IZ Aquarii

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IZ Aquarii

A light curve for IZ Aquarii, plotted from Hipparcos data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 21h 34m 42.768123s[2]
Declination +01° 49′ 44.95678″[2]
Apparent magnitude (V) 6.41[3] (6.23 - 6.47)[4]
Characteristics
Spectral type M4 III[5]
B−V color index 1.398±0.015[3]
Variable type irregular variable
Distance
940 ± 70 ly
(290 ± 20 pc)
Absolute magnitude (MV)−0.75[3]
Details[3]
Radius44.4 R☉
Luminosity390.92 L☉
Temperature3303 K
TYC 542-105-1, GSC 00542-00105, IRAS 21321+0136, 2MASS J21344276+0149447[6]
Database references
SIMBADdata

IZ Aquarii is a red giant star in the constellation Aquarius. It is a slow irregular variable that varies between magnitudes 6.23 and 6.47.[4]

References

  1. ^ "/ftp/cats/more/HIP/cdroms/cats". Centre de Données astronomiques de Strasbourg. Strasbourg astronomical Data Center. Retrieved 15 October 2022.
  2. ^
    doi:10.1051/0004-6361/201833051
    .
  3. ^
    S2CID 119257644
    .
  4. ^ a b Watson, Christopher (4 January 2010). "IZ Aquarii". The International Variable Star Index. American Association of Variable Star Observers. Retrieved 13 July 2015.
  5. Bibcode:1999MSS...C05....0H
    .
  6. ^ "HD 205358". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 August 2018.


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