Iota Arae

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ι Arae
Location of ι Arae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 17h 23m 16.07624s[1]
Declination −47° 28′ 05.5057″[1]
Apparent magnitude (V) 5.18 - 5.26[2]
Characteristics
Spectral type B2 IIIne[3]
U−B color index −0.82[4]
B−V color index −0.11[4]
R−I color index −0.08
Variable type BE[2]
Distance
920 ± 20 ly
(281 ± 7 pc)
Absolute magnitude (MV)−2.06[6]
Details
Myr
HIP 85079, HR 6451, NSV 8566, SAO 227886.[9]
Database references
SIMBADdata

Iota Arae,

Bortle Dark-Sky Scale
, this means the star is visible to the naked eye from suburban skies.

This is an

absorption lines
to widen and become nebulous, as indicated by the 'n' notation in the stellar class.

A light curve for Iota Arae, plotted from TESS data[10]

Iota Arae has around 8.3 times the mass of the Sun and is shining brightly with 10,864 times the Sun's luminosity. This energy is being radiated into space from the

B-type star.[11]
The
General Catalog of Variable Stars classifies it as a BE variable star, ranging from visual magnitude 5.18 to 5.26 with a period of 13.36 hours.[2] In a study of the Hipparcos data, it was found to vary in brightness by 0.054 in magnitude with no clear period.[12]

References

  1. ^
    S2CID 244398875
    . Gaia DR3 record for this source at VizieR.
  2. ^
    Bibcode:2009yCat....102025S
    .
  3. ^
    doi:10.1086/150069
    .
  4. ^
    Bibcode:1985A&AS...61..387K
    .
  5. Bibcode:1967IAUS...30...57E
    .
  6. S2CID 119257644
    .
  7. ^
    S2CID 118629873
    .
  8. ^
    hdl:11336/37946
    .
  9. ^ "iot Ara". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-07-30.
  10. ^ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 8 December 2021.
  11. Commonwealth Scientific and Industrial Research Organisation. December 21, 2004. Archived from the original
    on February 22, 2012. Retrieved 2012-01-16.
  12. doi:10.1051/0004-6361/200912304
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Iota_Arae&oldid=1195776049"