V1429 Aquilae

V1429 Aql

A visual band light curve for V1429 Aquilae adapted from Richardson et al. (2016)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 21m 33.977s[2]
Declination +14° 52′ 56.91″[2]
Apparent magnitude (V) 9.79 - 10.1[3]
Characteristics
Spectral type B3Ibe[4]
U−B color index 0.25[5]
B−V color index 1.48[5]
Variable type Eclipsing + cLBV[3]
Astrometry
Radial velocity (Rv)+30.7[6] km/s
Proper motion (μ) RA: −2.144[2] mas/yr
Dec.: −4.968[2] mas/yr
Parallax (π)0.2224 ± 0.0203 mas[2]
Distance15,000 ± 1,000 ly
(4,500 ± 400 pc)
Absolute magnitude (MV)−8.2[7]
Orbit[6]
Period (P)60.737 ± 0.008 days
Eccentricity (e)0.244 ± 0.020
Periastron epoch (T)2449546.01 ± 1.10
Argument of periastron (ω)
(secondary)		218.7 ± 5.7°
Semi-amplitude (K1)
(primary)		89.7 ± 2.0 km/s
Details[8]
Mass39.66 M☉
Radius86.80 R☉
Luminosity710,000 L☉
Surface gravity (log g)2.26 cgs
Temperature18,000 K
Rotational velocity (v sin i)50[4] km/s
secondary
Mass26.26 M☉
Radius20.41 R☉
Surface gravity (log g)3.55 cgs
Temperature6,227 K
Age6[9] Myr
Other designations
V1429 Aql, BD+14°3887, MWC 314, 2MASS J19213397+1452570, WISE J192133.96+145257.0
Database references
SIMBADdata

V1429 Aquilae is a candidate luminous blue variable multiple star system located in the constellation of Aquila. It is often referred to by its Mount Wilson Observatory catalog number as MWC 314. It is a hot luminous star with strong emission lines in its spectrum.

  1. ^ Cite error: The named reference richardson was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference edr3 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference vsx was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference carmona was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference moffat was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference frasca was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference vangenderen2001 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference lobel was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference LiermannSchnurr2014 was invoked but never defined (see the help page).