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HD 711


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Ýlgili Makaleler

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.

Radial velocity measurements. IV - Ground-based accompaniment to the HIPPARCOS observation program
The paper presents 396 radial velocities of stars distributed in 19fields of 4 x 4 degrees. The study employs the Fehrenbach objectiveprism method and the same measuring technique used in a previous paper(Fehrenbach et al., 1987).

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Zincirli Prenses
Sað Açýklýk:00h11m31.13s
Yükselim:+40°23'56.2"
Görünürdeki Parlaklýk:7.476
Uzaklýk:442.478 parsek
özdevim Sað Açýklýk:-7.4
özdevim Yükselim:-5.8
B-T magnitude:9.486
V-T magnitude:7.642

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 711
TYCHO-2 2000TYC 2786-666-1
USNO-A2.0USNO-A2 1275-00121623
HIPHIP 926

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