28 Aquarii

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28 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 01m 05.0152s
Declination +00° 36' 16.975"
Apparent magnitude (V) 5.606
Spectral type K4III
U−B color index +1.40
B−V color index +1.28
Variable type None
Radial velocity (Rv) +6.7±2 km/s
Proper motion (μ) RA: 7.14 mas/yr
Dec.: -11.60 mas/yr
Parallax (π) 4.93 ± 0.83 mas
Distance approx. 700 ly
(approx. 200 pc)
Absolute magnitude (MV) 6.906
Surface gravity (log g) 2.18 cgs
Temperature 4260 K
Metallicity Z=-0.16
Other designations
HD 209128, HR 8390, SAO 127235, HIP 108691, BD -00 4296, HIC 108691
Database references

28 Aquarii (abbreviated 28 Aqr) is an orange giant star in the constellation of Aquarius. 28 Aquarii is the Flamsteed designation. It is approximately 700 lys away from Earth. It has less metallicity than the Sun, suggesting that it is older than the Sun.

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