HD 219134

HD 219134

Star HD 219134 (circled) lies just off the "W" shape of the constellation Cassiopeia.
Observation data
Epoch J2000      Equinox J2000
Constellation Cassiopeia
Right ascension 23h 13m 16.97496s[1]
Declination +57° 10′ 06.0838″[1]
Apparent magnitude (V) 5.574[2]
Characteristics
Spectral type K3V[3]
U−B color index +0.902[2]
B−V color index +0.983[2]
Variable type Suspected[4]
Astrometry
Radial velocity (Rv)−18.68±0.12[1] km/s
Proper motion (μ) RA: 2074.414 mas/yr[1]
Dec.: 294.452 mas/yr[1]
Parallax (π)152.8640 ± 0.0494 mas[1]
Distance21.336 ± 0.007 ly
(6.542 ± 0.002 pc)
Absolute magnitude (MV)6.46[5]
Details
Mass0.81±0.03[6] M
Radius0.778±0.005[6] R
Luminosity0.2646[6] L
Surface gravity (log g)4.567±0.018[6] cgs
Temperature4699[6] K
Metallicity [Fe/H]+0.11 (± 0.04)[6] dex
Rotational velocity (v sin i)6.94[7] km/s
Age11.0[6] Gyr
Other designations
BD+56 2966, FK5 875, GCTP 5616.00, Gl 892, HD 219134, HIP 114622, HR 8832, LFT 1767, LHS 71, LTT 16826, SAO 35236.[8]
Database references
SIMBADdata

HD 219134 (also known as Gliese 892 or HR 8832) is a main-sequence star in the constellation of Cassiopeia. It is smaller and less luminous than the Sun, with a spectral class of K3V, which makes it an orange-hued star. HD 219134 is relatively close to our system, with an estimated distance of 21.34 light years. This star is close to the limit of apparent magnitude that can still be seen by the unaided eye. The limit is considered to be magnitude 6 for most observers. This star has a magnitude 9.4 optical companion at an angular separation of 106.6 arcseconds.[9]

  1. ^ a b c d e Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference aaass65_2_405 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference aaa508_3_1313 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference csvs was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Holmberg2009 was invoked but never defined (see the help page).
  6. ^ a b c d e f g "HD 219134". exoplanetarchive.ipac.caltech.edu. Retrieved 2017-12-24.
  7. ^ Cite error: The named reference aaa520_A79 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).

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