A further study of the globular cluster M 71

Details A further study of the globular cluster M 71 A further study of the globular cluster M 71

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987baicz..38..147n&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 38, June 1987, p. 147-152.

Astronomy and Astrophysics

Astronomy

1

Galactic Nuclei, Globular Clusters, Orbit Calculation, Stellar Motions, Astronomical Coordinates, Eccentric Orbits, Stellar Luminosity, Stellar Mass

Scientific paper

Data on the proper motion and heliocentric distance are used to determine the Galactocentric orbit and tidal radius of the globular cluster M 71 (NGC 6838). The method proposed by Naumova and Ogorodnikov (1973) is used to determine its mass. The results indicate that: (1) the cluster practically moves in the Galactic plane along a low-eccentricity orbit; (2) the tidal radius is within the limits of 19-46 pc; and (3) the mass is greater than or equal to 30,000 solar masses.

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