86 Aquarii

This article is about c1 Aquarii. For other star systems with this Bayer designation, see c Aquarii.
86 Aquarii
Diagram showing star positions and boundaries of the Aquarius constellation and its surroundings
Location of 86 Aquarii (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 23h 06m 40.84483s[1]
Declination –23° 44′ 35.2344″[1]
Apparent magnitude (V) +4.47[2]
Characteristics
Spectral type G8 III[3]
U−B color index +0.58[2]
B−V color index +0.90[2]
Astrometry
Radial velocity (Rv)+15.2[4] km/s
Proper motion (μ) RA: +58.86[1] mas/yr
Dec.: –1.74[1] mas/yr
Parallax (π)15.08 ± 0.72 mas[1]
Distance220 ± 10 ly
(66 ± 3 pc)
Details
Surface gravity (log g)3.10[5] cgs
Temperature4,900[5] K
Metallicity [Fe/H]–0.14[5] dex
Other designations
CD–24 17497, HD 218240, HIP 114119, HR 8789, SAO 191651.[6]
Database references
SIMBADdata

86 Aquarii (abbreviated 86 Aqr) is a binary star[7] system in the equatorial constellation of Aquarius. 86 Aquarii is the Flamsteed designation, though it also bears the Bayer designation c1 Aquarii. It is faint but visible to the naked eye with an apparent visual magnitude of +4.47.[2] Based upon parallax measurements, the distance to this star is about 220 light-years (67 parsecs).[1]

The two components of this system have an angular separation of 0.25 arcseconds.[7] The brighter component is a giant star with a spectral classification of G8 III[3] and an apparent magnitude of 4.79.[7] The effective temperature of its outer atmosphere is 4,900 K,[5] giving it the yellowish glow of a G-type star.[8] The fainter component is a star of magnitude 6.77.[7]

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  7. ^ a b c d Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
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