Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...88...87s&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 88, no. 1, April 1991, p. 87-93. Universita di Roma I-suppor
Astronomy and Astrophysics
Astrophysics
14
Astronomical Photometry, Classifications, Interstellar Extinction, Star Distribution, Charge Coupled Devices, Stellar Luminosity, Stellar Spectra
Scientific paper
Two-dimensional classification of 216 stars down to 17 mag based on their seven color photoelectric and CCD photometry in the Vilnius system is presented. Except for the normal stars, several subdwarfs, metal-deficient giants, and stars of other peculiarities are suspected. Interstellar extinction is determined for normal stars in two areas north and south of globular cluster M56, as well as for a 1 sq deg area around M56. The mean value of A(v) outside the galactic dust layer is about 0.75 mag.
Boyle Richard P.
Dasgupta Anjan K.
Nandy K.
Smriglio F.
Straizys Vytautas
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