IQ Aurigae

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IQ Aurigae

A light curve for IQ Aurigae from BRITE nanosatellites. Plotted from data published by Strassmeier et al. (2020),[1] assuming a period of 2.463 days.
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 05h 19m 00.02846s[2]
Declination +33° 44′ 54.2208″[2]
Apparent magnitude (V) 5.38[3]
Characteristics
Evolutionary stage main sequence[4]
Spectral type A0pSi[5]
U−B color index −0.62[6]
B−V color index −0.167±0.004[3]
Variable type α2 CVn[7]
Distance
462 ± 7 ly
(142 ± 2 pc)
Absolute magnitude (MV)−0.42[9]
Details
Myr
HR 1732, SAO 57884[11]
Database references
SIMBADdata

IQ Aurigae is a (most likely) single,

apparent visual magnitude that fluctuates around 5.38.[3] The star is located at a distance of about 460 light-years from the Sun based on parallax and is drifting further away with a radial velocity of +28.6 km/s.[8]

This is a magnetic

rotationally-modulated period of 2.4660 days.[7] It is an X-ray source with a high luminosity of 4×1029 erg s−1, which may be caused by a combination of shocks in the stellar wind and magnetic reconnection occurring well above the stellar surface. The star has been observed to flare, during which the X-ray emission rose to 3.2×1031 erg s−1.[4]

IQ Aurigae is 6.3

luminosity of the Sun from its active photosphere at an effective temperature of 14,454 K.[9]

References

  1. S2CID 224803974
    .
  2. ^
    S2CID 244398875
    . Gaia DR3 record for this source at VizieR.
  3. ^
    S2CID 119257644
    .
  4. ^
    S2CID 119245911
    , A58.
  5. doi:10.1086/110819
    .
  6. Bibcode:1986EgUBV........0M
    .
  7. ^
    S2CID 125853869
    .
  8. ^
    S2CID 119231169
    .
  9. ^
    Bibcode:1998A&A...334..181N
    .
  10. ^
    Bibcode:1970A&A.....9..380T
    .
  11. ^ "IQ Aur". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-17.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=IQ_Aurigae&oldid=1193617785"