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HD 33971


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관련 글

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 second list of wide visual binaries
Not Available

A second list of wide visual binaries
Not Available

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관련 링크

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다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:기린자리
적경:05h32m46.47s
적위:+83°24'15.2"
가시등급:9.032
적경상의 고유운동:-59.2
적위상의 고유운동:-40.3
B-T magnitude:9.877
V-T magnitude:9.102

천체목록:
일반명   (Edit)
HD 1989HD 33971
TYCHO-2 2000TYC 4617-1014-1
HIPHIP 25989

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