HD 153221

Double star in the constellation Ara From Wikipedia, the free encyclopedia

HD 153221 is a double star in the southern constellation of Ara. As of 2012, the pair have an angular separation of 1.10 along a position angle of 172°.[4]

Right ascension17h 00m 26.95941s[2]
Declination−48° 38 51.9319[2]
Apparentmagnitude(V)6.00[3] (6.34 + 7.69)[4]
Quick facts Observation data Epoch J2000 Equinox J2000, Constellation ...
HD 153221
Observation data
Epoch J2000      Equinox J2000
Constellation Ara[1]
Right ascension 17h 00m 26.95941s[2]
Declination −48° 38 51.9319[2]
Apparent magnitude (V) 6.00[3] (6.34 + 7.69)[4]
Characteristics
Spectral type G8/K0 III + G[5]
B−V color index +0.88[3]
Astrometry
Radial velocity (Rv)−28.6[6] km/s
Proper motion (μ) RA: −17.93[2] mas/yr
Dec.: −80.49[2] mas/yr
Parallax (π)9.36±0.75 mas[2]
Distance350 ± 30 ly
(107 ± 9 pc)
Absolute magnitude (MV)+0.85[1]
Details
Luminosity49.5[7] L
Temperature4,993[7] K
Rotational velocity (v sin i)4.4[8] km/s
Other designations
CD−48°11360, HD 153221, HIP 83216, HR 6300, SAO 227542
Database references
SIMBADdata
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References

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