Some astrophysical consequences of an improvement in parallaxes

Details Some astrophysical consequences of an improvement in parallaxes Some astrophysical consequences of an improvement in parallaxes

Mar 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975spam.rept..115t&link_type=abstract

In ESRO Space Astrometry p 115-120 (SEE N75-30957 21-89)

Astronomy and Astrophysics

Astrophysics

2

Astrometry, Astrophysics, Parallax, Stellar Structure, Astronomical Catalogs, Calibrating, Chronology, Trigonometry

Scientific paper

The projects of space astrometry should yield an important improvement in trigonometric parallaxes for a very large number of stars. Three points are emphasized: (1) the limiting apparent magnitude will be much larger, the measurements of trigonometric parallaxes will then extend even to the coldest stars and allow calibrations for all types of stars; (2) the parallax measurements should allow us to reach larger distances from the sun; and (3) many more stars will be measured. This project could therefore provide statistically reliable samples of stars to be used for any calibration based on trigonometric parallaxes.

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