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HD 125616


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Radial velocities from microdensitometer scans of objective-prism spectra
Measures were made from scans of objective-prism spectra of more than1000 stars on four plates using a PDS microdensitometer. The plates areall of a single star field and were taken with the CTIO Schmidttelescope. They have been measured by hand in the course of theobjective-prism radial velocity survey of CIDA. Reductions of themeasures were made in order to determine whether this very rapid machinecan be used to obtain positions of spectral lines with no loss ofprecision when compared to the measures made by hand. Results of thereduction show that the PDS measures can be used to obtain radialvelocities as accurately as the hand measures. In addition, photometricparameters are computed which allow the determination of photographicblue magnitudes, color indices, and quantitative spectralclassifications. The ease and rapidity of obtaining the scans indicatethat many large-scale studies of galactic structure and kinematics arepractical as well as possible.

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Observation and Astrometry data

Constellation:Centaurus
Right ascension:14h21m18.80s
Declination:-34°15'13.0"
Apparent magnitude:8.753
Distance:1204.819 parsecs
Proper motion RA:-16.7
Proper motion Dec:2.8
B-T magnitude:10.596
V-T magnitude:8.906

Catalogs and designations:
Proper Names
HD 1989HD 125616
TYCHO-2 2000TYC 7290-1511-1
USNO-A2.0USNO-A2 0525-17371670
HIPHIP 70160

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