TomKrajci 🇺🇦 🏳️🌈 🏳️⚧️<p>Comet C/2024 G3 (ATLAS) - seen by the C3 coronograph on SOHO.</p><p>Download these images from:<br><a href="https://umbra.nascom.nasa.gov/pub/lasco/lastimage/level_05/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">umbra.nascom.nasa.gov/pub/lasc</span><span class="invisible">o/lastimage/level_05/</span></a><br>...specifically, go to the desired date, and camera (C3), such as:<br><a href="https://umbra.nascom.nasa.gov/pub/lasco/lastimage/level_05/250113/c3/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">umbra.nascom.nasa.gov/pub/lasc</span><span class="invisible">o/lastimage/level_05/250113/c3/</span></a></p><p>Images are in FITS format, which can be processed by GIMP:<br><a href="https://www.gimp.org/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">gimp.org/</span><span class="invisible"></span></a></p><p><a href="https://en.wikipedia.org/wiki/Solar_and_Heliospheric_Observatory" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Solar_an</span><span class="invisible">d_Heliospheric_Observatory</span></a></p><p>The comet is within hours of perihelion.<br><a href="https://en.wikipedia.org/wiki/C/2024_G3_(ATLAS)" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/C/2024_G</span><span class="invisible">3_(ATLAS)</span></a></p><p>1st image is in IR. Three tails seen.</p><p>2nd image is visible light. The brightest part of the comet is grossly overexposed, but faint tail details are seen. I enhanced visibility with unsharp masking.</p><p>When you download FITS files, also get a copy of the img_hdr.txt file because it tells you which file was taken with which filter.</p><p>3rd image is what NASA puts up for public consumption, but the scaling/histogram manipulation makes all parts of the comet white and featureless.<br><a href="https://soho.nascom.nasa.gov/data/realtime/c3/1024/latest.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">soho.nascom.nasa.gov/data/real</span><span class="invisible">time/c3/1024/latest.html</span></a></p><p><a href="https://universeodon.com/tags/Comet" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Comet</span></a> <a href="https://universeodon.com/tags/SOHO" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SOHO</span></a> <a href="https://universeodon.com/tags/Coronograph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Coronograph</span></a> <a href="https://universeodon.com/tags/FITS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FITS</span></a> <a href="https://universeodon.com/tags/GIMP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIMP</span></a> <a href="https://universeodon.com/tags/ImageProcessing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ImageProcessing</span></a> <a href="https://universeodon.com/tags/C2024G3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>C2024G3</span></a> <a href="https://universeodon.com/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://universeodon.com/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophotography</span></a> <a href="https://universeodon.com/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photography</span></a></p>