HD 97413

HD 97413
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 11h 12m 10.18976s[1]
Declination −46° 16′ 00.3202″[1]
Apparent magnitude (V) 6.27±0.01[2]
Characteristics
Spectral type A1 V[3]
U−B color index +0.04[4]
B−V color index +0.15[4]
Astrometry
Proper motion (μ) RA: −46.711 mas/yr[1]
Dec.: +9.593 mas/yr[1]
Parallax (π)10.1866 ± 0.155 mas[1]
Distance320 ± 5 ly
(98 ± 1 pc)
Absolute magnitude (MV)+1.5[5]
Details
A
Mass1.94±0.11[6] M☉
Radius2.18+0.05
−0.08[7] R☉
Luminosity19.6[8] L☉
Surface gravity (log g)4.07±0.05[6] cgs
Temperature7,800[8] K
Metallicity [Fe/H]−0.29[9] dex
Other designations
CD−45°6771, CPD−45°5279, GC 15400, HD 97413, HIP 57418, SAO 222635, WDS J11122-4616AB[10]
Database references
SIMBADdata

HD 97413 is a binary star located in the southern constellation Centaurus. The system has a combined magnitude of 6.27,[2] placing it near the limit for naked eye visibility. Based on parallax measurements from the Gaia spacecraft, the system is located 320 light years away from the Solar System.[1]

The objects binarity was detected in a Hipparcos survey. The two components can't be distinguished because both stars have an angular separation of 0.01″.[11] Nevertheless, speckle interferometry revealed the components to have a 2.6 magnitude difference.[12] They are located along a position angle of 250°.[11]

The visible component – HD 97413 A – has a stellar classification of A1 V, indicating that it is an ordinary A-type main-sequence star. It has 1.94 times the mass of the Sun[6] and a radius of 2.18 R☉.[7] It radiates 19.6 times the luminosity of the Sun[8] from its photosphere at an effective temperature of 7,800 K,[8] giving it a white hue. However, this is not typical for an A1 star. Parameters determined by Gaia's extinction reveal HD 97413 A to have an iron abundance half of the Sun's,[9] making it metal deficient.

  1. ^ a b c d e Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Houk1978 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Slawson1992 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference AP1999 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference TIC was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference McDonald2012 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Anders2019 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Mason2001 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Tokovinin2019 was invoked but never defined (see the help page).