THE ORBIT OF THE CLASSICAL CEPHEID U AQUILAE

A total of 62 new radial-velocity observations ofthe classical Cepheid U Aql have been obtained during the interval 1969-86. We present the first determination of a spectroscopic binary orbit for this star. The orbital elements derived from both new and published velocities are: P= 1856.4 ± 4.3 days...

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Veröffentlicht in:	Publications of the Astronomical Society of the Pacific 1987-07, Vol.99 (617), p.610-616
Hauptverfasser:	WELCH, DOUGLAS L., EVANS, NANCY R., LYONS, RON W., HARRIS, HUGH C., BARNES, THOMAS G., SLOVAK, MARK H., MOFFETT, THOMAS J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Cepheids Cepheids (delta cephei, w virginis) Earth, ocean, space Ephemerides Exact sciences and technology Observatories Orbital elements Orbital evolution Orbital velocity Phase shift Radial velocity Stars Telescopes Variable and peculiar stars (including novae) Wavelengths
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