AAVSO Alert Notice 501: Monitoring Requested for HST/COS Observations of SBS 1108+574AAVSO Alert Notice 501: Monitoring Requested for HST/COS Observations of SBS 1108+574
AAVSO Alert Notice 501<br /> Predicted occultation of Regulus<br /> April 30, 2014 <p>Dr. Peter Garnavich (University of Notre Dame) and Dr. Paula Szkody (University of Washington) have requested the help of AAVSO