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HD 63280


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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.

Radial velocity measurements. IV - Ground-based accompaniment to the HIPPARCOS observation program
The paper presents 396 radial velocities of stars distributed in 19fields of 4 x 4 degrees. The study employs the Fehrenbach objectiveprism method and the same measuring technique used in a previous paper(Fehrenbach et al., 1987).

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Observation and Astrometry data

Constellation:Lynx
Right ascension:07h49m44.19s
Declination:+38°01'19.6"
Apparent magnitude:8.076
Distance:469.484 parsecs
Proper motion RA:-4
Proper motion Dec:-3.4
B-T magnitude:8.045
V-T magnitude:8.074

Catalogs and designations:
Proper Names
HD 1989HD 63280
TYCHO-2 2000TYC 2959-1509-1
USNO-A2.0USNO-A2 1275-07076892
HIPHIP 38215

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