New KMAS website for daily and archive data

Here is new our website from Kislovodsk Mountain Astronomical Station (KMAS) presenting information of daily and archive data:

Features to be displayed (e.g., sunspot, filaments, corona, coronal holes etc) could be selected on the left side of solar disk. Moving the mouse over the feature will show detailed information related to that feature.

(from A. Tlatov)

Update on sunspot drawings

Digitization of Mount Wilson sunspot drawings has been completed. Description of the dataset and known issues are included in Pevtsov et al (2019, A&A, submitted).