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HD 146087


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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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 homogeneous catalog of new UBV and H-beta photometry of B- and A-type stars in and around the Scorpius-Centaurus OB association
B- and A-type stars in and near the Sco-Cen OB association areinvestigated with UBV and H-beta photometry to acquire data relevant tothe luminosity function of Sco-Cen. The measurements generally consistof two 10-s integrations of U, B, V, (W, N) filters, and theobservations are corrected iteratively for atmospheric extinction andinstrumental response. The data presented give the mean V magnitude,mean B-V, mean U-B, and the estimated uncertainties for these values.The catalog provides a homogeneous catalog of data for a large fieldwith stellar objects delineating membership to the association Sco-Cenand that affect the luminosity function of the aggregate.

Uvby-beta photometry of all stars earlier than G1 and brighter than V = 12 mag in Selected Area 132 containing Scorpius X-1
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1986A&AS...63..313K&db_key=AST

The radial velocities of SEG stars and the distance to Scorpius X-1.
Abstract image available at:http://adsabs.harvard.edu/abs/1973ApJ...181..543F

A study of the positions and proper motions of 83 stars in the regionof SCO X-1.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1969AJ.....74...20S&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Akrep
Sað Açýklýk:16h14m59.13s
Yükselim:-14°38'20.4"
Görünürdeki Parlaklýk:8.127
Uzaklýk:91.075 parsek
özdevim Sað Açýklýk:-4.2
özdevim Yükselim:-36.5
B-T magnitude:8.542
V-T magnitude:8.162

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 146087
TYCHO-2 2000TYC 5625-922-1
USNO-A2.0USNO-A2 0750-09553256
HIPHIP 79633
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