| |
Cepheid eta Aql (period: 7.2 days)
Binaries 15 Aql, 57 Aql, pi Aql
Planetary Nebula NGC 6891, NGC 6803
Open star cluster NGC 6755
Meteor Showers: June Aquilids, Epsilon Aquilids ...
The interferometer reveals the tight orbit of fifth magnitude Theta Aquilae B as it orbits third magnitude Theta Aql A, whjich lies at the cross (in reality the two orbiting a common center of mass between them).
The distances to four of the stars (Eta Aql, W Sgr, Beta Dor and L Car) were derived using the interferometric Baade-Wesselink method, as their pulsation is detected by the VLTI.
 See also: Star, Constellation, Period, Second, Cepheid
  
|
RSS
