2021 RR Lyrae Ephemeris The 2021 RR Lyrae Ephemeris is now available. Many thanks to its creator, Gerry Samolyk! Tags front page news SPP Read more about 2021 RR Lyrae Ephemeris
AAVSO Short Period Pulsator Section Administrator: Dr. Tags SPP observing sections Read more about AAVSO Short Period Pulsator Section
