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HD 34682


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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.

UBV photometry of stars whose positions are accurately known. IV
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...68..211O&db_key=AST

Lunar occultation summary. II
Results of a second series of 196 two-color photoelectric lunaroccultation observations made within the interval from May 1972 toDecember 1973 are reported. Each observation has been employed toestimate the minimum magnitude difference between the observed objectand possible undetected companions. The study contains the analyses of143 disappearances and 53 reappearances. Eighteen of these eventsmanifest some degree of multiplicity. Included in the study are 18occultation events for Pleiades members.

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Dades d'Observació i Astrometria

Constel·lació:Taurus
Ascensió Recta:05h20m17.98s
Declinació:+25°10'15.8"
Magnitud Aparent:8.377
Distancia:181.488 parsecs
Moviment propi RA:-5.6
Moviment propi Dec:-20.4
B-T magnitude:8.669
V-T magnitude:8.402

Catàlegs i designacions:
Noms Propis
HD 1989HD 34682
TYCHO-2 2000TYC 1851-497-1
USNO-A2.0USNO-A2 1125-02303875
HIPHIP 24905

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