Mauna Loa Solar Observatory (MLSO)

MLSO acquires unique observations of the Sun’s atmosphere to support NCAR’s goal to address critical gaps in understanding the Sun-Earth system and to provide observations to reduce damage and disruption from space weather hazards.

Mauna Loa observing plan for total solar eclipse on April 8, 2024. See news article for details.

MAUNA LOA OBSERVATORY IS CURRENTLY CLOSED. It closed on Nov 28, 2022 when Mauna Loa erupted. New road is scheduled for completion at the end of 2024. See the Mauna Loa volcano eruption page.

Latest Images

K-Cor pB

K-Cor White Light Corona
Movie: Cropped
Movie: Full Res


UCoMP sample data from 2024-04-09
Version 1.0.1 FITS data now available

GONG H-alpha

H-Alpha image taken by NSO's GONG instrument at Mauna Loa
MLO GONG station also offline due to road closure
● Full-Resolution FITS
● GONG movie
● GONG H-alpha Network


K-Cor White Light Corona (radial gradient filter applied)
Movie: Cropped
Movie: Full Res

CoMP Intensity

CoMP filtergram showing coronal emission intensity

Featured Event

Composite movie of CME on 2022-06-13
2022-06-13 CME

More Data

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