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Top news results for spectrograph
MLAstro SHG 700 reviewed by Cuiv
Friday, June 27, 2025 by Richard Harris
There’s something quietly humbling (a terrifying) about pointing a tele at the Sun. Not for the glare or the danger—though there’s plenty of both—but because you start to realize just how much is going on up there that we never notice. The Sun isn’t just a ball of fire ...
Galaxy collision at 2M MPH seen
Monday, December 16, 2024 by Russ Scritchfield
A massive collision of galaxies, triggered by one traveling at an astonishing 2 million mph (3.2 million km/h), has been observed in unprecedented detail by one of Earth’s most powerful telescopes. The dramatic impact occurred in Stephan's Quintet, a nearby galaxy group consisting of five gal...
WASP-39 B investigated by NASAs Webb
Tuesday, July 23, 2024 by Richard Harris
Researchers using NASA’s James Webb Space Telescope confirmed that an exoplanet exhibited differences between its eternal morning and evening atmospheres, validating previous models. WASP-39 b, a giant planet with a diameter 1.3 times greater than Jupiter and a similar mass to Saturn, orbits a...
Astrophotography filters: How narrow is too narrow
Saturday, June 29, 2024 by Jim Thompson
For many years now I have been promoting the idea that for emission nebulae, whether you have light pollution (LP) or not, the narrower your filter’s pass bands are, the better. Time and again my test results have demonstrated this relationship to be true; that object contrast and signal-to-no...