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This is 5h45min (69 x 300s subs) in dual narrowband HOO. Acquisition: Askar 131f @ 983mm scope Processing: Siril – preprocessing & processing: GraXpert background extraction / spectrophotometric color calibration / BlurXterminator / NoiseXterminator / StarXterminator / generalized hyperbolic stretch (histogram stretch for stars) Affinity – processing: saturation / curves submitted by /u/GraylySquare224 |
Published July 23, 2026 All Meta Tags Duke Research Saves Lives Schools Pratt School of Engineering Trinity College of Arts & Sciences Scholars Kate Scholberg Arts & Sciences Distinguished Professor of Physics Professor of Physics Associate of the Duke Initiative for Science & Society Bass Fellow View Scholars@Duke Profile Yiran Chen John Cocke Distinguished Professor…
As technology innovation and adoption accelerate, five trends reveal how successful organisations are moving from experimentation to impact. Last year’s Tech Trends report predicted that artificial intelligence would become akin to electricity, a foundational element that’s seamlessly baked into an incredibly broad range of products and services. This year’s report, the 17th annual edition of…
Bumblebees may be small, measuring only about an inch long, but they play an enormous role in global agriculture. About one third of the world’s food production relies on pollinators such as bees. At the same time, these vital insects face growing pressure from pesticides and other environmental threats. Modern pesticides have helped farmers protect…
Scientists have uncovered how a toxin produced by a common gut bacterium gains access to colon cells, solving a mystery that has puzzled researchers for more than 15 years. The discovery not only explains how the toxin begins damaging the colon, but also points to a possible new way to block its effects before they…
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The ocean waters around the Galápagos Islands are hot. Very hot. Observed for centuries in the Pacific by fishers, the El Niño weather phenomenon begins when the prevailing trade winds slow, allowing warm water to spread east along the coast of South America. Right now, the pattern is in full flow and will build from…
