8 Aquarii

Star in the constellation Aquarius From Wikipedia, the free encyclopedia

8 Aquarii (abbreviated 8 Aqr) is a blue-white sub-giant of the spectral class A4IV in the constellation Aquarius. 8 Aquarii is the Flamsteed designation. It is approximately 298 light-years away from Earth, based on parallax.[1] It is approximately 1.7 solar masses and about 3 times hotter than the Sun and thus allows lines of ionized metals with an abundance of metals.[citation needed]

Quick facts Observation data Epoch J2000 Equinox J2000, Constellation ...
8 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 20h 59m 54.826s[1]
Declination −13° 03 05.87[1]
Apparent magnitude (V) 6.60[2]
Characteristics
Spectral type A3/4 IV[3]
B−V color index 0.177±0.007[4]
Astrometry
Proper motion (μ) RA: −31.787 mas/yr[1]
Dec.: −6.566 mas/yr[1]
Parallax (π)10.9478±0.1472 mas[1]
Distance298 ± 4 ly
(91 ± 1 pc)
Absolute magnitude (MV)1.91[4]
Details
Mass1.9[5] M
Radius2.27[5] R
Luminosity19[5] L
Surface gravity (log g)4.06[6] cgs
Temperature8,008[5] K
Metallicity [Fe/H]0.11[6] dex
Other designations
BD13°5813, HD 199828, HIP 103640, SAO 164046[7]
Database references
SIMBADdata
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References

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