Astrobin Image of the Day<p>22-07-2025 Image Of The Day<br><a href="https://app.astrobin.com/u/Lrx.photo?i=9q3fnh#gallery" rel="nofollow noopener" target="_blank">https://app.astrobin.com/u/Lrx.photo?i=9q3fnh#gallery</a><br>Rainbow stars rain by Louis Leroux<br><a href="https://fedi.stfn.pl/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a></p>
techhub.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A hub primarily for passionate technologists, but everyone is welcome
Administered by:
Server stats:
4.6Kactive users
techhub.social: About · Status · Profiles directory · Privacy policy
Mastodon: About · Get the app · Keyboard shortcuts · View source code · v4.4.1
#astrophotography
181 posts · 96 participants · 18 posts today
ND<p><a href="https://flipboard.com/tag/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Astrophotography</span></a></p><p><a href="https://www.digitalcameraworld.com/photography/astrophotography/the-newest-member-of-the-solar-system-was-discovered-by-wide-angle-imaging-on-a-three-ton-870mp-camera?utm_source=flipboard&utm_medium=activitypub" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">digitalcameraworld.com/photogr</span><span class="invisible">aphy/astrophotography/the-newest-member-of-the-solar-system-was-discovered-by-wide-angle-imaging-on-a-three-ton-870mp-camera?utm_source=flipboard&utm_medium=activitypub </span></a></p><p>Posted into DEPTH OF FIELD <span class="h-card" translate="no"><a href="https://flipboard.com/@nndflip/depth-of-field-htkfqrptz" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>depth-of-field-nndflip</span></a></span></p>
World Beauty :verified:<p>Lynds Dark Nebula 1251<br>Credits: Stefano Attalienti<br><a href="https://universeodon.com/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://universeodon.com/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://universeodon.com/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a></p>
grobi<p>Tour: <br>A New Panorama of Our Galactic Center</p><p>Credit: <br>NASA/CXC/A. Hobart</p><p>A new panorama from NASA's Chandra X-ray Observatory and the MeerKAT radio telescope provides a stunning view of the center of our Milky Way galaxy. It also reveals threads of superheated gas and magnetic fields, which are weaving a tapestry of energy near the supermassive black hole that resides there.</p><p>Over the course of its mission, Chandra has taken many observations of the Galactic Center. This latest expands Chandra's high-energy view farther above and below the plane of the galaxy — that is, the disk where most of the galaxy's stars reside — than previous imaging campaigns. In the image, we see X-rays with different energies from Chandra in different colors. These have been combined with radio data from MeerKAT, a radio telescope in South Africa.</p><p>The result is intricate to the eye and also contains a wealth of scientific information to explore. For example, researchers identified long and narrow bands of X-rays that they call "threads". These features are bound together by thin strips of magnetic fields. One of these threads points perpendicular to the plane of the galaxy and is about 20 light-years long but only one-hundredth that size in width. (That's about five times the distance between the Sun and the nearest star.) These threads may have formed when magnetic fields aligned in different directions, collided, and became twisted around each other in a process called magnetic reconnection. This is similar to the phenomenon that drives energetic particles away from the Sun and is responsible for the space weather that sometimes affects Earth.</p><p>A detailed study of these threads teaches us more about the galactic space weather astronomers have witnessed throughout the region. <br>[...] <br>More information in ALT-Text</p><p><a href="https://chandra.harvard.edu/photo/2021/gcenter/animations.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">chandra.harvard.edu/photo/2021</span><span class="invisible">/gcenter/animations.html</span></a></p><p><a href="https://defcon.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://defcon.social/tags/galaxy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>galaxy</span></a> <a href="https://defcon.social/tags/milkyway" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>milkyway</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://defcon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/EHT" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EHT</span></a> <a href="https://defcon.social/tags/CHANDRA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CHANDRA</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://defcon.social/tags/education" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>education</span></a></p>
TomKrajci 🇺🇦 🏳️🌈 🏳️⚧️<p>Jupiter rising low in the northeast before dawn.</p><p>Monsoon clouds cover much of the sky.</p><p><a href="https://universeodon.com/tags/Jupiter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Jupiter</span></a> <a href="https://universeodon.com/tags/Twilight" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Twilight</span></a> <a href="https://universeodon.com/tags/NewMexico" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NewMexico</span></a> <a href="https://universeodon.com/tags/Photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Photography</span></a> <a href="https://universeodon.com/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Astrophotography</span></a></p>
grobi<p>2021 June 2</p><p>The Galactic Center in Stars, Gas, and Magnetism<br> * Image Credit: <br> ** X-ray: NASA/CXC/UMass/Q.D. Wang<br><a href="https://www.nasa.gov/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">nasa.gov/</span><span class="invisible"></span></a><br><a href="https://chandra.harvard.edu/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">chandra.harvard.edu/</span><span class="invisible"></span></a><br><a href="https://www.astro.umass.edu/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">astro.umass.edu/</span><span class="invisible"></span></a><br><a href="https://www.astro.umass.edu/people/faculty/daniel-wang" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">astro.umass.edu/people/faculty</span><span class="invisible">/daniel-wang</span></a> <br> ** Radio: NRF/SARAO/MeerKAT<br><a href="https://www.nrf.ac.za/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">nrf.ac.za/</span><span class="invisible"></span></a><br><a href="https://www.sarao.ac.za/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">sarao.ac.za/</span><span class="invisible"></span></a><br><a href="https://www.sarao.ac.za/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">sarao.ac.za/</span><span class="invisible"></span></a></p><p>Explanation: <br>What's going on near the center of our galaxy? To help find out, a newly detailed panorama has been composed that explores regions just above and below the galactic plane in radio and X-ray light. X-ray light taken by the orbiting Chandra Observatory is shown in orange (hot), green (hotter), and purple (hottest) and superposed with a highly detailed image in radio waves, shown in gray, acquired by the MeerKAT array. Interactions are numerous and complex. Galactic beasts such as expanding supernova remnants, hot winds from newly formed stars, unusually strong and colliding magnetic fields, and a central supermassive black hole are all battling in a space only 1000 light years across. Thin bright stripes appear to result from twisting and newly connecting magnetic fields in colliding regions, creating an energetic type of inner galactic space weather with similarities to that created by our Sun. Continued observations and study hold promise to not only shed more light on the history and evolution of our own galaxy -- but all galaxies. <br><a href="https://arxiv.org/abs/2010.02932" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">arxiv.org/abs/2010.02932</span><span class="invisible"></span></a></p><p><a href="https://apod.nasa.gov/apod/ap210602.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apod.nasa.gov/apod/ap210602.ht</span><span class="invisible">ml</span></a></p><p><a href="https://defcon.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://defcon.social/tags/galaxy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>galaxy</span></a> <a href="https://defcon.social/tags/milkyway" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>milkyway</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://defcon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/EHT" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EHT</span></a> <a href="https://defcon.social/tags/CHANDRA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CHANDRA</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a></p>
World Beauty :verified:<p>NGC 253: The Sculptor Galaxy<br>Credits: UNAM, Hubble Heritage Team, STScI, AURA, <a href="https://universeodon.com/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a><br><a href="https://universeodon.com/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://universeodon.com/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://universeodon.com/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a></p>
grobi<p>2012 January 12</p><p>The Case of the Missing Supernova Companion<br> * Image Credit: <br> ** X-ray: NASA/CXC/SAO/J.<br> Hughes et al.<br><a href="https://chandra.harvard.edu/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">chandra.harvard.edu/</span><span class="invisible"></span></a><br><a href="https://www.physics.rutgers.edu/~jackph/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">physics.rutgers.edu/~jackph/</span><span class="invisible"></span></a> <br> ** Optical: NASA/ESA/Hubble Heritage Team (STScI /AURA)<br><a href="https://science.nasa.gov/mission/hubble/multimedia/hubble-images/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/mission/hubbl</span><span class="invisible">e/multimedia/hubble-images/</span></a><br><a href="https://www.stsci.edu/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">stsci.edu/</span><span class="invisible"></span></a></p><p>Explanation: <br>Where's the other star? At the center of this supernova remnant should be the companion star to the star that blew up. Identifying this star is important for understanding just how Type Ia supernova detonate, which in turn could lead to a better understanding of why the brightness of such explosions are so predictable, which in turn is key to calibrating the entire nature of our universe. The trouble is that even a careful inspection of the center of SNR 0509-67.5 has not found any star at all. This indicates that the companion is intrinsically very faint -- much more faint that many types of bright giant stars that had been previous candidates. In fact, the implication is that the companion star might have to be a faint white dwarf, similar to -- but less massive than -- the star that detonated. SNR 0509-67.5 is shown above in both visible light, shining in red as imaged by the Hubble Space Telescope, and X-ray light, shown in false-color green as imaged by the Chandra X-ray Observatory. Putting your cursor over the picture will highlight the central required location for the missing companion star. </p><p><a href="https://apod.nasa.gov/apod/ap120112.html#space" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apod.nasa.gov/apod/ap120112.ht</span><span class="invisible">ml#space</span></a> <a href="https://defcon.social/tags/nebula" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nebula</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://defcon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://defcon.social/tags/ESA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESA</span></a> <a href="https://defcon.social/tags/education" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>education</span></a></p>
grobi<p>Animation of a double-detonation supernova</p><p>This animation illustrates the supernova remnant SNR 0509-67.5, the leftovers of a star that died with a double-detonation. These two blasts imprinted a characteristic layered structure in the expanding material around the star. At the end of the animation we show a real image captured with ESO’s Very Large Telescope (VLT), which displays different chemical elements in different colours. The are two concentric shells of calcium, seen here in blue, a telltale sign that the star met its end with two detonations. </p><p>For more details, check: <a href="https://www.eso.org/public/news/eso2511/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">eso.org/public/news/eso2511/</span><span class="invisible"></span></a>.</p><p>Credit:</p><p>ESO/M. Kornmesser/P. Das et al. Background stars, final image (Hubble): K. Noll et al.</p><p><a href="https://defcon.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://defcon.social/tags/nebula" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nebula</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://defcon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://defcon.social/tags/ESA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESA</span></a> <a href="https://defcon.social/tags/education" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>education</span></a></p>
Mo's Iceland photos<p>"She whispers, the aurora,<br>In hues of spectral beauty,<br>Her voice a cosmic sigh<br>Echoing through the eternal night.<br>In the quietude, she sings,<br>Her melody a celestial hymn,<br>A serenade of light<br>Resounding in the polar silence."<br>By Dan Higgins 2024</p><p>November, Búlandstindur in Berufjörður, eastern <a href="https://icelandphotos.co.uk/tags/Iceland" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Iceland</span></a>.</p><p><span class="h-card" translate="no"><a href="https://a.gup.pe/u/photography" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>photography</span></a></span></p><p><a href="https://icelandphotos.co.uk/tags/AuroraTuesday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AuroraTuesday</span></a> <a href="https://icelandphotos.co.uk/tags/NorthernLights" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NorthernLights</span></a> <a href="https://icelandphotos.co.uk/tags/aurora" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>aurora</span></a> <a href="https://icelandphotos.co.uk/tags/AuroraBorealis" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AuroraBorealis</span></a> <a href="https://icelandphotos.co.uk/tags/LandscapePhotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LandscapePhotography</span></a> <a href="https://icelandphotos.co.uk/tags/WeatherPhotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WeatherPhotography</span></a> <a href="https://icelandphotos.co.uk/tags/AstroPhotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AstroPhotography</span></a> <a href="https://icelandphotos.co.uk/tags/Astrodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Astrodon</span></a></p>
grobi<p>2025 July 22</p><p>A Double Detonation Supernova<br> * Image Credit: ESO, P. Das et al.; Background stars (NASA/Hubble): K. Noll et al.<br><a href="https://www.eso.org/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">eso.org/</span><span class="invisible"></span></a><br><a href="https://www.unsw.edu.au/hdr/priyam-das" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">unsw.edu.au/hdr/priyam-das</span><span class="invisible"></span></a><br><a href="https://science.nasa.gov/mission/hubble/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/mission/hubbl</span><span class="invisible">e/</span></a></p><p>Explanation: <br>Can some supernovas explode twice? Yes, when the first explosion acts like a detonator for the second. This is a leading hypothesis for the cause of supernova remnant (SNR) 0509-67.5. In this two-star system, gravity causes the larger and fluffier star to give up mass to a smaller and denser white dwarf companion. Eventually the white dwarf's near-surface temperature goes so high that it explodes, creating a shock wave that goes both out and in -- and so triggers a full Type Ia supernova near the center. Recent images of the SNR 0509-67.5 system, like the featured image from the Very Large Telescope in Chile, show two shells with radii and compositions consistent with the double detonation hypothesis. This system, SNR 0509-67.5 is also famous for two standing mysteries: why its bright supernova wasn't noted 400 years ago, and why no visible companion star remains. <br><a href="https://www.eso.org/public/images/eso2511a/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">eso.org/public/images/eso2511a</span><span class="invisible">/</span></a><br><a href="https://ui.adsabs.harvard.edu/abs/2025NatAs.tmp..135D/abstract" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">ui.adsabs.harvard.edu/abs/2025</span><span class="invisible">NatAs.tmp..135D/abstract</span></a></p><p><a href="https://en.wikipedia.org/wiki/Detonator" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Detonato</span><span class="invisible">r</span></a><br><a href="https://apod.nasa.gov/apod/ap970219.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apod.nasa.gov/apod/ap970219.ht</span><span class="invisible">ml</span></a><br><a href="https://en.wikipedia.org/wiki/Roche_lobe" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Roche_lo</span><span class="invisible">be</span></a><br><a href="https://apod.nasa.gov/apod/ap950910.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apod.nasa.gov/apod/ap950910.ht</span><span class="invisible">ml</span></a><br><a href="https://science.nasa.gov/universe/stars/types/#white-dwarfs" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">science.nasa.gov/universe/star</span><span class="invisible">s/types/#white-dwarfs</span></a></p><p><a href="https://en.wikipedia.org/wiki/Type_Ia_supernova" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/Type_Ia_</span><span class="invisible">supernova</span></a></p><p><a href="https://apod.nasa.gov/apod/ap250722.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">apod.nasa.gov/apod/ap250722.ht</span><span class="invisible">ml</span></a></p><p><a href="https://defcon.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://defcon.social/tags/nebula" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nebula</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://defcon.social/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://defcon.social/tags/ESA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESA</span></a> <a href="https://defcon.social/tags/education" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>education</span></a></p>
World Beauty :verified:<p>Blue Comet in the Hyades<br>Credits: Rogelio BernalAndreo<br><a href="https://universeodon.com/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://universeodon.com/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://universeodon.com/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a></p>
Jack C.M<p>Amateur astrophotographer captures trio of breathtaking nebulas from the Central Australian Desert (photos). Via @spacedotcom <a class="hashtag" rel="nofollow noopener" href="https://bsky.app/search?q=%23Space" target="_blank">#Space</a> <a class="hashtag" rel="nofollow noopener" href="https://bsky.app/search?q=%23Astrophysics" target="_blank">#Astrophysics</a> <a class="hashtag" rel="nofollow noopener" href="https://bsky.app/search?q=%23OrbitalMechanics" target="_blank">#OrbitalMechanics</a> <a class="hashtag" rel="nofollow noopener" href="https://bsky.app/search?q=%23Astronomy" target="_blank">#Astronomy</a> 🚀 🌌 ☄️ 🛰️ <a class="hashtag" rel="nofollow noopener" href="https://bsky.app/search?q=%23Astrophotography" target="_blank">#Astrophotography</a> ✨📷<br><br><a href="https://www.space.com/stargazing/amateur-astrophotographer-captures-trio-of-breathtaking-nebulas-from-the-central-australian-desert-photos" rel="nofollow noopener" target="_blank">Amateur astrophotographer capt...</a></p>
Alex<a href="https://pixelfed.social/discover/tags/AstroPhotography?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#AstroPhotography</a> <a href="https://pixelfed.social/discover/tags/Exposure?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#Exposure</a> <a href="https://pixelfed.social/discover/tags/Oregon?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#Oregon</a> <a href="https://pixelfed.social/discover/tags/Explorer?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#Explorer</a> <a href="https://pixelfed.social/discover/tags/PNWonderland?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#PNWonderland</a>
World Beauty :verified:<p>The Tails of Comet Hyakutake<br>Credits: Discover the cosmos!, Vic Winter, ICSTARS<br><a href="https://universeodon.com/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://universeodon.com/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://universeodon.com/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a></p>
Dave xxxiv 🇨🇦📷🔭✨<p>Finally got back out to a proper dark sky this past weekend. Neighbouring camp site had crazy bright lights left on all night - thus the lit up trees. Localized <a href="https://mastodon.social/tags/LightPollution" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>LightPollution</span></a></p><p>Following night found a spot away from camper lights.</p><p>Wasn't the best sky transparency but the overall experience ... cathartic!</p><p><a href="https://mastodon.social/tags/nlastro" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nlastro</span></a> <a href="https://mastodon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <br><a href="https://mastodon.social/tags/TerraNovaNP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TerraNovaNP</span></a></p>
Emanuele Balla<p>Circling back on what was pretty much my first real attempt at <a href="https://masto.ai/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> with DSLR, lens and star tracker, and reprocessing the stack from back then with today's tooling and experience.</p><p>With today's knowledge it was still somewhat salvable, I'd say. Still not great, but not terribly bad either...</p>
grobi<p>Lunar eclipse<br>A lunar eclipse is an astronomical event that occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. Such an alignment occurs during an eclipse season, approximately every six months, during the full moon phase, when the Moon's orbital plane is closest to the plane of the Earth's orbit.</p><p>This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, which can happen only on the night of a full moon when the Moon is near either lunar node. The type and length of a lunar eclipse depend on the Moon's proximity to the lunar node.</p><p>When the Moon is totally eclipsed by the Earth (a "deep eclipse"), it takes on a reddish color that is caused by the planet when it completely blocks direct sunlight from reaching the Moon's surface, as the only light that is reflected from the lunar surface is what has been refracted by the Earth's atmosphere. This light appears reddish due to the Rayleigh scattering of blue light, the same reason sunrises and sunsets are more orange than during the day.</p><p>Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. A total lunar eclipse can last up to nearly two hours (while a total solar eclipse lasts only a few minutes at any given place) because the Moon's shadow is smaller. Also unlike solar eclipses, lunar eclipses are safe to view without any eye protection or special precautions. </p><p>TEXT<br>From Wikipedia, the free encyclopedia</p><p>VIDEO<br>Lunar Eclipse Essentials</p><p>Explainer Video about Lunar Eclipses<br>Updated April 22, 2022<br>Credit <br> * Scientific Visualization Studio/NASA <br> * Goddard Space Flight Center. <br> * Lead Producer: Chris Smith. <br> * Lead Visualizer: Ernie Wright. <br> * Producer: David Ladd. <br> * Technical Support: Aaron Lepsch.</p><p><a href="https://defcon.social/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://defcon.social/tags/moon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>moon</span></a> <a href="https://defcon.social/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a> <a href="https://defcon.social/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>photography</span></a> <a href="https://defcon.social/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://defcon.social/tags/astronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astronomy</span></a> <a href="https://defcon.social/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://defcon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://defcon.social/tags/ESA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ESA</span></a> <a href="https://defcon.social/tags/education" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>education</span></a></p>
StellarSnap<p>📸 Cat's Paw Nebula from JWST</p><p>This stunning nebula, also known as NGC 6334 or the Bear Claw, lies 5,700 light-years away in Scorpius. Captured in infrared by the James Webb Space Telescope, it reveals a turbulent stellar nursery where stars nearly 10 times the Sun’s mass are still forming.</p><p>📷 NASA, ESA, CSA, STScI</p><p><a href="https://mastodon.social/tags/CatsPawNebula" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CatsPawNebula</span></a> <a href="https://mastodon.social/tags/NGC6334" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NGC6334</span></a> <a href="https://mastodon.social/tags/JWST" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>JWST</span></a> <a href="https://mastodon.social/tags/NASA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NASA</span></a> <a href="https://mastodon.social/tags/InfraredAstronomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>InfraredAstronomy</span></a> <a href="https://mastodon.social/tags/Astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Astrophotography</span></a> <a href="https://mastodon.social/tags/StellarSnap" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>StellarSnap</span></a> <a href="https://mastodon.social/tags/Space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Space</span></a> <a href="https://mastodon.social/tags/Scorpius" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Scorpius</span></a></p>
World Beauty :verified:<p>Northern Equinox Eclipse<br>Credits: Stan Honda<br><a href="https://universeodon.com/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://universeodon.com/tags/space" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>space</span></a> <a href="https://universeodon.com/tags/astrophotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>astrophotography</span></a></p>
TrendingLive feeds
Mastodon is the best way to keep up with what's happening.
Follow anyone across the fediverse and see it all in chronological order. No algorithms, ads, or clickbait in sight.
Create accountLoginDrag & drop to upload