QQ Telescopii

Source: Wikipedia, the free encyclopedia.
QQ Telescopii
Location of QQ Telescopii (circled)
Observation data
ICRS
)
Constellation Telescopium
Right ascension 19h 39m 41.77938s[1]
Declination −45° 16′ 42.7871″[1]
Apparent magnitude (V) 6.25[2]
Characteristics
Spectral type F2 IV[3] or F0 III:[4]
B−V color index +0.28[2]
Variable type δ Scuti[5]
Distance
333 ± 1 ly
(102.0 ± 0.3 pc)
Absolute magnitude (MV)+1.01[7]
Details
Myr
HR 7461, SAO 229800[15]
Database references
SIMBADdata

QQ Telescopii, also known as HD 185139 or simply QQ Tel, is a solitary

light years[1] and it is currently receding with a heliocentric radial velocity of 7.8 km/s.[6] At its current distance, QQ Telescopii's brightness is diminished by two tenths of a magnitude due to interstellar dust[16] and it has an absolute magnitude of +1.01.[7]

A light curve for QQ Telescopii, plotted from TESS data[17]

HD 185139 was discovered to be a

hours.[5]

QQ Telescopii has a

luminosity class. Evolutionary models place it very close to the end of its main sequence life.[1]

With 1.68 times the

projected rotational velocity of 45 km/s.[13]

References

  1. ^
    S2CID 244398875
    . Gaia DR3 record for this source at VizieR.
  2. ^
    S2CID 118307502
    .
  3. ^
    Bibcode:1978mcts.book.....H
    .
  4. ^
    ISSN 1169-8837
    .
  5. ^
    S2CID 125853869
    .
  6. ^
    S2CID 119231169
    .
  7. ^
    S2CID 119257644
    .
  8. ^
    S2CID 253194905
    .
  9. ^
    S2CID 6077801
    .
  10. S2CID 13365201
    .
  11. ^
    S2CID 166227927
    .
  12. ^
    S2CID 54666586
    .
  13. ^
    S2CID 121946206
    .
  14. Bibcode:1879RNAO....1.....G
    .
  15. ^ "V* QQ Tel". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved March 24, 2023.
  16. S2CID 118879856
    .
  17. ^ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 29 March 2023.
  18. S2CID 120991196
    .
  19. ISSN 0374-0676
    .
  20. Bibcode:1953AnHar.119....1H
    .
  21. ISSN 0365-0138
    .
  22. S2CID 55849045
    .
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