70 Aquilae

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70 Aquilae
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 20h 36m 43.63394s[1]
Declination −02° 32′ 59.8341″[1]
Apparent magnitude (V) 4.903[2]
Characteristics
Spectral type K4+ III Ba1,[3] K3 III,[4] or K5 II[5]
B−V color index 1.606±0.041[6]
Distance
940 ± 90 ly
(290 ± 30 pc)
Absolute magnitude (MV)−3.05[6]
Details
Myr
HR 7873, SAO 144624[12]
Database references
SIMBADdata

70 Aquilae, abbreviated 70 Aql, is a single

light years. The star is moving closer to the Earth with a heliocentric radial velocity of −9 km/s.[7]

Classification

Perkins et al. (1989) found a

bright giant star
.

Size and temperature

The

Sun's luminosity from its enlarged photosphere at an effective temperature of 3,900 K.[2]

References

  1. ^
    doi:10.1051/0004-6361/201833051
    .
  2. ^
    S2CID 111387483
    .
  3. ^
    doi:10.1086/191373
    .
  4. ^
    Bibcode:1999MSS...C05....0H
    .
  5. ^
    Bibcode:1964cbs..book.....H
  6. ^
    S2CID 119257644
    .
  7. ^
    S2CID 119231169
    .
  8. ^
    S2CID 118629873
    .
  9. ^
    ISBN 3-540-29692-1
    . The radius (R*) is given by:
  10. ^
    doi:10.1051/0004-6361:20042476
    .
  11. doi:10.1051/aas:1999153
    .
  12. ^ "69 Aql". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved November 1, 2018.
  13. ^
    S2CID 14878976
    .
  14. ^
    Bibcode:1997A&A...319..881G
    .
  15. doi:10.1051/0004-6361:20042039
    .
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