Partial Solar Eclipse Today!

Much of the U.S. and Central America will experience a partial eclipse of the Sun this afternoon! Check the animated map below to see what time your location will be favored. If you do go out to look, be sure to use special glasses made to view the Sun.

A Complication to the "Coronal Seismology" Paradigm

Wednesday, December 1, 2010

Quasi-periodic propagating disturbances are frequently observed in coronal intensity image sequences.

Mk4-STEREO-LASCO Composites

HAO / MLSO is now providing daily composite images of the solar corona as seen from 3 viewing angles: STEREO B, Earth-Sun, and STEREO-A. The STEREO A/B composites consist of SECCHI images from: EUVI (inner corona seen against the solar disk), the MLSO MK4 K-Coronameter (blue), the COR1 Coronagraph (green) and the COR2 Coronagraph (in red). The SOHO/MK4 composite combines EIT (solar disk), MK4 (blue) and LASCO C2 (red). MK4 images are NOT rotated to match the STEREO viewing angles.

Funding Approved for New Coronagraph

NCAR/ESSL has approved funding for a new coronagraph to replace the aging Mk4 instrument. Keep track of this exciting development on our New Coronagraph page. The Mk4 is still offline while a new camera is being installed and tested. Thank you for your patience.

Mk4 Composites

COronal Multi-channel Polarimeter

The CoMP instrument (see Tomczyk, et al. 2008) can observe the coronal magnetic field with a full FOV in the low corona (~1.03 to 1.5 Rsun), as well as obtain information about the plasma density and motion. Like Solar-C, CoMP records the intensity and the linear and circular polarization (Stokes I,Q,U,V) of the forbidden lines of Fe XIII at 1074.7 nm and also at 1079.8 nm.

Solar Maximum Mission Coronagraph

This will be the SMM instrument page.


COSMO K-Coronagraph (K-Cor)

K-Cor on the Spar

K-Cor on the MLSO spar

MLSO Data and Movies


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