29 Aquarii

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29 Aquarii

The light curve of 29 Aquarii, from Hipparcos data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 02m 26.24845s[2]
Declination −16° 57′ 53.3959″[2]
Apparent magnitude (V) 6.39[3]
Characteristics
Spectral type A2 V + K0 III[4]
B−V color index 0.447±0.022[3]
Distance
590 ± 10 ly
(180 ± 4 pc)
Semi-amplitude
(K1)
(primary)		97.9 km/s
HR 8396, SAO 164830, WDS J22024-1658[7]
Database references
SIMBADdata

29 Aquarii is a

apparent visual magnitude of 6.39.[3] The system is moving further from the Earth with a heliocentric radial velocity of about +15 km/s.[3]

This is a

A-type main sequence star with a stellar classification of A2 V. Its companion is giant star with a classification of K0 III.[4]

The variability of this system was first noticed in 1965 by W. Strohmeier of Remeis-Observatory in Bamberg, Germany.[9] He later discovered that the variability was caused by a binary companion eclipsing the primary star.[10]

References

  1. ^ Molik, Petr. "Eclipsing binary DX Aqr". Sun Hill Observatory. Retrieved 16 October 2021.
  2. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  3. ^
    S2CID 119257644
    .
  4. ^
    S2CID 17089387
    .
  5. S2CID 18759600
    .
  6. ^
    Bibcode:1976A&AS...24...29P
    .
  7. Centre de Données astronomiques de Strasbourg
    , retrieved 2012-07-16.
  8. S2CID 119453008
    .
  9. Bibcode:1965IBVS...81....1S
    .
  10. Bibcode:1966IBVS..164....1S. Archived from the original
    on August 18, 2013.

External links
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