V1339 Aquilae

From Wikipedia, the free encyclopedia
Jump to: navigation, search
V1339 Aquilae
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 50m 17.47943s
Declination +07° 54′ 08.6934″
Apparent magnitude (V) 6.484
Spectral type B2.5IVe
U−B color index -0.7
B−V color index -0.1
Variable type Be star
Radial velocity (Rv) -30.10 ± 5 km/s
Proper motion (μ) RA: -0.77 ± 0.39 mas/yr
Dec.: -5.44 ± 0.46 mas/yr
Parallax (π) 1.89 ± 0.45 mas
Distance approx. 1,700 ly
(approx. 500 pc)
Mass 13.0[1] M
Radius 7.7[1] R
Temperature 23310[1] K
Other designations
SAO 125116, HD 187567, BD+07° 4252, HIP 97607, HR 7554,HIC 97607.
Database references
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

V1339 Aquilae, also known as HD 187567, is a Be star in the constellation Aquila. It is around 13 times as massive as the Sun and has 7.7 times its diameter.[1]

Its binary nature was discovered by speckle interferometry.


  1. ^ a b c d Catanzaro, G. (2013). "Spectroscopic atlas of Hα and Hβ in a sample of northern Be stars". Astronomy & Astrophysics. 550: 18. arXiv:1212.6608Freely accessible. Bibcode:2013A&A...550A..79C. doi:10.1051/0004-6361/201220357. A79.