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

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Anatoly S. Miroshnichenko, Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/

Abstract: UBVRUHK photometry of the Vega-excess star SAO 26804=HD 233517 and several stars of its environments obtained at the I-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 oreviously. Its effective temperature is estimated by the visual surface brightness method as 4170 K. The star has no excess radiation in the range of 0.3-2.5 um. 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.

Additional Information

Astronomy and Astrophysics 312, 521-524 (1996)
Language: English
Date: 1996
circumstellar matter, stars: individual: HD 233517 , infrared: stars

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