14 Vulpeculae

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]

14 Vulpeculae

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]
Distance	174 ± 2 ly (53.3 ± 0.5 pc)
Absolute magnitude (MV)	2.23[2]
Details
Mass	1.52[5] M☉
Luminosity	11.09[2] L☉
Surface gravity (log g)	3.81±0.14[5] cgs
Temperature	6,938±236[5] K
Metallicity [Fe/H]	−0.36[4] dex
Rotational velocity (v sin i)	150[6] km/s
Age	1.743[5] Gyr
Other designations
14 Vul, BD+22° 3872, HD 189410, HIP 98375, HR 7641, SAO 88016[7]
Database references
SIMBAD	data

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]