Stellar Photometry in SDSS Filters u'g'r'i'z' in SA 57 and SA 68

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Using the filter system for the Sloan Digital Sky Survey, I present photometry of stars at two galactic latitudes, 86.2deg and 35.5deg . The number densities and color distributions agree with standard galactic models. The bi-modal color distributions reflect halo and disk components. These distributions can be used to determine the mean color shift with an accuracy better than 0.1 mag. In color-color space, the stellar locus agrees with colors calculated for the main sequence, demonstrating usefulness of this system for selecting non-stellar objects based on photometry alone.

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