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HD 126627


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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.

The calibration of the Stromgren photometric system for A, F and early G supergiants. I - The observational data
An empirical calibration of the Stromgren uvby-beta photometric systemfor the A, F, and early G supergiants is being derived. This paperexplains the observational program and the photometric reductiontechniques used and presents a catalog of new Stromgren photometry forover 600 A, F, and G supergiants.

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Observation and Astrometry data

Constellation:コンパス座
Right ascension:14h29m38.00s
Declination:-66°24'42.3"
Apparent magnitude:9.009
Distance:170.068 parsecs
Proper motion RA:-48
Proper motion Dec:-31.4
B-T magnitude:9.366
V-T magnitude:9.039

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 126627
TYCHO-2 2000TYC 9018-987-1
USNO-A2.0USNO-A2 0225-20280840
HIPHIP 70875

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