70 Aquilae

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]
Astrometry
Radial velocity (Rv)−9.4±0.4[7] km/s
Proper motion (μ) RA: +10.124[1] mas/yr
Dec.: –15.604[1] mas/yr
Parallax (π)3.4533 ± 0.3160 mas[1]
Distance940 ± 90 ly
(290 ± 30 pc)
Absolute magnitude (MV)−3.05[6]
Details
Mass6.2±0.6[8] M☉
Radius102[9] R☉
Luminosity (bolometric)4,072[2] L☉
Surface gravity (log g)1.9[10] cgs
Temperature3,900[2] K
Metallicity [Fe/H]−0.294±0.093[11] dex
Rotational velocity (v sin i)1.9[10] km/s
Age63.1±17.8[8] Myr
Other designations
70 Aql, BD−03° 496, FK5 3648, HD 196321, HIP 101692, HR 7873, SAO 144624[12]
Database references
SIMBADdata

70 Aquilae, abbreviated 70 Aql, is a single[13] orange-hued star in the equatorial constellation of Aquila. 70 Aquilae is its Flamsteed designation. It is visible to the naked eye with an apparent visual magnitude of 4.90.[2] The distance to 70 Aquilae, as determined from its annual parallax shift of 3.5 mas,[1] is around 940 light years. The star is moving closer to the Earth with a heliocentric radial velocity of −9 km/s.[7]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Hohle2010 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference perkins1989 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Houk1999 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Hoffleit1991 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference lang2006 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Souza2005 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Taylor1999 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).