HD 151967
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara[2] |
| Right ascension | Template:RA[3] |
| Declination | Template:DEC[3] |
| Apparent magnitude (V) | 5.92[4] |
| Characteristics | |
| Evolutionary stage | AGB[5] |
| Spectral type | M1III[6] |
| U−B Template:Engvar | +1.92[4] |
| B−V Template:Engvar | +1.60[4] |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | −40.7[7] km/s |
| Proper motion (μ) | RA: −40.18[3] mas/yr Dec.: −123.26[3] mas/yr |
| Parallax (π) | 4.60±0.47 mas[3] |
| Distance | approx. Template:Rnd ly (approx. Template:Rnd pc) |
| Absolute magnitude (MV) | −0.75[2] |
| Details | |
| Mass | 1.4[8] Template:Solar mass |
| Radius | 45[9] Template:Solar radius |
| Luminosity | 419[9] Template:Solar luminosity |
| Temperature | 3,886[9] K |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| CPD−57°8157, HD 151967, HR 6251, HIP 82672, SAO 244245 | |
| Database references | |
| SIMBAD | data |
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HD 151967 is suspected variable star in the southern constellation of Ara. It is a sixth magnitude star,[4] 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.[3]
This is a red giant with a stellar classification of M1III;[6] it has expanded to 53[10] times the radius of the Sun and radiates 637[11] times the Sun's luminosity. The star varies in brightness by an amplitude of 0.0156 in magnitude over a period of 26 days.[12] The effective temperature of the outer atmosphere is 3,839 K,[11] giving it the ruddy hue of an M-type star.[13]
References
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