Sun gallery · Observatoire des phénomènes naturels

The Sun at

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Date and time (UTC)

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30 days agoNow

**AIA 171 Å**Fe IX · ≈ 0.6 MK

Quiet corona and magnetic loops above active regions.

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**AIA 193 Å**Fe XII · ≈ 1.2 MK

Corona and dark coronal holes, where the fast solar wind escapes.

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**AIA 211 Å**Fe XIV · ≈ 2 MK

Hot active regions of the corona.

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**AIA 304 Å**He II · ≈ 50 000 K

Chromosphere and transition region: prominences and filaments.

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**AIA 131 Å**Fe VIII/XXI · 0.4 and 10 MK

Very hot flare plasma.

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**AIA 94 Å**Fe XVIII · ≈ 6 MK

Hot cores of active regions and flares.

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**AIA 335 Å**Fe XVI · ≈ 2.5 MK

Hot active regions.

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**AIA 1600 Å**C IV and continuum

Upper photosphere and transition region, bright faculae.

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**HMI continuum**visible light

The photosphere as the eye would see it: sunspots.

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**HMI magnetogram**magnetic field

Surface magnetic polarity: white towards the observer, black away.

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**LASCO C3**extended corona

Corona out to 30 solar radii: coronal mass ejections, sungrazing comets.

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**STEREO-A EUVI 195 Å**another viewpoint

The Sun seen from the STEREO-A spacecraft, offset from the Earth along its orbit.

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Helioviewer Project (ESA/NASA), helioviewer.org API v2: images from SDO/AIA and SDO/HMI (NASA, AIA and HMI science teams), SOHO/LASCO (ESA/NASA, NRL) and STEREO/SECCHI (NASA). · Published literature; cited Images rendered by Helioviewer, relayed and cached by this site; date and time are those of the closest image in each channel.

Method and sources

For the chosen date, the site asks the Helioviewer API for the closest image in each channel, has it rendered once at 512 and 1024 pixels, converts it to JPEG and keeps it. The browser only talks to the observatory.

Reading these data

Colours are conventional: each extreme-ultraviolet wavelength shows a different coronal temperature. LASCO C3 hides the solar disc behind an occulter; STEREO-A sees the Sun from another position on the Earth’s orbit.

SOURCES OF THIS PAGE

Helioviewer Project (ESA/NASA), helioviewer.org API v2: images from SDO/AIA and SDO/HMI (NASA, AIA and HMI science teams), SOHO/LASCO (ESA/NASA, NRL) and STEREO/SECCHI (NASA).: Helioviewer Project (ESA/NASA), helioviewer.org API v2: images from SDO/AIA and SDO/HMI (NASA, AIA and HMI science teams), SOHO/LASCO (ESA/NASA, NRL) and STEREO/SECCHI (NASA).
Licence : Published literature; cited

Sun gallery The Sun at the time you choose, in twelve SDO, SOHO and STEREO channels