HD 92063

HD 92063
	; Carina Nebula with HD 92603 near the right edge of the frame
Observation data; Epoch J2000 Equinox J2000
Constellation	Carina
Right ascension	10h 36m 20.51819s
Declination	−59° 33′ 51.8102″
Apparent magnitude (V)	5.08
Characteristics
Spectral type	K1III
B−V color index	1.172±0.005
Variable type	suspected
Astrometry
Radial velocity (Rv)	−10.15±0.19 km/s
Proper motion (μ)	RA: −40.984±0.229 mas/yr ; Dec.: −39.180±0.226 mas/yr
Parallax (π)	13.2367 ± 0.1354 mas
Distance	246 ± 3 ly ; (75.5 ± 0.8 pc)
Absolute magnitude (MV)	0.55
Details
Mass	1.2 M☉
Radius	13.85+0.26; −1.17 R☉
Luminosity	72.1±0.9 L☉
Surface gravity (log g)	2.25 cgs
Temperature	4,520+204; −41 K
Metallicity [Fe/H]	+0.02 dex
Rotational velocity (v sin i)	<1.2 km/s
Other designations
	t1 Car, NSV 4909, CPD−58°2371, GC 14594, HD 92063, HIP 51912, HR 4164, SAO 238242
Database references
SIMBAD	data

HD 92063 is a single^[8] star in the southern constellation of Carina. It has the Bayer designation t¹ Carinae, while HD 92063 is the star's identifier from the Henry Draper Catalogue. This is a suspected variable star^[4] and is visible to the naked eye with an apparent visual magnitude of 5.08.^[2] The star is located at a distance of approximately 246 light years from the Sun based on parallax, but is drifting closer with a radial velocity of −10 km/s.^[1] Although it appears at the edge of the Carina Nebula, it is much closer than the nebula. It is also not considered a member of the nearby Alessi 5 open cluster of stars.^[9]

This is an aging K-type giant star with a stellar classification of K1III,^[3] having exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence. At present it has 14^[1] times the radius of the Sun. The star is radiating 72^[1] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,520 K.^[1]

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference gcvs was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference starhorse was invoked but never defined (see the help page).
^ Cite error: The named reference deMedeiros2014 was invoked but never defined (see the help page).
^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
^ Cite error: The named reference Cantat-Gaudin2018 was invoked but never defined (see the help page).

Observation data Epoch J2000 Equinox J2000
Carina Nebula with HD 92603 near the right edge of the frame
Constellation	Carina
Right ascension	10^h 36^m 20.51819^s^[1]
Declination	−59° 33′ 51.8102″^[1]
Apparent magnitude (V)	5.08^[2]
Characteristics
Spectral type	K1III^[3]
B−V color index	1.172±0.005^[2]
Variable type	suspected^[4]
Astrometry

Radial velocity (R_v)	−10.15±0.19^[1] km/s
Proper motion (μ)	RA: −40.984±0.229^[1] mas/yr Dec.: −39.180±0.226^[1] mas/yr
Parallax (π)	13.2367 ± 0.1354 mas^[1]
Distance	246 ± 3 ly (75.5 ± 0.8 pc)
Absolute magnitude (M_V)	0.55^[2]

Details

Mass	1.2^[5] `M`_☉
Radius	13.85+0.26 −1.17^[1] `R`_☉
Luminosity	72.1±0.9^[1] `L`_☉
Surface gravity (log g)	2.25^[5] cgs
Temperature	4,520+204 −41^[1] K
Metallicity [Fe/H]	+0.02^[5] dex
Rotational velocity (v sin i)	<1.2^[6] km/s

Other designations
t¹ Car, NSV 4909, CPD−58°2371, GC 14594, HD 92063, HIP 51912, HR 4164, SAO 238242^[7]
Database references
SIMBAD	data