Przybylski's Star

HD 101065

A blue band light curve for V816 Centauri, adapted from Kurtz and Wegner (1979)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 11h 37m 37.04096s[2]
Declination −46° 42′ 34.8779″[2]
Apparent magnitude (V) 7.996–8.020[3]
Characteristics
Spectral type F0, F5, or G0[4] (F3 Ho)[5]
U−B color index +0.20[6]
B−V color index +0.76[6]
Variable type roAp[3][7]
Astrometry
Radial velocity (Rv)+12.4±3[8] km/s
Proper motion (μ) RA: −46.783±0.015[2] mas/yr
Dec.: +34.193±0.018[2] mas/yr
Parallax (π)9.1496 ± 0.0213 mas[2]
Distance356.5 ± 0.8 ly
(109.3 ± 0.3 pc)
Details
Mass1.4[2] M☉
Radius1.90[9] R☉
Luminosity5.55[2] L☉
Surface gravity (log g)3.97[2] cgs
Temperature6,131[2] K
Metallicity [Fe/H]−2.40[10] dex
Rotation188 years[7]
Rotational velocity (v sin i)3.50[11] km/s
Age1.5±0.1[12] Gyr
Other designations
V816 Cen, CD−46°7232, HD 101065, HIP 56709, SAO 222918[13]
Database references
SIMBADdata

Przybylski's Star (pronounced /pʃɪˈbɪlskiːz/ or /ʃɪˈbɪlskiːz/), or HD 101065, is a rapidly oscillating Ap star at roughly 356 light-years (109 parsecs) from the Sun in the southern constellation of Centaurus. It has a unique spectrum showing over-abundances of most rare-earth elements, including some short-lived radioactive isotopes, but under-abundances of more common elements such as iron.

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  3. ^ a b Cite error: The named reference gcvs was invoked but never defined (see the help page).
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  5. ^ Cite error: The named reference renson was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference mnras177 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference hubrig was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference pulkovo was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference shulyak was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference mnras178_71 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference ghazaryan2018 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference mkrtichian was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).