Proposal to measure stellar radial velocities for the HIPPARCOS astrometry program

Details Proposal to measure stellar radial velocities for the HIPPARCOS astrometry program Proposal to measure stellar radial velocities for the HIPPARCOS astrometry program

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982esasp.177..221f&link_type=abstract

In ESA The Sci. Aspects of the Hipparcos Space Astrometry Mission p 221-222 (SEE N82-30146 20-88)

Astronomy and Astrophysics

Astronomy

Astrometry, Esa Satellites, Prisms, Radial Velocity, Space Observations (From Earth), Classifications, Image Contrast, Spectrographs, Star Distribution, Stellar Spectra

Scientific paper

Measurement of radial velocities of stars less advanced than spectral type 5 is proposed. Accuracy on the order of 4 km/sec is possible, using objective prisms. Analysis of the plates gives stellar coordinates and spectral type, according to the MK system, but without luminosity. Stars which are too isolated can be measured with a slit spectrograph. Measurement is automated, enabling all stars of magnitude 10 in the Hipparcos program to be measured within 6 years.

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