V1339 Aquilae

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V1339 Aquilae
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 50m 17.4793s
Declination +07° 54′ 08.707″
Apparent magnitude (V) 6.484
Characteristics
Spectral type B2.5IVe
U−B color index -0.7
B−V color index -0.1
Variable type Be star
Astrometry
Radial velocity (Rv) -30.1 km/s
Proper motion (μ) RA: -1.08 mas/yr
Dec.: -3.96 mas/yr
Parallax (π) 2.1 ± 0.92 mas
Distance approx. 1,600 ly
(approx. 500 pc)
Absolute magnitude (MV) 6.339
Details
Mass 18 M
Radius R
Luminosity 20,000 L
Temperature 10,000–30,000 K
Other designations
SAO 125116, HD 187567, BD+07° 4252, HIP 97607, HR 7554,HIC 97607.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

V1339 Aquilae is a Be star. Binary star nature discovered by speckle interferometry.

References[edit]