BD + 43 deg 1894 - A new Delta Scuti star

Details BD + 43 deg 1894 - A new Delta Scuti star BD + 43 deg 1894 - A new Delta Scuti star

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pasp...93...77y&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 93, Feb.-Mar. 1981, p. 77-81.

Astronomy and Astrophysics

Astronomy

15

Cepheid Variables, Eclipsing Binary Stars, Light Curve, Stellar Spectrophotometry, Electrophotometers, Stellar Luminosity, Stellar Spectra, Ubv Spectra

Scientific paper

Photometric and spectroscopic observations of the short-period variable star BD + 43 deg 1894 are presented. UBV photoelectric observations carried out over a period of three months show that the light of the star varies within the same night with a period of 0.0982747 day, and is bluer at light maxima than at light minima. Spectrograms obtained at a dispersion of 110 A/mm at three separate orbital phases exhibit no variations in spectral features over the orbital phases, and indicate a spectral type of A7 IV-V. On the basis of the features of the light variation and spectral type, it is concluded that BD + 43 deg 1894 is a Delta Scuti star, with an absolute visual magnitude of 0.9 and a distance of about 700 pc.

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