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HD 55516


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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.

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Observation and Astrometry data

Constellation:Canis Major
Right ascension:07h12m50.19s
Declination:-11°36'01.1"
Apparent magnitude:7.742
Distance:1538.462 parsecs
Proper motion RA:-3.2
Proper motion Dec:-0.9
B-T magnitude:8.948
V-T magnitude:7.842

Catalogs and designations:
Proper Names
HD 1989HD 55516
TYCHO-2 2000TYC 5402-240-1
USNO-A2.0USNO-A2 0750-03688206
HIPHIP 34864

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