As usual, the AAVSO Sequence Team has been working hard updating and improving charts and comparison star sequences. The following is a list of updates made during the first six months of 2019. If you observe any of these objects please update your charts and photometry tables with the most recent version as soon as possible. This list is also available for download in XLSX and PDF format (see the links at the bottom of this page.)
Data Release 10 is now available.
Through a grant from the Robert Martin Ayers Sciences Fund, the AAVSO is performing an all-sky photometric survey. This survey is conducted in eight filters: Johnson B and V, plus Sloan u', g′, r′, i′, z_s and Z. It is valid from about 7th magnitude to about 17th magnitude.
[Note: If your variable star has an existing sequence, even if it is only one comparison star, please request assistance via CHET. This page is only for variables that have NO comparison stars. Thank you.]
The following objects have new or revised sequences.
The following objects have new or revised sequences. If you observe any of these objects you should update your charts as soon as possible. You can download the entire list in .xlsx or .csv format below. Our sincere thanks to Tom Bretl and the charts and sequences team for their continued hard work.
With APASS data release 8 filling in most of the remaining areas of sky with reliable secondary standards, the sequence team has been busy filling the remaining standing requests. This latest batch of new and revised sequences also has many newly discovered CVs from ASASSN, as well as sequences for RCB, NR and ZAND objects in the AID and VSX. You can downoad the list as either an .xlsx or .csv file.
The following objects have had new or revised sequences added since the end of May. Please be sure you are using the most up to date charts and sequences if you observe any of these objects.
A complete listing of new and revised sequences for 2014 is available here.
The list below are stars whose sequences have been created or revised since October 8, 2013. If you currently observe any of these stars, please update your charts to the latest version of the sequence.
You can also check the list for all of 2013 and previous years here.
The following charts (listed in order by constellation) have new or revised sequences since December 20, 2012. This list is quite long. A .csv file is available as an attachment here at the bottom of the page as well.
If you observe any of these stars please update your charts as soon as possible.