2022 EB and RR Lyr Ephemerides
The 2022 Eclipsing Binary Ephemeris and 2022 RR Lyrae Ephemeris are now available.
Many thanks to Gerry Samolyk for all his hard work putting these two valuable documents together!
rr lyrae
Free Access to the May 5 Keynote Address at the AAVSO Spring Meeting
The theme of this year’s spring meeting is Pulsating Stars. The meeting will begin on Thursday evening at 6pm CDT with a keynote address by Dr. Horace Smith, Professor Emeritus of Michigan State University and a noted expert on RR Lyrae stars. Dr.
Observed Maxima Timings of RR Lyrae Stars
Observed Maxima Timings of RR Lyrae Stars
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| Many RR Lyrae stars were discovered in globular clusters where they could be used as standard candles for cosmic distance estimations. |