Finding Chart Program

The USNO-A2.0 finding chart program will enable you to extract and plot all stars in a specified field of view which are listed in the USNO-A2.0 catalog. Before you run this program, you will need the following information:

• Astronomical coordinates of the field center (J2000.0)

• Width of the field of view, in units of degrees

• A desired magnitude range for the finding chart (optional)

There are two forms you can choose between for requesting you finding charts:

• Basic Form: requires only minimal input information and produces finding charts oriented as viewed at the 61-inch telescope console.

• Detailed Form: allows user to enter more options, including alternate orientations for the sky charts (and includes pixel retrieval).