The National Solar Observatory has made data accessible on-line via the
networks.
Two databases containing the National Solar Observatory/Sacramento Peak
Fe XIV 530.3 nm and Ca XV 569.4 nm coronal ...
Observations of the disk-integrated solar Ca II K-line are made using
the Evans Coronal Facility at The National Solar Observatory/
Sacramento Peak. A coelostat is used to feed the horizontal Littrow ...
