Iota Lyrae

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Iota Lyrae

A light curve for Iota Lyrae, plotted from TESS data[1]
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation
Lyra
Right ascension 19h 07m 18.13251s[2]
Declination +36° 06′ 00.5592″[2]
Apparent magnitude (V) 5.22[3]
Characteristics
Spectral type B6IV[4]
Variable type Be star[5]
Distance
910 ± 50 ly
(280 ± 10 pc)
Absolute magnitude (MV)−1.94[7]
Argument of periastron
(ω)
(secondary)		201.2°
Details
Myr
HR 7262, SAO 67834, WDS 19073+3606, GSC 02652-01709[13]
Database references
SIMBADdata

ι Lyrae, Latinised as Iota Lyrae, is a

light years distant from the Sun based on parallax, but is drifting nearer with a radial velocity of −26 km/s.[6]

This is a wide binary system with a computed

Sun's luminosity from its photosphere at an effective temperature of 12,059 K
.

References

  1. ^ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 3 January 2023.
  2. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  3. ^
    S2CID 14878976
    .
  4. ^
    doi:10.1086/190179
    .
  5. ^
    S2CID 125853869
    .
  6. ^
    S2CID 119231169
    .
  7. S2CID 119257644
    .
  8. ^ a b "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 1 August 2017. Retrieved 15 March 2017.
  9. ^
    ISSN 0004-6361
    .
  10. ^
    ISSN 0035-8711
    .
  11. ^
    S2CID 55586789
    .
  12. S2CID 255201789
    .
  13. ^ "iot Lyr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-09-04.
  14. doi:10.1086/162490
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