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HD 85453


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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.

A new list of effective temperatures of chemically peculiar stars. II.
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Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

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观测天体数据

星座:船帆座
右阿森松:09h50m22.06s
赤纬:-50°20'08.3"
视星:8.146
距离:392.157 天文距离
右阿森松适当运动:-19.3
赤纬适当运动:10.3
B-T magnitude:8.071
V-T magnitude:8.14

目录:
适当名称
HD 1989HD 85453
TYCHO-2 2000TYC 8189-1429-1
USNO-A2.0USNO-A2 0375-09168655
HIPHIP 48265

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