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Pulkovo compilation of radial velocities for 35495 stars in a common system. Not Available
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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Observation and Astrometry data

Constellation:	Skorpion
Right ascension:	16^h14^m59.13^s
Declination:	-14Â°38'20.4"
Apparent magnitude:	8.127
Distance:	91.075 parsecs
Proper motion RA:	-4.2
Proper motion Dec:	-36.5
B-T magnitude:	8.542
V-T magnitude:	8.162

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 146087
TYCHO-2 2000	TYC 5625-922-1
USNO-A2.0	USNO-A2 0750-09553256
HIP	HIP 79633

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