Back Skat (ster) Afrikaans الساق (نجم) Arabic Skat (estrella) AST Skat Catalan Delta Aquarii German Skat (estrella) Spanish دلتا دلو Persian Delta Aquarii French Delta Aquarii ID Skat Italian

Delta Aquarii

δ Aquarii
Location of δ Aquarii (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 54m 39.0125s[1]
Declination −15° 49′ 14.953″[1]
Apparent magnitude (V) 3.28[2]
Characteristics
Spectral type A3Vp[3]
U−B color index +0.08[4]
B−V color index +0.05[4]
Astrometry
Radial velocity (Rv)+18.0[5] km/s
Proper motion (μ) RA: -38.904[6] mas/yr
Dec.: -33.027[6] mas/yr
Parallax (π)28.7936 ± 0.7289 mas[6]
Distance113 ± 3 ly
(34.7 ± 0.9 pc)
Absolute magnitude (MV)−0.17[7]
Details
Mass2.51[8] M☉
Radius2.4[9] R☉
Luminosity48[6] L☉
Surface gravity (log g)3.73[10] cgs
Temperature8,650[11] K
Metallicity [Fe/H]–0.21[12] dex
Rotational velocity (v sin i)81[13] km/s
Age0.3[14] Gyr
Other designations
Skat, Scheat, 76 Aquarii, BD-16 6173, FK5 866, HD 216627, HIP 113136, HR 8709, SAO 165375.[15]
Database references
SIMBADdata

Delta Aquarii (δ Aquarii, abbreviated Delta Aqr, δ Aqr), officially named Skat /ˈskæt/,[16] is the third-brightest star in the constellation of Aquarius. The apparent visual magnitude is 3.3,[17] which can be seen with the naked eye. The distance to this star is about 113 light-years (35 parsecs) based upon parallax measurements, and it has a close companion.

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  16. ^ "Naming Stars". IAU.org. Retrieved 18 June 2018.
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