35 Vulpeculae
Star in the constellation Vulpecula
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35 Vulpeculae is a single,[9] white-hued star in the northern constellation of Vulpecula. It is faintly visible to the naked eye with an apparent visual magnitude of 5.39.[1] An annual parallax shift of 16.9162±0.0681 mas[2] provides a distance estimate of about 193 light years. It is moving closer with a heliocentric radial velocity of −8 km/s.[4]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vulpecula[1] |
| Right ascension | 21h 27m 40.0577s[2] |
| Declination | +27° 36′ 30.940″[2] |
| Apparent magnitude (V) | 5.39[1] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | A1VmA3[3] |
| B−V color index | 0.049±0.003[1] |
| Astrometry | |
| Radial velocity (Rv) | −8.0±2.8[4] km/s |
| Proper motion (μ) | RA: 41.336(65)[2] mas/yr Dec.: 20.923(59)[2] mas/yr |
| Parallax (π) | 16.9162±0.0681 mas[2] |
| Distance | 192.8 ± 0.8 ly (59.1 ± 0.2 pc) |
| Absolute magnitude (MV) | 1.56[1] |
| Details | |
| Mass | 2.15[5] M☉ |
| Radius | 1.70[6] R☉ |
| Luminosity | 21.6[1] L☉ |
| Surface gravity (log g) | 4.35±0.14[5] cgs |
| Temperature | 9,622±327[5] K |
| Metallicity [Fe/H] | +0.4[7] dex |
| Rotational velocity (v sin i) | 81[7] km/s |
| Age | 212[5] Myr |
| Other designations | |
| 35 Vul, BD+26°4164, FK5 1549, HD 204414, HIP 105966, HR 8217, SAO 89720[8] | |
| Database references | |
| SIMBAD | data |
This is an A-type main-sequence star with a stellar classification of A1VmA3,[3] indicating it has the spectrum of an A1 class star with the metal-lines of an A3 star. It is an estimated 212[5] million years old with a projected rotational velocity of 81 km/s.[7] The star has 2.15[5] times the mass of the Sun with 1.70[6] times the Sun's radius. It is radiating 21.6[1] times the Sun's luminosity from its photosphere at an effective temperature of around 9,622 K.[5]