17 Vulpeculae

17 Vulpeculae
Observation data
Epoch J2000      Equinox J2000
Constellation Vulpecula
Right ascension 20h 06m 53.4077s[1]
Declination +23° 36′ 51.9292″[1]
Apparent magnitude (V) 5.08[2]
Characteristics
Spectral type B3 V[3]
B−V color index −0.162±0.002[2]
Astrometry
Radial velocity (Rv)−7.6±0.8[4] km/s
Proper motion (μ) RA: 15.246±0.096[1] mas/yr
Dec.: 0.316±0.108[1] mas/yr
Parallax (π)6.8168 ± 0.1430 mas[1]
Distance480 ± 10 ly
(147 ± 3 pc)
Absolute magnitude (MV)−0.86[2]
Details
Mass6.1±0.1[5] M☉
Radius3.9[6] R☉
Luminosity573.30[2] L☉
Temperature15,648[7] K
Metallicity [Fe/H]−0.14±0.04[2] dex
Rotational velocity (v sin i)115[8] km/s
Age10.7±1.9[5] Myr
Other designations
17 Vul, BD+23° 3896, FK5 3611, HD 190993, HIP 99080, HR 7688, SAO 88212[9]
Database references
SIMBADdata

17 Vulpeculae is a single,[10] blue-white hued star in the northern constellation of Vulpecula. The distance to this star can be estimated from its annual parallax shift of 6.8168±0.1430,[1] which yields a separation of roughly 480 light years. It is moving nearer with a heliocentric radial velocity of −8 km/s,[4] and will make its closest approach in around 6.1 million years at a distance of about 419 ly (128.36 pc).[2] The star is faintly visible to the naked eye with an apparent visual magnitude of 5.08.[2]

This is an ordinary B-type main-sequence star with a stellar classification of B3 V.[3] It is just 11[5] million years old with a high projected rotational velocity of 115 km/s.[8] The star has an estimated 6.1[5] times the mass of the Sun and around 3.9[6] times the Sun's radius. It is radiating 573[2] times the Sun's luminosity from its photosphere at an effective temperature of 15,648 K.[7]

  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 h Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Lesh1968 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Fracassini2001 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Mcdonald2012 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Strom2005 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).