The proper motion and orbital motion of the galactic globular cluster M79

Details The proper motion and orbital motion of the galactic globular cluster M79 The proper motion and orbital motion of the galactic globular cluster M79

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cha%26a..29..386w&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 29, Issue 4, p. 386-395.

Astronomy and Astrophysics

Astrophysics

Scientific paper

Using astrometric plates of Shanghai Observatory spanning a period of 29 years, the absolute proper motion of the Galactic globular cluster M79 was measured. Adopting the distance and radial velocity given by , its present space velocity was derived; then by taking the Galactic gravitational potential model proposed by , its past orbital parameters in the Galactic system were derived. We also discuss the uncertainties in kinematical studies of globular clusters based on the use of proper motion data.

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