Solar Energetic Particle Alerts from a Coronagraph

In this NASA-led study, we report the concept of using near-real time observations from a coronagraph to provide early warning of a fast coronal mass ejection (CME) and the possible onset of a sola

A handy, scalable web display of recent solar movies and helpful information

The Sun Today is a single-page website dedicated to displaying the most recent movies from MLSO and other solar instruments.

Solar Maximum Mission Information and Data on the MLSO website

The Solar Maximum Mission (SMM) satellite was launched in 1980 aboard a NASA Delta rocket.

Special MLSO Observing Campaigns

Data & Observations

MLSO Home Page

Preliminary Eclipse Images

Two images of the solar corona in polarized light on August 21, 2017. At left is an image taken during eclipse totality using a PolarCam camera (4D Technology). At right is an image in the same type of polarized light from the Mauna Loa Solar Observatory (MLSO) K-Cor coronagraph camera. Polarized light provides information on the density and magnetic field of the Sun's corona. The K-Cor instrument creates artificial eclipse images of the corona for daily observations of the corona.