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HD 104890


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Radial velocities of faint stars from objective prism plates
A simple method by which the approximate radial velocity of a star maybe obtained from objective prism plates is described in detail. Themethod has been used to derive the velocities of 41 faint stars, most ofwhich have metal-weak spectra and are shown to be high-velocity objects.It is shown that this method may be generalized so that the radialvelocities for all measurable stars on an objective prism plate can beobtained.

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Observation and Astrometry data

Constellation:Corbeau
Right ascension:12h04m45.25s
Declination:-17°51'03.9"
Apparent magnitude:9.084
Proper motion RA:3.6
Proper motion Dec:-25.7
B-T magnitude:9.784
V-T magnitude:9.142

Catalogs and designations:
Proper Names
HD 1989HD 104890
TYCHO-2 2000TYC 6097-227-1
USNO-A2.0USNO-A2 0675-11877306
HIPHIP 58900

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