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Faint Sky Variability Survey


The Faint Sky Variability Survey is aimed at finding photometric and/or astrometric variable objects in the brightness range between ~16th and ~24th mag on time-scales between tens of minutes and years with photometric precisions ranging from 3 millimag for the brightest to 0.2 mag for the faintest objects. An area of ~23 deg2, located at mid and high Galactic latitudes, has been covered using the Wide Field Camera (0.29 deg2 FoV) on the 2.5-m Isaac Newton Telescope on La Palma. The survey area is divided into 17 sub-areas covering a full range in RA. The V filter is used for most of the variability observations, with B and I filters used to provide auxiliary color information.

Faint Sky Variability Survey at a Glance

PI(s) Ed van den Heuvel
Years of Observation 1998-2001
Area covered: ~23 deg2 in 79 fields
Bands V primary - B, I for color information
Median Depth (5σ) 23.7, 24.2, 22.5 (V,B,I)
Median Seeing 1.3, 1.3, 1.1 (V,B,I)
Number of images 5402