#hydrogen-alpha — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #hydrogen-alpha, aggregated by home.social.
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That special #astronomy feeling when your new Halpha filter arrives, is installed in the #telescope and.... it's totally cloudy all week 😂 #Toronto #weather
#science #Astrodon #observatory #yorkuniversity #hydrogenalpha @AllanICarswellObservatory
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Recent Solar adventures
A full-disk image of Sun, as recorded in hydrogen-alpha light. Visible are two large sunspots, several serpentine filaments, and prominences that appear around the star’s limb. Credit: Stella-Luna Observatory / James GuilfordOctober 3, 2025 — We had been having quit a lot of trouble lately, recording data and reproducing images of Sun with prominences. There was some early success but even those images were a struggle to produce. Taking a look at suggested camera settings found in an article on solar imaging, one thing stood out — gain! We had nudged the camera’s gain setting upward and that’s not helpful and certainly not recommended; the setting should be very low or even zero! A few adjustments in data capture parameters was all it took to make a big difference in image processing and results!
Sun’s northwest quadrant, as recorded in hydrogen-alpha light. Visible are several filaments, as three prominences appear along the star’s limb. The “peach fuzz” appearance of the edge of the solar disk is caused by the presence of innumerable spicules or small prominences.We’re very pleased with Barlow-boosted views, shown here, though we’re still having some issues with achieving even lighting across whole-disk views — just can’t seem to get them tuned right with the Coronado SolarMax III. Visual observing was also very good, especially with the TeleVue 10mm eyepiece. October 3 conditions: Clear sky, temperature of 74°F, light southeast wind.
A close-up view of two large sunspots, as seen in hydrogen-alpha light. Solar plasma follows the intense and curved lines of magnetic force to highlight the turmoil in the vicinity of the spots.#2025 #astronomy #astrophotography #chromosphere #hydrogenAlpha #prominences #solar #sun #sunspots
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This is the First-Ever Photo of Sun’s Chromosphere and a Rocket Launch
Blast off. The Sun’s chromosphere is apparently disturbed by the wake of the rocket. Astrophotographer Andrew McCarthy used…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #AndrewMcCarthy #astrophotography #chromosphere #hydrogen #hydrogenalpha #Sun
https://www.newsbeep.com/us/166468/ -
This is the First-Ever Photo of Sun’s Chromosphere and a Rocket Launch https://petapixel.com/2025/09/18/this-is-the-first-ever-photo-of-suns-chromosphere-and-a-rocket-launch/ #astrophotography #AndrewMcCarthy #hydrogenalpha #chromosphere #Spotlight #Features #hydrogen #Space #sun
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The E-M1 Mark III Astro Perfectly Sees Hα Radiation for Vivid Celestial Photos https://petapixel.com/2024/07/02/the-e-m1-mark-iii-astro-perfectly-sees-h%ce%b1-radiation-for-vivid-celestial-photos/ #omsystemem1markiiiastro #hydrogenalpharadiation #astrophotography #hydrogenalpha #Equipment #omsystem #olympus #halpha #astro #News
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The Sun today in hydrogen alpha. Processed with limb darkening correction and in natural/inverted chromosphere luminance. #sun #hydrogenalpha #space #science #zwoasi #daystarfilters
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The Sun today in hydrogen alpha. Processed in natural and inverted chromosphere luminance. #sun #hydrogenalpha #space #science
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The Sun today in hydrogen alpha. Processed in natural and inverted luminance.
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The Sun today in hydrogen alpha. Processed in inverted and natural chromosphere luminance.
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The Sun today in hydrogen alpha. Processed in natural and inverted luminance. Where I typically use Photoshop and Topaz to process these, I am evaluating PixInsight for solar image processing. This is pretty decent and I’ve yet to learn how to use it…
#Sun #hydrogenalpha #daystarfilters #zwoasi #star #space #science -
The Sun this afternoon in Hα. Processed in inverted and natural chromosphere luminance.
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The Sun this morning in hydrogen alpha
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The Sun today in hydrogen alpha. Processed in natural and inverted chromosphere luminance.
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Despite some stubborn clouds, I caught the International Space Station transiting the Sun today.
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The Sun today in hydrogen alpha. Processed with inverted chromosphere luminance.
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The Sun today in hydrogen alpha with inverted chromosphere luminance. The huge sunspot AR3190 continues to dominate the view.
The second image is just for fun to see how it'd look. It overlays the Hα image over a 171 angstrom (Å) image taken by NASA's Solar Dynamics Observatory at around the same time. Looks all dramatic but isn't particularly useful scientifically.
#Sun #Star #hydrogenalpha #daystarfilters #zwoasi #Astrophotography #space #science
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The Sun today in hydrogen alpha along with a zoom into active region 3190.
Inverted chromosphere luminance.
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The Sun today in hydrogen alpha. Processed with inverted chromosphere luminance.
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The Sun today in hydrogen alpha. Processed with inverted chromosphere luminance.
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Sunspot active regions 3140 & 3141 this morning in hydrogen alpha. Processed in natural and inverted luminance.
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The Sun this morning in hydrogen alpha. Processed with inverted chromosphere luminance.
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The Sun today in hydrogen alpha wavelengths. Processed using inverted chromosphere luminance. A pair of sunspots and a few large prominences made for a really nice view.