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What will the August 21st eclipse look like?

K-Cor image 7 CR before August 21st eclipse

Located at 11,200 feet in Hawaii, the NCAR K-Cor coronagraph records images of the corona. The Sun takes 27.3 days to rotate as seen from Earth. Since the corona usually changes slowly we can imagine what the eclipse will look like using pictures of the corona taken 1, 2, even 3 solar rotations before the eclipse. Stay tuned as we post new images closer to eclipse time!

Image taken 2017-02-12, 7 solar rotations before August eclipse

K-Cor image 6 CR before August 21st eclipse

Located at 11,200 feet in Hawaii, the NCAR K-Cor coronagraph records images of the corona. The Sun takes 27.3 days to rotate as seen from Earth. Since the corona usually changes slowly we can imagine what the eclipse will look like using pictures of the corona taken 1, 2, even 3 solar rotations before the eclipse. Stay tuned as we post new images closer to eclipse time!

Image taken 2017-03-10, 6 solar rotations before August eclipse

K-Cor image 5 CR before August 21st eclipse

Located at 11,200 feet in Hawaii, the NCAR K-Cor coronagraph records images of the corona. The Sun takes 27.3 days to rotate as seen from Earth. Since the corona usually changes slowly we can imagine what the eclipse will look like using pictures of the corona taken 1, 2, even 3 solar rotations before the eclipse. Stay tuned as we post new images closer to eclipse time!

Image taken 2017-04-06, 5 solar rotations before August eclipse

K-Cor image 4 CR before August 21st eclipse

Located at 11,200 feet in Hawaii, the NCAR K-Cor coronagraph records images of the corona. The Sun takes 27.3 days to rotate as seen from Earth. Since the corona usually changes slowly we can imagine what the eclipse will look like using pictures of the corona taken 1, 2, even 3 solar rotations before the eclipse. Stay tuned as we post new images closer to eclipse time!

Image taken 2017-05-04, 4 solar rotations before August eclipse

K-Cor image 3 CR before August 21st eclipse

Located at 11,200 feet in Hawaii, the NCAR K-Cor coronagraph records images of the corona. The Sun takes 27.3 days to rotate as seen from Earth. Since the corona usually changes slowly we can imagine what the eclipse will look like using pictures of the corona taken 1, 2, even 3 solar rotations before the eclipse. Stay tuned as we post new images closer to eclipse time!

Image taken 2017-05-31, 3 solar rotations before August eclipse

Latest Eclipse Blog Post

PolarCam Experiment Preparation
June 22, 2017

Our PolarCam camera created by 4D Technology came in this week, causing excitement on the Eclipse team and a scramble to create communication between all of our hardware.

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Recent News

Editor in Chief of Open Astronomy, a flagship for open publishing
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In late February 2017, Senior Scientist Philip Judge was contacted by Ewa Chmielewska, Managing Editor at De Gruyter Open, a scientific publisher of its own and third-party journals. To his great surprise, Ewa invited Philip to become Editor-In-Chief of the online journal Open Astronomy.

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Publication Highlights

TIMED trajectory from SABER measurements (left column) and TIEGCM simulations
Thermospheric recovery during the 5 April 2010 geomagnetic storm
June 12, 2017

Thermospheric temperature and density recovery during the 5 April 2010 geomagnetic storm has been investigated in this study.

TIE-GCM simulated effects
Impact of the lower thermospheric winter-to-summer residual circulation on thermospheric composition
June 12, 2017

Plain Language Summary or Abstract: Gravity wave forcing near the mesopause drives a summer-to-winter residual circulation in the mesosphere and a reversed, lower thermospheric winter-to-summer residual circulation.

Comparing the evolution of the daily hemispheric sunspot number and a data-inspired representation of activity band polarity and migration image
Deciphering Solar Magnetic Activity: Spotting Solar Cycle 25
June 9, 2017

We present observational signatures of solar cycle 25 onset. Those signatures are visibly following a migratory path from high to low latitudes.

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MLSO Latest Images

H-alpha Disk and Limb

Currently, H-alpha images are obtained by the GONG network, operated by the National Solar Observatory .

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CoMP Coronal Intensity

The COronal Multi-channel Polarimeter (CoMP) observes the Fe-XIII emission line at 1074.7 nm to measure the coronal magnetic field and obtain plasma density and motion in the low corona from ~1.03 to 1.5 solar radii.

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K-Cor White Light Corona

Designed to study the formation and dynamics of coronal mass ejections and the evolution of the density structure of the low corona, K-Cor records the polarization brightness (pB).

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K-Cor (radially graded filter)

K-Cor image with a normalized radially graded filter (nrgf) to maximize image contrast, especially in the outer field.

These data are ideal for measuring positions of coronal structures such as CMEs and helmet streamers.

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