Test exposures requested for symbiotic binary candidates

Adrian B. Lucy (Columbia University) requests the assistance of AAVSO observers, and writes: "We request observations to determine the current V, B, and U band magnitudes of the following candidate symbiotic stars, to help with planning for future observations. A single observation in each available filter would be sufficient; we are not requesting monitoring at this time, just approximate current magnitudes. Many of these targets have plenty of archival data, but we cannot assume that they have varied in predictable ways, so we require new test exposures." In the table of targets below, the fields "V", "B", and "U" indicate that one of each of those observations is needed for a star. This table will be posted on the AAVSO discussion forum thread for this campaign (URL above). It will be updated as observations have been submitted and coverage is complete for a band for a particular star. Observers are requested to monitor this thread to see the status of the table. Finder charts with sequence may be created using the AAVSO Variable Star Plotter (https://www.aavso.org/vsp). Observations should be submitted to the AAVSO International Database. See full Alert Notice for more details.