14 Vulpeculae

14 Vulpeculae
Map of the constellation Vulpecula
14 Vul in the constellation Vulpecula (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension 19h 59m 10.5367s[1]
Declination +23° 06′ 04.604″[1]
Apparent magnitude (V) 5.68[2]
Characteristics
Spectral type F1 Vn[3]
B−V color index 0.345±0.004[2]
Astrometry
Radial velocity (Rv)−38.0±3.7[4] km/s
Proper motion (μ) RA: −68.157±0.100[1] mas/yr
Dec.: 6.926±0.125[1] mas/yr
Parallax (π)18.7753 ± 0.1714 mas[1]
Distance174 ± 2 ly
(53.3 ± 0.5 pc)
Absolute magnitude (MV)2.23[2]
Details
Mass1.52[5] M☉
Luminosity11.09[2] L☉
Surface gravity (log g)3.81±0.14[5] cgs
Temperature6,938±236[5] K
Metallicity [Fe/H]−0.36[4] dex
Rotational velocity (v sin i)150[6] km/s
Age1.743[5] Gyr
Other designations
14 Vul, BD+22° 3872, HD 189410, HIP 98375, HR 7641, SAO 88016[7]
Database references
SIMBADdata

14 Vulpeculae is a single,[8] yellow-white hued star in the northern constellation of Vulpecula and proximate to the Dumbbell Nebula (M 27) on the celestial sphere, although actually much closer to the Earth.[9] It is a dim star that is faintly visible to the naked eye with an apparent visual magnitude of 5.68.[2] The distance to 14 Vul, as determined from its annual parallax shift of 18.7753±0.1714,[1] is around 174 light years. It is moving nearer with a heliocentric radial velocity of about −38 km/s,[4] and will make its closest approach in a million years when comes to within about 62 ly (19.04 pc).[2]

This is an F-type main-sequence star with a stellar classification of F1 Vn,[3] where the 'n' notation indicates nebulous lines due to rapid rotation. At the estimated age of 1.7[5] billion years old, it is spinning with a projected rotational velocity of 150[6] km/s and has sub-solar metallicity.[4] The star has 1.5[5] times the mass of the Sun and is radiating 11[2] times the Sun's luminosity from its photosphere at an effective temperature of about 6,938 K.[5]

  1. ^ a b c d e f Cite error: The named reference Gaia EDR3 was invoked but never defined (see the help page).
  2. ^ a b c d e f g Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference abt was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Casagrande2011 was invoked but never defined (see the help page).
  5. ^ a b c d e f g Cite error: The named reference David2015 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Bernacca1970 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Benedictetal2003 was invoked but never defined (see the help page).