Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...228..399s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 228, no. 2, Feb. 1990, p. 399-402.
Astronomy and Astrophysics
Astronomy
6
Sky Surveys (Astronomy), Stellar Spectra, Stellar Spectrophotometry, Astronomical Catalogs, Automation, Classifying
Scientific paper
The two-dimensional stellar classification from the Vilnius seven-color photometry is compared with the MK classifications for a sample of 441 photoelectric stars. The photometric classification performed by a comparison of five independent reddening-free Q parameters of a program star with the corresponding Q parameters of a number of standard stars included in a reference catalog is outlined, and classification by a sigma-Q method from photoelectric photometry and photographic photometry is considered. It is demonstrated that there is a good agreement between the photometric classifications and MK classification (87 percent within +/- 2 subclasses and 93 percent within +/- 3 subclasses), which indicates that the previously found discrepancy between the sigma-Q and MK classifications is not valid.
Boyle Richard P.
Dasgupta Anjan K.
Nandy K.
Smriglio F.
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