Notes: The map above shows a map of log total exposure time from object exposures taken with Mosaic (1, 1.1, 2, and 3) and DECam. You can:
- Click the magnifying glass to go to a coordinate or object
- Click the layers button to select the Base image layer, overlay an optical image of the sky (try the fade in/out slider), the catalog of DECam and Mosaic object-frame image centers (as of May 2016), or a catalog of DECam discovered dwarf galaxies.
- After selecting the May16 image center catalog overlay, click the arrow button to select what is contained in a region that you define with the mouse.