Perkins Revised MK Types for the Cooler Stars (Keenan+ 1989)

Details Perkins Revised MK Types for the Cooler Stars (Keenan+ 1989) Perkins Revised MK Types for the Cooler Stars (Keenan+ 1989)

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ycat.3150....0k&link_type=abstract

VizieR On-line Data Catalog: III/150A. Originally published in: 1989ApJS...71..245K

Astronomy and Astrophysics

Astronomy

1

Mk Spectral Classification, Spectral Types, Stars: Late-Type, Stars: Standard

Scientific paper

The original catalog of standard stars classified on the Revised MK system published in 1989 contains 1054 standard stars of spectral types G0 and later (G, K, M, and a few S stars) classified at the Perkins Observatory. The present version of the catalog takes into account the revisions (before 14h of RA) presented by Philip C. Keenan and Gerald H. Newsom at the Department of Astronomy of the Ohio State University (http://www-astronomy.mps.ohio-state.edu/MKCool) dated 2000 January; the Sun (G2V star) has been omitted from the catalog. Accurate positions were added in 2003.
The revised MK system is described by Keenan (1987PASP...99..713K). The spectrograms used for the classification were taken at four different observatories; hence, extensive comparisons have been made to ensure consistency between the Northern and Southern Hemispheres. The list provides a consistent set of standards in most parts of the sky and over a considerable range in magnitude, for stars later than G0. The catalog is not a survey complete to any magnitude and is not intended for statistical studies.
(3 data files).

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