HD 151967

HD 151967

A light curve for HD 151967, plotted from Hipparcos data.[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 16h 54m 00.36029s[2]
Declination −57° 54′ 34.2317″[2]
Apparent magnitude (V) 5.92[3]
Characteristics
Spectral type M1III[4]
U−B color index +1.92[3]
B−V color index +1.60[3]
Variable type Suspected
Astrometry
Radial velocity (Rv)-40.7[5] km/s
Proper motion (μ) RA: -40.18[2] mas/yr
Dec.: -123.26[2] mas/yr
Parallax (π)4.60 ± 0.47 mas[2]
Distanceapprox. 710 ly
(approx. 220 pc)
Details
Radius53[6] R☉
Luminosity637[7] L☉
Temperature3,839[7] K
Other designations
CPD−57° 8157, HD 151967, HR 6251, HIP 82672, SAO 244245.
Database references
SIMBADdata

HD 151967 is suspected variable star in the southern constellation of Ara. It is a sixth magnitude star,[3] which means it is just visible to the naked eye in dark skies. Parallax measurements place it at a distance of approximately 710 light years from the Earth.[2]

This is a red giant with a stellar classification of M1III;[4] it has expanded to 53[6] times the radius of the Sun and radiates 637[7] times the Sun's luminosity. The star varies in brightness by an amplitude of 0.0156 in magnitude over a period of 26 days.[8] The effective temperature of the outer atmosphere is 3,839 K,[7] giving it the ruddy hue of an M-type star.[9]

  1. ^ Cite error: The named reference HIPCurve was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference MERMILLIOD was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference rgcrv was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference cadars was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference Mcdonald2012 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Koen2002 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).