Kappa Aquarii information

κ Aquarii
	Location of κ Aquarii (circled)
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquarius
Right ascension	22h 37m 45.38049s
Declination	−04° 13′ 40.9939″
Apparent magnitude (V)	5.03
Characteristics
Spectral type	K2 III
U−B color index	+1.16
B−V color index	+1.142
Astrometry
Radial velocity (Rv)	+7.31 ± 0.16 km/s
Proper motion (μ)	RA: −69.23 mas/yr ; Dec.: −119.67 mas/yr
Parallax (π)	15.25 ± 0.21 mas
Distance	214 ± 3 ly ; (65.6 ± 0.9 pc)
Absolute magnitude (MV)	+0.96
Details
Radius	13 R☉
Luminosity	60 L☉
Surface gravity (log g)	2.5 cgs
Temperature	4,581 K
Metallicity [Fe/H]	+0.14 dex
Rotational velocity (v sin i)	3.8 km/s
Other designations
	Situla, 63 Aquarii, BD-04 5716, FK5 1595, HD 214376, HIP 111710, HR 8610, SAO 146210
Database references
SIMBAD	data

Kappa Aquarii (κ Aquarii, abbreviated Kappa Aqr, κ Aqr) is a probable binary star in the equatorial constellation of Aquarius. This system is visible to the naked eye, but it is faint at an apparent magnitude of 5.03.^[2] Based upon parallax measurements made during the Hipparcos mission, it is around 214 light-years (66 parsecs) from the Sun.^[2]

The two components are designated Kappa Aquarii A (formally named Situla /ˈsɪtjuːlə/, the traditional name for the system)^[7] and B.

^ ^a ^b ^c ^d ^e Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d Cite error: The named reference aass34_1 was invoked but never defined (see the help page).
^ Cite error: The named reference msom1962 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference aj135_1_209 was invoked but never defined (see the help page).
^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^ "Naming Stars". IAU.org. Retrieved 16 December 2017.

[aaa474_2_653-1] Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).

[aass34_1-2] Cite error: The named reference aass34_1 was invoked but never defined (see the help page).

[msom1962-3] Cite error: The named reference msom1962 was invoked but never defined (see the help page).

[aj135_1_209-4] ^ ^a ^b ^c ^d ^e ^f ^g ^h Cite error: The named reference aj135_1_209 was invoked but never defined (see the help page).

[Anderson2012-5] Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).

[SIMBAD-6] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[IAU-LSN-7] "Naming Stars". IAU.org. Retrieved 16 December 2017.

Observation data Epoch J2000 Equinox J2000
Location of κ Aquarii (circled)
Constellation	Aquarius
Right ascension	22^h 37^m 45.38049^s^[1]
Declination	−04° 13′ 40.9939″^[1]
Apparent magnitude (V)	5.03^[2]
Characteristics
Spectral type	K2 III^[3]
U−B color index	+1.16^[2]
B−V color index	+1.142^[4]
Astrometry

Radial velocity (R_v)	+7.31 ± 0.16^[4] km/s
Proper motion (μ)	RA: −69.23^[1] mas/yr Dec.: −119.67^[1] mas/yr
Parallax (π)	15.25 ± 0.21 mas^[1]
Distance	214 ± 3 ly (65.6 ± 0.9 pc)
Absolute magnitude (M_V)	+0.96^[5]

Details

Radius	13^[4] `R`_☉
Luminosity	60^[4] `L`_☉
Surface gravity (log g)	2.5^[4] cgs
Temperature	4,581^[4] K
Metallicity [Fe/H]	+0.14^[4] dex
Rotational velocity (v sin i)	3.8^[4] km/s

Other designations
Situla, 63 Aquarii, BD-04 5716, FK5 1595, HD 214376, HIP 111710, HR 8610, SAO 146210^[6]
Database references
SIMBAD	data

Kappa Aquarii information

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