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#Astrodon

60 posts44 participants4 posts today
Kerry Stevenson<p>I’ve been getting some pretty successful <a href="https://mastodon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophotography</span></a> images with my <a href="https://mastodon.social/tags/seestars50" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>seestars50</span></a> lately. Post processing really works! <a href="https://mastodon.social/tags/seestar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>seestar</span></a> <a href="https://mastodon.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a></p>
Spaceways<p>02/04/2025 - Evening walk up Tap o' Noth in Aberdeenshire. We took the scope and spent 4hrs on top, just sitting, having a brew and chatting to the stars. It was chilly but we hid behind the ramparts so it was OK (there's a Pictish hillfort on top). Aurora, stars, galaxies and nebula on a dark night, it was all pretty magic.</p><p><a href="https://toot.community/tags/EveningWalk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EveningWalk</span></a> <a href="https://toot.community/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://toot.community/tags/Aurora" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Aurora</span></a></p>
David Blanchflower BSc<p>The Sun and sunspots. 0902UT 3 April 2025. <a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astro</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophotography</span></a></p>
franco_vazza<p><a href="https://mastodon.social/tags/astroph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astroph</span></a> Very impressive ensemble view of the Magneticum suite of simulations (using Smoothed Particle Hydrodynamics) by K. Dolag et al.:</p><p><a href="https://arxiv.org/pdf/2504.01061" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/pdf/2504.01061</span><span class="invisible"></span></a></p><p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a></p>
catherinerhyde<p>The moon with Jupiter tonight. I purposely used a long exposure for the moon so you could see that hint of Earthshine. <br><a href="https://newsmast.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://newsmast.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://newsmast.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a></p>
Rob Tilsley<p>Part of tonight's moon. Enjoyed seeing Janssen (large crater just above center), and Vallis Rheita. Also cool to get a view of Mare Australe (mare in the far south east).</p><p><a href="https://mastodon.online/tags/Moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Moon</span></a> <a href="https://mastodon.online/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://mastodon.online/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophotography</span></a></p>
David Blanchflower BSc<p>Jupiter, Waxing Crescent Moon, Aldebaran, Hyades, and Pleiades. 2008UT 2 April 2025. <a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astro</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophotography</span></a></p>
David Blanchflower BSc<p>Waxing Crescent Moon with Earthshine. 1959UT 2 April 2025. <a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astro</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophotography</span></a></p>
David Blanchflower BSc<p>Waxing Crescent Moon. 1957UT 2 April 2025. <a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astro</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophotography</span></a></p>
David Blanchflower BSc<p>Jupiter with Galilean moons and the Waxing Crescent Moon. 1956UT 2 April 2025. <a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astro</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophotography</span></a></p>
Frank Adler<p>Letzte Nacht zwischen 20:45 und 23:45 Uhr zog der Mond vor den Plejaden vorbei. Natürlich war der Himmel komplett bewölkt, aber ich habe mit Archivmaterial gebastelt. </p><p><a href="https://adfr.io/thoughts/20250402_moon_passing_pleiades" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">adfr.io/thoughts/20250402_moon</span><span class="invisible">_passing_pleiades</span></a></p><p><a href="https://mastodon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophotography</span></a> <a href="https://mastodon.social/tags/astrophoto" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophoto</span></a> <a href="https://mastodon.social/tags/moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>moon</span></a> <a href="https://mastodon.social/tags/pleiades" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pleiades</span></a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a></p>
Doug Burke<p><a href="https://mastodon.social/tags/XraysAreTheBestRays" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>XraysAreTheBestRays</span></a> <br><a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <br><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a></p>
Doug Burke<p>This workshop is made possible by a generous donation from the Heising-Simons Foundation.</p><p>I also have failed to mention the title ends in ML....</p><p>"A Journey Into X-ray Astronomy<br>and Data Science"</p><p><a href="https://mastodon.social/tags/XraysAreTheBestRays" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>XraysAreTheBestRays</span></a> <br><a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <br><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a></p>
Doug Burke<p>We are running our patented ̶g̶e̶t̶-̶r̶i̶c̶h̶ ̶q̶u̶i̶c̶k̶l̶y̶ Introduction to X-ray Astronomy with Chandra workshops in person, at UMass Lowell, May 19-23 2025.</p><p>If you are an undergrad, grad student, postdoc, or other Astronomer and interested to know about the joys and tribulations of X-ray Astronomy, and what it can do for you [*], then please look at <a href="https://cxc.harvard.edu/ciao/workshop/may25/index.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">cxc.harvard.edu/ciao/workshop/</span><span class="invisible">may25/index.html</span></a></p><p><a href="https://mastodon.social/tags/XraysAreTheBestRays" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>XraysAreTheBestRays</span></a> <br><a href="https://mastodon.social/tags/AstroDon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AstroDon</span></a> <br><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> </p><p>[*] past performance is not indicative of future results</p>
rdm<p>I took this back on the 10th of March.</p><p>It is our old friend the Eta Carinae Nebula.</p><p>This time with a SII/OIII filter (thanks for the suggestion, <span class="h-card" translate="no"><a href="https://thingy.social/@malcircuit" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>malcircuit</span></a></span> !) and 120x90s@80 for the exposures. Then I ran it through the Dwarflab star removal tool, and post-processed the result in Snapseed.</p><p>I was not going to post it, but it came up as a background on my office screen today (long story), and I had not realised just how much detail it had.</p><p><a href="https://aus.social/tags/Dwarf3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dwarf3</span></a> <a href="https://aus.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://aus.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrophotography</span></a> <a href="https://aus.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://aus.social/tags/EtaCarinae" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EtaCarinae</span></a> <a href="https://aus.social/tags/starless" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>starless</span></a> <a href="https://aus.social/tags/Snapseed" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Snapseed</span></a></p>
Daniel Pomarède<p><a href="https://mastodon.social/tags/SPHEREx" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SPHEREx</span></a></p><p>NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) has turned on its detectors. Initial images from the observatory confirm that all systems are working as expected.</p><p><a href="https://www.jpl.nasa.gov/news/nasas-spherex-takes-first-images-preps-to-study-millions-of-galaxies/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">jpl.nasa.gov/news/nasas-sphere</span><span class="invisible">x-takes-first-images-preps-to-study-millions-of-galaxies/</span></a> </p><p><a href="https://mastodon.social/tags/Cosmology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Cosmology</span></a> <a href="https://mastodon.social/tags/Astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astronomy</span></a> <a href="https://mastodon.social/tags/Astrophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrophysics</span></a> <a href="https://mastodon.social/tags/Astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Astrodon</span></a> <a href="https://mastodon.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>STEM</span></a> <a href="https://mastodon.social/tags/news" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>news</span></a></p>
franco_vazza<p>Continuing from</p><p><a href="https://mastodon.social/@franco_vazza/114262195337053430" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mastodon.social/@franco_vazza/</span><span class="invisible">114262195337053430</span></a></p><p>here is the same numerical propagation experiments for Ultra High Energy Cosmic Rays in the magnetised cosmic web, but in this case considering Iron nuclei of E=1e18eV: since they are more massive and charged, their larmor radius is smaller, and trajectories are as expected for tangled and overall anisotropic (as they "feel" magnetised filaments of the cosmic web)</p><p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a></p>
titaniumbiscuit<p><span class="h-card" translate="no"><a href="https://zirk.us/@NanoBookReview" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>NanoBookReview</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@badastro" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>badastro</span></a></span> That hotspot on Makemake could be the signature of an Alien observation post whose mission it is to detect and report back when the life seeded on planet #3 is ready for harvesting. *Microwave oven DING sound* </p><p><a href="https://nerdculture.de/tags/microfiction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microfiction</span></a> <a href="https://nerdculture.de/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a></p>
franco_vazza<p>The sense of lonely tragedy of 1st of April papers that only appear on <a href="https://mastodon.social/tags/astroph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astroph</span></a> on the 2nd..</p><p><a href="https://mastodon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://mastodon.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a> <a href="https://mastodon.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a></p>
catherinerhyde<p>A quick snapshot of the moon at sunset tonight with my "day camera" (Nikon P1000). I wanted to get a proper image of it with the Pleiades, but these fast-moving bands of showers are still blowing through, and I don't dare uncover the equipment. <br><a href="https://newsmast.social/tags/space" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>space</span></a> <a href="https://newsmast.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomy</span></a> <a href="https://newsmast.social/tags/astrodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astrodon</span></a></p>
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