HD 167257

HD 167257 is a star in the constellation Telescopium, located about 359.2 light-years (110.1 parsecs) from Earth. It has an apparent magnitude of +6.06, allowing it to be viewed with the naked eye under suitable viewing conditions. The stellar classification is B9V, which indicates that it is a main sequence blue-white star. The effective temperature of its chromosphere is 11,000 K,.[2]

HD 167257
Observation data
Epoch J2000      Equinox
Constellation Telescopium
Right ascension 18h 17m 00.91889s[1]
Declination –51° 04 05.7601[1]
Apparent magnitude (V) 6.06[2]
Characteristics
Spectral type B9V[1][2]
B−V color index -0.06[3]
Astrometry
Radial velocity (Rv)-5.10[1] km/s
Proper motion (μ) RA: 0.66[1] mas/yr
Dec.: -9.25[1] mas/yr
Parallax (π)8.21 ± 0.47[1] mas
Distance400 ± 20 ly
(122 ± 7 pc)
Absolute magnitude (MV)0.848 [2]
Details
Mass3.3[2] M
Radius2.7[2] R
Temperature11,000[2] K
Other designations
HD 167257, HIP 89597, CD–51° 11460, HR 6821, SAO 245372[1]
Database references
SIMBADdata

It has an estimated lifespan of 490 million years and is three times the mass of the Sun. Its end state will probably be a carbon-oxygen white dwarf.[2]

References

  1. "hd167257", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2015-10-29
  2. hd167257 - Wolfram|Alpha, WolframAlpha, retrieved 2015-10-29
  3. Corben, P. M.; Stoy, R. H. (1968). "Photoelectric Magnitudes and Colours for Bright Southern Stars". Monthly Notes of the Astron. Soc. Southern Africa. 27: 11. Bibcode:1968MNSSA..27...11C. Color indices accessed using SIMBAD.


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