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SDO/HMI and GONG Images on 2024.04.17

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#1 SgrB2

SgrB2

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Posted 17 April 2024 - 03:27 AM

SDO is the Solar Dynamics Observatory and HMI is the
Helioseismic and Magnetic Imager aboard the spacecraft
which is in geosync orbit.  A large (~ 1.8 MB) HMI image of
the sun (4096x4096) has been colorized and annotated here
with all sunspots identified:

 

https://drive.google...iew?usp=sharing

 

Please use the above link to download the full image and
zoom in to enlarge sun spots.  The Thumbnail below is a
~ 75 KB version of the image (double click it for the UT).

-----------------------------------------------------------
Note:  The unprocessed data (from which the above JPEG
images were derived) comprise ~10 MB in GIF format, are
updated every 15 minutes, and can be accessed here:

 

http://jsoc.stanford...t_4096x4096.gif

------------------------------------------------------------

Also below is an H alpha image of the full sun taken with
one of the GONG (Global Oscillation Network Group)
telescopes on the same date and at a UT near that of the
above HMI image.  Double click the H alpha image for
the GONG telescope used and the UT.

 

Cheers,
SgrB2

Attached Thumbnails

  • xHMI_2024-04-17_0753UT.jpg
  • Learmonth_2024-04-17_0757UT.jpg

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#2 SgrB2

SgrB2

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Posted 17 April 2024 - 03:39 AM

Double click on this combined image of HMI and GONG images:

 

 

Attached Thumbnails

  • Combine 17.jpg

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#3 SgrB2

SgrB2

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Posted 17 April 2024 - 03:52 AM

Three second blink on AR3639:

 

 

Attached Thumbnails

  • AR3639.gif

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#4 SgrB2

SgrB2

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Posted 17 April 2024 - 06:34 AM

Daily frames in this 12 to 17 April video are each shown for

1 second except the last frame which has a dwell time of 3

seconds (April 17).

 

Note the large "n" shaped filament over the 6 days at the top.

Images run from April 12 to April 17.  This seemingly strong

filament has disappeared between frames April 16 and April 17.

Attached Thumbnails

  • Filament.gif

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#5 SgrB2

SgrB2

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Posted 17 April 2024 - 09:05 AM

Learmont GONG shows filament demise on April 17

from 0107 UT to 0220 UT:

 

 

Attached Thumbnails

  • Filament Demise.gif

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#6 gstrumol

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Posted 17 April 2024 - 09:10 AM

Learmont GONG shows filament demise on April 17

from 0107 UT to 0220 UT:

Yeah, I didn't think that would last long.


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