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HD 22390

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Pulkovo compilation of radial velocities for 35495 stars in a common system. Not Available
New periodic variables from the Hipparcos epoch photometry Two selection statistics are used to extract new candidate periodicvariables from the epoch photometry of the Hipparcos catalogue. Theprimary selection criterion is a signal-to-noise ratio. The dependenceof this statistic on the number of observations is calibrated usingabout 30000 randomly permuted Hipparcos data sets. A significance levelof 0.1 per cent is used to extract a first batch of candidate variables.The second criterion requires that the optimal frequency be unaffectedif the data are de-trended by low-order polynomials. We find 2675 newcandidate periodic variables, of which the majority (2082) are from theHipparcos`unsolved' variables. Potential problems with theinterpretation of the data (e.g. aliasing) are discussed.
Mesures de vitesses radiales. VII. Accompagnement AU sol DU programme d'observation DU satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos. We publish 734 radial velocities of stars distributed in 28 fields of4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot etal. 1990 and 1992), using the Fehrenbach objective prism method.

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Osservazione e dati astrometrici

Costellazione:	Perseo
Ascensione retta:	03^h38^m06.14^s
Declinazione:	+46Â°16'34.8"
Magnitudine apparente:	9.093
Moto proprio RA:	-0.5
Moto proprio Dec:	-8.3
B-T magnitude:	9.253
V-T magnitude:	9.107

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 22390
TYCHO-2 2000	TYC 3313-2256-1
USNO-A2.0	USNO-A2 1350-03678556
HIP	HIP 16955

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