 20, 2011.
^ ^a ^b ^c HR 3862, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line January 20, 2011.
^ 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, S2CID 119257644.
^ ^a ^b ^c ^d ^e HD 84117, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line January 20, 2011.
^ HD 84117, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line January 20, 2011.

Zdroj:https://en.wikipedia.org?pojem=HD_84117
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[sb0-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k "HD 84117". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved January 20, 2011.

[bsc1-2] HR 3862, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line January 20, 2011.

[Anderson2012-3] 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, S2CID 119257644.

[geneva2-4] HD 84117, database entry, The Geneva-Copenhagen Survey of Solar neighbourhood, J. Holmberg et al., 2007, CDS ID V/117A. Accessed on line January 20, 2011.

[cadars3-5] HD 84117, database entry, Catalog of Apparent Diameters and Absolute Radii of Stars (CADARS), 3rd edition, L. E. Pasinetti-Fracassini, L. Pastori, S. Covino, and A. Pozzi, CDS ID II/224. Accessed on line January 20, 2011.

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Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Hydra
Right ascension	09^h 42^m 14.4168^s^[1]
Declination	−23° 54′ 56.048″^[1]
Apparent magnitude (V)	4.94^[1]
Characteristics
Spectral type	F8V^[1]
U−B color index	0.00^[2]
B−V color index	+0.53^[2]
R−I color index	+0.28^[2]
Astrometry

Radial velocity (R_v)	33.8 ± 0.9^[1] km/s
Proper motion (μ)	RA: −399.21^[1] mas/yr Dec.: 263.17^[1] mas/yr
Parallax (π)	67.19 ± 0.73 mas^[1]
Distance	48.5 ± 0.5 ly (14.9 ± 0.2 pc)
Absolute magnitude (M_V)	4.05^[3]

Details

Mass	1.09 (1.04 to 1.16)^[4] `M`_☉
Radius	1.1^[5] `R`_☉
Temperature	6100^[4] K
Metallicity	−0.12^[4] dex
Rotational velocity (v sin i)	6^[4] km/s
Age	3.1 (2.2 to 4.4)^[4] Gyr

Other designations
CD−23 8646, CPD−23 4656, GC 13394, GJ 364, HIP 47592, HR 3862, LTT 3558, NLTT 22406, PPM 256602, SAO 177866.^[1]
Database references
SIMBAD	data