Instructions:

Blue squares represent the location of Messier catalog objects.

Orange circles represent the center of key images on this site.

These can be turned on and off using the overlays menu icon in the Aladin window.

Hover over, or click on, an image center and click on the provided link to search images on this site.

You can search for coordinates or objects using the search box at the top of the Aladin window.

Hover over marked object for identification.

DSS display settings:  Stretch: Linear asinh Sqrt   Brightness: V. low Low Normal Medium High V. high   Constrast: V. low Low Normal Medium High V. high   Saturation: V. low Low Normal Medium High V. high   Gamma: V. low Low Normal Medium-low Medium Medium-high High V. high

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