MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington

Details MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...85.1069s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 85, no. 3, Nov. 1990, p. 1069-1087.

Astronomy and Astrophysics

Astrophysics

21

Astronomical Catalogs, Stellar Spectra, Stellar Spectrophotometry, Astronomical Observatories, H Beta Line, Peculiar Stars, Stellar Parallax, Ubv Spectra

Scientific paper

MK spectral classifications are given for 591 stars which are used for time and latitude observations at Mizusawa and Washington. The classifications in the MK system were made by slit spectrograms of dispersion 73 A/mm at H-gamma which were taken with the 91 cm reflector at the Okayama Astrophysical Observatory. Photometric observations in U BV were made with the 1-meter reflector at the Flagstaff Station of U.S. Naval Observatory. The spectrum of HD 139216 was found to show a strong absorption line of H-beta. The following new Am stars were found: HD9550, 25271, 32784, 57245, 71494, and 219109. The following new Ap stars were found: HD6116, 143806, 166894, 185171, and 209260. The three stars, HD80492, 116204, and 211376, were found to show the emission in CaII H and K lines.

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