Today's acronym of the day features one of the AAVSO's tools, SeqPlot – The AAVSO Sequence Plotter.
SeqPlot is a platform independent Java Web Start application. It accesses an on-line MySQL database that contains more than 47 million stars that have been calibrated through the AAVSO Photometric All-Sky Survey (APASS), USNO-Flagstaff, Sonoita, and other AAVSOnet telescopes. The General Catalogue of Photometric Data (GCPD) and Tycho-2 catalogs are also included. You can plot fields using either a field name or by coordinates and field size. Users can select stars for a sequence and write them to a text file in the correct format for uploading to VSD.
This is just one example of the tools the AAVSO provides to its members, observers and the astronomical community. Please help support these services by contributing to this year's Annual Campaign.
You can mail a check to AAVSO headquarters, or you can make a donation online. Just click the Donate Now button on our home page and select Annual Campaign in the drop down menu.