Optical and near-infrared photometry of the Vega-excess star SAO 26804=HD 233517.

Details Optical and near-infrared photometry of the Vega-excess star SAO 26804=HD 233517. Optical and near-infrared photometry of the Vega-excess star SAO 26804=HD 233517.

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...312..521m&link_type=abstract

Astronomy and Astrophysics, v.312, p.521-524

Astronomy and Astrophysics

Astrophysics

6

Circumstellar Matter, Stars: Individual: Hd 233517, Infrared: Stars

Scientific paper

UBVRIJHK photometry of the Vega-excess star SAO 26804=HD 233517and several stars of its environments obtained at the 1-meter telescope of the Tien-Shan Observatory in Kazakhstan is presented. It is shown that the star has a later spectral type than has been considered previously. Its effective temperature is estimated by the visual surface brightness method as 4170K. The star has no excess radiation in the range of 0.3-2.5μm. A comparison of its IR-excesses with those of other K-type stars with IR-excesses is made. HD 233517 is probably more evolved than SAO 179815=HD 98800 having a very similar intrinsic spectral energy distribution (SED) and the largest IR-excess among K-type stars from the SAO catalogue.

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