The parallax and astrometric orbit of MU Cassiopeiae

Details The parallax and astrometric orbit of MU Cassiopeiae The parallax and astrometric orbit of MU Cassiopeiae

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..429r&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, June 1984, p. 429-431.

Astronomy and Astrophysics

Astronomy

12

Astrometry, Binary Stars, Orbital Elements, Stellar Parallax, Astronomical Photography

Scientific paper

An analysis of 371 exposures of the region of μ Cas, spanning 46 years, yields an absolute parallax of 0arcsec.1368±0arcsec.0033 and an astrometric orbit with a period of 22.09±0.26 yrs, a semimajor axis of 0arcsec.1900±0arcsec.0038, and an eccentricity of 0.58±0.03. The system has a space motion of 164 km sec-1; it appears underluminous and possibly undermassive when compared to accepted values for main-sequence Population I stars.

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