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Nearby Hipparcos Eclipsing Binaries for Color-Surface Brightness Calibration

Kruszewski, A.; Semeniuk, I.

This paper contains the list of Hipparcos eclipsing binaries that fulfill the following conditions: the star is classified in the Hipparcos Catalogue as EA-type eclipsing binary and its parallax is either larger than 5 mas or it is five times larger than its mean error. An eclipsing binary with known distance and with photometric and double-line s…

The Optical Gravitational Lensing Experiment. UBVI Photometry of Stars in Baade's Window

Udalski, A.; Wozniak, P.; Kubiak, M. +5 more

We present UBVI photometry for 8530 stars in Baade's Window obtained during the OGLE-II microlensing survey. Among these are over one thousand red clump giants. 1391 of them have photometry with errors smaller than 0.04, 0.06, 0.12, and 0.20 mag in the I, V, B, and U-band, respectively. We constructed a map of interstellar reddening. The corrected…