HD 88522

HD 88522
Observation data
Epoch J2000      Equinox J2000
Constellation Antlia
Right ascension 10h 12m 02.85179s[1]
Declination −28° 36′ 21.4485″[1]
Apparent magnitude (V) 6.28 (6.78 + 7.41)[2]
Characteristics
Spectral type A1 V (A1 V + A2 V)[2]
B−V color index 0.019±0.004[3]
Astrometry
Radial velocity (Rv)+27.4±0.4[4] km/s
Proper motion (μ) RA: −38.74[1] mas/yr
Dec.: −1.24[1] mas/yr
Parallax (π)6.55 ± 0.58 mas[1]
Distance500 ± 40 ly
(150 ± 10 pc)
Absolute magnitude (MV)0.86 + 1.49[2]
Orbit[5]
Period (P)91.89±0.85 yr
Semi-major axis (a)0.226±0.003″
Eccentricity (e)0.676±0.012
Inclination (i)76.0±0.7°
Longitude of the node (Ω)198.3±0.5°
Periastron epoch (T)2003.58±0.22
Argument of periastron (ω)
(secondary)		59.7±1.1°
Details
HD 88522 A
Mass2.53[2] M☉
Luminosity75.8+16.6
−13.6[6] L☉
Temperature9,638+134
−132[6] K
Rotational velocity (v sin i)24[6] km/s
HD 88522 B
Mass2.17[2] M☉
Other designations
CD−27° 7266, HD 88522, HIP 49967, HR 4003, SAO 178526, WDS J10120-2836AB[7]
Database references
SIMBADdata

HD 88522 is a double or multiple star. The component stars are two white stars of similar spectral type—A1V and A2V—and luminosity.[2]

  1. ^ a b c d e Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Cvetkovic2010 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Tokovinin2015 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Zorec2012 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).